ML18043A593

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Nonradiological Environ Monitoring Rept 1978. Supporting Data Encl
ML18043A593
Person / Time
Site: Palisades Entergy icon.png
Issue date: 03/31/1979
From:
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18043A591 List:
References
NUDOCS 7904050254
Download: ML18043A593 (399)


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{{#Wiki_filter:1978 Nonradiological Environmental Monitoring Report Palisades Nuclear Plant Consumers Power Company March, 1979 7 9 0 4 0 5 0 25i

  • PALISADES NUCLEAR PLANT ENVIRONMENTAL MONITORING PROGRAM - TECHNICAL SPECIFICATIONS 1978 ANNUAL REPORT
1. METEOROLOGICAL NETWORK OBSERVATIONS (4.11.6)

Thirteen meteorological stations were established, as de-scribed in Amendment 6 to Facility Operating License DPR-20 (Change 10 to Appendix A) to document effects of cooling tower operation on meteorological variables. The stations were established by and are serviced under contract with the Department of Atmospheric and Oceanic Science, The University of Michigan. In December 1978, a summary of

  • meteorological measurements for the period January 1977 through December 1977 was complete~ as Data Report No 6, which is included as Appendix A. Quarterly progress reports for the periods April 1 through June 30, 1978, July 1 through September 30, 1978 and October 1 through December 31, 1978 are included as Appendix B. The sixth annual report for the period of April 1, 1977 through March 31, 1978 is included as Appendix C.
2. NOISE SURVEY (4.11.6)

No additional noise surveys were conducted during the re-porting period .

2

  • 3. COOLING TOWER DRIFT STUDY (4.11.6)

Introduction Many portions of the cooling tower drift study at the Palisades Nuclear Plant, initiated in January of 1973, were terminated at the end of 1977. The only section that was continued during 1978 is Section 4.ll.6b (vegetation composition). Vegetation composition data for 1977 and 1978 are presented in this report. Additionally, an analysis of the data collected per Section 4.ll.6a (precipitation collection and analysis) from 1973-1976 has been presented in a paper that is attached as Appendix D.

  • 4.ll.6b - Vegetation Composition Summer Flora Tables 1 and 2 list the densities of plant species that were 2

observed in the m quadrats during the summers of 1977 and 1978, respectively (l) The densities given in Tables 1 & 2 indicate the average number of times a given species was 2 identified in the four m quadrats on each plot. (1) For a description of the sampling methodology see: Rochow, J. J. 1975. Palisades Nuclear Plant Cooling Tower

  • Drift Study: Preoperational Study Report. Consumers Power Co submittal with letter of Jan 31, 1975 to Directorate of Licensing, NRC.

3 The vegetation on Plots 1, 2, 5, 8 and 9 have received the

  • greatest impact resulting from cooling tower operation (2,3)

On these plots there is a general density increase in those species which require abundant sunlight. Removal of much of the forest canopy, by chemical or ice impaction, has created more favorable conditions for these species (eg. Aster cordifolius, Solidago caesia) (Table 1 & 2). Addition-ally, during 1978 several new species were recorded on the severely impacted plots due to favorable conditions for early successional stage species (Table 2). A graph (Figure l) of diversity indices (Shannon Index) for the sample plots throughout the study period shows that for the plots closest to the cooling towers (~60m) plant species diversity decreases the first three years (1975-77) of cooling tower

  • operation. The introduction of early successional stage species in 1978 causes plant diversity to increase for those same plots. The more distant plots (60-85m) show plant diversity lowest during the first year of the cooling tower operation (1975) with a gradual increase back to original preoperational conditions. However, the floral components present during preoperational (1973) and post-operational (1978) have changed. The most distant plots

(~85m) have remained stable during the study period. (2) Rochow, J. J. 19/8. Compositional, Structural and Chemical Changes to Forest Vegetation from Fresh Water Wet Cooling Tower Drift. In: Cooling Tower Environmental - 1978 -*--------~12-I'GG-eed-i-ng-S-.-May:-~-4-,-1-9-t-g-Un-i-v-.-0f'-MI),-G0+/--1-ege-Fa-r-k:~.- - - - - - - - - - - - - ( 3) Rochow, J. J. 19/8. Measurements and Vegetational Impact of Chemical Drift from Mechanical Draft Cooling Towers. Environmental Science and Technology 12: 1379-83.

4 Tables 3 and 4 list the plant species that occurred on the 1/50 acre plots which were not observed and counted in any 2 of the four m quadrats during 1977 and 1978, respectively. Again, especially for the 1978 data, previously unrecorded species have been identified as occurring on those plots most severely disturbed. Tables 5 and 6 list the mean percent cover of moss species 2 that were identified in the four m quadrats for 1977 and 1978, respectively. Figure 2 is a summary of moss cover throughout the study period. For all plot groupings there is a general decrease in mean percentage moss cover through time. The greatest decrease is seen in those plots that are less than 85m from the cooling towers. This decrease is .caused by a reduction, or elimination, of the canopy layer allowing environmental conditions unfavorable to mosses. Considerable fluctuation in percentage moss cover on those plots greater than 85m from the cooling towers is caused by natural variation in annual climatic conditions. For example, the average precipitation for the months of April - July was considerably higher during 1975 and 1976 than in 1974 and 1977. Hence conditions were more favorable for mosses .

                                                                  'l'A1lLE l                                                                  5 PALISADES DHTF~' rn'UDY - OPFJ1A'I'lONAL !JA'l'A: Mt;:AN SPECIES DENSI'.l'Y IN NUMBEnt; PER MF.'l'ER SQUAHE - - SUMMER FLORA 1977 Plot Number 2           3                        5        6         8       9          10    12      13                15 l\cer r*uurw II                                                                                                                                   0.25 f\ce1* sacL:11 arum                   0.25                                                                                               2.50     0.2)

/l.melu.rH~hie !' species 0.25 A'}ui le1~ia canaclensis 0.25 1.25 /\eabis Jae vigutu l. 75 1. 25 11. 75 l\r*aLh: .!yr al.a 0.75 llt"uliu nud icaulis J.. 50 o. *15 2.00 Aster cord lf.'olius 1.00 9.25 0.25 *r. 75 0.25 1.00 1.25 CtU't::X llCliH ylva1dca 0.50 1.00 1.00 0.75 3.25 l. 75 'T .50 Carex :;pee ies 2.75 0.25 Cat*1.:x ~pee i.es 1.00 1. *75 0.50 L!himaphJ Lu. uml.Jellata 1.50 2.50 1.00 1>1*yoptc:1*is murgiualis J..00 0.75 l*'t:.igt-'l'(Hl 8 pccics 0.50 1~:u0uymw.i rn nerieuuus 2.00 1. 75 9.00 0.50 .1. '15 11.50 0.50 0.25 ~.oo l. 75 l1'1'ttXiH1lU <ti 11e1*icaua 0.25 0.50 1. 25 3.00 0.25 0.25 0.75 1.00 2.25 .1. 00 l:a.1 Ltuu Jan ceu.lu:trnn 1.00 0.75 Other CJr-aG ses 0.50 10.50 18.oo 5.25 6.25 0.50 27.75 25.00 JJ,Ll1E!r11uri.a vlride8 0.25 I lruuu we lj s virt~iniana 0.75 2. '(5 0.25 0.25 0.50 .l. 25 0.25 .l. 75 1.25 0.25 JlcpaLicu runerieana .1. 75 0.25 Loni ceru c auuLleu::>is 0. '75 Maiauthemu Ill cunadense o.5u 5.50 15.25 6.25 811. 25 M:itcliella re1,ens 11. 50 MoJJardu pu nctata 0.75 .l. 00 2.25 Ostrya vir giuianu 0.25 0.25 u.25 ra11j cum np ecies 0.25 1~0d j c 11J.ari !l cauadensis lli. '15 l'o.l.y1'.011utu tr! puliescens 3.00 7.00 0. 75 3.50 0.25 2.50 0.50 3.25 Pol.ypocli tun vulgure 0.25 Pr*euan Lhes a.Luu 1.25 0.75 i'l't!ll<UltlteLl ultissima 0.50 0.25 0.50 J1t'll!lLU:i 8Cl' otina 0.25 0.50 l. 50 3.00 Pruuu:..; vir giniuua l.25 0.25 0.5U 0

  • cl5 0.50 .l. 75 0.25 .l. 50 0.25 l)tt~I' Jd i Ulll u.quilinum 2.25 Quer1.~U:.:.i i*u Lra 0.25 0.25 .l. 00 3.00 0.50 0. '15 .l. 50 0.25 1.50 5,50
                                                                      'J'AllLJo: 1 (Contd) 6 PALISADES lJIUF.l' S'l'UDY - OPF.HA'J'IONAL DA'l'A:   MEAN spgcrES DENSITY

'T'-'N'---'-N'-"U'-'M-=-ll=:cgj=~~ pgn ME'l'F.R ~JQUAHE -- SUMMim FI.OHi\ 1977 Plot N1.u11lit:r 1 2 3 5 6 9 10 12 13 15 Hliu:; radica11s 0.25 llulnrn aJ.lee;neniensis 0.50 0.25 fju:jsaf:n1s al bi cl tun 2.25 0.25 2.50 9.00 3.75 1.25 0.25 11.50 8.'(5 0.50 Smi l.uciua raccmosa 0.25 0.50 0.50 timi-1acintt steJlata 1.00 0.75 6.50 1.00 30.00 Srnl.lu.x herlH1C'.ea 0.25 2.00 2.'(5 Simlux hispidu 0.25 0.75 0.25 0.50 0.75 0.50 Sul.i<l.ueo ca.e~1iu 0.75 2.00 0.25 l.50 11.00 J.'7.25 3l1.00 2.75 3.25 16.50 6. 50 0.25 rt1ar1.txaewu o J' fi c i rmle 0.75 1.)0 l ax11:J cunudensi:J 1 1 0.25 0.25 0.75

'!1.il ia wnericauu 0.25 0.25 0.50 0.25 0.75 0.50 0.'(5 0.25 1 1 1 ~; LI/ ~f.t eu.r1atlen~is 0.25 0.25 V.i.lJUJ"llUllL acerifolium 6.oo '(. 50 1.50 1. 75 Vitus uestivalis 0.25 Vitus vulpina 0.25 0. '15 0.50

                                                                             'rABl.E 2 7

PllLIGllllEfl ])IU!i"l' S'I'UDY - OPE:Hll'l'IONllL DA'l'll: ME:AN SPE:CIE:S D!o:NSI'l'Y IN NlJMilf~l"W P~:R MJo:'rE:R SQLlllHE - - SUMMl':H !'LORA 19'(8 Plot Number l 2 3 5 6 (l 9 10 12 13 15 J\cc:!r* ruJ,rwn 0.25 Ac:e..:r succharwn 2.00 0.25 llme.lt uiehier species 0.25

 /\qni 1.egla cu1H.t.densis      0.75                                                                             2.00 l\1*ub1 s Juevii.;utu                                                                     1.00        0.50 llrubi s .Lyruta                                                                          0.25                                           l.00 llru.I i u H"wUcauli.s                l. *75                     1.00                     l. '(5 llGL.::1 cn1*d ifolius          2.50  l. 25                                   6. '(5                  0. '15    11.25         0.25       0.25  l.'15 I\:; Let mri.c rophyllus                                         0.50 Car*ex gri>ieu                        3.50 Ca1*cx pcnsylvanica                                                                       l. 75       3. '(5     0.25              3.00  2.25  5.50 Car ex species                  0.50 Cut*ex ~3pccies                                                                                                  1. 50                   0.25  0."(5 Ch.i.rnaplillu umbel.lo.tu                                                                                                    0.75 3.25               0.'15

-x*c1rsi tun apecies 0.50 U.25

  • 1luuc1 IH cu rota 0.25 llt'.YO! >tei*i::i marginal is 0.50 1.00 0. '15

?:*1~:ri~~~.. ron species 0.25 l*:uouy lllW.'.J americanus 2.75 l. 75 6.75 0.25 0.50 5.00 0.50 3.25 0.75 f*'t*axi nu8 ;uuericu11a 0.50 0.75 2.00 0.50 0.25 0.25 1.00 2.00 0.50 Ga.I iL Utl J uuceolutwn 1.00 1.00

  • Gu] itlill ~q:.ecies 1. '15 nen.u li.1011 11u.1culu.ttun 0.25 Uth<.!l Gras~es 2.75 0.50 7.25 12.00 15.50 21. 75 0.25 21.50 16.50 llabe110.riu viridl.s 0.'(5 3.25 lla111e11 1elis virginirrna 3.00 1. 50 0.25 0. '15 0.50 2.00 1.25 0.50 llepaL ica wne.ricaua 1.00 0.25 o.*15
    • 1.actt ICU cttnaden~is 0.25
.Lactt lCU species 0.25 Luutc 'era '.!anuciensis 0.)0 Muiui tLhemtun cauadense 2.25 9.25 22.50 6.00 113. 75 1*1i Lei 1e.l..l. t*epe11u 2.*75 Mo nm *fl&. punctatu 1.25 8.50 2.75 1htr*y a virginiLl!Hl 0.25 0.25 0.25 0.50 0.25 0.25
  !'edit.:*uluris cuuudensis                                                              l~. 50 2.'(5 '(. '15       1. '15        6.'(5                   0.75                   1. 50                   0.50  l1,00  0.50 holyi.~u111.1tum pulJescens
                                                                   'l'AllLE 2 (Contd) 8 PALlfJADES llRU"r S'l'UDY - OP~'.HA'l'IONAL DA'l'A: MEAN SPECIES DENSI'l'Y IN NUMBERS !'EH ME'l'Eil SQUME - - HUMMJ.:H i"LOHA 1978 Plot Number
 ~Jpgc.l    L*:£:                 1      2         3                         5      6           (J      9        10    12     13           15 Pol )'put.ii mu vulgure             0.25                                o.;:>5                                                   0.25 P1*e 11anlhes a.I.ha                                                    l.00                        0.50 P1*c n<1nl.lleu altissima                                               0.50     0.25      0.50     0.50 Pru JIUS uerotina                                         l.00                   0.25                                            2.00   2.75 Pru nus virginiana             2.00 1.00                                1.25               0.25     1. 75      0.25  0.75   1.25 PLe dtliw11       11quiliHw11                                                              2.50
 <iu*_* rcus rub1*a                              0.25                    1.25     3.25      0.50     1.00             1. 25  0.25 l.00    3.50 Hub ll!J ullegnenieusis                                   1.00                                      0.50                         0.25
  • Hub Uti species 2.00
  • >t0wu UUC\lS canudensis 0.25
n1fras albid1un 0.25 3.00 2,c{5 8.75 5.75 2.00 I. 50 5.00 8.75 0.50
 !:irni ladna t*ucemosa                          0.75                                                                        0.25 0.25 Smi lac:iua stellata                                                    0.50               1. 75    5.75       9.50        22.75 Smi lax l1erbacea                                         0.25          l. 75                       0.25                    3.50 Sud lux his pi du                               0.25      0
  • c{5 0.25 0
  • cl5 0.25 l.00 0.50 f:)c,l ldugo cueHia 2.00 11. *75 0.25 0.25 3.25 20.75 8.00 5.50 5.50 19-75 5 *c{5 0.25
 ~iul idu~~o      species       1.00 11.00                                                           0.25
 'l'ut* axacwn     officinale   0.75                                     1.25                        l.00                    0.25
 'l ux us cana.densis 1

0.50 0.25 0.25 0.75 1'il t&. 1uue1*icana 0.25 0. c{5 0.50 0.25 0.25 1.00 0.25

 'l':Jll ~~n canurlensis        0.50                                              0.25 Vc1* Ui.LSCUUI    tttapsus          0.25 Vih ur*11urn acerirolium       l.25 7.2)                                6.25                                                     2.00   1.25 Vit 11S nest.ivo.lis                                                                                                 0.25 V.i t LIS vul pirm             0.25 0.50                                l.00                        0.75
  • Species uot p1ev1ously recorded
  *
  • 9
                                                                    'rABLE 3 PALlLlADES DHII*l 1 S'l'UDY - OPEHA'J'IONAL Di\'l'A:    OCCUHANCE 01? PLANT SPECIES Ji'J 1/50 ACHE PLO'l' - SUMMEH F'LOHA 19TI P:tot Number i.il 1 El!Il~S                l       2          3             l1                      6         8                    12 5                                9       10    13 14   15
 /leer l*ubrrnu                                                                                                      x i\cer siiechu.rwn             x                  x             x                       x
 /\rnclunchi.er species                                                                                              x        x    x
 /\t*abLi Jut~vigata At*utii:; Jyratu                      x                                                                                      x
 /\t'uU.a uull.i.caulis        x J\!.)pJt:1d Ulll pJatyneuron                                                                     x M;t<:r cor<Ji ro.Lius                 x          x f'l.sLt.=r mucropbyllus                                        x HuLryeld um virginianwn                                                  x            x*

Curex u..lbtu*sina x x Cu1*ex. l:';.L'iuea x Ca1*ex pensylvunica x x x Can:x species (red) x x Ci1i111<1pldla umheJluta x x . Cll'niwn :;p. x x Co1*11u:.> stoloui1'eru x Dryopteris rnargirw.lis x x E;riger*on species x 1,;uphot'.i.ua corolla ta Eup1Ior*iln1 species x x l*'vgu8 g!*artcli1'olia x x x x I1'1*uxinLt::> wuericunu. x Gali tun *1 a11ceolatw11 x Gall urn spt*cies x Gerauium maculatwn x x x Uru.sses x

 }l:.1111arneli:.; virglu:iaua                                                                                             x  x JIL;trix prttula                                               x
 .lu1i.ipcru!:; c:ouuuunis                                                              x         x Lycopodium luddulum                   x MILcheJl re:: pens            x Mun;11*da puucto.tu                                                                    x                               x Monott'upu uuit'lora                                           x Ostryu v Jr1~iniana           x       x                                   x                                                  x I                                          I
                                                                          'l'ABLE 3 (Contd)                                           10 PALISADES DHIFT S'l'UDY  -    OPEllA'fIONAL DA'l'A i OCCURANC1': OF PLANT SPECIES 1N 1/50    ACHE PLO'I'    - SUMMEH FLOllA 19TI Plot N1u11ber SPECIES                                1      2        3            !1           5           6       u          9       10 12 13 lli  15 Pu1*tl1e11ocissus         quinquefoliu                              x                                                              x Pin us struuus                                                     x            x           x                                          x P<}lYl~o11at1un pubt:seens                                                      x                                                      x P0Jypodi11111 vulgure                         x                                                                                    x Pr<.:11uuLh0s u.ltissima               x      x                                                      x                   x Prm1u~ :.;erotina x                   x Pcunus virginiana                                      x                                                                    x PLelea Lri fol.iuta                                                                                                             x Que re us rulira                        x      x                                                                          x Hilles cynosbuti                                        x            x            x                                             x Hubu:; species                                          x                                             x f>a~l!iu.l'ras ulbidwn                 x                            x                                                                   x Srni.lu.cina racemosu                          x                     x                                x          x        x              x Srnilacina >itellata                                                                          x                              x SmiJux he:rbucea                        x                                                     x                  x        x Grni.lc1x hispida                                                                                                         x  x     x
~JuliUago         spec.ies                              x l ura.x.ucurn oi'f icinule 1 1 x                                                      x 1
 .l't1 Nu:.; <.:t111udcns:is            x                                                             x

'L1ili.a rn11e1*.icu.nu. x 1 t~Hl(~ll C:hHuUeusj s x x Uvu.lariu (c'.randifloru x Vibunu1111 acerifoliwn x x x x* x x Vi Lu:; Ul!8 ti vulis x x x x Vi tu:.; vulpi na x x I

                                                           'l'AllLE 11 11 PALISADES llRUJ' S'l'UDY - OPEHA'l'IONAL DA'l'A; OCCUHANCE OF PLAN'f SPECIES IN l/50 ACHE PLO'r - SUMJ.JTo:R F'LOHA 19'(8 Plot Nwnber fll*ECU:fl                 l     2         3            1,          5         6       8        9        10        12     13   111  15

/\.<..:er ruLrrnn x fleer sac:eharwn x x x x x x Am<!] uuehier species x x x x x flquj lei:;ht c.anadensis x AralJi~ lyrutu x x Aruliu uullicuulis x Ac:pJ.erd.urn platyneur*m1 x Car ex ullJur~iJH:i x x x Car ex p,,nsylvanica x x Carex species x x x Iluucun earota x x Dryopt0ris rnarginalis x Epif'ugus virginiuna x Eupho1*iba species x x F u1~us granllifolia 1 x x x l*'caxinus species x Culiurn lanceolatmn x G1tlj IUH species x (i(:.ra11i.um 111uculatIBn x x x (; n1D~;es x ll:unnrnelis virginiana x x x J11niperus conununis x x Lnctuca cauadensis x x Luctueu species x Mitcliella rep ens x Mon11rda punctata x Ocnothera biennis x llfitrya virginiana x Pinuu strobus x x x x Polygonatum pubescens x x l)renantlLes altissima x x Pr*uuus :-ierotiua x x x Pt"llllU::> vln~iniuua x l'teriditm1 aquilinu111 x x Que1*cus nil.Jr a x x x x Hhu,; rl:ltf-ieuu:..i x Hi lie,; eyno~liat:L x x x x

                                                                'l'AllLE !1 (Contd) 12 Pl\LIS/\DES DHHl' S'l'UDY - OPJ,HA'l'IONllL D/\'1'11: OCCUHl\NCE OF' PLl\N'l' SPECIES IN 1/50 /\CHE Pf.O'J' - SUMMl~*:J"--'-'F-L::::O"'H"-'ll-"-19,:,.ci.:(8::__ _ _ _ _ _ _ _ __

Plot l~ul(1ber t-JPECil!!S l 2  :) 11 5 6 8 9 10 12 13 14 15 [:as~u{'ru.s al bid LUii x x x fiuii lacina racemosu. x x x x x

J111:i J.acino stelluta x x ,, x flrniJ ax herbaeea x x X: x fJnd lax hispidu x x x Done bus urvensis x
~Paraxucwn oft'ici nale                x J.uxns canude11sis 1 1                                                                                         x                       x
'1'.i.J j [L 1u11er icunu                                                                  x                        x
'Jlsu1:.a cunadensis                            x            x Uvuln.l'i u granui flora       x       x Vec1Jasct1111 tltapsus         x Vibucuurn ucerif'oliurn
                                     \

x x x x x Vitus ue8tivalis x x x x

TABLE 5

  • 13 PALISADES DRIFT STUDY - OPERATIONAL DATA:

MOSS COVER DATA - SUMMER 1977 Mean Percent Cover Plot Number Species 1 2 3 4 5 6 8 9 10 11 12 13 14 15 Atrichum angustatum 0.03 Aulacomnium heterostichum o.48 Bryum capillare 0.08 Campylium hispidulum 0.18 0.05 0.03 0.06 0.08 0.08 Dicranum muehlenbeckki 0.03 Mnium affine var. ciliare 0.23 0.39 0.16 0.03 0.84 1.64 Plagiothecium cavifolium 0.15 0.69 0.26 0.10 0.23 0.03 0.05 Pleurizium schreberi 4.87 Rhynchostegium serrulatum 1. 58 0.26 0.19 0.39 0.32 0.05 0.08 0.24 Thuidium recognitum 0.03 1~. 08 8.39 Total Moss Cover (%) 1. 73 1. 87 o.63 o.o 9.37 8.92 0. 51 1.12 0.03 0.16 0.0 2.04 0.0

TABLE 6

  • 14 PALISADES DRIFT STUDY - OPERATIONAL DATA:

MOSS COVER DATA - SUMMER 1978 Mean Percent Cover Plot Number Species 1 2 3 5 6 8 9 10 11 12 13 14 15 Bryum capillare 0.02 Mnium affine var. ciliare 0.32 o.49 0.58 o.4o 3.32 Plagiothecium cavifolium 0.19 0.19 Pleurizium schreberi 4.19 Rhynchostegium serrulatum 2.42 o.44 0.16 Thuidium recognitum 0.08 4. 81~ . 4.84 Total Moss Cover (%) 1.01 0.74 o.o 9.03 o.o 0.0 o.o 0.0 0.0 0.0 3.51 0.0

FIGURE 1

  • 15 MEAN DIVERSITY INDEX FOR PLOTS:

0 < 60m

1. 1 ~ 60-85m ,

0 > 85m

r: 1. 0 w*

D

z:
  >-        .9 I-Cl) 0:::

UJ CJ

            .8
z:

0 z z

 <l:
r:

Cl)

            .7
            .6 1973 74       75      76   77           78 YEAR

16 FIGURE 2 MEAN PERCENTAGE MOSS COVER FOR PLOTS: 0 < 60m 6 £ 60-85m 0 > 85m 5

  ~
 "-./

a:: w

 >      4 0

c..:> V) V) 0

?:: 3
z:
 <(

w

 ~

2 1974 75 76 77 7.8

                        . VEAR

17

  • 4. Aauatic The aquatic environmental moni taring program is designed to fulfill two separate regulatory requirements. The NPDES Permit specifies efflu-ent limitations and moni taring requirements under the Federal Water Pollution Control Act. Technical Specifications contain limitations and monitoring requirements also. There.is some overlap between the IU'DES Permit and our Technical Specifications. Therefore, in an attempt to reduce the amount of dual reporting per the Declaration of Goals and Policy (Section 1011( F) of the FWPCA) , the following information, which has been submitted in the NPDES Monthly Operating Reports, is not includ-ed in this annual report:

Technical ppecification 4.11.4 a ) Dilution water temp b ) Dis charge water temp d1) Cooling tower pump suction basin overflar ( gpd)

           ~)   Cooling tower blowdown ( gpd) d3)  Discharge water flow (gpd) e )  Cooling tower blowdown conductivity g )  pH of discharge water Technical Specification 6 .9. 3 .1. D provides for the reporting of IU'DES Permit violations to the NRC. Therefore, when any of the above parameters were violated in 1978, a report was issued to the state and to the NRC .

In addition, the I:IPDES Monthly Operating Reports are available for your review at the Plant. The remaining Technical Specification monitoring requirements are discuss-ed below: a) Thermal Surveys No thermal plume study was conducted in 1978 (T.S.4.ll.4(c)). b) Heat Rejection Heat rejection data is provided in Appendix E. c) Chlorine Residual ~~onitoring Chlorination data is provided in Appendix F. d) Heavy Metals There was no suspected discharge of heavy metals in 1978 (T.S.4.ll.4(h)). e) Fish in Discharge No dead or distressed fish were observed at the discharge during or after chlorination in 1978 (T.S.4.ll.4(j)) .

3 20158 ,--: An Investigation of the

l. Meteorological Impact of Mechanical-Draft Cooling Towers at the Palisades Nuclear Plant i

\ -~ Data Report No.6 Summary of Meteorological Measurements 1

l. for the Period January 1977 through December 1977 Preoa red with contributions from:

1. I I__ I MICHAEL R. WEBER DENNIS F. KAHLBAUM ' II MICHAEL J. ST. PETER WILLIAM W. BEATON I JAMES N. DEACONSON i. I - Ii EDWARD RYZNAR, Project Director December 1978 I [__ Under contract with: Consumers Power Company Jackson, M1chiga n Department of Atmospheric and Oceanic Science College of Engineering

AN INVESTIGATION OF THE METEOROLOGICAL IMPACT OF MECHANICAL-DRAFT COOLING TOWERS AT THE PALISADES NUCLEAR PLANT Data Report No. 6 Summary of Meteorological Measurements for the Period January 1977 through December 1977 Prepared with Contributions from Michael R. Weber Dennis F. Kahlbaum Michael J. St. Peter William W. Beaton

  • James N. Deaconson Edward Ryznar, Project Director Department of Atmospheric and Oceanic Science College of Engineering The University of Michigan Ann Arbor, Michigan 48109 administered through:

The Division of Research Development and Administration DRDA Project 320158 under contract.with:

  • CONSUMERS POWER COMPANY Jackson, Michigan December 1978
                                                                 \

ACKNOWLEDGEMENTS Special appreciation is expressed to Dr. Dennis

                                                              -1 Baker who is principal investigator for the project              .l and to Dr. Harry Moses for his ideas and suggestions pertaining to preparation of this report.

Network data collection was maintained by our man in the field, Donald Pearson. Randy Bliss, Dennis I I

                                                            . _(

Hodges, Ken Kurdziel, Gary Rizzo, Tom.Tharp, and Gordon Urquhart put in many hours of chart scanning,_ digitizing ( and initial computer processing of the data. The measurements program would not have been possible without the cooperation of the property owners listed in this-report, who permitted us to locate meteorological equipment on their property. Our sincere appreciation i is extended to them. Appreciation is also extended to Ms. Bobbi Walunas for typing the-manuscript. Computations were performed on the Amdahl 470V/6 computer at the University of Michigan Computing Center. ii

CONTENTS

  • Acknowledgements List of Figures Page ii iv List of Tables v I. Introduction 1 II. Description of Meteorological Network 4 III. Precipitation 11 I \7' . Temperature 48
v. Humidity 85 VI. Wind Speed and Direction 122 VII. Visibility 172 VIII. Total Solar Radiation 211 IX
  • Summary 218
  • iii

LIST OF FIGURES 1 Page 2.1 Location of Palisades and Donald c. Cook meteorological networks 5 2.2 Topography in the vicinity of the Palisades -\ and Cook networks 6 I .1 6.1 Wind roses for station P03A for 'l 6.lA January 1977 126 6.lB February 1977 130 6.lC March 1977 134 1 6.lD April 1977 l 138 6.lE May 1977 142 6.lF June 1977 146 6.lG July 1977 150 J 6.lH August 1977 154 6.lI September 1977 158 \ 6.lJ 6.lK October 1977 November 1977 162 166

                                                       *r 6.lL  December 1977                         170 6.2 Wind roses for station P07A for 6.2A 6.2B 6.2C 6.2D 6.2E 6.2F January 1977 February 1977 March 1977 April 1977 May 1977 June 1977 127 131 135 139 143 147 6.2G  July 1977                             151 6.2H  Augus.t 1977                                     I 155        I
                                                        )

6.2I September 1977 159 6.2J October 1977 163 6.2K November 1977 167 6.2L December 1977 171 iv

LIST OF TABLES

  • 2.1 2.2 Locations of stations and variables measured Network instrumentation Page 7

10 3.1 Daily total precipitation by station for 3.lA January 1977 12 3.lB February 1977 15 3.lC March 1977 18 3.lD April 1977 21 3.lE May 1977 24 3.lF June 1977 27 3.lG July 1977 30 3.lH August 1977 33 3.lI September 19 7 7 36 3.lJ October 1977 39 3.lK November 1977 42 3.lL December 1977 45 3.2 Maximum precipitation in given periods by station for 3.2A January 1977 13

  '       3.2B  February 19 7 7                        16 3.2C  March 1977                             19 3.2D  ll~pril 19 7 7                         22 3.2E  May 1977                               25 3.2F  June 1977                              28 3.2G  July 1977                              31 3.2H  August 1977                            34 3.2I  Septenber 19 7 7                       37 3.2J  Octobe:::- 1977                        40 3.2K  November 19 7 7                        43 3.2L  December 19 7 7                        46 3.3 Total precipitation by the hour for each station for 3.3A  January 1977                           14 3.3B  February 1977                          17 3.3C  March 1977
  • 20 3.3D April 1977 23 3.3E May 1977 26 3.3F June 1977 29 3.3G July 1977 32 3.3H August 197 35 3.3I September 1977 38 3.3J October 1977 41 3.3K November 1977 44 3.3L December 1977 47 v

I I

                                                           \

LIST OF TABLES (CONTINUED) 4.1 Daily maximum temperatures by station for 4.lA 4.lB January 1977 February 19 7 7 Page 49

                                                    ** ,)
                                                         \'.

52 4.lC March I977 4.lD April 1977 55 58

                                                       '\

4.lE May 1977 61 4.lF June 1977 64 4.lG Jul~* 1977 67 r

   *4.lH  August 1977                           70 4.lI   September 1977                       73      *1 4.lJ   October 1977                         76        I 4.lK  November 1977                         79
                                                         )

4.lL December 1977 82 4.2 Daily minimum temperatures by station for J

4. 2A Januarv 1977 50 4.2B February 1977 53 -  ;

4.2C March 1977 56 4.2D April 1977. 4.2E May 1977 59 62 4.2F June 1977 65 4.2G July 1977 68 4.2H l'mgust 1977 71 4.2I September 1977 74 .) 4.2J October 1977 77 4.2K November 1977 80 4.2L December 1977 83 4.3 Daily average temperatures b" 1 station for 4.3A January 1977 51

                                                     \J 4.3B  February 1977                         54 4.3C  March 1977                           57 4.3D  April 1977'                           60      i 4.3E  May 1977                             63 4.3F  June 1977                            66 4.3G  July 1977                            69      _j 4.3H  August 1977                          72 4.3I  September 1977                       75         \

4.3J October 1977 78 1. 4.3K November 1977' 81 4.3L J:)ecember 19 77 84 vi

,-' LIST OF TABLES (CONTINUED)

  • I 5.1 Relative humidity for P03A and*P07A at six-hour intervals for 5.lA January 1977 Page 86 5.lB Feb_ruary 1977 89 5.lC March 1977 92 C-.* 5.lD April 1977 95 5.lE May 1977 98 5.lF June 1977 101 5.lG July 19n 104 5.lH August 1977 107 5.lI September 1977 110 5.lJ October 1977 113 5.lK November 1977 116 I

5.lL December 1977 119 5.2 Temperature for P03A and P07A at six-hour interv~ls for 5.2A January 19 77 - 87 5.2B February 1977 90 5.2C March 1977 93 5.2D April 1977 96 5.2E May 1977 99 5.2F June 1977 102 5.2G July 1977 105 5.2H August 1977 108 5.2I September 19 77 111 5.2J October 19 77 114 5.2K November 1977 117 5.2L December 1977 120 5.3 Dew point for P03A and P07A at six-hour intervals for 5.3A January 1977 88 5.3B February 19 77 91 5.3C March 1977 94 5.3D April 1977 97

.! ___ \      5.3E  May 1977                        100 5.3F  June 1977                       103 5.3G  July 1977=                      106 5.3H  August 1977                     109 5.3I  September 19 77                 112 5.3J  October 19 77                   115 5.3K  November 19 77                  118 5.3L  December 19 77                  121
  • vii

LIST OF TABLES (CONTINUED) Page 6.1 Percentage frequency of wind direction and speed for station P03A for 6.lA January 1977 124. 6.lB February 1977 \ 128 *.I 6.lC March 1977 132 6.lD _April 1977 136 6.lE May 1977 140 6.lF Jurie 1977 144 6.lG July 1977 148 i 6.lH August 1977 152 i 6.lI September 1977 156 <...~.: 6.lJ October 19 77 160 6.lK November 19 77 164 6.lL December 1977 168 6.2 Percentage frequency of wind direction and speed for station P07A for 6.2A January 1977 125 6.2B February 1977 129 6.2C March 1977 133 6.2D April 1977 137 6.2E May 1977 141 6.2F June 1977 145 6.2G July* 1977 149 6.2H August 1977 153 6.2I September 1977 157 6.2J October 1977 161

6. 2K November 1977 165 6.2L December 19 77 169 7.1 Visibility data for station P03A for 7.lA January 1977 174 7.lB February 1977 177 7.lC March 1977 180 7.lD April 1977 182 7.lE May 1977 184 7.lF June 1977 187 7.lG July 1977 191 7.lH August 1977 194 7.lI September 19 77 198 7.lJ October 19 77 202 7.lK November 1977 204 7.lL December 1977 208 viii

LIST OF TABLES (CONTINUED) Page 7.2 Visibility data for station P07A for 7.2A January 1977 175 7.2B February 1977 178 I 7.2C March 1977 181

'~.

7.2D April 1977 183 7.2E May 1976 186 7.2F June 1977 189 7.2G July 1977 193 7.2H August 1977 196 7.2I September 1977 200 7.2J October 1977 203 7.2K November 1977 206 7.2L December 1977 210 8.1 Daily-totals of incident solar radiation for 8.lA January and February 1977 212 II ' . 8.lB March and April 1977 213 8 .1c May and June 1977 214

8. lD July ~nd August 1977 215 8.lE September and October 1977 216 8.lF November and December 1977 217 9.1 Summary Tables 9.lA Monthly total precipitation 219 9.lB Monthly mean wind speeds and directions 220 9.lC Monthly visibility percentages 221
9. lD Monthly averages of daily total solar radiation 222

'\_ .

  • ix

1 I. INTRODUCTION r" This report summarizes meteorological measurements made at 13 stations in the vicinity of the Palisades Nuclear Plant located on the shoreline of Lake Michigan near Covert, Michigan. Data in this report are for the period January December, 1977, and supplement those in the first data report, which was for the period October 1972 through June 1973; the second data report, for the period July - December 1973; the third data report and supplement, for the period January - December 19741 the fourth data report, for the period January - December 1975; and the fifth data report, for the period January - December 1976. The meteorological stations were established in 1972 as part of a study of the meteorological impact of the mechanical~draft cooling towers a~ the Palisades plant. The cooling towers began operation on 31 March, 1975. Data obtained until then, together with climatological information for stations in the region nearby, have been analyzed to determ~ne natural meteorological conditions near th~ shoreline and their variations with distance inland. As additional data are obtained from the stations with the cooling towers in operation, the analysis is being extended to include a* comparison of conditions prior to and during cooling tower operation. A similar investigation is underway in the vicinity of the Donald C. Cook Nuclear Plant, which is utilizing a once-through cooling system. The Cook Nuclear Plant is located about 40 km south-southwest of Palisades.

2 Measurements from a network of 12 stations in the vicinity i of the Cook Plant supplement those for the Palisades study

                                                                ~l and are summarized in a companion report.

Only brief descriptions of the instrumentation,

                                                                     \

I calibration procedures, machine digitization and data - J processing methods are given here. Detailed information ,-1 I on th~ above is provided in the First and Second Annual Progress Reports listed below. The Third Annual Report describes fog and visibility computations with a cooling tower plume model in addition to analyses*of shoreline meteorological.events which affect the cooling tower plume. The Fourth Annual Report contains analyses of network data

                                                                --1 I,

from the pre-operational period, summaries of initial plume observations and description of a time-lapse camera system for continuous daylight monitoring of plume behavior and effects. The Fifth and Sixth Annual Reports discuss plume behavior and observed effects such as icing and enhancement of total solar radiation, and include analyses of oper- \J* ational vs. pre-operational data. Ryznar, E. and D.G. Baker, 1973: An Investigation of the Meteorological Impact of Mechanical-Draft Cooling Towers at the Palisades Nuclear Plant. First Annual Progress Report, ORA Project 320158, The University of Michigan, 42 pp.

                                                                     \
      , and        , 1974: An Investigation of the Meteorolog-   .. !'
 ---ical    Impact of Mechanical-Draft Cooling Towers at the Palisades Nuclear Plant. Second Annual Progress Report, DRDA Project 320158, The University of Michigan, 78 pp.
 -------,-- ,M.R. Weber, and D.G. Baker, 1975: An Investi-gation of the Meteorological Impact of Mechanical-Draft Cooling Towers at the Palisades Nuclear Plant .

Third Annual Progress Report, DRDA Project 320158, The University of Michigan, 58 pp.

3 and , 1976: An Investigation of the Meteorological Impact of Mechanical-Draft Cooling Towers at the Palisades Nuclear Plant. Fourth Annual Progress Report, DRDA Project 320158, The University of Michigan 102 pp.

        ,     , D.F. Kahlbaum, and W.G. Snell, 1977: An Inves-
  - - -tigation  of the Meteorological Impact of Mechanical~

Draft Cooling Towers at the Palisades Nuclear Plant. Fifth Annual Report, DRD~ Project 320158, The University of Michigan, 103 pp.

        , D.G. Baker, M.R. Weber, and D.F. Kahlbaum, 1978: An
  -,.--Investigation of the Meteorological Impact of MechanTcal-Draft Cooling Towers at the Palisades Nuclear Plant.

Sixth Annual Report, DRDA Project 320158, The University of Michigan, 106 pp. Most tabulations presented here were designed to be similar in form to standard National Weather Service tabulations of climatological data. Although alternative forms of tabulation and more detailed analyses were con-sidered, it was felt that presenting the data in the form of basic tabulations and summaries would be most useful. It is hoped that these data may be useful to other investigators needing meteorological information taken near the Lake Michigan.shoreline. Hourly values of all meteorological variables presented in this report, covering the period from the time of installation of each instru-ment through 31 December 1977 for all stations, are stored on magnetic tape and can be made available. Inquires should be directed to the authors .

4 II. DESCRIPTION OF METEOROLOGICAL NETWORK Location and Nature of Stations Figure 2.1 shows the locations of the Palisades and Donald c. Cook meteorological networks in relation to the nuclear plants, Lake Michigan, and several cities in southwestern Michigan. The topography of the area is shown in Figure 2.2. Shown in both figures are the locations -i of the climatological stations for which various data are

                                                                     - )

available. Temperature and precipitation data for South - *'

                                                                          \

Haven, Benton Harbor, Eau Claire and Dowagiac for the period 1940-1969, for example, are surn.~arized in the Climate of Michigan, a publication available f.rom the Michigan ~*leather ( Service, East Lansing, Michigan. Daily precipitation totals are available for all the stations. In addition, hourly precipitation totals are available for Covert for winter-time, Sodus, Berrien Springs, and Coloma. Daily maximum and minimum temperatures are available for all stations except Covert 1*

                                                                        .J and Coloma. The nearest reporting station which has hourly weather observations (temperature, cloudiness, wind, etc.)                 j II which are also representative of shoreline weather conditions is Benton Harbor Airport, located about 30 km SSW of Palisades and about 4 km from Lake Michigan.      Hourly weather observations

__ ) are taken daily between about 0645 to 2045 local time. I TGble 2.1 is a listing of the latitude, longitude and *_f elevation of each station, the name and address of the J property owner and the variables measured.

5

      • SOUTH HAVEN
                                                          *9
                                                   *B
                                                            *5
                                                                        *6                ~ *7 "BANGOR
                                                   *11     *12
                                                                    *13 0 COLOMA I

l. 0 WATERVLIET SAINT JOSEPH

                   ~~ A;rpc"
                   ~BENTON tt,i.RBOR (BEH) 0 0

STATION TYPES REGULAl STATION . MAIN STATION* NWS CO-OPERATIVE MICHIGAN AGRICULTURE

                                                                                        @ FAA
                                                                                        ~ NUCLEAR POWER PLANT X  WATER INTAKE TEMPERATURE OSODUS OEAU CLAIRE
                    *7                                                              ODOWAGIAC
                                   *11
     *6                 0 BER~IEN SPRINGS
          *B
                      *10
        *9
                                                                            *Miles 0                    5                      10 OGLENDORA 0                  .s.o.                   16J Ki1on1elers
  • 2.1 Location of Palisades and Donald meteorological networks
c. Cook

6 SOUTH NORTH I PALISADES NETWORK

                                                                                  .dJ 6
                                                                                            '@. -~

1l ~\

                                                                                                                 -1
                                                                                                                 --~\

J i MILES la 0 1 2 3 4 s _ffe> Ej10 fy --( 0 1 2 3 4 s 10 _j KILOMETERS

                                                                                                                 ]
                                                                                                                   -\
                                                                                                                       'j

_--\ l 2 COOK . NHWORK tf*' 3 6

            *i' i~ I' 9

SEA LEVEL HEIGHTS ABOVE 1000 FT I 304.8 MI BH - BENTON HARBOR AIRPORT GN - GLENDORA ___ ) a 900 FT 1274.3 Ml BS - BERRIEN SPRING< SD - SODUS 800 FT 1243.8 Ml SH - SOUTH HAVEN CM- COLOMA 700 FT 1213.4 Ml SJ - SAINT JOSEPH DW- DOWAGIAC 600 FT 1182.9M l WV- WATERVLIET EC - EAU CLAIRE LAKE LEVEl 2 580FT !176.SMl Fig. 2 .. 2. Topography in the vicinity of the Donald C. Cook and Palisades Nuclear Plants. Network sites are given by numbers. Other data sources are give~ with letters.

Table 2.1 Locations of Stations and Variables Measured (Variables measured: T = temperature, H = relative humidity, p = precipitation, W = wind, V =visibility, R ~total solar radiation.) Elevation, North West meters above Station Land Owner Latitude Longitude sea level Variables Measured POlA Consumers Power Company 42°19' 86°19 1 187 T,H,P P02A Consumers Power Company 42°19' 86°18Q 212 T,H,P P03A Consumers Power Compar.y 42°19'* 86°18~ 194 T,H,P,W,V,R P04A Leroy Nalls 42°18' 86°17 1 202 T,H,P 30th Avenue. Covert, Mich. 49043 POSA Paul Rood 42°18' 86°15 1 217 T,H,P 30th Avenue Covert, Mich. 49043 P06A Mr. and Mrs. Schwer 42°18' 86°11' 212 T,H,P 30th Avenue Covert, Mich. 49043 P07A. USDA Off ice 42°18' 86°06' 220 T,H,P,W,V,H Bangor, Mich. P08JI. Mrs. Edith Livingstone 42°20' 86°17' 201 T,H,P 7555 24th Avenue Covert, Mich. 49043 P09A Mr. Don Grier 42°21 1 86°15 1 207 T,H,P Airport Manager South Haven Airport South Haven, Mich. 49043

00 Table 2.1 (continued) Elevation, North West meters above Station Land Owner Latitude Longitude sea level Variables Measured PlOA Mr. Harry Sarno 42°18' 86°18' 198 T,H,P 32nd Avenue Covert, Mich. 4~043 1 1 PllA Mr. and Mrs. Neal 42°1a 86°17 208 T,H,P 3'1th !\venue Covert. Mich. 49043 Pl2A Mr. Je:r;-ry Sarno '12°17'. 86°15' 227 J T,H,P R. No. 1, Box 10 Covert, Mich. 49043 Pl3A Mr. Otto Watkins 42°16 1 86°12' 220 T,H,P R. No. 1, 44th Avenue Covert, Mich. 49043

                             \,_ __
                                                                      ' .... _-1
                                                                                 ,___)
                                                                                        ---J
                                                                                             ._)

9 It can be noted that there are 13 stations comprising the

  • Palisades network. The labeling of each station as POlA through Pl3A is for identification by computer in data processing.

All stations have a recording precipitation gage and a Belfort Hygrothermograph. The precipitation gages are calibrated semi-annually. The hygrothermcgraph recordings are compared weekly in the field with an Assman psychrometer. In addition, beginning in December, 1973, the hygrothermo-graphs have been calibrated in controlled humidity chambers at least once every 6 months. Stations P03A and P07A contain, in addition to the above, sensing and recording equipment for measuring total solar radiation, wind sp2ed and *direction, and visibility. A

  • summary of the instrumentation used in the meteorological networks to record the data tabulated in this report is found in Table 2.2

Table 2.2 Network Instrumentation Height Instrument and above Date Calibration Calibration Variable manufacturer grou.nd installed frequency technique (m) (mo/yr) (mo) Precipitation Weighing gauge 1 10/72 6 Static weights Belfort Inst. Co. Temperature Hygrothermograph 1. 5 2/73 6 Calibration Rel. Hum. Model 5-594 chamber Belfort Inst. Co. Wind Speed Gill 3-cup 3 2/73 6 Wind tunnel l\.nemometer Model 12101 R.M. Young Co. Wind Direction Wind Vane 3 2/73 6 Circular Model 104 linearity WeatherMeasure Corp. Visibility Visiometer 1. 5 10/72 12-18 Manufacturer (P-3)

  • Model 1580 3/73 (C-3)

Meteorology 5/73 Research Inc. (P-7) Solar Rad. Pyranometer 1 10/72 12 Comparison with (P-3) standard Model R411 12/72 (~-3) WeatherMeasure Corp. 3/73 (P-7) 12/72 (C-10)

11 III . PRECIPITATION Precipitation is measured with a Belfort Recording Pre-cipitation Gage. It is recorded and digitized to the nearest hundredth of an inch. For tabulation digitized data are reduced_ to hourly totals of precipitation. The data are then tabulated in sets of three tables for each month. The first table gives the total precipitation by day for each station. An M indic~tes missing data. A series of asterisks indicates that the total amount of precipitation which fell during that period is known and indicated as a number in parentheses at the end of the period. The exact time of occurrence during the period, however, is unknown. The second table gives the L. greatest 1-, 3-, 6-, 12-, and 24-hour totals and the third gives hourly totals for each month. The last two tables contain data only for those stations which had uninterrupted records of precipitation for all times during which precipitation was occurring in that month. If data were missing for any hour during which precipitation was occurring, an M is listed for that station .

I--' N Table 3.1A Palisades Network: Daily Total Precipitation (Inches) for January 1977 CAY PO 1 A P02A P03A P04A POSA P06A P07A POBA P09A PlOA p 1 ll\ P12A P13A 1 0.06 0.03 o.oo 0.03 0.01 0.03 0.03 0.05 O.OJ 0.03 M 0. 01 2 0.03 0.04 0.02 0.02 0.02 0.01 0.02 0.01 0.03 0.03 /1 0.01

  • 3 0.02 0.03 0.01 <L 01 0.03 0.01 0.02 0.04 0.03 0.01 M 0.02 (0.05) 4 0.00 0.00 0.00 o.oo o.oo o.oo 0.00 o.oo o. 00 o.oo o.oo o. 00. 0.00 5 o.oo o.oo 0.00 0.00 o.oo o.oo o.oo 0.00 o.oo 0.00 o.oo o.oo 0.00 6 0. 12 o. 13 0.05 0. 10 0.10 0.07 0.08 0.06 0. 11 0.09 M 0.08 0. 06 1 0.05 0.04 o. 01 o.. 02 0.02 0.01 0.04 0.00 0.02 0.04 M 0. 01 0.01 8 0.21 0. 18 o. 11 0.16 0 - 12 o. *14 0. 11 o. 18 0.13 o. 18 ~ 0. 11 0.12 9 0.05 0.06 0.04 0.05 O.CJ 0. OIJ 0.05 0.05 0.03 0.04 M o. 04 0.03 10 0. 15
  • 0.06 0. 11 0.09 0. 11 0. 11 0.20
  • 0.12 ['f o. 10 o. 1.3 11 0.06
  • 0.00 0.03 0.04 0.03 0.03 0.03
  • 0.03 M o. 01 0.01 12 0. 12
  • o. 0 1 0.05 o. 0 5 o. 04 0.06 0.02
  • o. 02 M 0. 0.3 0.03 13 0.03
  • o. 01 0.04 0.02 0.03 0.03 *
  • 0.03 !1 o. 01 o. 04 14 0.03 (0.35) 0.02 0.02 0.01 0.01 0.03
                                                                             *       (0. 18)         o. 01             ['f         0.01       0.01 15        0.06    0.04       o. 04. 0.04    0.03      0.03     0.01
  • 0.03 0.06 '1 o. 03 0.03 16 0. 11 0.07 0.04 o. 06 0.06 0.04 0:.07
  • 0.05
  • 11 0.04 17 0.07 0.05 0.03 0.02 0.05
  • 0.06
  • M o. 04
  • 18 0. 18 0.15 o. 13 *

(0.18) (c ** 1 5) o. 13 0.08 (0.34) o. 11 (0.21) 11 0. 13 (0. 14) 1<) 0.00 o.oo o.oo 0.00 0.00 o.oo o.oo o.oo. 0.00 o.oo o.oo o.oo 0.00 20 0.00 0.02 0.00 0.01 0.00 ' 0.00 0.00 0.02 0.01 0.01 0.00 0.00 0.01 21 0. 0 1 0.01 0.01 0.01 0.02 0.01 0.00 0.03 o.oo 0.01 o.oo 0.00 0.01 22 O. OJ 0.03 0.01 0.03 0.03 0.02 o.oo 0.01 0.02 0.02 o.o 3 0. 01 0.01 23 o.oo 0.00 o.oo .o.oo 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 24 0.01 0.01 0.01 0.01 0.00 0.00 o.oo 0.03 0.01 0.01 0.02 0.02 0.01 25 M 0.08 0.06 0.07 0.09 0.06 0."05 0.05 0.07 o. 02- 0.02 0.04 0.06 26 M o. 14 0.05 0.07 0.07 0.07 0.09 0.06 0. 13 0.08 0.00 0.08 0.01 27 M 0.08 0.05 0.05 0.06 0.0) 0.06 0.06 0.05 0.05 M 0.04 0.05 28 l1 0.25 o. 16 0.15 0.15 0.13 0.17 o. 16 0.19 0.16 r1 0. 11 0.16 29 M 0.27 o. 13 0. 15

  • 0. 11 0.17 0.10 M o. 14' M 0. 0 <J o. 13 30 M M 0.06 0.07
  • 0.02 0.06 0.05 M o. 06  :'I 0.07 0.05 31 M M 0.00 0.00 (0. 15) 0.03 0.05 0.01 M 0.03 M o.oo 0.00 Tot M M 1. 12 (~.511) (1.35) 1.23 1. 4 7 ( 1
  • 56) M (1.49) M 1. 14 (1.22)
   . - .  . -.         *-~---               ~--
                                                             ~*     ---~'
                                                                               *___)  ...,______,I
                                                                                                   ----   ___ ___,I      \-~---'  '
                                                                                                                                    *~

i - *'----..' J

 -.                                         .,,.. -- ~.

Table 3.2A Palisad~s Network

                                                            .~.
                                                                                                                         .~*----. -
                                                                                                                                    ...- ..   '1 Greatest precipitation received in a given period for January 1977 Station       1-Hour            3-Hour                        6-Houi:-                      12-Houi:-                24-Hour amt. day time    amt. day time             amt. day time                 amt. day time             amt. day time (in.) began         (in.) began                0.11., began                   (in.) began              (in.) began P01A     M       M  M     -M       M   11                M       M     M                 M     M         M     M       M        M P02A     M      M   M       M      M   M                 £1      M     M                M      M         M     M       M        M PO 3 A 0.02    18 0800    0.07   .10 0100            0.09       18 0400           0.12       28 0100         \). 17 P04A                                                                                                                  27 210)

M M M M M M M M M M M M M M M POSA M i1 H M M 11 M M M M M M M M M P06A 0. 02 18 0900 0.05 18 0700 0.09 27 2300 o. 12 8 0400 P07 A 0 .15 9 1600 0.02 10 1600 0.06 26 1300 0.08 6 1700 0.12 28 0100 0.19 P08A 28 2100 M M M M M M M M M . !1 M M M M M P09A M H M M M l1 M M M M M M M M M P10 A M M M M M M M M M M M M M M M P11 A M M M M M M M M M M .M M H M M P12A M M M M M M M M M M M M M M M P13A .M M M M M M l1 M {1 M M M M M M w

( 1 L l_ _

 \ :
90. go* 90* 90" so* hO
  • so. BA~

hZ "I hO" so* go* go* bO" hO

  • so* EO" ~o* so* so* so* hO" LO" 90" 90" 90"
         .II     II   II    R     II   w    II     II     II    II    II       II       II     R     II     II      II      II       ii     II     w   II  II  II   w  Y(ld w      II   II    II    II   w    w      ii     II    II             II       II     W*   hO
  • so* 60" 90* hO" 90. so* so* hO. ED* hO
  • vz 1 a II II II w II II II Ii w II II w w II w II ii II II II II II II II II Ylld II II II II w II w II II w II II R II II II II i II II II II II II YO Id w
  • II II II II II II w ii R II w ii II II II II II ii II II II .. II V60d II w II w II II II w II II II II II II II II ii II II II II w II II II VBOd hh *1 so* go* LO" go* 90" hO
  • so* hO" go* so. so* LO" ftO" 90" LO" 90. go* LD" LO* LO. 01* LO" go. 90* YLOd ftZ"I hO" EO
  • so. so* co* so. hO" zo* so. 50. LO" 90" so* so. go* 9J" 90* 90. 90" LO" 90" so. so* LD" Y90d I II II II II II II II II II II w w II II II II II II II w II II II w YSOd II L II II II II II II II w II II Ii II II II II II i II ii w II II II II A YhOd 01 "I hO" 90. LO" 90. no* zo* hO" hO" so* hO" co* so* 90* ED" 90. BJ" eo* go* co. so* ro* hO
  • hO" £0" VEDd II II II II II Ii II w II A II w w II II II II II i II II w II II II HOd II II II II II II II II II II II II II II w II II 'II i II w II II II YIOd Tt!+OJ. OObZ COE!: OO!:Z OOIZ oooz 0061 0081 OOLI 0 og1 OOSI OOhl OOCI OOZl ODI I 0001 0060 0080 COLO 0090 oo;o ODhO 00£0 oozo 0010 us bu1pua tt?A.la+u1 .:Inoq q::>l!'0 01 pa+l!'tnmn::>:H? (saq::>UT) uo1~:e11d1::ia:1a
                                                -~

L Ll6 ~ A:nmut?r

                                                         ~o;; <~sal  :rnoq   ~::>t?a  u1 pa+-etn11n::>:>t? uo1+t?:i:rd1::>a.:Ia
)(.:IO".'~aN sapl!S'!Tt?d YE *r a1q~1 II v1 I_
  • table J.la Palisade~ Network:

Daily Total Precipitation (Inches) foL

                                                                                                                        ~ebruary 1977 D1\ y      PO 1fl  P02A     P031\   P1)41\   PC 5 A     POGA      P07A     POOA            P091\            1?101\          p 11 A             P12A   P13A 1       0. 00. 0.00     0.00    o.oo     o.oo.       0.00     0. (J 0  0.00            0.00             0. I) 0        0. 0 (I             0.00   0.00 2         M       M      0. 011  0.06     (). c 7     0.06     iJ.07    0.06               M             0.04              1'1
  • 0.06 J M ~ 0. 0 () 0.00 0.00 0.01 0.01 0. 01 '.1 0.00 11 M 0.09 0. 17 0. 13

( 0. 19) 0. 13 0. 17 M

o. 17 r1
  • 0.13 5

d

1 M 0.02 0. 011 0.02 0.05 0.02
                                                                                             .'l 0.02             0.03           0. 0 .3
  • 0.03

{j

            ~       M      0.00    0.03     0. 0 1      0.02     0.01                     0. 011           0.01            0.02                      0.01 7         !1      M      l). 0 1 0. 0 1   0.01        0.03     0. L) 3 (0. 05)          0.01             0. 01           u.01 (0. 16)  0.01 8       0.00    \). 0 0  0.00    0. O*J   0.00       0.00      0.00     0.00            0.00             0.00           o.oo                0.00   0.00 q       0.00    0. 1)0   o.oo    o.oo     0.00        0. 0*1   0.00     (). 0 0         o.oo             0.00           0.00                o.oo   0.00 1 .)       0.00    (). 0 0  0.00    0.00     ')
  • 0 0 o.oo o.oo 0.00 0.00 0.00 0.00 o.oo 0.00 11 (). 0 0 0.00 0.00 o.oo 0.00 0.00 *0.00 0.00 0.00 o. 0 0 0.00 0.00 0.00 12 0.28 J.20 0.20 0.20 0.20 0.20 0. 16 0. 16 0.24 0.23 0.21 0. 16 1 .1 0. 0 3 O.OJ 0. 0 1 O.OJ O.C2 0. 01 0. I) 5 0.01 0.03 0.01 0.01
  • 0. 0 1 11i 0.00 0 ** 0 0 0.00 O.OJ 0.00 o.oo 0.00 0.00 0.00 0.00 0.00
  • 0.00 15 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0. 1) 0 o.oo *

( 0. 23) 0.00 16 0.00 0. ll 0 0.00 0.00 . 0. 00 O.Ou o.uo 0.00 o.oo 0.00 0.00 o.oo o.oo 17 J. 0 0 0.00 0 *. 00 0.00 0.00 0. 0 Q o.oo o.oo 0.00 0.00 0.00 0.00 0.00 18 0. 0 0 J.00 0.00 0.00 0.00 0.00 0. 00* 0.00 0.00 o.oo 0.00 0.00 0.00 1 () 0.00 0.00 0.02 0.01 0.01 0. 01 0.00 0.03 0.01 0. 01 0.02 0. 01 0.01 20 0. 0;) 0.00 0.00 O.OJ 0.00 0.00 o.uo 0.00 0.00 0.00 0.00 0.00 o*. oo 21 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 l). 00 o.oo o.oo 0.00 0.00 0.00 22 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo o.oo o.oo 0.00 0.00 0.00 23 0.07 0. 10 0.08 0.08 0.10 0. 1 J 0. 12 0.09 0.08 0.07

  • 0. 10 2lJ 0. J 7 0.09 0.09 (). 10 O.C6 0.07 (J. J 7
  • 0.07 0.09 0.09 0.07 25 0.00 0. Ou 0.00 0.00 O.Ou 0.00 0.00 (0. Hi) 0.00 o.oo 0.00 (0. 16) o.oo 26 0. 0 *) O.JO o.oo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 27 0. 1 ll (). 12 0.05 0.08 0.06 0. 11 0.06 M 0.05 0. 1 0 0.09 0.06 0.06 2 fl 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0. 0 Ll 0.00 0.00 0.00 o.oo

'[ 0 t. !1 ~ 0. 6 1 0. 81 0.69 (0.8B) 0.73 M M 0.79 M {0.62) 0.65 I-' lJl

Table 3.2B Pali~ades NetwoLk Greatest precipitation received in a given period for I-' O'\ FebruaLy 1977 Station 1-Hour 3-Hour: 6-Hour 12-Hour 2 4-HOU[' amt. day time amt. day time amt. day time amt. day time amt. day time (in.) began Ci n.) began (in.) began (in.) began (in.) began p) 1A M M M M M ti M M M M M M l1 M M P02A M M M M M M l1 M M M M M p*)JA M M M i)

  • 04 12 1500 u. 10 12 150 l) 0.18 12 1400 0. 20 12 121)0 0.21 12 1200 P04A 0.07 12 1500 0. 14 12 140 0 0. 18 12 1400 0. 20 12 1200 Cl. 23 12 1200 POSA 0.08 12 1500 o. 14 12 1500 0.19 12 1400 0.20 12 1200 0.22 12 12 00 Pu 6 A M M M M M M M M M M M M M M M P07A 0. 06 12 1600 o. 12 12 1500 0.13 12 1500 0.16 12 1 500 0.20 12 1500 P08A M M M M M M 11 M M M M M M M M P09A M *M M M ~ M M M* M M M M M M M P10A M M M M 11 M M M M M M M M M M P11A M M M M M M M M M M M l'1 M M M P12A M M M M M M M M M  !"] M M M M M P13A l). 05 12 1600 J. 11 12 150() 0. 15 .12 1300 0. 16 12 1200 0. 17 -12 110'.)
    *~~        ,____ _;
                                             ~
                                                            ~-*         ~      ~    (__j   c__j     ~--j

__ __j ._i

17

    • P01A P02A P03A . 01 M

H H M

              .oo
  • 00 P04A .02 .02 .01
                        .01 M

M

                              .02 .01
  • 0 1 .02
                                     ~     "

M

                                                 ~

M Table 3.JB Palisades Network: Precipitation a~cumulated in each hour (EST) for February 1977 Precipitation (inches) accumulated in each hour interval ending at St* 0100 0200 0300 0400 0!00 0600 0700 0800 09CO 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 Total

                                                               ~
  • 02 .02 .C4 .04
  • OJ .01
                                    .02 .OJ H

a H H H

                                                                        .02 .02
  • OJ .04 .07 .07
  • 06 .05
  • 01 a

H

                                                                                                                      .oo .oo .oo
                                               .OJ
  • c 4 .07
  • 05 .OJ .04 .02 .03 .OB
  • 06 .06
  • 06 .OS
  • OJ .02 .01 .00
                                                                                                                                   .60
  • BO POSA . 01
  • 01
  • 01 .00
  • 0 1
  • 02 . 03 .02 .C4 . 04 . 02 .04
  • 02 .
  • 02
  • 02 .OB .OS .07 .06 .06 .02 .01 .02 .01 .68 P06A a P. ~ ~ r. H  !  ! a  !  !  !  !

P07h . 01 20BA M  !

              .01 H
                   .oo
  • 01 M
                              .02 .02 .01
                                           ~
                                               . 01 H    H
  • 03 .OJ .04 .04 .04 .OJ .il2 .OS
  • 09 .10 .os .04 .04 .02 .02 .02
                                                      ~                                                    !   !   !   !
                                                                                                                                   .73
           "    "    "    " ""       H
                                                 "         "   ~    M    !
                                                                              "       " .03 .11 .07" M    !                          !

t109A P10A P11A H

         .01
           ~    .

M M H

              .oo .00 .o 1 .02 .04
                                           !     H M
                                     " .04 .04 . C6 .07 .os .03
                                                      ~

M H H H H H M M M M M H

                                                                                                         .os
                                                                                                              .02
                                                                                                                  .03
                                                                                                                      .02
  • 01
                                                                                                                               .01
           "
  • DO .DO * "01 .D1""
  • 01 .oo" .01 .c2
  • 01 .OS" .04a .05" .04"
  • 03 .06 .07
  • 07
                     !                                     M                          H     !

P1n H M M H  ! H ~ M M M  !  !  !  !  ! H  !  !  !  !  ! P 1JA .OD

  • OS .02 .03 .02 .02 .oo .64 ave
  • 01
  • 01 .oo .01 .02 .02
  • 02 .02 .C4 .as
  • 04 .OJ .OJ .03 .03 .06 .OB .07
  • OS
                                                                                                              .04 .02 .02
  • 01 .01 .n

I-' CX) Table 3. 1 c PalisadPs Network: Daily Total Precip i. tat ion (Tnchesl foe March 1977 DAY P01A P02t\ P03A PO 4A PO')A P06A P071\ POSA P09A P10A P11 .I.\ P12A p 1 ~ ,\ 1 O.Q!) O.JO 0.00 0.00 1).()0 .). 00 o.oo (). 0 0 0 *.)0 0. 0 :)  :)

  • 00 0. 0 i) *).OJ 2 0.00 0.00 o.oo 0.00 o.oo 0.00 o.oo o.oo o.oo 0.00 0.00 0.00 0.00 3 ()
  • IJ 1 0. 41 0.43 )
  • 3 C) 0.31  !). .39 0.35 0.43 ~* 0.42 0.40 0. 39 1) . 3 8 11 0.46 0.48 0.45 0.53 0. 52 0.52 0.48 0. 118 ( 0. 7 7) 0.50 0.42 0.4g n."so 5 0. !) 0 O.OJ 0. () 0 0.00 J.00 0.00 0.00 0. Ji) 0. 01) 0.00 0.00 0. Qi)  !)
  • 0 0 6 (). 0 0 0.00 0.00 0.00 0.00 o.oo o.oo o.oo 0.00 0.00 0.00 0.00 0.00 7 0. () 0  :). () 0 0.00 ). 0!) 0.00 0.00 Q.00 0.00 0. Ot) 0.00 0.00 '.). 0 :) .)
  • 0) 8 I). 00 0.00 o.oo 0.00 o.oo 0.00 0.00 0.00 0.00 o.oo o.oo 0. 0 () o.oo 9 0. '.) ') 0. 0 i) o.oo 0. *.) 0 *J.00 ).00 0. 'JO ).00 (). 0 0 0.00 0.00 o.oo I)
  • 0 '.)

1 n 0.00 0.00 0.00 o.oo 0.00 o.oo 0.00 0.00 0.00 o.oo 0.00 0.00 o.oo 11 0 . :) :) 0. 00 . 0.00 o.oo 0.00 )

  • 0 i) (). 0 0 O.JO 0.00 C). 0 J O.OJ 0. 0') *). 0 *)

12 0. <) 8 0.60 0. 5 C) 0.57 0. 511 0. '11 0.59 0. 5 C) 0.55 0.62 0.56 0. 56 0. ') 2 11 ,) . J9 (}.')9 0.08 0.08  !)

  • 14 i). 14 '.}. 17 O.OB 0. 10 ).07 *)
  • 11 0. 111  :)
  • 15 14 o.oo o.oo 0.00 0.00 0.00 0.00 (). 0 0 0.00 0.00 0.00 0.00 o.oo 0.00 15  ;). 110 o.oo J.00 0.00 r'). 00 J.00 0. () 0 o.oo 0.00  :)
  • 0 J 0
  • I) 0 0.00 0.00 16 o.oo 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 (). 00 o.oo 17 0. ?. 6 0.23 0.24 0.24 0. 19 ).27 0.22 '). 28 0.2J 0.28 0.27 0.22 I). 22 1fl (). 3 9 0.37 0.32 0.29 0.32 0. 41 0. 4 LI 0.38 0.35 I)
  • 3 LI 0. 38 0.30 0.23 19 r). 0 1 0. !) 2 O.J1 0. *)0 l). 0 1 :). 0 1  !)
  • 0 2 0 * () 1 0.03 0.03 0.01 0.01 '.) * () 1 20 o.~9 0.28 0.23 0.22 0.20 0.26 0.21 0. 2 ') 0. 1 9 0.27 0.26 0.23 (). 1 7 21 0.01 o.oo 0.03 0.02 0. !) 0 ')
  • 0 1 0.00 0.01 0.03 0. 0 1 0.00 0.01 '.). 01 22 0.01 0.04 o.oo 0.02 0.01 0.02 0.02 o.oo 0.00 o.oo 0.01 0. 0] 0.02 71 I). 0 0 0. 0 :) (). J 0 f). 00 o.oo )
  • 0 ') '..). () 0 o. 01) i'J.00 o.oo O.OJ 0.00 o.oo

? 'I 0. () 0 0.00 0.00 o.oo 0.00 o.oo o.oo o.oo o.oo o.oo 0.00 0.00 0.00 25 J.01) 0. ();) o.oo o.oo o.oo J.00 0. 1)0 0.')') O.OJ o.oo 0.00 0.00 f).00 ?6 0. 0 () 0.00 o.oo o..oo o.oo I). 00 0.00 0.00 0~00 o.oo 0.00 o.oo 0.00 27 0. :)CJ 0. 12 0. 13 '). 1 2  ;)

  • 14 t). 1) 0. 12 0. 1 J O.OCJ 0.12 0. 13 0. 12 ()
  • 1 3 0.68 0. 7 3 0.72 0.70 0.72 0.73 0. 6ti 0. 7 IJ 0.70 0. 6 g 0.67 2B 2g 0.72 J.08 0.10 1. 10 } * '.)8
  • 0. 1 IJ 0. 10 0. 14 0. 111 0. I) g o. n

<() I). 1 4 ().00

0. 15 0.00 0.00 o.oo 0.00
  • 0.00 0.00 0.00 0.00 0.00 0.00 11 f). ') 0 0.00 O.OJ 0.00 0.01 ').OD  !). 0 () (L 81)
  • 0.00 0.00 O *.'.)O D.00 f). 0 0 0.02

'l':Jt l. LI 8 )

  • ll 1 3.32 3. ) 1 3. 1 B 1. 4 7 ( J. 4 3) 1.48 (J.05) 3.54 3. 3g 3.36 1. 15
                                                                                                                                       ._}
      **
  • _ _J  ;~;
                                                                                                                                --~-;
 **                                                      .~

Ta'bl e J.2C Palisades Network Greatest precipi~ation received in a given period for March* 1977 Station 1-HOUI:' 3-Hour: 6-Hour 12-Hour 24-Hour amt. day time amt. day ti we amt .. day time amt. day time amt. day time (in.) began {in.) began (in.) began {in. ) began {in.) began P01A 0.25 28 1300 0.42 28 1100 o. 4 7 28 0900 0.58 28 1200 0.85 28 0200 P02A 0. 17 28 1300 0. 40 28 1200 0. 4 7 28 0900 0.55 28 1200 0.84 *3 160J P03A 0.17 28 1200 0.38 28 1200 o.. 4 7 28 0900 0.59 28 1200 0.84 3 1600 PO 4A 0. 22 28 1300 0. /.J4 28 1 lOJ 0.46 28 0900 0.60 28 1200 0.87 3 1600 P05A 0.21 28 1300 0.39 28 1100 0.47 4 1000 0.54 28 1200 0.81 3 160*) P06A 0 .19 28 1200 0.38 28 1100 o. 4 6 ~8 1000 0.53 2 8 0 500 0.87 3 1700 PO 7 A M M M M M M M M M M M M M M M POSA 0.22 28 1300 0.39 28 1200 0.48 28 0900 0.57 28 1200 0.85 28 0200 P09A M M 11 M M M M M C1 M M M M M M P10A 0 ~ 16 4 1100 0.31 28 1200 0.44 28 1000 0.61 28 1200 0.86 28 020') P11A M M M M l1 M M M M M M M M M M P12A 0. 23 28 1300 o. 43 28 1100 0 .4 8 28 10*)0 0.54 28 1200 0.03 3 160;) P1JA 0.15 28 1200 0.36 28 1100 0.43 28 1000 0.50 28 0400 0.85 3 160J

                                                                                                                                                   }

20 P01A P02A P03A

  • 15
  • 16
        .1 5
  • 12
             .11
  • 08
  • 11
                  .10
                  .08
  • 10
  • 10
  • 09
  • 08
                            .06
                                   .09
                                   .OS
  • 06
  • 12
                                        .11
  • 16
                                              .16
                                              .1U
                                                   .22
                                                   .22
                                                   ~22 Table 3.3C ttalisad~s Network:

Precipitation accumulated in each hour (EST)

                                                         .11
                                                         .17
                                                         .16
  • 13
  • 19
  • 14
                                                                   ~arch 1977
                                                                     .15 .2u
  • 20
  • 18
  • 25
  • 28
                                                                               .JU
                                                                               .23
  • 21
                                                                                    .10  .02
                                                                                    .12 .02
                                                                                    .10
  • 01 for Precipit:atioa (inches) accumulated in each hour interval ending at Sta 0100 0200 0300 ouoo 0500 06 00 0700 0800 0900 1000 ~ 1 00 1200 1300 1UOO 1500 1600 1700 1800 1900 2000 2100 2200 2300 2UOO Total
                            .09
  • 15 .03
                                                                                                .02
                                                                                                .01
  • 11
                                                                                                     .10
                                                                                                     .08
                                                                                                          .OU
  • 09
  • 10
                                                                                                               .22
                                                                                                               .15
  • 13
                                                                                                                    .23
                                                                                                                    .30
  • 23
                                                                                                                          .16
                                                                                                                          .21
                                                                                                                          .27
                                                                                                                               .18
                                                                                                                               .12
                                                                                                                               .23
                                                                                                                                    .21
                                                                                                                                    .16
                                                                                                                                    .21 3.46 3.U7 3.32
                                                                                                                                               *l P04A POSA
  • 1q
        *' 9
             .06
             .06
                  .09  .18  .09
                  .07
  • 06 .06
                                   .07
  • 12 . ,,
                                         .~8  .13
  • 13
  • 26
                                                   .17
  • 12
  • iu
                                                              .11
  • 1U
                                                                     .25
  • 25
                                                                          .2U
  • 2U
                                                                               .29
  • 29
                                                                                    .06
  • 10
  • 02
                                                                                         .03
                                                                                                .02
                                                                                                .02
                                                                                                     .OS
                                                                                                     .06
  • 08 .13
                                                                                                          .08
                                                                                                                    .28
  • 12
  • 22
                                                                                                                          .21
                                                                                                                          .22
                                                                                                                               .19
                                                                                                                               .12
  • 20
                                                                                                                                    .20 3.33
3. 1S I
  ?06&  *,6
  • 06 .10
  • 10 .10
  • 10
  • 10 .12
  • 21
  • 17 .1 s .J~
  • 33
  • 1u .07 .07 .os
  • 06 .08
  • 12 .17 .28 .20
  • 19 3.ue I

M7A P08' " " "

  • 17 M.
  • 16 .08
  • 08 " " " "
                            .08    .10   . 13 .1*

M

  • 22 M
  • 12 M
  • 17 M
  • 21 M
  • 21 "
                                                                               .30 M
                                                                                    .12 M
                                                                                         .03      "
                                                                                                .02 M
                                                                                                     .07 M
  • 10 M
  • 1* " " "
  • 27 .23 .16 M'
                                                                                                                                    .19     "

3.U9 P09A P10A

  • 17 M
             .11    "
                  .OR
                  .10 M
  • 08
  • 10
  • 08 .10
                                   .11 M
                                         .10 M
  • 1* " "
  • 20
  • 18 M
  • 12 '
                                                                     .25
  • 21 .18
  • 16 M M
  • 08 . .02 M
                                                                                                     .au
                                                                                                     .10 M
                                                                                                          .11 M
                                                                                                               .16 M
                                                                                                                    .31 M
  • 24 M
  • 21 M
                                                                                                                                    .19     "

3.53 P11A P12!

        .19
  • 10
  • OR
             .07  .13  .07
                            .00
                            .07
  • 10
  • 07 '
                                              .13 M
  • 19 "
  • 18 M
  • 22
  • 27
                                                                          .2R
  • 27
                                                                               .29
                                                                               .3~
                                                                                    .10
                                                                                    .07
                                                                                         .02
                                                                                         .02
  • 02
                                                                                                .01  .08
                                                                                                          .09
                                                                                                          .09
                                                                                                               .11
                                                                                                               .08
                                                                                                                    .33
  • 27'
                                                                                                                          .22
                                                                                                                          .25
  • 13
                                                                                                                               .13
                                                                                                                                    .19
                                                                                                                                    .17 M

3 .37 P13A .17

  • 08 .03
  • 06 .00
  • 06 .11
  • 19 .13
  • 17 .27
  • 27
  • 19
  • 08
  • 04 .01 .07
  • 09 .10
  • 19
  • 28 .18 .17 3.13 ave
  • 16 .09 .09
  • 08 .08 .09 .11 .14
  • 21 .15
  • 16
  • 24
  • 26
  • 25
  • 10 .03 .02 .08
  • 09 .13
  • 26 .23 .17 .19 3. 39
                                                                                                                                                ]
                                                                                                                                               *J I

I I _) I

                                                                                                                                                 .J

r* .* - -* ---- ,

                                                        --            ..~----**~
                                                                                                    -**         r   ----...,_

Table 3 .. 1D Palisades Network: Daily Total Precipitation (Inches) f oi- April 1977 D.l'tY P01A P02A P03A P04A POSA P06A P07A POSA P09A PlOA . p 11A P12A P13A 1 0.00 o.oo 0.00 o.oo 0.00 o.oo o.oo 0.00 0.00 o.. oo 0.00 0.00 0. 00 2 1. 3 1 1.29 1. 33 1.48 l. 27 1. 22 0.77 1. 35 1. 36 1.1'7 1.43 1. 13 0.72 3 o.oo o.oo o.oo o.oo o.oo o.oo 0.00 0.00 0.00 o.oo o.oo o. 00 0.00 4 0.22 0.22 0.23 0.23 0.23 0.25 0.22 0.23 o.. 1 a o.. 21 0.25 0.24 0.19 5 0.05 0.05 0.02 0.03 0.06 0.05 0.10 0;.07 0.07 0 .. 05 0.08 0.02 0.05 f) 0.00 0.00 o.oo o.oo 0.00 o.oo o.oo o.. 00 0.00 0.00 o.oo o.oo 0.00 7 0.06 0.07 O.OB 0 .. 08 o.oa 0.06 0.02 o.. 06 0.06 0.07 0.00 0.06 0.05 A 0.00 o.oo o.oo o.oo 0.00 0.00 0.00 0 .. 00 0.00 o.oo 0."00 o.oo o.oo 9 0.00 0.00 o.oo 0.00 0.00 o.oo 0.00 o.oo o.oo o.oo o.oo 0.00 0.00 10 o.oo o.oo 0 .. 00 o.oo o.oo o. 00 o.oo o.oo o.oo o.oo 0.00 o.oo o. 00 11 0.00 0.00 o.oo o.oo 0.00 o.oo o.oo o.oo 0.00 o.oo o.oo o.oo o. 00 12 0.00 0.00 o.oo 0.00 o.oo o.*oo o.oo 0.00 o.oo 0.00 o.oo 0.00 o.oo 13 0.04 0.01 o. 01 0.03 0.02 0.01 0.02 0.03 0.02 0.01 0.00 o.. 00 o.oo 1 'l 0.00 O'. 00 o.oo o. 00 o.oo 0.00 0.00 0.00 o. 00 o.oo 0.00 o.oo o.oo 15 0.00 0.00 0.00 o.oo o.oo 0.00 0.00 0.00 o.oo o.oo o.oo 0.00 0.00 16 o.oo 0.00 0.00 o.oo o.oo o.oo o.. 01 o. 01 0.01 o. 0 0 o.oo o.oo 0.01 17 0.00 0.00 o.oo 0.00 o.. oo 0.00 O.OQ 0.01 0.01 o. 01 . 0.00 o.oo o.oo 10 o.oo 0.00 o. 00 o.oo o.oo 0.00 0.06 0.00 o.oo o.oo o.oo o.oo o.oo 19 0. OIJ 0.04 0.05 0. OJ. 0.04 0.0) 0.00 0.03 0.05 0.04 o. 05 0.05 0.07 20 0.45 0. '*4 0.40 0.43 0. 6 4 o. 41 0.63 o. 4.5 0.38 o. 39 0.60 o. 11 o. 54 21 0. OIJ 0.04 o. 04 0.04 0.05 0.0] 0.09 0.03 0.04 0.03 o. 0 5 0.04 0.04 22 0.22 0.22 0.20 0.24 0.28 0.34 0.24 o. 22 0.25 0.24 o. 27 0.28 0.24 23 0.02 0.03 0.01 0.02 0.01 . o. 02 0.02 0.02 0.02 0.02 0.03 0.02 0.02 24 0.04 "* 0.02 0.01 0.04 0.01 o. 02 o. 01 o.. os 0.02 o.oo 0.02 0.05 25 0.26

  • O.JO 0.27 0 .. 33 0.25 0.36 Oe33 0.32 0.28 o. 25 o. 30 0.33 26 0.00 (0.33) 0.00 0.00 o.oo o.oo 0.00 o.oo o.oo o.oo 0.02 o.oo 0.01 27 0.05 0 .. 03 0.05 0.05 0.04 0.04 0.03 0.;. 01 0.03 0.03 0.04 o. 06 0.08 28 0.51 0.50 o*. 4 9 0.49 0.44 0.45 0.4 7 0.49 0.45 o. 49 0.49 o.. 49 0.49 29 0.00 0.00 o.oo 0.00 o.oo o.oo o. oo 0.00 0 .. 00 o. oo 0.00 o.. 00 0.00 30 0.00 0.00 o.oo 0.00 o.oo o.oo 0.00 o.oo o.oo 0.00 0.00 0.00 o.oo

'I'ot 3. 31 ( 3. 21) 3.23 3.43 3.53 3.17 3 .. 06 3.35 3.30 3. 3 6 3.64 3.42 2 .. 89 N I-'

Table 3.2D Pali sades Networ:k Gr:eatest precipitation received in a given pe['iod for N N Ap['il 1977 Station 1-Hour: 3-Hour 6-Hour: 12-Uour 2 4-Hour: amt. day time amt. day time aw t. day time amt. day time amt. day time (in.) began (in.) began (in.) began (in.) began (in.) began P01A 0.77 2 1.30 0 0.97 2 1100 o. 98 2 0800 1. 21 2 0200 1. 31 2 0000 PO 2A M M M M M a M 11 M M M M M M M PJJA 0. 55 2 1300 1. 01 2 110 0 1. 02 2 0800 1. 21 2 0 21)0 1. )) 2 0000 P04A 0. 85 2 1.300 1. 15 2 1200 1. 16 2 1200 1.40 2 0200 1.48 2 0000 POSA 0.91 2 1300 0.96 2 110 0 0.96 2 0800 1. 17 2 0200 1. 27 2 OJOO P06A 0.71 2 1300 o. 80 2 1200 o. 81 2 1200 1.06 2 0200 1. 22 2 0000 PJ7A 0.38 20 1900 0. 49 20 18ll i) 0.54 20 1500 0.64 2 0200 0.77 2 01)00 POSA 1.02 2 1]00 1. 04 2 1100 1. 04 2 9800 1.29 2 0200 1.35 2 0000 P09A M M M M M N Ci M M M M M M M M P10A 1.11 2 1300 1. 11 2 1100 1. 1 2 2 0800 1. 40 2 0200 1.47 2 0000 P11A 0. 74 2 1300 1. a 1 2 120 () 1. 01 2 1200 1. 17 2 0200 1. 4 3 2 001):) P12A o. sii 2 1300 0.72 2 12 00 0.73 2 0900 0.90 2 0200 1

  • 13 2 0000 P13A 0.23 20 1900 0.37 20 1700 0.46 20 1500 0.58 2 0200 0.72 2 0000
 **'-**--                   L----.
                                                          *       ,__.      * - * -.l
                                                                                        *_J         ._ _I    __ )
                                                                                                                   ._) _ _ _J

23

-. P02A 8 8 a  ! B* 8  ! 8 8 Table 3.30 Palisades Retvork:

Precipitation accumulated in each boar (EST) for 8 ft April 1977 Precipitation (inches) accuaulated in each hour interYal endinq at Sta 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 1200 1300 HOO 1500 160 0 1700 1BOO 1900 2000 2100 2200 2JOO 2400 Toto.l PO IA .os .10 .16 .17 .1S .24 .20 .13

  • 09
  • OJ .07 .OB .22 .BJ .06 .12 .07 .OS .27 .OQ .OQ .03
  • 02 .06 J.31 8 8 8  ! 8 8 8 8 8 P03A .09 .10 .14
  • 12 .12 .19 .2J .20 .12 .03 .04 .09 .so
  • SB .03 .OB .11 .09
  • 07 .17 .02 .02 .02 .06 J. 22
                                                                                                                   !   !   ll  !       !

P04A

  • 06 .07 .20 .12 .14 .23 .21 .13
  • 10
  • 03
  • 06 .01 .37
  • 93 .OS .16 .07 .11 .11 .10 ... 02 .02 .03 .04 J.42 POSA .11
  • 12 .14 .15 .16 .17 .22 .17
  • 11
  • 03
  • 04 .06 .10
  • 96 .21 .26 .09 .13
  • OS .13 .02 .02 .02 ,06 3. 54 P06A .02 .09 .14
  • 16 .1J .14
  • 14 .lJ .13
  • OS
  • 03 .OB .12 .79 .12 .19
  • OB
  • 1S .14 .19 .06 .04 .02 .OS 3. 1B P07A .06 .10 .13 .21 .OQ .10 .Ji .11
  • 12
  • 04
  • 04 .OB .14 .35
  • 06 .OQ .09 .09 .19 .QS .13 .03 .OJ .10 3.05 POBA .OB .OB .1s
  • 13 .13 .25
  • 19 .17 .10
  • OQ .06 .06 .07 1.0B .OB .OS .01
  • 10 .1B .14
  • OB .02 .01 .02 3 *. )4 P09A .10 .09 .14 .12 .13 '!  ! 8  !,  !  !  !. B ft  ! !I  !  !  !  !  !  !  !  !  !

P101 .os

  • 07 .12 .17
  • IS .1 s .21 .17
  • 14
  • 03
  • 06
  • I 0 .OB 1.16 .OS
  • 06 .10 .07 .13 .17 .06 .02 .02 .02 3. 35 P11A .07
  • 09 .17
  • 11 .14 .JO .19 .17 .17 .02 .07 .07 .19 .B1 .2B .20 .OB .07 .17 .11 .09 .04 .02 .04 3. 64 P121
  • OB .11 .1S .1S .12 .21
  • 24 .13 .1S
  • OQ
  • OS .OB .1s .S7 .22 .09 .44 .09 .12 .08 .OS
  • 02 .OJ .OQ 3. 41 P1JA .OB .14 .17 .13 .12 .10 .16 .20 .16 .06 .OJ .09 .16 .25 .01 .08
  • 08 .10 .15 .29 .06 .04 .04
  • 11 2. as ave
  • 01 .10 .1s .14 .13 ,19 .21 .15
  • 13
  • 04
  • 05 .08 .19
  • 7S
  • 11 .12 .12 ~10 .. n .17 .06 .OJ .02 .06 3 * .JO
                                                                                                                               ~

Table 3. 1 E .Palisades Network: Daily Total Precipitation (Inches) for May 1977 """ DAY PO 1A P02A P03A PD4A POSA P06A P07A P08A P091't P10A P1 H P12A P13A 1 0.00 0.00 0 .. 00 . 0.00 0.00 o.oo 0.00 0.00 o.oo 0.00 0.00 *o. oo o.oo 2 0. 01 0.01 0.01 0.00 0.01 o.oo 0.01 0.02 0.01 0.02 0.01 o. 01 0.02 3 0.00 0.00 0 .. 00 0 .. 00 0.00 o.oo *O. 00 0.00 0.00 0.00 0.00 0.00 0.00 ii 0.03 0.04 0.02 . o. 07 0.06 0 .. 03 0.03 0.04 o. 12 0.04 0.07 0.07 0.03 5 0.35 0 .. 37 0.38 0.40 0.36 0.40 0.51 0.41 0.39 o. J 7 0.43 0.39 0.50 6 0.00 o.oo 0.00 o.. oo 0.00 o.oo o.oo 0.00 o. 00 . 0.00 0.00 0.00 0.00 7 0.02 0.00 0.01 0.02 0 .. 02 0.01 0 .. 00 0.01 0.00 0.01 0.00 0.00 o. 01 8 0.00 0 .. 01 0.01 0.00 0.00 o.oo 0.01 0 .. 01 0.00 0.00 0.01 o. 00 0.01 9 0.00 0~00 o. 00 0.00 o.oo 0.00 0.01 o.oo 0.01 0.00 0 .. 01 0.00 0.00 10 0.00 0.00 0.00 o.oo 0.00 o.oo 0.00 0.00 0.00 o.oo o.oo 0.00 0.00 11 o.oo o.oo o.oo 0.00 0.00 0. 00* 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 12 0.00 o.. 00 . o.oo 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 o.oo 0.00 1J 0. 00 0.00 a.. oo 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 14 0.00 0.00 o.oo 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 o. 00 . 0.00 15 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.. 00 0.00 0 .. OD 0.00 16 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17 0. 11 0.09 0.07 0 .. 05 0.06 0.04 0.00 0. 13 0. 10 0.07 0.05 0.04 0.04 18 o. 00 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0. 0 0 0.00 0.00 0.00 19 o. 00 0.00 0.00 0.00 0.00 0.00 o.. 00 o.oo 0.00 0.00 0.00 0.00 0.00 20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.. 00

  • 0.00 0.00 o.oo 0.05 21 0.01 o.oo 0.08 0.12 0. 11 o.. 00 o.oo 0.00
  • 0.08 0.10 0 .. 1 9 0.01 22 0.01 0.04 0.01 0.04 0.13 0.30 0 .. 12 0.04
  • 0.05 0.04 o. 13 0.27 23 0.00 0.00 0.00 0.00 o.oo o. 00 0.00 0.00
  • 0.00 0.00 0.00 0. 00 24 0.00 0 .. 00 0.00 0.09 0 .. 05 0.05 0.00 0.03 ( 0. 10) 0.02 0.03 0.06 0. 00 25 0.00 0.00 o. 00 0.00 0 .. 00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 26 0.00 0.00 0 .. OD o.oo 0.00 0.00 0.00 0.00 0.00 o.. 00 0.00 0.00 0.00 27 0.00 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 o.oo 0.00 28 0.00 0.00 0.00 0.00 o.oo* o.oo 0.00 o.oo 0.00 o.oo 0.00 0.00 0.00 29 0.06 0.04 0.03 0.01 0.01 0.04 o.oo 0.03 0.03 0.01 0.01 0.00 0.00 JO 0.00 0.00 0.00 0.00 0 .. 00 0.00 o.. 00 0.00 0.00 o.. 00 0.00 o. 00 0.00 31 . 0.87 0.82 o. 81 0.79 0.81 0.60 0.41 0.93 1. 00 0.87 0.70 0.70 0. 16 Tot 1.47 1. 112 1. IJ) 1. 59 1 .. 6 2 1 .. 47 1. 10 1.73 (1. 76) 1. 5 4 1. 4 6 1. 59 1. 10
                                                                        .   ;                                        ._!    ____ _J

Table 3.2E Palisades Network Greatest precipitation received in a given period for

                                                                                    . -- -* ~
                                                                                                            ~
  • Hay 1977 Station 1-Hour 3-Hour 6-Hour 12-Hour 24-Hour-amt. day time amt. day time amt. day time amt. *day time amt. day time (in.) began (in.) began (in.) began (in.) began (in.) began P01A 0.39 31 0500 0.87 31 050 0 0.87 31 0400 0.87 31 2300 0.87 . ]1 2300 P02A M M M 11 M I1 M M M M M M M M M P03A 0.38 31 0600 0.01 31 0500 0.81 31 0500 0.81 31 2300 0.81 31 2300 P'~4A 0.32 31 0500 0.75 31 0 50 0 o. 79 31 0400 0.79 31 2300 0.79 31 2300 POSA 0. JO 31 0600 0.01 31 0500 0.81 31 0400 0.81 31 2300 0.81 31 2300 P06A 0.32 31 0600 o. 59 31 0500. 0.60 31 0500 0.60 31 2300 0.60 31 2300 P07 A 0.35 5 0200 O. l44 5 0000 o. 4 8 5 0000 D. 50 5 0000 0.51 5 0000 POSA 0. 41 31 0600 0.93 31 0 50 0 0.93 31 0400 0.93 31 2300 0.93 31 2300 P09 A M M M M M M M M M M M M M M M P10A 0.36 31 0700 0.79 31 0500 0~87 31 0400 0.87 31 2 300 0.87 31 2300 P11A 0.28 31 0600 0.70 31 0500 0.70 31 0500 0.70 31 2300 0.70 31 2300 P12A 0. 34 31 0600 0.69 31 0500 0.70 31. 050(). 0.70 31 2300 0.70 31 0800 P13A 0.32 5 0200 0.47 5 0100 0.49 5 0000 0.50 5 0000 0.51 4 0500 N

U1

                                                                                                                                           --i 26                                                                                                                                               I sta P01A Table 3.JE Palisades Hetvork:

Precipitation accumulated in each hour (EST) Precipitation {inches) May accu~ulated 1977 for in each hour interval ending at 0100 0200 0300 oqoo osoo 06oo 0100 0500 0900 1000 1100 1200 1300 HOO 1SOO 1600 1700 1800 1900 2000 2100 2200 2300 2qoo

  • oq .17 .11 .02 .01 .q1 .30 .* 20
  • Qq .11 .00 .oo .oo .oo .00 .oo .oo .oo
  • 00 .oo .oo .00 .01 .01
        .oo
  • 06 .1q .13 .02 .39
  • 31 .21
  • oq Total 1.q1
                                                                                                                                         * -]

P02A P03A POU M M M M M M M M

                                                                                                    "    M
  • 03 .07 .27 .oo .00 .1s .39 .29 .OS
  • 06 .oo .oo .oo .00 .oo .oo .00 .oo
  • oq .oq .oo .oo .00 .00 M
        .03 .19 .23 .02 .oq .3S .29 .20 .* 02 .OS
  • 00 .oo .00 .* 00 .oo .oo .oo .03
  • 09 .01
  • 01 .01
  • 01 .01
                                                                                                                  "    M   M   M      M
1. 42
1. 60 POSA P06A
        .OS .16 .16 .oo .oo .37 .38 .2S .02 .OS
  • 00 .oo .DO .oo .* oo .oq .01 .oo .* 07 .01 .01 .01 .01 .o 1
        .oq .16 .21 .01 .01 .33
  • q9 .10 .03
  • OS
  • 01 .oo .oo .00 .00 .00 .00 .oo .oo .00 .oo
  • 01 * .01 .01
1. 61
1. 48 P07A .oq .os .36 .03 .01 .16 .31 .08
  • 02 .01
  • 01 .01 .00 .00 .00 .00 .00 .oo .oo .oo
  • 00
  • 00 .oo .oo 1.10 POSA
  • 03 .06 .28 .07 .oo .26
  • q1 .30
  • 02 .09
  • OS .oo .oo. .oo .oo .oo .oo .oo
  • 08 .oo
  • 00 .oo .01 .oo 1. 73 P09A e. e*
                                                                                                                                      "   *1 P10A P111 M
        .02
        -03 M
  • OS
             .18 M
                  .19
                  .19 M
                       .08
                       .OS
                            .03
                            .01 M
                                  .1s
                                  .22 M
                                       .36
                                       .32
                                            .38
                                            .22 M
  • 09
  • 02 M
                                                       .OS
  • 03 M
  • 03
  • 03 M
                                                                  .00
                                                                  .01 M
                                                                         .QO
                                                                         .oo M
                                                                              .00
                                                                              .oo M
                                                                                   .00
                                                                                   .oo M
                                                                                        .oo
                                                                                        .oo M
                                                                                             .oo
                                                                                             .00
  • 00
                                                                                                  .00 M
  • OS
  • 06 M
                                                                                                            .03
                                                                                                            .OS M
                                                                                                                .01
  • 00
  • 00
                                                                                                                     .oo M
                                                                                                                          .00
                                                                                                                          .oo M
                                                                                                                              .00
                                                                                                                              .02
1. 5q
1. 46 I

P121 P13A

        .00
        .02
             .H
             .08
                  .26
  • 33 .,,
                       .01  .01
                            .06
                                  .32
                                  .31
  • q1
                                       .09
                                            .06
                                            .03
  • o1
  • 01
  • oq
  • 03
  • 00
                                                             .01
                                                                  .00
                                                                   .00
                                                                         .01.
                                                                         .00
                                                                              .01
                                                                              .oo
                                                                                   . 01
                                                                                   .00
  • o1
                                                                                        .oo
                                                                                             .05
                                                                                             .oo
                                                                                                  .oq
                                                                                                  .oo
                                                                                                       .03
  • 00
                                                                                                            .04
                                                                                                            .oo
  • 03
                                                                                                                .00
                                                                                                                     .01
                                                                                                                     .00
                                                                                                                          .00
                                                                                                                          .oo
                                                                                                                              .oo
                                                                                                                              .01
1. S8 1.11 ave .03 .12 .23 .04 .02 .29 .JS .19 .03 .OS .01 .00 .00 .00 .00 .01 .01 .01 .04' .02 .01 .00 .00 .01 1.47 j
                                                                                                                                           -1 j
                                                                                                                                          ]
                                                                                                                                             *1
                                                                                                                                            .J
  • l I

__ _) I J _J

Table 3. 1 F Palisades Netwock: Daily Total PI:'ecipitation (Inches) for June 1.977 DAY PO 1A P02A P03A P04A POSA P06A P07A POSA P09A P10A P11A P12A P13A 1 0.09 0. 10 o. 11 0.12 0.14 0.14 0.16 0. 11 o. 11 o. 11 o. 15 o. 15 0.26 2 0.00 0.00 0.00 o.oo o.oo 0.00 0.00 0.00 o.oo 0.00 0~00 0.00 o.oo 3 o. 00 0.00 o. 00 0.00 0.00 o.oo 0.00 0.00 0.00 o.oo 0.00 o.oo 0.00 4 o. 00 0.00 0.00 0.00 0.00 o.oo 0.00 o.oo o. 00 0.00 0.00 o.oo 0.00 5 1. 02 0.87 o. 83 0.74 0.89 0.66 0.70 o. 92 0.85

  • 0.76 0 .. 66 0.69 6 0.04 0.03 0.04 0.04 0.04 o. 05 . 0 .. 04 o. 06 o. 04 (0. 92) 0.04 o. 06 0.09 7 0.00 o.oo 0.00 0.00 0.00 0.00 o.oo 0.00 o. 00 o.oo o.oo o.oo o.oo 8 0.29 o. 3 c 0.28 o. 30 0.30 0.26 0.28 0. 25 0.25 0.28 0.29 0.28 0.28 9 0.00 0.00 o.oo o.oo o.oo 0.00 0.00 0.00 o.oo o.oo o.oo o. 00 0.00 10 0.02 0.02 0.01 0.01 o.cs 0.04 0.01 o. 04 o. 01 o. 0 0 0.00 o. 01 0.05 11 0.44 0.47 0.46 0.45 0.40 o. 37 0.37 0.44 0.44 o. 51 0.48 0.45 0.46 12 0.02 0.01 0.03 0.02 0.02 o. 02 0.01 o.oo 0.00 0.02 0.00 o. 01 0.00 13 0.00 o.oo o. 00 0.00 o.oo 0.00 0.00 o.oo o. 00 o.oo o.oo 0.00 0.00 14 o.oo o.oo 0.00 0.00 0.00 0.00 o.oo o.oo 0.00 o*. oo 0.00 0.00 o. 00 15 0.00 0.00 0.00 o.oo o.oo 'O. 00 o.oo 0.00 . o. 00 0.00 o.oo o. 00 0.00 16 0.07 0.06 0.06 0.05 0.12 0.05 0.01 0.06 o. 14 0.07 0.06 o. 12
  • 17 1. 30 1.27 1. 12 1. 51 1. 15 0.79 0.93 1. 19 1- 13 1- 50 1. 54 1.08
  • 10 0.05 0.05 0. 19 0.09 0.17 0.12 o.. 11 0.01 o. 11 0. 13 o. 11 o. 17 ( 1. 2 9) 19 0.00 0.00 0.00 0.00 0.00 0.00 o.oo o. oo* o.oo o.oo o.oo o.oo o.oo 20 o.. 00 0.00 o.oo a*~ o.o o.oo 0.00 o.oo 0.00 o. 00 o.oo o.oo 0.00 0.00 21 o. 00 o.oo o.oo 0.00 o.oo 0.00 0.00 o.oo 0.00 o. 0 0 o.oo 0.00 0.00 22 0.00 0.00 o.. oo o.oo 0.00 0 .. 00 0.00 O.QO 0.00 o. 00 o.oo o. 00 0.00 23 0.00 0.00 o.oo o. 00. 0.00 0.00 o.oo 0.00 o.oo o.oo o.oo 0.00 0.00 24 0.08 0.10 o. 10 0 - 11 0.14 o. 15 0.16 0.01 o. 17 o. 19 0. 19 o. 24 0.15 25 0.00
  • 0.02 0.03 0.00 0.08 0.04 0.07 0.04 *' 0.00 o. 04 o. 05 26 0.00
  • o.. 00 o.oo 0.00 0.00 o. . oo o.oo 0.00
  • o.oo 0.00 o.oo 27 0.00
  • o. 00 0.00 0.00 o.oo o.. oo o.oo 0~00
  • o.oo o. 00 0.00 28 o. 12 (0.11) o. 10 0.22 o. 17 o. 21 0.31 0. 14 o. 17 (0.15) 0.22 o.. 35 H 29 0.00 0.00 0.00 0.00 o.oo o. 00 0 .. 00 o. 00 o.oo 0.00 0.00 o.oo M' 30 1. 14 1. 15 1. 11 1.22 1 .. 26 l.22 1. 27 1. 07 0.94 H 1. 30 1. 19 11 Tot 4.60 (4.54) 4.46 4.91 4.85 4.16 4.40 4 .. 43 4.40 M 5. 14 4.81 H

Table 3.2F Palisades Net WOI:" k Greatest precipitation received in a given period .for N 00 June 1977 Stat.ion 1-Hour 3-Hour 6-Hour 12-Hour 211-HOUI:"

        . amt. day time      amt. day time       amt. day time          amt. day time                amt. day time (in.) began         (.in. ) began       (in.) began           (in.) began                   (in.) began p() 1A     M       11  M       M       M     l1     li      M   !1       M        M        M           M       M      M P02A       M       M   M       M        ~    M      M       M   M        M        M        M           M       M      M PJJA      0.47    17 2100    1. 09    17  2100   1. 29    17  2000      1. 31   17 2000              1.31 P04A      o. 73                                                                                               17 200*)

17 2100 1. 32 17 2000 1. 5 7 17 200J 1.58 17 2000 1.59 17 1500 POSA 0.52 17 2200 1. 16 17 2100 1.~9 17 2100 1. 32 1 7 2100 1. 32 PJ6A 0.47 17 2100 17 2200 0.82 30 0900 1. 13 30 0800 1. 21 30 0800 1. 22 30 130;) P07A 0.59 17 2200 1. 00 30 0900 1. 21 .30 0900 1. 27 30 0900 P08A 1.27 30 1400 M M H M M M I1 M M M M M M M M P09A 0.59 17 2200 1.12 17 2100 1.21 17 *2000 1.23 17 2000 1.24 17 1500 P10 A M M M l1 M M M M M M M M M M M P11A o. 7.9 17 2200 1.43 17 2100 1.60 17 2000 1. 63 17 2000 1.65 17 1500 Pl 2A 0.41 17 2200 1.08 17 2100 1. 23 17 2100 1.24 17 2100 1.24 17 2100 P13A M M M M M l1 M M M M M M H M M

,_.                                       L_

___i :____ _j __ ___j .

                                                                                                                ~
                                                                                                                    , *.____ .) '  )

29

  • P01A P02A K

K  ! K K ff Table 3.JP Palisades Network: Precipitation accumulated in each hour (RST) June 1977 for Precipitation (incbes) accumulated in each hour interTal endinq at Sta 0100 0200 0300 0400 0500 0600 0700 OSOO 0900 1000 1100 1200 1300 1400 1SOO 1600 1700 lSOO 1900 2000 2100 2200 2300 2400 a a a .22 .16 .OS .OS

  • 08 .11
  • 07
  • 06 .OS
  • 06 .14
  • 43 .S9
                                                                                          !I  !      !   !    s    !    !   s
                                                                                                                               ~otal
                                                                                                                                   !I P03A
  • 16 .06 .03 .02 .03 .72
  • 42 .10
  • 06 .32 .32 .26 .13 .07
  • 07 .09 .07 .04
  • 07 .OS .06 .47
  • 4S .30 4. 4S P04A .10 .os
  • 03 .o 1 .07
  • 71
  • 29 .OS
  • 04 .47 .30 .2s .22 .07 .OS .OS
  • OS .09
  • OS .OS .26
  • 74 .43 .31 4. 91 .

POSA .16

  • 02 .02 .00 .31
  • 72 .13 .13 .11
  • 43 .31 .23
  • 11 .13 .10
  • OS .08 .10
  • 10 .11
  • 06 .39
  • 78 .2s 4. 86 P06A .15
  • 06 .02 .01 .26
  • 44
  • 21 .11
  • 20 .39
  • 28 .20 .17 .08
  • 06 .06 .06
  • IQ .09 .11 .06 .1s .SS .26 4. 1S P07A .13 .02
  • 02 .02 .34
  • 34
  • 27 .13
  • 02 .39
  • 4S .28 .20 .09 .09 .07 .OS .OS .07 .16
  • 13 *JO .64 .1s 4. 39 POSA  !  !  !  !  !  !  !  ! e  !  !  !  !  !
  • 07 .07 .06 .OS
  • 06 .17 .05 .49 .49 .27  !

P09A .13

  • 02 .01 .01 .37
  • 66
  • 14 .07
  • 20 .24 .24 .16 .14 .09 .07 .05
  • 06 .06 .05 .17 .02 .31
  • 78 .34 4. 41 P10A  !  !  !  !  !  ! e  ! !I  !  ! !I !I  !  !  ! !I  ! !I  !  !  !  !  !  !

P11A .OS

  • 03 .04 .03 .01 .31
  • 62 .17
  • OB
  • 64
  • 33 .24 .14 .07 .09 .08 .10
  • 09
  • 10 .08 .15 .43 .93 .32 s. J 4 P12A
  • 21
  • 04 .03 .01 .42 .36
  • 22 .10
  • 10 .39 .34 .20 .13 .09 .06 .08 .09 .31 .07 .OS .13
  • 44 .
  • 49 .44 4. 81 P13A  !  ! ff  !  !  !  ! e  ! e e  !  !  !  !  !  ! a  !  !  !  !  !  !  !

ave

  • 14
  • 04
  • 03 .01 .23 .S3
  • 29 .11
  • 10
  • 41 .32
                                                                .23  .1s
  • OB
                                                                               .07  .07
  • OS
                                                                                             .10 -
  • 08
                                                                                                        .11
  • 10 ".39
  • 60 .35 4: 61

w 0 Table 3.1G Palisad"es Network: Daily Total Pr-ecipitation (Inches) for July 1977 OA Y PO 1A P02A P03A P04A POSA P06l\ P07l\ P08A P09A P 10A P11A P 12A P13A 1 0.00 0.00 0.00 0.00 0.00 0. 00 OaOO o.oo 0.00 o.oo 0.00 0.00 0.00 2 0.00 0.00 o.oo 0.00 0.00 o.oo o.oo 0.00 0.00 0.00 o.oo 0.00 0.00 0.02 0. 011 0.09 0.07 0.07 0.06 0.01 0.02 3 4 0.08 0.00 (0.05) 0.03

0. l) 0 o.oo 0.00 o.oo o.oo 0.00 0.00 (0.03)
  • 0.00 0.00 M

M 5 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 o.oo o.oo 6 o. 00 0.00 0.00 0.00 0.00 o.oo o.oo 0.00 0.00 0.00 0.00 0.00 0.00 7 0.00 0.00 o.oo 0.00 0.00 o.oo 0.00 o.oo 0.00 0.00 0.00 o.oo 0.00 R 0.00 0.00 0.00 o.oo o.oo o.oo o.oo 0.00 0.00

  • 0.00 0.00 0.00 9 0.00 0.00 o.oo 0.00 0.00 o.oo 0.00 0.00 0.00
  • o.oo 0.00 0.00 10 0.00 0.00 0.00 o.oo 0.00 0.00 o.oo o.oo 0.00
  • 0.00 o.oo 0.00

(). 0 3 0.04 0.07 0.02 0.05 11 12 0.06 0.74 0.06 0.66 0.06 0.56

0. 03 0.39 0.05 0"36 0.59 0.02 0.34 0.05 0.83 0.65

( 0. 0 7) 0. 15 0. 11 0. 12 13 o. 00 0.00 o.oo 0.00 0.00 0.00 0.00 o.oo o.oo o.oo 0.00 0.00 o.oo 14 o.oo o.oo o.oo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo o. 0 () 15 O*. 00 0.00 0.00 o.oo 0.00 0.00 0.00 o.oo o.oo o.. 00 o.oo 0.00 0.00 16 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 o.oo 17 0.74 0.70 0.86 0.91 1. OB 0 .. 56 0 * .36

  • 0.82 O.A9 0.92 o. 82 0.50 18 0.25 0.32 0.23 0.29 0.29 0.25 0.30 ( 1. 1 2) 0.43 O.JO* 0.26 0. 37 0.25 19 o.oo 0.00 o.oo 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 20 0.00 l). 0 0 o.oo 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 o.oo 21 o.oo 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo 22 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 o.oo 0.00 0.00 o.. oo 0.00 0.00 23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 .0.00 24 0.52 0.53 0.55 0.5] 0.54 0.59 0.53 0.47 0.39 0.41 0.46 0.43 0.49 25 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 o.oo 0.00 o.oo 0.00 26 o.oo o.oo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 27 0.00 0.00 o.oo 0.00 o.oo 0.00 0.00 o.oo o.oo o.oo 0.00 0.00 0.00 28 0.00 o.oo 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 2g 0.80 0.82 0.80 0.75 0.70 0.85 0.50 0.72 0.60 0.86 0.78 1.01 0.59 JO 0.00 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 o.oo o.oo 0.00 0.00 0.00 31 0.01 0.01 0.02 0.02 0.02 0.01 0.03 0.01 0.03 0.01 0.01 0.02 0.04 Tot 3. 20 (3. 23) 3. 11 2.94 ). 08 2.97 2. 15 (3.27) 3.02 (2.57) 2.66 2.80 M
**                           L_______ _ l _ _ __
  • _ _i
                                                                                 '--'        _j          ____J

__J

  • Gr~atest Table 3,2G Palisades Network precipitation received in a given period for July 1977 i*

Station 1-Houi: 3-Houc 6-Hour _12-Hour 24-Hour amt. day time amt. day ti we amt. day tiine amt. day time amt. day time (in.) began (in. ) began (in.) began (in.) began P*:> 1 A 0. 74 (in.) began 12 1000 0.79 29 080J l). 8 0 29 0800 0.80 29 0700 P02A 0.80 29 0700 M M M M f! M M M M M M M M M M P03A 0.79 17 0300 o. 86 17 0300 0.86 17 0300 0.86 17 0300 0.86 17 0300 P04A 0.83 17 0300 0.91 17 0200 0.91 17 0200 0.91 17 0200 0.91 17 0200 POSA 0.89 17 0300 1. 08 17 0200 1 .. 0 8 17 0200 1. 08 17 0200 1. 08 17 0200 P:J 6 A .0. 60 29 0900 0.85 29 0800 0.85 29 0800 0.05 29 0700 0.85 29 0700 P07A 0.44 29 0900 0. 50 29 01300 I). 5 3 24 1100 0. 53 24 1100 0.53 24 1100 P08A M M M M M l1 M M M M M M M M M P09A 0.52 12 1000 0.82 17 020J 0.82 17 0100 0.82 17 0100 (). 82 17 O1 OQ P10A M M M M M M M M P11A 0. 76 M M M M l1 M M 17 0200 0.92 17 0200 0.92 17 0100 0.92 17 0100 (). 92 P12A 0.82 17 0100 17 0300 1. 01 29 0800 1.* 01 29 0800 1.01 29 0800 1.01 29 0800 P13A M M M M M M M M M M M M M M M

32 .

                                                                                                                                        *1 Table 3.3G Palisades Retvork:                                                           II Precipitation accumulated in each hour (EST) for                                                  I JUlf 1977 Precipitation (inches) accqnalated in each hour interval endinq at Sta 0100 0200 0300 oqoo osoo 0600 0100 oaoo 0900 1000 1100 1200 1300 1qoo 1soo 1600 1100 1000 1900 2000 2100 2200 2300 2400 Total POU .oo .oo .36 .28 .35
  • 00 .* 00 .oq .71 .10
  • 80 .17 .15 .11 .11 .03
  • 00 .* oo
  • 00 .00 .oo .00 .oo .oo 3.21 iI P02!  ! ft ft ft  !  !  !  !  ! ft  !  !  !  !  !  !

ft POJA .oo .oo .oo .79 .21

  • 10
  • 00 .02 .09 .68 .65
  • 18
  • 19 .15 .06 .01 .oo .oo l!  ! ft  ! ft  ! ft
                                                                                                    .oo .00 .oo .oo .oo .oo 3.13 l

POQA .oo .oo .08 .83 .13 .10 .oo .02 .2q

  • 63 .35 .12 .15
  • 18 .10 .01 .01
  • 00 00
  • 00 .oo .oo .oo .oo 2.95 POSA .oo .00 .13
  • 89 .33 .03 .00 .02
  • 46
  • 29 .32 .25 .12 .15 .07 .02 .oo .00
  • 00 .00 .oo .oo .00 .oo 3.08 P06! .oo .oo .oo .56 .10
  • 16 .oo .01 .21 .61
  • 52 .17
  • 19 ;17 .21 .OS .01 .oo .00 .oo
  • 00
  • 00 .00 .oo 2.97 P07A .oo .oo .00 .36 .oo .30 .oo .03 .06 .45 .27 .10 .19 .19
  • 16 .03 .01 .00 .oo .00
  • 00 .oo .oo .oo 2.16 POSA  !  ! ft  !  ! ft ft l!  !  ! l!  ! ft l! l!  !  !  ! a a  !  !  !  !  !

P09A .00 .oo .52

  • 28 .23 .23
  • 00
  • 03 .43 .22
  • 58 .10 .18 .11 .oa
  • 02
  • 01 .oo .oo .oo
  • 00 ..* 00 .oo .00 3.02 P10l  ! ft  ! ft  !  !  ! ft  !  ! ft  ! ft  ! ft ft ft l! l!  !  !  !  !  ! R P11l .00 00 .76 .14 .07 .21 .01
  • 02
  • 50 .30 .11 .12 .15 .15 .10 .03 .oo
  • 00 .oo .00 .oo
  • 00
  • 00 .oo 2.67 P12A .oo 00 .oo .82 .01
  • 22 .1Q .02 .48 .53 .10 .09 .15 .18 .07 .01 .oo
  • 00 .oo .
  • 00
  • 00 .oo .oo .oo 2.81 P13A ave
        .oo .oo ft
                  .21 ft  ft    !    !    !    !    !    !    !    !    ft   !
  • 55 .16 .15 .02 .02 .35 .Q2 : Q1 .14* .16 .15 .10 .02 .oo .00
                                                                                                   .oo
                                                                                                        .oo
  • 00 ft
                                                                                                                  .oo l!
                                                                                                                      *.oo
                                                                                                                           .oo
2. 89
                                                                                                                                       --]
                                                                                                                                        *1
                                                                                                                                           ,1
           \

Table 3. 1 H Palisades Network: Daily Total

                                                   ** Pr~cipi tat   ion (Inches)    for I

August 1977

                                                                                                           *1*

DAY P01A P02A P03A P04A P05A P06A P07A POSA P09A P10A P11A P12A P13A 1 o.oo 0.00 o.oo .b. 00 o.oo o.oo o.oo 0.00 0.00 o.oo o.oo 0.00 0.00 2 0.00 o.oo o. oo_ 0.01 o.oo 0.00 o.oo 0.00 o.oo 0.00 o.oo 0.00 0.00 3 0.00 o.oo o.oo 0.00 o.oo o.oo 0.00 0.00 o.oo 0.00 o.oo o.oo o.oo 4 0.36 0.35 o. 33 0.39 0.35 0.24 0.16 0.39 o. 54 0.32 0.33 0.27 0.21 5 1.27 1.25 1. 18 0.99 0.90 0.73 0.66 1. 41 1.40 0.89 0.67 o'!' 74 0.49 6 0.06 0.05 0.07 0.04 O.C6. 0.07 0.05 0.05 0.07 0.05 0.05 0.03

  • 7 0.02 0.01 0.01 0.02 0.03 o.oo
  • 0.01 0.01 0.01 o.oo 0.01 o.oo 8 0.56 0.51 0.53 0.40 0.44 0.46
  • 0.53 1.00 0.31 0.36 o. 33 0.43 9 0.09 0.09 0. 10 0.08 o. 08' 0.07
  • 0.08 0.07 0.09 0.09 0.05 0.06 10 0.20 0.23 0.24 0.33 0.30 0.35
  • 0.26 0.24 0.48 0.51 0.49 0.51 11 0.33 0.32 0.28 0.31 0.34 0.34
  • 0.30 0.25 0.32 0.34 0.33 0.32 12 0.00 o.oo o. oo. 0.00 0.00
  • o.oo (1.32) o.oo o.oo o.oo 0.00 o.oo 0.00 13 0. 01, 0.04 O.OJ 0.04 0.02 0.01 0.01 0.03 0.05 0.04 0.03 o. 02 o. 01 14 0.04 0.07 0.03 0.03 0.02 0.04 o.oo 0.08 0.07 o.oo o.oo 0.00 0.00 15 0.00 0.00 o.oo o.oo 0.00 o.oo 0.00 0.00 0.00 o.oo o.oo o. 00 o.oo 16 0.07 0.07 0.06 0.05 0.05 . o. 05 0.02 o.os 0.06 0.06 0.05 0.05 0.03 17 o.oo o.oo o.oo o.oo 0.00 0.00 0.00 o.oo o.oo o.oo 0.00 0.00 0.00 18 o.oo o.oo o.oo o.oo o.oo 0.00 o.oo o.oo 0.00 o.oo o. 00 ' 0.00 o.oo 19 0.00 o.oo o.oo o.oo o. oo. o.oo o.oo o.oo o.oo o.oo o.oo o.oo 0.00.

20 0.00 o.oo o.oo o.oo o.oo o.oo 0.00 o.oo o.oo

  • 0.00 o.oo o.oo 21 0.09 0.08 o. 10 0.09 0. 16 0. 12 0.17 o. 10 0.09
  • o. 10 o. 10 0.07 22 o.oo o.oo o.oo 0.00 o.oo o.oo o.oo o.oo o.oo
  • 0.00 o.oo o.oo 23 o. 13 0. 13 o. 12 0.09 0.10 0.12 0.10 . 0. 13 0.13
  • 0. 11 o. 10 0. 11 24 o.oo o.oo o.oo o.oo o.oo o.oo 0.00 0.00 o.oo ** 0.00 0.00 0.00 25 0.00 o.oo -0. 00 o.oo o.oo 0.00 o.oo o.oo *o. oo
  • o. 00' o.oo o.oo 26 0.24 0.21 0.23 0.23 0.22 0.22 0.29 0.24 0.19
  • 0.22 o. 27 o. 38 21 0.00 o.oo o.oo 0.00 o.oo 0.00 o.oo o.oo o.oo
  • 0.00 0.00 0.00 28 1. 42 1. 40 1. 19 1. 24 1.35 1.27 . 1. 4 5 1. 18 1.24 .1. 37 1. 60 1. 15 29 0.28 0.33 o. 35 0.36 0.45 0.26 0.21 0.44 0.34 (2.01) 0.29 0.32 0.28 30 o.oo 0.00 o.oo 0.00 o.oo 0.00 o.oo o.oo 0.00 o.oo 0.00 0.00 o.oo 31 0. oo. o.oo 0.00 0.00 o.oo o.oo o.oo 0.00 o.oo 0.00 0.00 o. 00 o.oo Tot 5.20 5.14 4.85 4.70 4.87 4.35 ( 4. 3 9) 5.28 5.73 (4.60) 4.52 4.73 4.08

(,,.J w

Table J.2H Palisades Network Gr-ea test precipitation received in a given period for w

                                                                                                                         ,J::>.

August 1977 Station 1-Hour 3-Hour- 6-Hour 12-Hour 24-Hour:- amt. day time amt. day time amt. day time amt. day time amt. day time (in.) began (in.) began (in.) began (in.) began (in.) began P01A 0.75 5 1500 1. 19 5 1400 1. 2 5 5 1400 1.59 28 1500 1. 7 0 28 1500 PJ 2 A i}. 6 5 5 1600 1. 16 5 1400 1. 28 28 1800 1. 61 28 1600 1. 7 3 28 1600 P03A o. 56 5 1500 1. 10 5 1400 1. 17 5 1400 1. 41 28 1600 1. 55 28 16 00 P:l4 A 0. 56 5 1600 0.92 i::

                                               - 1400   1.u4 28 1800     1.44 28 1600            1.59 28 1600 POSA       0.75       5 1600       0.86 28 2200         1. 19 28 1800    1. 68    28 1700        1.80 *20 170'.)

P06A 0.59 28 2200 0.95 28 2000 1. 18 28 1800 1.40 28 1600 1.53 28 1600 P07 A M M M H M M L1 .M M M M M M M M P08A 0.97 5 1600 1.33 5 1400 1.39 5 1400 1. 47 28 1600 1. 64 P09A 4 1800 0.73 5 1600 1. 34 5 1400 1.39 5 1400 1.47 28 1600 1.67 4 1700 P10A M M M M M M M M M M M M M M M P11A 0.51 5 1600 o. 74 28 2100 1. 16 28 1800 1. 48 28 1500 1.66 28 1400 P12A 0.79 28 2200 1. 08 28 2100 1.43 28 1800 1. 7 4 28 1600 1. 9 1 28 1400 P13A 0.47 28 2200 0.87 28 2000 1.07 28 1900 1. 30 28 1600 1.42 28 1600

~-*--
                                                             *                            - - _J                    ---- J

35

  • ~able 3.3H Palisades Network:

Precipitation accumulated in each hour (!S?) for August 1977 Precipitation (inches) accumulated in each hour interval ending at Sta 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 ?otal P01A .11

  • 06 .OS .oa .08 .40
  • 22 .2s
  • 16
  • 01
  • 01 .06 .13 .04 .06 .87 .53 .06
  • 91 .24 .17 .45
  • 18 .09 s. 22 P02A .13 .07
  • 04 .oa .10
  • 31
  • 30 .23
  • 20 .oo
  • 01 .OB
  • 08
  • 05
  • 07 .s1 .76 .09
  • 66 .4S .16 .19
  • 41 .18 5.1S P03A .11 .09 .04 .04 .08 .41 ;29 .24
  • 21 .03 .oo .OS
  • 09 .07 .os .S9 .61 .OS .S1 .44 .23
  • 20
  • 32
  • 11 4. 86 POU .08 .06 .os .04 .16 .20 .36 .28 . io
  • OS
  • 00 .04 .09 .06 .06 .JS .72
  • 11
  • 26 .so .JO .19 .22 .32 4.70 POSA .14 .01 .06 .06 .20
  • 32 .3S .19
  • 18
  • 04
  • 00 .OS .16 .06
  • 07 .09
  • 77 .17
  • 42 .2s .17 .17 .69 .21 4. as P06A .07 .04 .08 .07 .21
  • 28 .J4 .19 .18 .02 .03 .06 .06
  • 10 .07 .24 .S3 .OJ
  • 22 .22
  • 27 .24 .71 .10 4.36 P07A  !  !  !  !  !  !  !  !  !  !  !  ! B  !  !  !  !  !  !  !  !  !  ! B  !

POSA .16 .12

  • OS .oa .11 .43
  • 20 .24
  • 19 .04 .01 .01 .08 .06 .07 .36 1.os .oa .28 .as .19 .22
  • 17 .13 s. 21 P09A .1J .11 .46 .11 .oa
  • so
  • 29 .21 .18
  • 01
  • 01 .os .09 .OS .07 .S9
  • 83 .13
  • 24
  • 73 .22 .19 .JO .20 S.7S P10A  !  !  !  !  !  !  !  !  !  !  !  !  !  !  !  !  !  !  !  !  !  !  !  !  !

P11A .OS

  • 03 .OJ .07 .2J
  • 30 .36 .22 .19
  • 03 .01 .08 .07
  • 03 .09 .22 .62 .02
  • 54 .21
  • 15
  • J9 .49 .12 4. SS P12A
  • 04 .os .02 .04
  • 26 .J6 .30 .10 .22 .04
  • 01 .10
  • 08 .OS .10 .2a .S2 .03
  • 26 .u .13 .17
  • 91 .22 4. 73 P1JA .OS .04 .OJ .03 .22 .JO .40 .19 .1s .OS .02 .OJ .01 .04 .13 .13 .31
  • 06 .JO .24
  • 23 .37 .S6 .10 4.08 ave
        .10 .07
  • 08
                       .06  .16   .JS
  • 31 .21 .19 .03
  • 01 .06 .09 .OS
  • 08 .JS .66 .07
  • 42 .41
  • 20
  • 2S
  • 4S .16 4. 87 1

L-

w 0\ Table 3. 1I Palisades Network: Daily '.rot al Precipitation (Inches) for Sept 1977 D.H P01A P02A P03A. P04A PC5A P06A P07 A. P08A P09A PlOA P11A P12A P13A 1 0.75 0.80 0.85 0.79 1. 00 0.95 0.95 0.83 0.68 0.86 0.84 1. 22 1

  • 21 2 0.28 0.35 0.29 0. 31 0.30 0.24 0.24 0.26 0. 14 0.25 0.28 0.30 0.56 3 o.oo 0.00 0.00 o.oo 0.00 o.uo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4 0.02 0.01 0.01 0. 02 0.01 0.00 0.04 0. 01 o.oii I). 0 0 0.00 o. 01 0.03 5 0.00 0.00 0.00 O.OJ 0.00 0.00 0.00 0.00 o.oo o.oo o.oo 0.00 0.00 6 0.00 o.oo o.oo o.oo 0.00 0.00 0.00 0.00 0.00 0.00 o.oo o. 00 0.00 7 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 n 0.00 0.00 0.00 o.oo o.oo o.oo 0.00 0.00 0.00 o. 00 0.00 o.oo 0.00 9 o.oo 0.00 0.00 o.oo 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o. 00 o.oo o.oo 0.00 o.oo 11 o.oo 0.00 0.00 o.oo 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12 0.35 0.36 0.34 0.33 0.38 0.36 0.29 o.] 5 0.31 0. 3 5' 0.39 0.37 0.37 13 1.45 1. 42 1. 2 9 1. 16 1
  • 16 1. 14 1.23 1. 4 9 1.40 1. 15 1. 17 1. 07 1. 11 1 Li 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 15 0. 119 0.49 0. 5 0 0. L! 5 0.46 0.56 0.60 0.48 0.43 *O. 4 9 0.53 0. 51 0.62 16 0. 10 0.08 0.08 0. 111 o. 17 0. 18 0.04 0.09 0. 12 0. 14 0.17 0. 19 0.03 17 0. 15 0. 15 0. 15 0. 18 0.15 0. 13 0. 15 0. 14 0. 19 0. 18 0. 14 0. 11 0.08 1B 0.33 0.33 o. 3 2 0.33 0.33 0.32 0. 3 1 0.32 0.30 0.) Ll 0.33 0. 33 0. J 1 19 o.oo o.oo 0.01 0.02 0.02 o.oo o.oo 0.00 0.00 0.03 0.07 0. 01 0. Oil 20 o.oo 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0. 00 o.oo 0. 00 0.00 21 o.oo 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 o.oo o.oo 0~00 0. oo. 0.00 0.00 0.00 0.00 0.00 0.00 0.02 22 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 o.oo
  • 23 0.00 0.00 0.00
1. IH~ 1
  • 51! 1. 5 8 1. 8 7 1. 15 1.52 1. 56 1.45 1. 36 1. 62 24 1. 66 1.60
0. 15 0.12 0. 16 0. 14 0. 14 25 26
0. 16 0.01
0. 15
o. 0 1
0. 10
o. 01
0. 12
0. 01
0. 15 0.00
0. 12 0.01
0. 18 0.06 0.01 o.oo 0.02 0.01 0.00

( 1. 99) 27 0.00 o.oo 0.00

  • 0.00 o.oo 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 o.oo 0.00

-2 8 0.00 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 o.oo o.oo o.oo o.oo 2S 0.00 0.00 0.00 0.02 0.02 0.00 o.oo O.OJ 0.00 0.04 0.01 0. 04 0.03 30 0.27 0.27 0.23 0.21 0.25 0. 3 1 0.37 0.34 0. 18 0.24 0.28 0.32 0.36 Tot. 6.02 6.02 5.64 5.63 5.98 6. 19 5. 6 1 6.02 s. in 5. 70 . 5.72 6.26 {6.74)

     -*              \...--:::..---          *-----

I L ___ _f.: _. __ J _ _ _J ___ j

Table 3.2I Palisades Ne twor- k Greatest pr-ecipita tion received in a given period for Sept. 1977 Station* 1-Hour 3-Hour 6-Hour 12-Hour 2 4-Hour-amt. day time amt. day time amt. day time amt. day time amt. day time {in.) began (in.) began (in.) began (in.) began (in.) began PO 1A 0. 55 24 0400 1.47 2 Lf 0400 1. 60 24 0100 . 1. 66 23 2200 1.80 12 1600 P02A 0.45 24 0600 1.31 24 0400 1.45 24 0100 1.60 23 2200 1. 77 12 1600 PO 3A 0.43 24 0500 1. 18 24 0400 1. 31 24 0100 1. 46 2.3 2200 1. 6 3 12 1600 P04A 0.37 24 0600 1. 12 2Q 0400 1.42 24 0100 1.54 23 2200 1.54 23 2200 POSA 0.39 24 0500 1.18 24 0400 1.50 24 0100 1.58 23 2200 1.58 23 2200 P06A 0. 42 24 0500 1. 18 24 0500 1. 70 24 0200 1.87 23 2200 1.87 23 2200 P07A 0.54 24 0600 0.92 24 0400 1. lll 24 0100 1. 18 13 0100 1.52 12 1600 PJ8A 0. 40 24 0600 1.02 24 0400 1. 32 24 0100 1. 52 24 0100 1. 84 12 1700 P09A 0.42 24 0500 1. 25 24 0400 1. 40 24 0100 1.56 23 2200 1. 71 *12 no;J P10A 0. 53 24 0400 1. 11 . 24 0300 1. 37 24 0000 *1. 45 24 0000 1.50 12 1600 P 11A 0.45 24 0500 1.09 24 0400 1.28 24 0100 1. 36 24 0000 1.56 12 1600 P12A 0.44 24 0500 1.30 24 0400 1.53 24 0'100 1.62 23 2200 1.62 23 2200 P13A 11 M M M M M M M M M M M M M M w

                                                                                                                -..J

38 Table 3.3I Palisades Network: Precipitation accumulated in each b.oar (EST) Sept. 1977 foe

                                                                                                                                      --*-r
                                                                                                                                            \

Precipitation (inches) accumulated in each hoar interval ending at Sta 0100 0200 0300 0400 0500 0600 0700 0800 09CO 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 Total POU .16 .31

  • 31 .53 1.0B
  • 72
  • 45
  • 03 .C4 .14 .38 .46 .27 .1 B .02 .04 .08 .10 .17 .04 .13 .11 .12 .19 6.04 P02A .10 .39 .30 .33
  • 90
  • 77
  • 59
  • 14 .cs
  • 08 .32 .4S .38 .14 .OS .03 .OS
  • 06 .13 .1s
  • 08 .17
  • 18 .16 6. 02 P03A
  • 1S
  • 36 .32 .44
  • 71 .70
  • 54 .11 .C4 .11 .J1 .42 .J2 .1s
  • 06 .02 .04
  • 10
  • 21
  • 06 .07 .1s .16
  • 10 5.65 P04A .20 .36 .17 .so .82 .67
  • 46 .06 .as
  • 10 .20 .61 .27 .13 .02 .02 .06 .09 .26 .07 .10 .lJ .18
  • 09 S.63 POSA
  • 19 .29 .25 .60 .as .68 .46 .08 .04 .10 .27 .46 .2B .13
  • 03 .02 .04 .19 .29 .10
  • 11 .17 .19 .15 s. 98 P06A .17
  • 31 .37 .22 .82
  • 72 .62 .39
  • 04 .06 .16 .41
  • 42
  • 15 .os .03 .02 .OB .29 .24 .10 .17 .19 .15 6. 19 P07A .07 .15 .39 .38 .72 .51
  • 65
  • C7 .CB .08
  • 23 .37 .44
  • 20
  • 03 .06 .oo .OS
  • 33 .06 .09 .17
  • 20 .29 s. 64 POBA .OB .56 .29 .41 .73 .66
  • 56 .25 .C4 .09 .20 .57
  • 36 .12 .02 .01 .03 .06
  • 17 .14
  • OB
  • 22
  • 16
  • 23 6.05 P09A .19
  • 30 .23 .3S 1. 04 .62
  • SS .12 .C6 .OB .21 .so .23 .13
  • 04 .01 .02 .09 .18 .06 .* 02
  • 14 .19. .11 S.4B P10A .21
  • 23 .22 .49
  • 98 .76 .22 .o 8
  • 09
  • 10
  • 23 .49 .31 .14
  • 03 .02 .02 .07
  • 24 .14 .04 .19
  • 2S .15 . s. 70 "\\

P11A .23 .17 .24 .S4 .89 .69 *JO .os

  • cs
  • 08 .21 .57 .29 .17
  • OS .01 .OS .00
  • 37 .05
  • 09 .19 .19 .15 s. 72 I P12A .25 .16 .23 .60 .95 .71
  • 51 .03
  • 05 .11
  • 31 .53 .19 .15
  • 01 I
                                                                                     .01 .03 .19
  • 3B .15
  • 10 .24
  • 22 .14 6.26 ... }

P13A e e B B B B e B e e B e e B B e B B B B B B B ave .17 .30 .2B .45 .B7

  • 6B
  • 49 .12
  • cs
  • 09 .25 .49 .31 .15
  • 03
  • 02 .04
  • 10 .25 .10 .00 .17 .19 .16 S.B6
                                                                                                                                      /1
                                                                                                                                          ,.)

j

                                                                                                                                          \.
   ~.                   '
                                 ". c-     -'   -- .

Table 3.1J Palisades Network: Daily Total Precipitation (Inches)

                                                                               ~

for 1 ---- -*--* October 1977

                                                                                                                                                                                \
  • DAY PO 1 A Pu2A P03A P04A POSA 1?06A P07A POSA P09A P10A 1?11A* P12A P13A 1 0.52 u.51 0. 0.54. 0.52 0.48 0.47 .o. 53 - -0.52 .. o. 53 . o. 52 0.54 0.52 2 .o. 00 o.oo o.oo .o .* 00 0.00 0. o.o o.oo o.oo o.oo 0 *.oo o.oo 0. 00 . 0.00 J o.oo 0.00 . o. 00 o.oo 0.00 0.00 o.oo o.oo o.oo O.QO. .o. oo. o.oo 0.00 4 o. 00 .. o.oo o.oo o *. oo 0.00 o.oo Q.* 00 0.00 o.oo o.oo o.oo 0. 00. o.oo 5 0.02 . 0. 0 .1 . o. 04- . 0.04 0.03 0.01 0. 00 .. 0.03 0.03 0. 01 0.01 o.oo o.oo
6. *-* .o.oo - . o.oo o.oo . 0. 00 . o.oo .o.oo o.oo o .* oo o.oo .. o .* oo o.oo o.oo o.oo 7 0.35 (1 .* 33 0.32 o.J2. .. 0. 31 0.3LJ 0.27 0.30 0.28* -0~34- 0.35 0.33 0.30 8 0 *. 12. - . 0.16 0. 11 o. 14 0. 14 . 0.18 0 *.10 o. 17 0. 15 . 0. 14. 0.14 0.14 0.22 9 o. 00 . o.oo o.oo o.oo 0.01 0. ()1 0.04 0.01 0.01 0.01 0.01 0.01 0.02 10 0 *. 06 O. OJ. o. 03- 0.06 0. 04 . 0.04 0.02 0.06 o. 04* 0.04 0.06 0.03 0.05*

11 0.21 o.~1 0.20 9.21 0. 21 0.19 0.21.: 0.20. 0.21 0 .2.1 0.22 0. 20 0.17 12 o. oo. o.oo o.oo .o*.o.o 0. 00 . o.oo o.oo. o.oo o.oo o.oo o.oo o.oo 0.00 13 .. o.oo . o.oo 0.00 0.00 .. o.oo . 0. 00 .. 0.00 o.oo o.oo o.oo . o. 00 o.oo 0.00 14 0.00 o.oo. o. oo .. o... 00. 0.00 -* o. oo. o.oo I 0 o 00 o.oo o.oo o.oo o.oo 0.00 15 o.oo o.* o 1 0.02 o. 02 . o.oo o.oo o.oo 0.01 0.01 0.01 0.01 0~01 0.01 16 . 0.17 . 0 *. :) 4 0.14 o. 11 0.03 0.01 0.01 0.10 o. 02* 0. 11 0 .. 09 o .. os. o.oo 17 0.00 . o *.o.o 0.00 o.oo. o.oo o.oo o.oo o.oo O.QO. o.oo o.oo o.oo o.oo 18 o. -15 .. o. 16. . 0. 16 0.20 0 .32 *- 0.32 .0.21 .. 0.26 0.22 o* ... 16 0.14 0.17 0.21 19 -* 0. -10 o.~ 11 .. o. 10 o. 10 .. 0.06' . 0. 01 0. 00 . 0.08 0.05 0.09 0.09 0.05 0.04 20 0 *. oo 0. oo. - o. 00 ,0. 00 . o.oo o. oo .. o.oo 0.00 o.oo o.oo o. 00 . o.oo "0.00 21 .o *. oo o.* 00 o.ou .o.oo .o.oo o.oo o.oo o.oo 0.00 o.oo o .. oo o.oo o.oo

22. o.* 12 0.1~- 0 .13 .. 0. l l 0. 11 0. 14 0. 12 . 0.19 0.19- 0.10 0.08 0.06 0.04 23 o .* 00 .o. 00 0. oo. ,..0.00 ... 0.00 o.oo 0.00 o.oo 0.00 0. oo . o.oo 0.00 o.oo 24 .. o. oo. o.oo . 0 .00 o.oo o.oo o.oo o.oo 0.00 0.00 0.00: o.oo 0.00 0.00*
lS 0. 14 0.13 0. 15 0. 0. 15 . 0. 11 0.08 0 .14 0 .-14' 0 *.1s 0. 13 0.12 0. 11 26 o.oo o.oo o.oo. o. o.o o.oo 0.00 o.oo. 0.00 o.oo o. 00' o.oo 0.00 0.00 27- .o.oo . u. 00 0. oo. o.oo o.oo o.oo o.oo 0 .00 o.oo o.oo o.oo. 0.00.,0.00 28 0.00 0.00 o.oo o.oo .o. 00 o.oo o.oo 0.00 o.oo o.oo 0.00 0.00 o.oo 2-9 ..... o.oo . o .* oo . 0. o.o. o.oo o.oo o.oo o.oo o.oo 0.00 0. 00 . 0.00 o.oo 0.00 30 o.oo o.oo o. 00 .... 0.00 . 0. 00 o.oo o.* 00 0 .oo . o.oo o.oo. 0.00 0.00 0.00*

31 o. 17 . o. 18 . 0. 16- o.* 16 0.21 0.20 0. 16 0.18 0 .17 0. -16 0. 20 0. 21 0.16

                                                           .     .  ----     ----      -     .                            . .         --.~~

Tot 2 *. 13 . .2. 10 2.01 2. l7 2 .14 2.04 l.03 2.26 2.04 2.06 2.05 1. 92 1. 85 w

                                                                                                                                                                                         ~

Table 3.2J Palisades Network Greatest precipitation received in a given period for ""' 0 October 1977 Station 1-Hour 3-Hour 6-Hour 12-Hour 2 4-Hour amt~ day time amt. day tillle amt *. d~y time amt. day time amt. day time (in.) began (i~.) began (in.). began (in.) began (in.) began P~) 1A 0.25 1 0000 o. 45 1 ouu0 iJ. 49 1 0000 0.52 1 0000 0.52 1 *):) 00 P02A 0.21 1 0000 o. 43 1 0000 o. 48 1 0000 0.51 1 0000 0.51 1 0000 PO 3 A 0. 19 1 0100 0.45 1 0000 0.48 . 1 0000 0.51 1 0000 0.51 1 0000 P04A 0. 18 1 0100 i). 49 1 0000 0.52 1 0000 0.54 1 0000 0.54 1 OJOO POSA 0.18 1 0100 0.47 1 0000 o.so 1 0000 0.52 1 0000 0.52 1 0000 P')6A 0. 16 1 0100 0.41 1 0000 0.42 1 0000 0.52 7 1800 0.52 7 1800 P07A 0.16 1 0100 0.30 1 0000 o. 41 1 0000 0.47 1 0000 0.47 1 0000 POO A . M M M* M M H M M M M M M M M M P09A 0 .17 1 0100 0.45 1 JOOJ o. 4 8 1 0000 0.52 1 0000 0.52 1 OJOO P10A 0.18 1 0100 o. 49 1 0000 0.51 1 0000 0.53 1 0000 0.53 1 0000 P 11 A 0. 18 1 0100 0.45 1 OOOu 0.48 1 0000 0.52 1 0000 0.52 1 0000 P12A 0. 18 1 0100 0. q4 1 0000 0.48 1 0000 0.54 1 0000 0.54 1 0'100 P13A 0. 18 1 0100 O.!O 1 0000 0.4<:} 1 0000 0.52 1 0000 0.52 1 0000 L.--- *-- .* ---- - --*

                                                                       ..     ~__.;   '--.-_.:..*
                                                                                                                     *-~

41* sta alaa Ta~le 3.3J Palisades Hetvork: Precipitation accnaulated in each bonr (gST) for OCtober .1977 Precipitation (inc bes) accumulated in each hour. interval endin9 at a2aa a3aa a4oo.osoo a6oo 01oa .a8oo.a9oo 1000 1100. 1200 1300 .1400 1500 *1600 1100 1800 1900 2000 2100 2200 2300 2400 Total I* ) P01A. .30 *.23 ,.a4 .13 .. p .* 10. .04 .*.06 . *.10 .15 .09 .OJ. .* 01. .04 .01 ' .* oo .a2

  • 05 .09 ..* 09
  • 11 .11 .12
  • as . 2.13 P02A POJ&
               .29
               .21
                     .23- .04. .111. .14. .10 .04 . ~
  • l l
  • 14 .
  • a6 .01 .oo .06 .02 .oo .02 .06 .10 .10 .** 10 .11 ..* oa .09 2. \0
                     .22 .1.1. * \3 .11 .12
  • 01 . .* os .as .16 .09 .0.2 .00 .04
  • 02 .* oo .02
  • 10
  • 1a .09 .12 .OS .OS .06 2.06 Pa4& .24 .22 .* IQ .1J .12 *. 1.1. .03 .OJ .12 .
  • 16 .os .03 .oo .OS
  • OJ. .oo *.02 .07 .10 . .07 .14 .09 .10 .a9 2.16 POSl
  • 24
  • 23 .
  • 12 .a9 .11. .12 ..06 .03 .* a9 *. 10 .o.s
  • as.
  • a2. .os .06 .a1 .* Q3 .09 .11 .os .14 .a6 .06 .os . 2. 13 P06l .1s .20 -*15 .14 .12 .09...*.06 * .05 .OJ .07 .OS .04 .OJ .01 .OS .03 .a2 .a6 .11 .09
  • 1S .0'6 .a6 .a9 2.as P07&.
  • 20 ..J9 .10 .13 . .17 . l l ~ aq. .a4 .02 .03 *. 04 .04 .01 .a3 .OJ. .OJ. .oo * .as .* 12 .10 .u .10 .06 .a6 1. 82 POSA ll . .!I .e ll .!I -ll ll. .a ll ll  ! ..a ll *ll *ll !I., ll ll ll ll ll *ll ll  !*  !

P09A .1S

  • 22 *. 16 .14 .1s *.10 .os .a6 .06 .10 .06 .* Qq.
  • a 1 .03 .as .02 .02 .as .* 09 .aa
  • 1J .07 .06 .os 2.os P10A .22 .23 .* r6 ..*.1a * .13 *. oa
  • 03 ,.os .09 .12 .os .OJ. .o 1 .03 .a2 ..oo .02 .as .10 *.12 .13* .09 .as . .09 2.a6*

P.11.\.

  • 21
  • 24.
  • 1a .a7 .11
  • 10 .04 .as .01. .14 .* a7 .04 .01 .a2 .a2 .oa
  • al .as .10 .01 .12 .09 .12 .1s .i.a6 P.121 .24 .21 .1a. .1a .11 .*.1 a .as .* as .a6 .10 .07 .a2
  • a 1 .04 .01 .ao .03 .06 .09 .* 10 ..* 12 .09 *. 10 .06 1.92 PllA. .2a *.21 .11 .12 ..* Q9 .as. .04 ** ___as.,._ ,_,.._
                                                                          .os.
  • a1 .* os .OJ. .oo .03 .011- .oo .* 02
  • a6 .10 .10 .14 .a6. .-07 .as 1.ss
  • 11 ne .23
                     -.--   "':"-- . *-"""~- -..-- --~. --.--                    --- --- --- --- -- --- --- --- --- --- --- --- --- --- --- ---
                     .22 *.12. *.12..* 13 .
  • lll .* as *.05 .07 .11 .07
  • 03 .a1 .a4 .a3 .a1 .a2 .06 .1a .* a9 .13 .* as .
  • as .OS* 2.a3

N for November 1977 Table 3. 1K Palisades Network: Daily Total Precipitation (Inches) DAY P01 A P02 A P03A POIJA POSA P06A P07A

  • POSA P09A P 1'.) A P11A P12A p 1 3 i\

1 0. 4 6 0.42 0.49 0.45 0.30 0.28 0.44 0, LJ 6 0.50 0.37 0.32 0.45 0.02 o.oo o.oo 0.02 O.OQ 0.00 0. 1

  • o.oo 0.0) OJ o.oo 0.02 2

3 0.02 0.02 0.03 0.01 o.oo 0.00 l) 0.01

  • o.oo 0.02 1).

0.00 0.00 0.00 4 0.00 o.oo o.oo 0. OJ o.oo J. 1) 0 0.00

  • O.OJ 0. 0 '.) 0.0) J. 10 0. Jfj
 ,-J   0.00    o.oo            o.oo    0.00  0.00     0.00      o.oo
  • o.oo o.oo 0.00 o.oo 0.00 6 0. 00 o.oo 0.00 0.00 o.oo 0.00
  • O.OJ 0. *) J :_},QJ *,). 00 0. -')()

7 0.05

0. 0 ()

0.02 0.03 0.02 0.02 0.02 0.01 * (0. 5 0) 0.02 0.02 o.* 02 0.04 0.02 8 ~). 00 0. I) 0 J.00 0. 00 o.oo o.oo 0. i) 0 o.oo o.oo O.JO o.oo o.oo 0. 00 9 0. 14 0.14 o. 17 0.17 0. 13 0.12 0. 13 0 ** 1 9 0.15 0.15 o. 13 0. 11 0. i 1 10 o. 17 0. 19 0. 10 0. 18 0.21 0.22 0.22 0. 14 0.21 0. 16  ;) . 18 0. 17 0. 13 11 0.23 0.22 0. 17 0. 19 0.20 0.20 0.28 0. 1 7 0.17 0. 2 0 0.22 0.20 0. 16 12 )

  • 11 0. 10 0.13 0. 11 f). 15 0.07 0. 15 0. 12 . 0. 11 0. 10 0. 10 0.00
0. 12 o.oo 0.00 o.oo o.oo o.oo 0.00 o.oo
  • o.oo 0.00 o.oo 0.00 13 J.00 o.oo o.oo 0.00 o.oo o.oo o.oo o.oo
  • O.OJ O.Ou O. JO O.OJ 14 15 0.07 0.06 0.09 0.08 0. 13 0 .*i 2 0.26 0.09 (0.09) 0. 1 0 0.1Q 0. 14 0. 18 16 o.oo o.oo o.oo 0.00 i). 00 0.00 0.00 o.oo 0.00 o. o*o 0.0J 0.00 0. 0()

17 0.08 0.08 0.13 0.10 0.10 0.07 0.10 0.09 0.10 0. 11 0. 12 18

  • 0.04

( 0. 0 8) 0.04 J.04 0. :)2 0.03 0.02 0.03 0. 0 4 ~). 0 3 1.05 J.01 19

  • 0.19 0. 19 0.21 0.20 0.19 0.18 0. 19 0.18 0. 2 0 0.25 0.23 0. 16 20

(')~ 63) 0.27 0.36 0.31 0.29 0.32 0.26 0.36 0.27 0.31 0.28 0.39 0.32 21 o.oo o.oo 0.00 o.oo 0.00 o.oo o.oo o.oo o.oo 0.00 0.00 0.00 o.oo 22 0. 00 0.00 o.oo o.oo o.oo o.oo o.oo o.oo 0.0) o.oo 0. 0;) o.oo 0. 0'.) 23 0. 15 0. 1 5 0. 13 0.13 0. 13 0.13 0.06 0. 13 0.12 0. 1 Ll 0.14 0. 1 4 0. 11 2'* o.oo o.oo o.oo 0.00 o.oo 0. oo o.oo o.oo 0. 01) 0. () 0 o.oo o.oo  :)

  • 0 ;)

25 0.72 0.68 0.56 0.56 0.51 0.48 0.23 0.65 0, Ll 6 0.65 0.65 0.48 0. 4 3 26 0.09 0. 11 0. 0 ll 0.08 u.04 0. 10 0. 16 '.). 0 4 0.06 0 * !) h 0.05 i),()8 0. 11 27 0.23 o. 2 4 o. 16 0.17 0. 11 0.21 0. 11 0.24 O.OH 0. 2 5 0.21 0. 19 0. 13 28 0.00 o.oo o.oo 0.00 o.oo o.oo o.oo 0. Qi) o.oo o.oo 0. 0')  :)

  • 00 o.oo 29 0.00 o.oo . 0. 00 0.00 0.00 o.oo 0.00 o.oo 0.00 0.00 0.00 0.00 o.oo 30 0.35 M 0.35 0.35 u.35 0.36 0.28 0.36 M 0.36 0.35 0.33 0. 32 Tot ( 3. 4 J) M ( 2. 9 8) 3.22 3.05 3.D4 2.68 (3.3:)) M ) *33 3.32 3. 13 2.75
                       !...--~*

_...--::::-...... ~-*

                                                                                                                                                      *--...!    --~J I

_J

  *                                                  ~- .        .         '.                             ---
         '                                t Table 3.2K Palisades Net WOI:- k Greatest precipitation received in a given period for November 1977 Sta. tion           1-Hour               3-Hour                 6-Hour              12-Hour          24-Hour:-

amt. day time amt. day time amt. day time amt. day time amt. day time (in.) beqan (in.) began (in.) began (in.) began (in.) began Pu1A M M M M ~ M M M M M M M M M M P02A M M M M N M M M M M I1 M M M M P) 3A M M M M M 11 L'1 M M M M M I1 M M P04A 0.25 1 1400 0.34 1 1300 0.41 1 11'00 0.49 1 1300 0.63 25 0300 POSA i)

  • 14 1 1400 (). 2 5 JO 2100 o. 3 3 30 1800 0.45 1 1100 0.55 25 0300 P06A 0. 16 20 0600 0.26 30 2100 0.36 30 1.800 0.38 19 2000 iL 58 25 0400 P07A 0.13 30 2300 0.25 15 0700 o. 28 30 1800 o. 32 . 19 1900 0.40 1 9 1500 POSA H M M M M M M M M M M M M M M P09A M M M M H M M M M M M M M M M P 10A 0.20 1 1400 0.32 1 1300 0.34 JO 1800 0.46 1 1300 0.10 25 J30J P11A 0.22 1 1400 0.31 1 1400 0.38 1 1400 0.50 1 1300 0.70 25 0300 P12A 0.12 19 2200 o. 25 30 2100 0.32 30 1800 0.43 19 1900 0.58 19 1400 P.13A 0. 11 30 2300 0.23 30 2100 0.31 30 1800 0. 32 1 1000 0.54 25 0300

44 9! Table 3. 3K Palisades Network: -1 Precipitation accu~ulated in each hour (EST) for \ Noveaber 1977 Precipitation (inches) accumulated in each hour interTal ending at Sta 0100 0200 0300 0400 0500 0600 0700 0800 090 0 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 Total PO.U

  -P02.l P03.l
           !I I!

I!

                !I l!

I!

                      !I I!

I! I! l! I! I! I!

                                      !I I!

I!

                                           !I I!

I!

                                               !I
                                               !I a
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l! I! I!

                                                                !I
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I!

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I!

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                                                                                           !I ll I!

I! I! I! I! I!

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                                                                                                                                           .. l!
                                                                                                                                                    --1

(

  .PO.JI& .11
  • 03 .02 .04 .13 .16
  • 25 .11 .14 .10 .09 .04 .07 .07 .36 .1B
  • 10
  • 13
  • 08
  • 18 .21 ,*19 .21 . .21 J. ~J I POSl .os
  • 03 .oo .06 .14 .04 .28 .11 .15 .18 .06 .oa .07
  • 07 .2s .19 .09 .09 .12 .14 .22 .18 .21 .23 3. 04 P06A .13
  • 09 .os .04 .11 .OB .26 .15 .10 .13 .13 .07 .07 .09 .16
  • 22 .12
  • 13
  • 08 .13 .13
  • 18 .20 .18 J.03 P07.l .06 .09 .07 .OS .13 .OB .17 .11 .17 .1S
  • 04 .OS *.OS .17 .13 .10 .08
  • 06 .09 .16 .26 .07 .17 .18 2. 68 POSA !I ll I! !I !I I! ll !I I! I! I! I! I! !I !I B !I !I !I !I I! I! a I! !I -1 P09& I! I! I! I! !I !I I! !I I! I! I! !I I! !I !I I! !I I! I! I! !I I! I! !I ..!!.
  .P101   .01 *. 04
  • 02 .06 .14 .14*
  • 28 .13 .14 .11 .09 .09 .09 .10 .29 .27 .12 .09
  • OB .10 .17
  • 22 .24
  • 26 3 * .JS \

Pl.U. .08 .03 .oo .03 .16

  • ti .26 .10
  • 18 .11 .07 .OS .06 .OS .34 .24 .16 .11
  • 13 .09 .21
  • 20
  • 22
  • 33 . J *..;!4 P12A .09
  • 07
  • 04 .01 .14 .ts .24 .13 .19
  • 09 .as .06 .as .20 .2S .1B .13
  • 10
  • OB
  • la .14
  • 18 .28 ."21 3.14 P13l .a9 .06 .04 .08
  • 10 .13 .12 .14 .1s
  • 07
  • 04 .OS .ta .13 .14 .22 .oa .a7 .12 .1S .oa
  • 21
  • 19 .1B . 2.74 a<re .08 .os .03 .OS .13 _.11 .23 .12 .1S .12 .07 .a6 .a7 .11 .24 .20 .11 .1 a .1a .13 .18
  • 18 .22 .22 J~ *a7
                                                                                                                                                    *-i*

I

                                                                                                                                                      .I
                                                                                                                                                     . J I

I) I I i

                                                          **                                                          :-c*r*
                                                                                                                                        ~
                                                                  -----...:...--          ~-
                                                                                                ")
                                                                                                                       ..                l Table 3. 1L Palisades Hetwork: Daily Total Precipitation (Inches) for December 1977 DAY    PO 1 A    P02A P03A . P04A-    P05A       P06A      P07A               P08A       P09A   P10A     P 11A    P12A    P13A 1    0.56        M  0.49     0.51     0.51       0.53      0.47               0.50        M     0. 50 . 0.48     0.47    0.47 2     0. 00. M. o.oo     o.oo     o.oo       o.oo      o.oo               0.00        M     0.00     0.00     o.oo   o.oo 3     0.00       M   0.00     o.oo     o.oo       o.oo      0.00               0.00        M     o.oo     0.00     0.00   o.oo 4     o.oo       M   o.oo     o.oo     o.oo       o.oo      0.00               0.00        M     0.00     o. 00 . 0.00    o.oo
  .5    o.oo        M  o.oo     0.03     0. 03      0.02      0.01               o.oo        M     0.01
  • 0.02 0.02 6 0.06 M 0. 15 0.20 0 .22 0.27 0. 13 0. 2LJ M 0.20 (0.16) 0. 17 -0. 17 7 0.01 M 0.02 0 ._02 . 0.01 0. 01 . 0.00 0.00 0.00 0.01 0.03 0.01 0.01 8 0.30 0.32 -0.27 0.42 . 0. 30 0.31 0.39 9
  • M 0.05 o.oo 0.07 0. 12 0.23 0.07
  • 0.35 0.05 0.37 0.08 0.05 0.32 0.07 10
  • M M 0.36 0.45 0.45 0.38 0.29 0.57
  • 0.34 0.40 0.34 0.26 11
  • 0.10 0. 14 0. 10 0.07 0.07 0.12
  • 0.15 0.13 0. 11 0.09 12
  • M M o.oo o.oo o.oo o.oo o.oo o.oo
  • o.oo o.oo o.oo o.oo

. 13 * (1.16) l1 o.oo 0.01 0.00 o.oo o.oo o.oo * (0.88) 0.00 0.02 o.oo o.oo 14 o.oo i1 o.oo o.oo o.oo o.oo o.oo o.oo o.oo 0.00 o.oo 0.00 o.oo 15 0.00 11 o.oo 0.00 o.oo o.oo 0.00 0.00 o.oo o.oo 0.00 0.00 o.oo 16 o.oo M o.oo o.oo o.oo 0.00 o.oo o.oo o.oo o.oo 0.00 o.oo o.oo 17 o.oo M o.oo o.oo o.oo o.oo 0.04 0.02

  • o.oo 0.00 0.00 o.oo 18 0.03 M 0.05 o.oo -0.04 0. 0.1 0.04 0.04
  • 0.04 0.00 0.02 0.00 19 o.oo M o.oo 0.00 o.oo o.oo o.oo 0.00 o.oo o.oo 0.00 0.00 20 0.42 M 0.54 0.55 0.59 o.s4 0.58 0.60 *

( 0. 86) 0.60 0.81 o. 53 0.42 21 (). 4 9 M 0.28 0.41 0.37 0.30 0.23 0.40 0.49 0.31 0.46 0.25 0.21 22 0.00 M o.oo 0.00 o.oo o.oo o.oo 0.05 0. 0 7 0.00 0.00 o.oo o.oo 2] 0. 04 l1 o.oo (). 00 o.oo o.oo o.oo o.oo o.oo- 0.04 0.05 o.oo o.oo 24 0.02 M 0.01 0.02 0.04 0.03 0.04 0.03 0.02 0.04 0.03 0.01 0.04 25 0.10 I1 0. 0 6 0.07 o.os 0. 11 0. 12 0.06 0.06 0.07 0.05 0.06 0.04 26 D. 10 i'l 0.04 0.04 0.07 0.09 0. 11 D. 07 0.06 o.os 0.07 0.05 0.06 27 0.06 M 0.01 0.07 0.03 0.07 0.03 0.06 0.02 0.06 0.04 ** 0.05 28 0. 11 i1 0.04 0.03 0.05 0.02 0.07 0.06 0

  • 11 0.06 0.05 (0.05) 0.06 29 o.oo M o.oo 0.00 o.oo 0.02 0.01 o.oo 0.02 o.oo o.oo o.oo o.oo 30 o.oo ~ o. 00 . o.oo 0.00 0.00 o.oo o.oo o.oo o.oo o.oo o.oo o.oo 31 o.oo M 0.01 0.00 o.oo o.oo o.oo 0.01 . 0. 02 0.00 o.oo 0.01 0.01 Tot (3.16) M 2.51 2.96 2.93 3.01 2.85 3.27 M 2.88 (3.23) (2. 54) 2.30

Table J.2L Palisades Network Greatest precipitation received in a given period for December 1977 0\ Station 1-Hour 3-Hour 6-Hour 12-Hour 24-Hour amt. day time amt. day time amt. day time amt. day time amt. day time ( :!-n.) began (in~) began (in.) began (in.) began (in.) began P01A [1 M M M M M l1 M M H M M M l1 M P02A M M M M M N M M M M M M M M M P03A 0 .19 1 0000 0.39 1 0000 0.40 1 0000 0.46 20 0300 0.56 20 0300 P04A l1 M M M M .M M M 11 M M M M M M PJSA 0. 16 1 0100 0.37 1 0000 0.38 1 0000 0.47 1 0000 0.62 20 0300 P06A 0.14 1 0100 o. 31 1 0000 0.34 *20 0300 0.48 1 0000 0.55 20 0300 P07A 0.13 1 0000 0.31 20 0300 o. 38* 20 0300 0.43 20 0300 0.59 20 0300 POSA 0. 15 1 0100 o. 3~ 1 0000 0.39 1 0000 0.49 1 !) 1300 0.65 10 0400 P09A M M M M M M M Ii M M M M M M M P 10 A (). 19 1 0000 o. 38 1 0000 0.40 1 0000 0.48 1 0000 0.62 20 0300 P11A M H M M M l1 M M M M M M M M M P12A M M M M M M M M M M M M M t1 M P13A 0. 14 1 O*JOO 0.28 . 1 0000 0.31 20 0300 0.41 1 0000 0.47 1 0001)

     *               \_. ____ .
                                      -----    ~ -----                       C__ _J*  ;~J     *t.---.--.i .              I         !

___ ___J

47 \. POlA !I ft II ft II !I  ! Table 3.3L Palisades Ketvork: Precipitation accumulated in each hour oece*ber 1977 Sta 0100 0200 0 300 0400 osoo 0600 0700 0800 0900 1000 1100 1200 1300

                     !I   II                                       !    !I   !     !     II (EST) for Precipitation (inches) accu11u.lated in each hour interval ending at 1400 lSOO 1600 1700 1800 1900' 2000 2100 2200 2300 2400 Total P02A     ft   ft   II   !     !      !I   s    s   ft     !      II   ft   !I    !I    !     !    !    8   *!     !    !I   !    !    !      !

P03A

  • 23
  • 23 .06 .13 .14 .17 .07 .11 .07 .08 .10 .09 .09 .16
  • 16
  • 13 .07 .07
  • 09 .. 09 .08 **.04 *.04 .as 2.51 POU .21 .21 .09 .06 .17 .16
  • 10 .09 .11 !I  !  ! !I ,19 .19 .17 .14 .12
  • 09 .09
  • 20 .06 .04 .IJ-4  !

POSA

  • 20 .20 .08 .13 .14 .10 .OB .09 .11
  • 09 .14 .12 .08 .16 .21 .19 .19 .1S .11 .07 .13 .07 .OS .04 2.94 P06A .20 .20 *o 9 .14 .14 .10 .07 .09. .14
  • 14 .
  • 14 .12 .10 .12
  • 20
  • 20 .18 .17
  • 09 .oa .-07 .13 .07 .06 3.03 POH .19 .15 .OS .10 .18
  • 19
  • 1S .11 .09 .11
  • 06 .09 .14 .12 .16 .22 .20 .oa .*OB .09
  • OB .11 .06 .07 2.B7 POSA .21 .21 .10 .14
  • 14
  • 14 .OB .09 .11 .11
  • 18
  • 12
  • 1S
  • 2B .22 .15 .14 .11 .-09 .11 .1s .oa .oa .07 3.26 P09l  ! ft !I  ! !I !I !I  ! s !I  !  !  ! !I  !  !  !  ! !I II  !  ! !I  !  !

P 10 A .24 .23 .07 .oa .16 .1s .10 .14 .11 *. 15

  • 13 .oa .12 .1 B .17 .16 .12
  • 10 .*08 .07 .08 .06 .OS .-OS 2. 86 P11A  ! s !I  ! !I II  ! !I  !* II  !- !I II !I  !  ! !I  ! *!  ! II !I II !I  !

P12A s !I  ! II !I  ! !I s s !I s  ! .oa .12 .17 .16 .15 .10 .09 .07

  • 12 .04 !I !I s P13A
  • 16 .1s .03 .10 .14 .08 .08 .OS .09
  • 14
  • 16 .oa .OS .07 .12 .n
  • 13 .13 .11 .00 .07 .06 .OS .04 2. 31 ave  ; 20 .20 .07 .11
  • lS .14 .09
  • 10 .10 . .12 .13 .10 .10 - .16 .18 .17 .1s .11
  • 09 .OS .11 .07 .OS .as 2.83

48 IV. TEMPERATURE Air temperature is measured with a hygrothermograph located in a standard instrument shelter. It is recorded in degrees Fahrenheit and reported to the nearest whole degree. The data are given in 3 tables for each month. The first table gives the daily maximum (midnight to midnight) for each station; the second gives the daily minimum; and the third gives the daily average temperature. Since a continuous record of temperature is obtained, the daily average temperature (T)is calculated using a finite-difference approximation to the equation l T = 1/24 204 T(t) dt, where T(t) is the I variation of temperature with time and is assumed linear between data points. This method is used instead of the average of daily maximum and minimum temperatures normally

                                                                    *.I

__ I; listed in climatological summaries, since it is more accurate J for comparing temperature data among stations. At the bottom of. each table, two sets of averages .are given for each station. The top set of ni.;unbers is based on all data available for each station for that month. The bottom set is based on data only for days for which temperatures were recorded at all stations in operation during the month. _j

  • Table 4. 1A P~~isades Networ~:-~ai:~-Ha.m Te:~e;:~m~ ~~)
                                                                           ~

f

                                                                             ~ - -

O['

                                                                                          .January 1977
                                                                                                       ~--  -, *..         i DAY    P01A   .P02A      PO~A   P04A    POSA     P06A  P07A   POBA   P09A         P10A          P11A    P12A      P13A 1      21       23       23     22      21       21 '  21     21      23              22        22      22        20 2      22       23       22     21      20       21    19     20      24              21        21      20        19 3      26        27      27     25      26       26    24     25    . 27              26        26      26        25 4      26       33       33     .31     30       33    32     31      33              29        30      31        32 5      21       29       28     27      26       27    25     27      27              27        25      26        25 6      23       25       25     23      23       23    22     23      23              22        22      23        21 7      19        21      21     20      19       21    19     19      20              20        18      19        19 0      20       20       20     19      20       20    19     19      21              19        18      20        19 9      12        13       13    11      11       13    11     10      13              12        11      12        11 10      18        19       19    18      17       19    16     1 a.   '18              18        18      17        17 11      15
  • 17 17 15 16 16 14 15 16 15 15 15 14 12 10 12 12 11 11 11 10 11 12 10 10 10 10 13 22 2ti 22 26 24 22 21 M 24 23 22 22 22 14 25 27 27 M M 27 24 M 26 M 25 25 M 15 19 19 19 M M 20 19 M 19 M 19 20 M 16 6 6 7 M M 8 6 M 6 M 6 7 M 17 14 12 12 M M 12 11 M 12 M M 12 M 18 22 21 23 M M 23 22 M 22 M M 22 M 19 22 24 24 23 23 23 23 23 23 23 24 22 21 20 22 22 22 23 23 25 22 21 22 23 23 23 22 21 26 26 24 27 25 26 26 27 24 29 28 26 25 22 21 24 25 25 26 26 24 25 28 27 26 26 26 23 23 22 24 25 24 24 23 23 23 25 23 23 23 24 28 27 28 28 29 29 29 27 28 29 29 28 27 25 27 26 28 27 27 28 28 27 27 28 28 27 27 26 28 26 26 27 27 27 25 26 27 27 26 26 26 27 11 12 10 12 11 11 10 10 11 11 10 10 9 28 18 17 18 17 18 19 17 17 17 17 17 17 16 29 7 6 u 10 8 8 *7 7 7 9* 7 8 1 30 10 - 9 11 11 11 . 10 10 10 10 9 11 10 9 ,

31 18 18 18 19 17 18 17 18 18 18 19 17 17 Averages and extremes for all data Ave 19.4 20.3 20.5 20.9 20. 5 20.5 19.2 20.0 20.4 20.7 20.0 19. 7 19.6 Max 28 33 33 31 30 3) 32 31 33 29 30 31 32 Min 6 6 7' 10 (! 8 6 7 6 8 6 7 7 Cases 31 31 31 26 26 31 31 25 31 26 29 31 26 Averages and extl"emes for days with data from all stations having data for this month Ave 19.8 20. B 21.0 2 o. 7 20 .. 4 21.0 19.7 20. 0 20.9 20.6 20.3 20.2 19.5 Max 28 33 33 31 30 33 32 31 )] 29 30 31 32 Min 1 6 0 10 8 8 1 7 7 8 7 8 7 """

                                                                                                                       \.0 Cases   25        25      '25    25      25       25    25     25      25              25        25      25        25

Table 4.2A Palisades Network: Daily Minimum Temperatures (F) for January 1977 U1 0 DAY P01A P02A POJA P04A POSA P06A P07A POSA P09 A PlOA P 11A P 12A Pl3A 1 14 15 15 15 14 13 . 12 .13 15 14 14 14 14 2 1J 15 15 15 13 13 12 13 15 13 14 14 13 3 15 16 17 16 16 16 15 15 17 15 15 15 15 4 3 14 6 5 11 1 12 5 13 4 9 13 13 5 -1 6 -1 -2 -1 -4 0 -4 0 -3 -2 5 4 6 -1 5 -2 -2 -2 -4 -1 -4 0 -4 -2 3 4 7 6 7 7 6 6 1 5 6 7 6 6 6 5 8 5 8 7 7 6 7 5 6 6 6 6 6 5 9 -3 -1 -1 -6 -J -6 -4 -6 -2 -8 -3 -3 -2 10 6 7 9 7 7 8 6 1 1 6 7 1 6 , 1 0 3 3 2 2 3 0 1 2 1 2 1 1 12 J 4 5 0 1 1 0 -2 2 1 1 1 -1 13 -9 -5 -4 -6 -6 -6. -6 M -4 -8 -6 -7 -6 14 16 17 17 M M 16 17 M 16 M 16 17 [1 15 2 3 1 M M 3 3 M 0 M 1 2 M 16 -3 -2 -2 M M -1 -1 M -2 M -1 -1 M 17 5 4 5 M M 6 4 M 4 M M 5 M 18 -2 8 2 M M -2 4 M 1 M M 8 i'l 19 1 5 4 5 4 5 5 4 4 4 4 5 3 20 1 4 3 4 2 4 4 ) 4 2 3 4 2 21 18 17 17 18 18 18 15 17 17 19 18 18 16 22 12 12 13 13 13 11 8 11 12 14 13 13 10 23 10 10 12 14 12 14 13 12 11 13 13 12 l1 24 23 22 24 25 24 23 23 23 23 25 23 23 23 25 21 21 21 21 21 22 19 21 22 22 21 21 20 26 7 6 5 6 6 .1 5 5 5 6 4 6 5 27 4 4 3 4 4 5 3 3 4 3 3 4 2 28 -2 -2 -1 -2 -1 -1 -2 ,..3 -2 -2 -3 -2 -3 29 3 2 3 3 3 2 1 2 4 3 2 2 1 30 3 3 4 5 5 5 2 4 4 5 5 5 4 31 10 9 11 11 11 10 9 10 . 10 9 11 10 7 Averages and extremes for all data Ave 5. 8 7.6 1.0 7.1 7.2 6. 5 6. 1 6.5 6.9 6. 4 6. 7 7.3 6.6 Max 23 22 24 25 24 23 23 23 23 25 23 23 23 Min -9 -5 -4 -6 -6 -6 -6 -6 -4 -8 -6 -7 -6 Cases 31 31 31 26 26 31 31 25 31 26 29 31 26 Averages and extremes for days with data from all stations having data for this month 6.7 6.5 8.0 7.0 7.4 o. 1

                                                                                                         -3 .-3 Ave      6 .. 8    8. 5   8.0     7.6        7.7      7.4                                                           7.1 Max     23       22      24     25         24       23      23      23       23       25         23       23       23 Min.    -3       -2      -2     -6        -3        -6      -4      -6      -2        -8        -3 Ca      25       25      25     ?.5
                              ~~     \_.

25 . 2 5 . 2~ . 2~ ~5

                                         --- ~- . . . ..____; -~- ___J .__J ~J 25 :___J. ? i;
                                                                                                *-~_J
                                                                                                        *~-*    .~
                                                                                                                  ~5
    . . -.. ... ,..     ...- .....       .....    ... ,   ---    *         --~   ,______ r*  -**    ~--- ... ,.    ..... -*,   .---- ,., -- ..... , *.
  • Table q. JA Palisades Network: Daily Avera~e Temperatures, (F) for January 1977 ..

DAY P01 A P02A P03A P04A POSA P06A P07A P08A P09A PlOA P 11 A P12A P 13A 1 18 19 19 18 10 17 17 17 20 18 18 18 17 2 16 10 17 17 16 16 15 16 18 16 16 16 16 3 21 22 22 21 21 21 20 20 22 21 21 21 20 4 20 25 24 23 23 23 22 21 24 21 2~ 23 22 5 10 16 12 11 13 10 12 10 13 9 12 14 12 6 16 18 16 16 16. 16 16 16 19 16 16 17 16 7 13 14 15 13 13 15

  • 13 13 15 13 13 14 13 0 12 13 13 12 12 1) 11 12 13 12 12 12 12 9 4 6 5 4 4 6 4 4 5 4 4 5 4 10 13 15 15 13 13 13 11 13 14 13 13 13 12

.11 10 11 11 10 9 10 7 10 10 9 9 9 7 12 8 10 10 8 9 9 7 8 9 8 9 7* 7 13 7 8 0 9 8 8 7 M 8 7 7 7 7 14 20 21 22 M M 22 21 / M 21 M 21 21 M 15 12 13 12 M M 13* 13 M 11 M 12 13 M 16 2 2 3 M M 4 3 M 2 M 2 3 M 17 8 8 9 M M 9 1 M 8 M l1 8 M 18 12 14 14 M M 12 11 M 12 M. M 13 M 19 16 17 17 18 17 18 10 17 17 18 18 18 16 20 14 14 13 13 13 13 12 12 13 13 13 13 11 21 22 *22 21 22 22 22 20 22 22 23 23 22 20 22 17 17 18, 19 19 19 17 18 18 19 19 19 17 23 18 17 18 20 19 19 1.9 18 18 20 19 18 17 24 25 25 26 26 26 27 26 25 26 27 26 25 25 2-5 25 24 25 25 25 26 25 24 25 26 25 25 24 26 19 17 18 18 19 19 17 17 18 18 18 18 17 27 7 6 6 7 7 8 6 6 7 7 6 7 5 28 4 3 4 4 4 5 3 3 4 3 3 4 2 29 5 4 6 6 6 6 4 5 6 6 5 5 4. 30 6 5 8 8 7 7 6 6 7 7 7 7 6 31 13 13 15 14 14 14 12 14 14 14 15 13 12 Averages and extremes for all data Ave 13. 4 14.1 14.3 14.4 14.5 14. 2 13.0 13.9 14.2 14. 2 13. 9 13.8 13.3 Max 25 25 26 26 26 27 26 25 26 27 26 25 25 Min 2 2 3 4 4 4 3 J 2 3 2 3 2 Cases 31 31 31 26 26 31 31 25 31 26 29 31 26 Averages and ex tr-em es for days with data from all stations having data for this month Ave 14.1 14.8 15.0 14. 7 14~7 14. 9 13.7 13.9 15.1 14.5 14.4 14.5 13. 5 Max 25 25 26 26 26 27 26 25 26 27 ,26 25 25 Ul Min 4 J 4 4 4 5 ) 3 . 4 3 3 4 2 1-4 Cases 25 25 25 25 25 25 25 25 25 25 25 25 25

Ul N Table 4.1n Palisades Network: Daily Maximum Temperatures (F) for Febr.ua.ry 19 77 DAY PO 1.!'\ P021\ P03A P04A PO 5 A l?O 6 A P07A P08A P09A p 1 0 I\ P 11 A 1 P12A P13A 22 11 [1 22 23 23 21 24 23 23 2 25 21 22 i1 M f1 26 26 26 25 27 M 26 26 !1 24 J M M 28 28 28 11 27 !1 M 28 28 11 28 4 :1 ~ 27 28 27 1'l 26 '1 M 27 27 ['j 27 5 f1 M 17 16 16 . 17 16 15 6 M 11 14 M ., 16 16 17 16 17 15 16 . 17 11 14 ., 17 18 15 ~ 1 11 l1 16 19 19 18 18 M 19 17 20 17 M 8 19 23 21 23 23 22 20 23 22 21 23 20 21 9 35 35 35 37 38 38 39 36 36 36 38 37 110 10 42 45 45 1!4 45 46 45 45 44 45 46 11 111 42 44 41j 42 44 44 112 41~ 44 43 45 44 44 43 12 4J 42 44 44 45 43 42 44 43 45 45 13 43 43 33 31 33 34 34 33 32 .3 4 34 35 35 ' 14 33 33

         .29           28                30      29     31            29                29        JO        30              30         29 15                                                                                                                                                  30              30 17          19                18      1,8     19           19                18       19         18              19         18            18 16                                                                                                                                                                  19 21          25                22      23       M.          22                23       21         23              23         23            21 17       31           30                                                                                                                                            24 29      29       M           29                28       29        29               30         30            28              JO 18       34          36                 35      36       M           35                36       34         35              35         36            35              36 19       29           29                29      JO. 31            28               30        30        29               29         29            29              29 20       2 f3         28                27      28     30            30                29       27         26              28 21       27 27           27               30 28                28      28     28            27                27       28        28               29         27 22       41                                                                                                                                        27               28 42                 41      43     47            45                46       42        41               43         43           44              44 23       52          51                 54      54     54            51               50       54         51               54         52           50              52 24       47          44                 49      48     48            45                47       46        47               48         46 25                                                                                                                                                 46              47 36          34                 36      35     37           35                36       35         36               36         36 26                                                                                                                                                  35              36 32          31                 33      33     34            32               32       33         33               33         33           32 27        29                                                                                                                                                        33 28                 28     27      29           27                27       29         27               28         27           26 28        32        . 34                                                                                                                                            27 32      ]1      31            29               32       32         30               31         32           30              30 Averaqes and extremes for all data Ave       3 2. 7      33.5              31. J   31. 2  3 2 .. 1       31. 0            30.8     3 3. 3     31. 0           31 .. 3    31.4         30. 7            32.2 Max       52          51                54      54      54           51                5()      54         51              54         52           50               52
'.1in   '17           19                14      16      15           16                16       19         14              16         16 Cases                                                                                                                                              15               16 22          21                26      ~8     25            26                28       23         25             28          28          25                26 Ave~ages and extremes for days with data from all stations having data fo~ this moqth Ave       33.9        3 4. 1            34.7    35.0   36.0          3 4. 5           34. 7     35. 1      34.3           35. 3       35.0       3 4. 1             34.9 Max       52          51                54      54     54            51                5*J      54         51             54          52          50                52 Min       17          19                18      10     19            19               18        19         18             1 <)        18 Cases                                                                                                                                             18                19 18          18 1u      18     18            18               18        18         18             18          18 18         i .8
                                                                                              '              '            I

___J -- __ _,i

                  --*        **- - *-*-    '    "--*  ~--       L----       ...__ ........ _~*         ' ~--

I

                                                                                                                 .* - - J                ~-J  ...... ____,     ------- 1
      ***              r- ** *"

Table 4.28 Palisades Network: Daily r----~

                                                              ~inimum Temperatures

( F)

                                                                                                      ' . - .. ~

for :E'ebruary 1'-J77 01\ y PO 1r1 P02A. P03A ~04A PO 5A P06A P07A Pil8A P 09A P10A P1H P1 2 A P13A 1 16 11 N 17 16 16 15 17 16 16 16 16 17 2 !1 r1 M 3 4 1 d 4 M 1 3 M 5 3 M M 25 lb 25 M 24 M M 26 26 M 24 4 11 M 17 16 16 M 15 M t-1 16 16 M 16 5 l1 M 9 9 9 8 7 M 8 9 9 9 8 6 M t1 3 0 2 -4 -4 H -1 2 5 5 M 7 *M M -3 -2 0 -9 2 M -3 -4 0 6 M-f.l 6 5 . 8 7 8 8 7 7 7 6 8 8 6 9 17 16 19 19 19 20 18 19 18 19 19 18 18 10 18 24 27 24 24 19 23 21 24 25 22 25 23 11 25 31 26 28 29 26 31 27 29 28 28 JJ 3) 12 25 30 25 28 29 28 32 27 33 26 30 32 33 13 29 28 29 2-9 31 29 29' 30 30 30 29 . 30 29 14 17 15 18 17 18 16 15 17 18 19 18 18 17 15 3 3 1 -1 . 7 -1 0 3 7 2 -1 6 -1 16 -3 -2 -4 -4 M -5 -5 -5 -1 -4 -5 0 -4 17 1 3 -3 -2 M -1 7 -4 1 -4 -1 5 3 18 23 24 22 22 M 21 22 19 20 21 21 24 24 19 16 15 16 16 17 16 14 15 15 16 15 16 17 20 11 12 i4 13 13 9 8 11 13 13 10 12 10 21 -3 -1 -4 -3 -2 -6 -4 -6 -4 -4 -5 2 -1 22 24 26 28 28 28 25 27 28 28 29 27 27 28 23 38 38 .38 4u 4 (j 37 38 38 38 40 38 38 40 24 31 29 31 31 33 JO 31 31 31 31 31 31) 30 25 30 29 31 29 32 30 ]!J 31 29 31 30 3:) 30 26 27 25 26 26 26 24 21~ 25 26 26 26 26 26 27 24 23 24 24 23 23 2) 23 . 23 22 23 22 23 28 20 24 25 22 25 17 21 23 23 19 22 24 24 Averaqes and extremes for all data Ave 1fj.0 18.9 17. 2 1 b. 5 18.9 14. 5 16.4 17. 4 17. 1 16. 3 16. 4 18. 5 1tl. 4 Max 38 38 3d 40 40 37 38 3 8* 38 40 38 38 40 ~I in -3 -2 -4 -4 -2 -9 -5 -6 -It -4 -5 ,) -4 Cases 22 21 26 28 25 26 2B 23 25 "2d 28 .2 5 26 Averages and extrem~s for days witb data from all stdtions hdving data for this month Ave 19.9 20.7 21.2 2 Ll. 9 22. 2 19. 4 2i). 4 2 i). 6 2.1. 6 21.0 20.6 2 2. 1 21. 4 Max 11 in 3 fl

          -3 38
                  -1 38
                                 -4 40
                                         -]

40

                                                  -2 37
                                                              -6 38          38
                                                                                 -6 38
                                                                                              -4 40
                                                                                                                -ti 38
                                                                                                                       -5 38 2

40

                                                                                                                                               -1 Ul Cases      18      1H              18     18        18         18      18          18          18                 1 i3  18              18      1a     w

Ul

                                                                                                                                                      .i:::.

Table 4.38 Palisades Network: Daily Average Temperatures ( F) for February 1977 DAY P01A P02A POJA PO 4A i!O 5 A P06A P .)7A P08A pij9A P10A P1H P 12A P13A 1 18 i1 H 19 19 19_ 18 20 19 19 20 1 CJ 19 2  !'l l1 M 17 17 17 17 17 M 16 17 M 17 3 M r1 26 27 27  !'l 26 [1 M 27 27 t1 26 4 M M 23 23 23 M 22 M M 23 23 M 23 5 t1 M 12 12 12 12 11 M 11 12 12 11 11 6 M M 11 11 11 10 9 M 10 11 12 11 M 7 l1 !1 11 11 11 10 10 M 11 11 12 11 M 8 13 13 15 14 15 15 14 15 14 15 15 14 14 9 27 28 30 30 31 30 29 30 30 30 31 30 30 10 32 36 38 36 J7 35 35 36 36 37 37 36 35 11 34 3 ') 37 37 39 37 38 37 38 38 ]8 38 39 12 34 35 36 36 J7 36 36 36 37 37 37 37 37 13 31 30 31 31 32 31 30 31 32 32 32 31 31 14  :.:!4 23 24 :n 25 23 23, 24 25 25 24 24 24 15 11i 13 14 14 16 14 13 15 15 16 14 15 111 16 9 ') 8 9. M 1 7 1 10 B 9 10 8 17 17 17 16 17 l1 18 19 16 19 16 19 18 19 18 28 28 29 29 M 29 2q 28 29 29 29 30 30 19 23 22 22 23 24 22 22 22 22 23 22 22 23 20 20 2 L) 20 20 21 19 20 20 20 21 20 19 20 21 16 17 15 15 16 13 15 15 15 16 15 17 16 22 33 35 36 36 38 35 37 35 35 36 36 36 37 23 45 43 46 46 46 43 44 45 44 46 45 45 46. 24 37 35 39 39 39 37 38 37 38 38 38 37 38 25 33 32 . 34 33 34 33 33 33 33 33 33 33 34 26 2a 27 29 29 30 28 29 29 29 29 29 28 29 27 26 25 26 26 2 f. 25 25 26 25 25 25 25 25 28 27 27 28 27 28 25 27 27 27 27 27 26 27 Averages and extremes for all data i', ve 2 5. 9 26.J 2 5.J 24.7 2 6. 1 24.0 24. 1 26.2 25.0 24.8 24.9 24.9 25.8 Max 45 43 46 46 46 43 44 Lt 5 44 46 45 45 46 t1in 9 9 8 9 11 7 7 1 10 8 9 10 8 c cl ses 22 21 26 28 25 *r

                                                                      -D        28       23          25        28          28         25       26

~verages an~ extremes foe days*~ith data from all stations having data for this month fl ve 27.6 27.6 28.9 28.7 .2 9. 6 27.9 28.2 28.6 28.6 2 9. 1 28.7 2 8. 5 2 B. 7 Max 45 . 43 IJ 6 46 46 43 IJ4 45 44 46 45 lJ 5 46 Min 13 13 14 1 IJ 15 13 13 15 14 15 14 14 14 18 18 18 18 18 18 18 18 cases HJ 18 18 18 18

      **                         *------   -~---- ~-
._.-...--- \_-~ ----- ----~
                                                                                                           ~--)    .____)

_ _ _1

                                                                                                                                     ~-  __J   - _.)         --
.*    *~-able*-~.-1C'P-~lis-a~~s ~~t~o~~:- ,Dai~~- Ma.nm T:~pe~at-~~e-: ~F)   for    ---- '.1a~~~-- 19~~-~.

DAY P01A P02A P03A P04A P05A P06A P07A POOA P09A P10A P11A P12A P13A 1 26 27 27 28 2S 27 26 28 27 28 27 27 27 2 36 39 39 40 39 40 40 39 38 40 40 39 40 3 41 40 42 41 M 40 42 41 40 41 41 41 41 4 41 42 43 42 M 42 44 43 41 43 43 43 42 5 34 33 34 35 36 34 35 34 34 35 34 35 35 6 34 36 35 35 36 35 35 34 34 ' 36 ]5 35 34 1 38 40 39 41 ~1 40 41 39 39 41 41 39 40 8 61 62 62 64 65 61 62 63 62 64 64 62 62 9 57 59 60 63 f3 60 61 62 60 62 61 61 62 10 62 66 65 66 67 64 64 66 64 66 66 65 65 11 69 70 68 69 69 68 69 68 68 69 70 67 68 12 68 67 68 69 67 67 68 67 68 68 68 67 67

13. 46 l!6 47 49 q7 47 47 47 47 48 48 qg 47 14 52 55 54 55 ~2 53 52 52 53 53 54 53 52 15 69 71 71 72 11 71 72 71 70 71 73 70 71 16 45 48 46 48 47 47 48 45 45 46 46 46 48 17' 43 44 43 43 ti2 43 42 43 42 44 44 4j 43 18~ 33 34 34 35 34 35 34 35 34 34 34 34 35 19 *40 41 39 40 40 40 40 40 39 40 39 39 40 20_ 37 qo *37 38 30 30 37 39 37 JB 38 38 11 21 40 42 41 40 40 41 39 40 40 39 40 41 40 22 35 38 36 37 36 37 37 38 36 36 38 37 37 23 . 31 38 38 39 3 8, J 8 38 39 38 37 37 ]8 37 24 38 39 37 39 39 42 40 38 38 38 38 39 41 25 50 52 50 51 ~0 51 50 51 50 51 5l 49 50 26 62 63 61 62 62 61 60 62 60 62 62 60 60 27 68 67 66 67 65 66 65 66 65 66 67 66 66 28 64 64 64 65 64 64 64 65 64 64 63 6] 64 29 62 63 64 66 66 66 66 65 65 65 68 66 65 30 60 60 61 63 62 62 62 61 61 61 63 61 62 31 41 40 41 41 Q2 42 44 41 42 42 41 42 42 Averages and extremes for all data Ave 48.0 49.2 48.8 49.8 49.9 49.1 q9.2 49.1 48.4 49.3 49.5 48.9 49.0 f".ax 69 71 71 72 71 71 72 71 70 71 73 70 71 Min 26 27 27 28 28 27 26 28 27 28 27 27 27 Cases 31 31 31 31 29 31 31 31 31 31 31 31 31 Averages and extremes for d~ys with aata from all stations having data for this month Ave 48.5 49.8 49.2 50.3 49.9* 49.7 49.6 49.6 *49.0 49.8 50.0 49.3 49.6 Max 69 .71 71 72 11 71 72 71 70 71 73 70 71 Min 26 27 27 28 20 27 26 28 27 28 27 27 27 t::

Cases 29 2~ 29 29 29 29 29 29 29 29 29 29 29

Table 4.2C Palisades Net~ork: Daily Minimim Temperatures ( F) for March 1977 Ul O'\ DAY P01A P02A P03A P04A PCSA P06A P07A POOA P09A P10A P 11 A P12A P13A 1 13 13 13 9 15 11 9 8 11 7 7 15 14 2 18 24 18 14 14 10 14 18 17 14 13 16 12 3 29 29 32 31 M 30 31 30 ]1 31 )1 32 30 4 33 33 33 34 M 34 33 34 )) 34 )4 34 33 5 30 30 31 32 32 31 31 31 31 32 31 31 31 6 31 31 30 31 32 30 31 31 30 ) 1 .) 1 30 31 7 24 28 25 29 31 30 29 26 30 26 28 29 29 34 31 34 33 32 31 34 34 J] 8 9. 24 43 29 48 32 50 . 50 50 48 . 48 33 50 48 49 49 50 49 10 33 39 ]8 40 ll2 43 43 37 40 36 40 43 44 11 36 44 47 47 44 46 49 47 48 45 46 46 46 12 44 45 46 46 46 46 47 46 45 46 45 47 47 13 38 39 41 42 lj 2 41 . 42 40 41 41 42 41 41 14 40 38 39 41 tj 1 42 42 40 41 41 41 42 42 15 39 39 41 42 ll2 43 43 39* 42 40 41 41 43 16 25 30 24 25 26 30 26 23 25 23 24 30 29 17 23 27 21 22 22 25 23 22 24 19 22 26 26 18 31 32 31 32 31 32 31 32 31 31 31 29 32 19 30 31 30 31 30 31 31 31 31 JO 30 29 31 20 29 3*1 29 29 29 29 29 30 29 29 30 29 28 21 31 33 30 31  :: 1 31 31 32 33 29 30 31 31 22 25 29 27 29 28 29 27 30 30 27 28 29 28 23 18 22 19 21  :.22 23 19 20 22 18 20 23 22 24 15 19 14 16 20 22 18 17 21 15 16 21 20 25 21 25 23 24 27 27 25 24 27 23 23 26 26 26 31 32 32 34 32 33 32 31 33 32 J2 32 31 27 47 47 47 48 47 47 45 47 47 47 47 47 47 28 46 50 53 54  !: 4 55 53 53 54 53* 53 54 53 29 44 50 45 45 46 47 49 45 47 44 45 49 49 30 41 40 41 41 lJ2 42 44 41 42 42 I! 1 42 42 31 32 33 3q 33 33 35 33 J] 34 33 33 33 3] Averages and extremes for all data Ave ) 1. 1 33.5 32.8 33.5 33 .. 9 3 4. 1 33.6 32.9 33.9 32.2 32.8 34.2 34.0 Max 47 50 53 54 54 55 53 53 54 53 53 54 53 Min 13 13 13 9 14 10 9 *0 11 7 7 15 12 Cases 31 31 31 31 29 31 31 31 31 31 31 31 31 Averages and extremes for days with rlata from all stations having data for this mdnth Ave 31. 1 33.7 32 .. 8 33.5 33.9 34.2 33.7 33.0 34.0 32.2 32.'l 34.3 3 4. 1 Max Min c~* ~9 . 47 13 50 13 29 1**.** - 53 13 29 c---~ 54 29 9

                                                            !:4.

14 29

                                                          ; -      \ __ -~-

29. 55 10 53 9 29

                                                                                        *~

53 8 29

                                                                                             *-~

54 11 29

                                                                                                   ~---__j 53 29 1
                                                                                                                     ~-__;

53 29 7

                                                                                                                              '-'----~

54 15 29' . 2 9 53 12 _J

                                                                                                                                                        .   - -.J
  • Table 4. JC ;alisades Network; Daily- -~11e.e Tempec~~u:es (F) fol:" Macch 1977~-  :*

DAY P01A P02A P03A P04A PC5A P06A P07l\ P08A

  • P09A P 10 A p 1 lA P12A P13A 1 20 23 23 21 23 21 21 22 21 22 21 22 22 2 28 30 31 30 30 25 28 30 30 30 29 30 27 3 36 35 38 37 M 36 37 31 36 37 )7 37 3.,

4 36 31. 39 39 M 38 39 38 38 39 39 39 3A 5 33 32 32 33 34 32 32 33 32 33 33 33 32 6 32 32 32 32 33 32 32 32 32 33 32 32 32 7 32 33 33 34 35 35 31* 33 33 33 ] 1, 34 34 8 44 47 49 50 49 48 48 49 48 ti .9 49 49 I. 8 9 51 53 55 57 56 53 54 55 54 55 55 54 55 10 48 52 53 55 ~4 53 53. 53 53 53 5) 54 54 11 56 57 58 59 59 57 59 58 58 59 58 57 57 12 58 58 59 60 59 59 59 57 58 59 59 58 59 13 42 42 43 44 44 44 44 42 43 43 44 44 41! 14 45 44 45 46 46 46 45 44 45 45 1i6 46 45 15 49 51 52 52  !: 2 52 52 50 51 51 52 51 52 16 36 39 38 40 39 40 40 37 38 37 39 -3 9 40 17 34 35 33 32 33 34 32 33 34 32 33 34 35 18 32 33 32 )) 33 33 32 33 32 33 ]) 32 3] 19 35 36 34 36 35 35 35 36 35 35 35 34 35 20 33 35 33 34 33 33 33 34 33 33. 34 33 33 21 35 36 34 35 35 35 34 36 35 34 34 35 35 22 31 33 32 33 32 32 32 33 33 32 32 32 32 23 30 31 31 32 31 31 30 32 31 31 31 ] 1 31 24 25 28 26 27 29 30 29 28 28 25 27 29 29 25 36 38 37 38 38 )*8 37 37 38 37 38 37 31 26 46 47 47 47 46 47 46 47 46 47 47 47 46 27 55 56 55 56 55 56 54 55 55 56 55 55 55 28 55 56 57 57 57 58 57 57 57 57 56 57 56 29 56 59 59 60 60 60 60 60 59 59 59 60 60 30 50 51 *51 52 ~3 53 51, 51 *52 51 52 53 54 31 36 36 37 37 37 38 38 37 37 37 37 37 37 AveJ:"ages and.extcemes foe all data Ave 39.8 41.1 41.2 41.9 li2. 0 41. 4 41. 3 41 3 G 41.2 41.2 41.3' 41.4 4 1. 3 Max 58 59 59 60 60 60 60 60 59 59 59* 60 60 Min 20 23 23 21 23 21 21 22 21 22 21 22 22 Cases 31 31 31 31 29 31 31 31 31 31 31 31 31 Avecages and extt:"emes for days with data from all stations having data foe this month Ave 40.1 41. 5 41.4 42.1 lj 2. 0 41.7 41.5 41.5 41.5 . 41.4 41.6 41.7 41.6 Max 58 59 59 60 6C 60 60 60 59 59 59 60 60 Ul Min 20 23 23 21 23 21 21 22 21 22 21 22 22 -....J Cases 29 29 29 29 29 29 29 29 . 29 29 29 29 29

      '1'1ible 4. 1D Palisades Network: Daily Maximum TemperatuLes ( F)                      fOL          ApLil 1977              U1 co DAY    P01A         P02A          PO 3A PO 4A     PC5A      P06A      P07A     P08A    P09A       P10A      P11A    P12A   P13A 1      57            '5 7        55     56        55         55      55       56      54          56       56      54     55 2      63            64          65     68       (; 7        66,     69       65      66          65       67      66     68 1.a                                       c_L                                                               52'    54
 ,,                                                                            52      52          51       52
                                                     ~

3 50 50 52 Sil 54 50 50 51 5J 51 51 52 51 51 51 51 51 52 5 37 36 38 37 36 37 31 37 36 37 36 36 37 f) 39 38 35 38 36 35 35 37 35 37 35 35 35 7 1, 9 51 51 53 ~3 53 53 53 51 53 53 52 53 8 35 37 36 37 37 39 40 36 34 36 37 36 38 q 58 59 55 57 56 56 56 57 56 58 58 55 57 10 77 79 79 81 80 78 80 80 79 80 80 79 80 11 75 Tl 78 81 E1 79 82 78 78 7q 01 80 81 12 81 81 80 81 80 79 80 79 79 81 ao 00 79 13 69 70 72 70 71 70 72 70 71 70 70 70 72 14 64 63 64 63 t3 64 63 63 63 65 63 63 64 15 73 75 74 76 15 75 75 73 73 76 76 75 76 16 73 76 75 76 78 78 78 75 75 76 77 77 79 17 82 83 81 84 83 83 82 81 80 84 84 82 811 18 85 84 03 84 E5 84 ii 4 84 82 85 85 83 84 19 75 75 74 75 13 ., 3 74 74 74 75 73* 71 72 20 77 77 77 79 17 78 70 78 77 78 79 77 77 21 70 71 70 71 10 69 71 70 69 72 10 69 70 22 62 62 62 62 61 61 62 62 62 62 61 62 62 23 63 6 lJ 63 65 65 65 64 64 65 65 65 65 65 24 51 51 50 50 50 52 56 51 50 51 50 50 51 25 44 46 45 45 45 47 49 M 46 46 lt6 45 47 26 51 53 51 51 ~2 53 55 M 50 52 52 51 52 27 74 77 76 77 77 76 78 76 75 77 79 76 77 20 52 51 51 50 ~ 1 50 52 51 51 ') 1 51 50 50 29 52 57 54 54 54 56 59 56 52 55 55 54 57 ] I) 62 t6 64 66 66 69 69 64 64 65 66 67 69 Averages and extremes for all data Ave 61.6 62.7 62.0 6 3. 1 2.7 62.8 63.8 63.3 61.7 63.0 62. 9 62.1 6.3. 2 ~ax 85 84 OJ 84 E.5 84 84 84 82 85 85 83 811 Min 35 36 35 37 36 35 35 36 34 36 35 35 35 Cases 30 30 JO 30 30 30 30 28 JO 30 30 30 30 Averages and extLemes for day~ with data from all stations having data foL this month Ave 62.6 63.6 63.0 6 4. 1 f3.7 63.8 64.6 63.3 62.6 64.0 63.9 6~.1 64a2 Max 85 84 83 84 ES 84 84 84 82 85 85 03 84 Min Cai. 35 28 36 20

                           ~~ -~

35 28 37 28

                                        -*-*    ~-

36 28

                                                       ~ __ ,

35 28

  • 35 28 36 28
                                                                              ~* _;

34 28

                                                                                    *~-'
                                                                                           '---..)

36 28

                                                                                                       ~*

35 28 35 28

                                                                                                                  .__J  ._j35 28
                                                              ~em pe*r~ ~ur-e~

Table 4.2D Palisades Networ-k: Daily M.mum. ( F) for April 1977 I) A y 1?01A P02A P03A PO 4A PC5A P06A P07A POOA P091\ P10 A P11A P12A P13A l 29 29 28 30 30 31 29 30 31 28 29 31 31 2 )6 37 . J7 38 36 37 37 37 37 36 36 36 36 3 37 36 36 36 34 34 JS 35 34 34 34 34 34 4 37 36 38 36 36 17 37 36 36 36 36 36 31 5 32 30 JO 32 29 JO 29 31 JO 30 JO* 31 JO 6 22 25 22 24 24 26 24 24 27 21 2J 27 25 7 2J 25 24 27 25 28 29 24 29 22 27 29 28 fj 19 22 20 .. 19 21 22 21 21 23 19 19 22 22 9 18 20 16 19 19 22 20 1 gi 23 17 19 24 21 10 40 41 45 IJ6 45 44 44 44 46 45 45 44 44 11 57 62 59 61 58 58 61 60 60 60 50 58 61 12 57 62 64 60 56 50 60 60 58 60 59 58 59 13 41 40 40 41 Lj 0 LjJ 44 40 41 42. 41 41 42 1 4. 42 41 L'. 1 IJO 42 15 16 47 4.4 47 50

                              ° 49 46 41 49 50 49 48 43 49 49 44 49 50 41 48 48 42 49 53 42 50 47 49 51 42 4 8 .-
                                                                                                         . 52 48 51 17        56         59      55       57    57       58     60       55        59       56     56         60      60 18        56         62      62       65    EO       56     62       59        63       62     62         63      60 1g        55         58      55       55    56       56     57       54        56       54     55         59      58 20        59         59      61       61    60       60     60       *59       60       61     60         6_0     60 21        59         60      62       61    60       60     61       60        61       62     60         61      61 22        43         1'2     42       43    II 3     45     49       43        43       44     43         44      46 23        39         q2      40       39    40       43     44       38.       42       40     39         43      43 24        36         38      35       36    37       38     39       35        39       35     36         39      38 2*5       39         38      39       38    18       38     40         11      39       39     38         38      36 26        33         37      30       29    31       31     31          M      29       29     27         33      32 21        32         36      31       34    36       37     40        32       39       32     33         39      39 28        29         31      27       30    )0       32     32       30        32       29     28         33      31 2q        26         29      24       26    26       29     29       24        27       25     24         29      30 30        28         32      27       29    30 . 33. 32       29        32       28*    28         ]J      34, Aver-ages and extr-emes for all data
 /\ ve     39.0       40.9    39.5     40.4  39.8     40.6   41.6     39.9      41.J     39.5   39.5       41.6    41. 3 Max       59         62      64       65    60       60     62       60        63       62     62         63      61 l'lin     18         20 -    16       19     19      22     20        19       23       17     19         22      21 Cases     30         30      30       30    30       JO     30       28        30       30     30         30      30 Ayerages and extremes for- days with data from all stations having data for this month Ave       39.3       41. 1   39.8     40.9  ,, 0. 2  41. 1  42.1     39.9      41.9     39.9   40.0       42.0    41~8 f1 ax     59         62     *64       65    60       60     62       60        63       62     62         6J      61
.Mi II     18         20      16       19    19       22     20        19       23       17     19         22      21

. Cases 28 28 28 28 28 28 28 28 28 28 28 28 28

Table 4.3D Palisades Network: Daily Average Temperatures (F) for April 1977 CT\ 0 DA 'l PO 1A P02A P0.3A P04A PC5A P06A P07A P08A P09.\ P10 A p 11A p 12A 1?13A 1 44 113 42 44 43 4) 44 44 43 43 43 43 43 2 49 50 50 51 50 50 52 50 50 49 49 49 51 3 42 42 42 43 42 43 44 42 42 42 42 42 43 4 43 lj 4 4 IJ lj 4 ll3 43 44 4q 43 43 43 43 44 5 34 33 33 ]4 33 33 33 34 33 33 33 33 33 6 31 31 30 32 30 31 )0 32 31 31 30 31 30 7 38 38 38 40 39 39' 39 39 )9 38 39 39 39 8 29 30 28 30 29 31 30 29 29 29 29 30 30 9 J9 40 38 38 40 40 41 39 41 39 41 40 41 10 61 63 63 64 E3 61 64 64 64 65 64 63 63 11 66 69 10 73 70 68 71 70 70 71 70 10 71 12 68 70 71 71 f5 66 69 10 69 71 69 68 {j 9 13 58 58 60 61 (j 1 61 61 59 60 62 60 61 62 14 56 55 54 55 54 55 55 54 55 56 54 55 55 15 59 61 60 61 61 61 61 59 60 61 60 61 61 16 60 _62 62 63 (3 64 64 61 63 63 63 64 64 17 66 69 67 69 69 10 7o 67 69 68 69 10 70 18 69 71 71 72 '12 71 72 70. 71 72 72 12 72 19 64 65 65 -65 E4 65 64 64 64 65 64 65 64 20 65 ES 65 65 f4 65 66 65 65 66 65 64 66 21 63 64 65 65 64 64 64 64 64 65 64 64 64 22 50 49 50 50 50 52 53 50 50 51 50 51 52 2J 51 52 52 52 ~3 53 54 52 53 53 52 53 54 24 43 43 42 Ll2 ~2 43 46 42 43 43 42 43 44 25 42 42 42 42 ll2 42 44 M 42 43 42 42 42 26 42 44 42 lj 1 llJ IU 44 M IJ2 42 41 44 44 27 54 57 56 57 57 58 59 56 57 57 58 58 59 28 41 41 41 q1 ~ 1 42 43 42 41 42 41 41 41 29 40 tf2 40 41 . LI 1 43 44 41 11 1 41 41 43 44 30 47 51 4-7 48 lj g 51 51 48 50 48 qa 52 53 Averages and extremes for all data 1\ve 50. 11 51. 5 51.0 51.8 ~1.4 51.6 52. 5 51.8 51.5 51. 7 51.] 51. 8 52.J Max 69 7 'f 71 13 12 71 72 70 71 72 72 72 72 Min 29 30 28 30 29 ' 31 30 29 ' 29 29 29 30 30 Cases ]0 30 30 30 30 30 30 28 30 30 30 30 30 Averages and extremes f6c days with data from all stations having da~a foe this month Ave 51. 0 5 2. 1 51. 7 52.5 ~2.0 52.3 53.2 51. 0 52.2 52.4 52.0 52.4 52.9

  !-lax         69       11             71        73        72    71     72      70 '      71              72       72      72               72
  .[                                                                                                                                   .*

Min 29 30 28 30 29 31 30 29 29 29 29 30 30 Cases 28 28 28 28 28 28 28 28 28 28 28 28 28

                                                                     *   *----*' ~     :.___j             i
                                                                                                ---------.)     __j    ._I  :..__ .----1 ~- - - - - 1
          . .., --   r.*- - - .    - .            . -~ ----        .-*---          ,,-- __...,,    .. .-,           . --

Table 4. lE Palisades Network: Daily Maximum Temperatu~es (f) f oc- May 1977 DAY PO 1A P02 A l!OJ A POllA POSA P06A PO.IA POBA

  • 1:109A P10A PllA P12A PlJA 1 72 13 72 75 75 75 76 75 13 7q 75 74 76 2 65 65 65 64 64 66 68 65 65 65 62 63 65 3 73 73 71 72 70 72 71 13 72 72 -, 2 70 71 4 62 62 63 63 63 65 6J 63 62 63 63 62 65 5 75 76 77 11 78 78 79 11 77 77 78 71 79 6 67 13 69 71 74 74 75 70 68 13 75 73 76 1 59 60 59 59 60 61 64 60 58 59 59 59 62 8 58 59 55 58 58 60 61 56 55 57 58 57 60 9 50 53 48 48. 48 49 50 49 47 50 49 48 51 10 53 58 55 56 58 60 61 56 55 57 59 58 59 11 67 b7 67 69 69 69 70 69 67 67 69 69 70 12 73 73 72 74 73 73 13 73 72 73 74 73 74 13 75 79 79 81 81 81 81 79 80 80 81 80 82 14 66 72 72 71.l 78 79 83 72 71 74 76 77 81 15 87 89 84 86 84 84 83 85 83 87 86 84 84 16 85 91 87 88 89 88 88 87 87 89 88 87 88 17 86 91 88 88 88 86 87 88 87 89 89 86 86 18 80 86 BJ 83 82 8'3 83 83 81 8] 84 83 83 19 82 91 87 87 88 88 89 87 86 87 88 87 89 20 87 93 89 M 91 92 92 89 88 91 92 91 91 21 88 92 89 H 90 90 89 89 88 90 90 90 90 22 87 89 88 M 88 87 88 89 88 89 89 07 07 23 81! 91 86 H 86 85 87 87 85 88 88 85 tI 21l 80 87 82 l1 83 84 84 82 80 84 84 83 M 25 82 88 89 M 88 89 92 87 87 87 89 89 90 26 82 86 8.3 H 81 82 83 83 02 84 83 82 82 27 81 83 81 M 83 84 85 81 79 82 82 83 84 28 83 92 87 87 06 87 88 86 84 89 88 86 08 29 78 82 80 M 77 78 78 78 78 80 79 79 79 30 83 87 83 M 83 82 82 M 81 83 04 83 83 31 81 113 81 M 82 81 82 M 80 81 83 81 81 Averages and extremes for all data Ave 75.2 7B.8 76.5 73.0 77.4 77.8 78.5 - 76. 5 75.7 77.5 77.9 77.0 77.8 Max 88 93 89 88 91 92 92 89 88 91 92 91 91 Min 50 SJ 4B . 48 48 49 50 49 47 50 49 48 51 Cases 31 J1 31 20 31 31 31 29 31 31 Jl 31 29 Averages and extremes for days with data from all stations having data for this month Ave 70.9 74. 1 12.0 13.0 13.3 73.9 74.6 72.6 71.5 13.3 73.6 72.6 74.4 Max 87 n 88 88 89 88 89 88 87 89 89 87 89 O'I Min 50 53 48 40 40 49 50 49 47 50 49 48 51 I-'

Cases 20 20 20 20 20 20 20 20 20 20 ~o 20 20

Table IJ.2E Palisad.es Network: Daily Minimum Temperatures ( F) for May 1977 (J) l'...l DAY PO 1 A P0.2A P03A P04A POSA P06A P07A POSA P09A PlOA P11A P12A P13A 1 36 ,, 1 34 J7 )8 40 42 36 41 35 36 46 46 2 40 43 JU 39 42 44 45 38 41 39 38 45 47 3 46 46 JS 43 47 44 47 40 49 40 38 40 4U 4 50 51 51 50 50 51 50 50 51 50 51 50 51 5 50 59 59 59 .60 60 60 59 60 60 60 60 61 6 51 51 50 51 53 53 54 48 52 50 51 53 56 7 32 35 30 30 31 33 33 28 31 30 29 35 35 u 28 31 25 28 30 Jl 30 27 29 27 26 34 33 9 27 32 27 29 29 31 28 27 31 26 26 32 32 10 25 28 24 26 27 30 29 25 28 25 25 30 32 11 26 26 26 28 28 30 30 26 29 26 27 30 32 12 40 43 38 39 39 40 42 ]8 40 37 38 46 44 13 54 56 57. 57 57 55 56 58 57 57 58 58 59 14 52 56 52 52 53 50 51 50 51 52 51 55 56 15 52 Sit 55 54 51 53 57 54 56 5.2 52 57 55 16 55 . 57 58 59 59 57 59 56. 59 56 55 59 61 17 58 62 58 60 60 60 62 58 60 59 59 63 67 18 60 65 60 61 62 60 62 61 61 61 60 65 62 19 56 60 56 57 57 59 60 57 58 56 57 60 62 20 57 60* 57 M 58 60 60 56 58 56 57 61 62 21 58 61 57 M 58 f) 1 64 57 63 57 59 62 64 22 58 61

  • 59 M 61 65 68 60 65 59 62 64 64 23 60 64 58 H 60 63 65 59 63 59 60 63 l1 24 59 63 60 M 61 62 62 60 60 60 58 63 M 25 56 59 55 M 58 59 58 55 57 55 55 60 60 26 54 58 52 H 56 58 59 53 51 52 53 59 60 27 40 SJ 46 M 49 50 53 49 55 47 47 55 55 28 49 53 48 51 49 52 54 49 57 48 51 55 57 29 58 58 SU M 50 50 57 57 57 58. 58 57 60 30 59 58 Sb M 58 59 58 11 59 57 58 59 60 31 50 50 58 M 59 58 50 M 58 58 58 50 59 Avecages and extremes for all data Ave 49.0 51. 7 48.4 45.5 50.3 51.2 52.0 48.0 51. 4 48.5 48.8 53.0 53. 1 l1a x 60 65 60 61 62 65 68 61 65 61 62 65 67 Min 25 28 24 26 21 30 28 25 28 25 25 30 32 Cases 31 Jl 31 20 31 31 31 29 31 31 31 31 29 Averages and extremes for days with data fcom all stations having data for this month Ave 44.0 47.5 44.2 45.5 46. 1 46.6 47.5 44.J 1n.o 4LLJ 44.4 ,,9. 0 49.8 Max 60 65 60 61 62 60 62. 61 61 61 60 65 67 Min 25  :.rn 24 26 27 30 28 25 28 25 25 30 32

-**e~- - 20 20

                       *~ .-.--

20 20 20 L----* 20. 20 L-..: 20

                                                                      \_!

20

                                                                            '-..-.J  ._,

20 __j 20

                                                                                                     ;..__)

20:

                                                                                                               , ___J
                                                                                                                        *~
                                                                                                                         - ---*          i

__ J

Table 4.JE Palisdd~s Network:

                                                           --* .    .. ---~

Daily Average TemperatulC'e-s ( F)

                                                                                                   ,.._  .- .   *~

for May 1977 DAY P01A P02A P03A P04A POSA P06A P07A P08A P09A P10A P 11 A P12A P13A 1 58 60 58 59 60 61 62 59 61 59 59 61 63 2 55 56 55 56 57 58 50 56 56 56 55 57 58 3 60 59 58 59 59 60 59 59 59 59 59 58 60 4 57 57 58 57 57 58 58 57 58 50 50 57 59 5 65 66 67 67 68 67 68 61 67 67 68 67 69 6 59 62 61 62 63 63 64 61 62 63 63 63 65 7 48 48 47 47 48 50 51 47 47 47 47 49 51 8 44 ili7 43 44 45 46 46 43 44 44 43 LJ 6 47 9 40 42 30 39 39 40 40 39 40 39 39 40 41 10 40 43 40 42 42 45 44 41 42 41 42 44 46 11 48 50 48 49 50 51 51 48 49 49 49 52 52 12 58 62 59 56 59 58 60 57 58 57 58 61 61 13 64 67 67 69 69 67 68 68 68 69 70 69 69 14 59 63 62 64 65 64 67 61 63 63 63 66 67 15 69 71 71 71 70 70 70 69 71 71 71 71 71 16 72 75 75 76 74 74 75 73 75 74 75 75 75 17 71 75 13 74 73 13 74 73 73 74 74 74 75 11.1 69 74 13 73 73 72 72 72 72 73 13 73 13 19 68 73 70 71 72 73 75 70 71 71 71 13 74 20 72 77 74 H 75 76 76 13 75 74 74 76 77 21 71 74 72 H 72 74 76 71 73 72 73 74 75 22 72 75 75 M 75 76 77 74 76 75 75 76 76 23 72 77 74 M 74 74 76 74 75 75 75 75 M. 211 70 74 72 M 72 13 74 71 72 72 72 73 M 25 60 72 70 M 72 72 75 69 71 70 71 13 75 26 67 70 67 M 69 - 70 70 67 68 60 68 70 71 27 65 69 64 H 66 66 69 64 67 65 66 60 69 20 69 13 10 10 71 71 72 69 72 70 70 71 74 29 68 69 69 M 68 68 68 68 60 69 69 69 70 30 67 69 68 H 69 70 71 M 68 68 69 70 71 31 68 68 68 M 68 68 69 M 67 68 69 68 69 Averages and extcemes foe all data Ave 62.3 65. 1 63.4 60.3 64.3 64.8 6 5. tl 62.9 64.1 64.0 64.0 65.2 65.6 Max: 72 77 75 76 75 16 77 74 76 75 75 76 77 Min 40 42 38 39 39 40 40 39 40 39 39 40 41 Cases 31 31 31 20 31 31 31 29 31 31 J1 31 29 Averages and extremes for days with data from all stations having data for this month Ave 50.6 61. 2 59.7 60.3 60.7 61. 1 61.0 59.6 60.J 60.3 60.3 61.4 62.5 Max 72 75 75 76 74 74 75 13 75 74 75 75 75 ()) Min 40 42 38 39 39 40 40 39 40 39 39 40 41 w Cases 20 20 20 20 20 20 20 . 20 20 20 20 20 20

Table 4. 1F Palisades Network: Daily Maximum Temperatures ( F) for June 1977 O"I DAY PO 1A P02A P03A P04A POSA P06A P07A P08A P09A P10A P11A P 12A P13A 1 60 61 61 60 61 61 62 61 61 61 61 62 63 2 54 61 S4 56 54 57 59 55 54 56 56 55 57 3 65 74 68 69 69 70 71 68 67 68 70 68 70 4 85 90 87. H9 88 80 88 87 85 88 89 87 88 5 74 77 76 77 76 78 77 75 75 76 77 75 77 6 69 70 71 68 70 71 70 70 71 71 70 11 71 7 58 64 59 61 60 60 61 59 59 59 61 M 61 8 58 60 61 62 62 61 63 61 61 61 62 61 62 9 SJ 61 56 57 58 61 62 57 56 . 57 57 58 60

11) 65 . 67 61 68 66 67 67 67 67 66 66 66 67 11 6.9 71 70 71 70 69 68 71 69 71 70 69 70 12 61 62 62 64- 63 63 63 63 63 6.3 62 62 63 13 64 69 67 69 69 69 69 68 67 68 68 68 69 14 68 75 '7 3 74 75 75 77 71 72 13 74 75 76 15 71 81 76 79 79 79 81 77 76 79 78 79 81 16 84 89 87 89 87 86 86 87 87 88 88 86 87 17 84 89 87 88 87 87 87 87 87 80 as 86 88 18 72 77 75 77 76 78 78 75 75 75 76 76 77 19 78 81 78 80 77 79 78 78 77 78 79 78 79 20 71 76 69 69 69 69 70 68 67 69 69 67 69 21 10 78 70 72 13 73 74 72 71 73 75 73 75 22 8 () 85 79 83 81 81 81 02 80 81 82 82 81) 23 81 83 80 81 80 80 80 *81 79 82 82 81 81 24 M M 83 84 84 84 85 83 82 84 85 83 84 25 l'1 M 72 74 - 73 75 77 72 71 73 75 74 76 26 11 M 84 86 85 85 86 84 82 85 84 83 85 27 M M 88 88 87 88 88 88 88 89 89 87 87 28 11 11 86 88 06 86 86 88 86 88 87 85 87 29 74 81 75 77 75 76 77 76 76 76 76 76 77 30 73 74 73 74 73 73 73 74 74 74 73 73 73 Averages and extremes for all data Ave 69.6 74.2 7 3. 1 74.5 73.8 74.3 74.8 73.5 72.8 74.0 711. 3 711. 1 74. 7 Max 85 90 88 89 88 88 88 88 88 89 89 87 88
  • Min 53 60 54 56 54 57 59 55 54 56 56 55 57 Cases 25 :2 5 30 3\) 30 30 30 30 30 30 30 28 30 Averages and extremes for: days with data ft'OUI all stations having data for th is wont h Ave 70.2 74.9 11. a 73.3 72.5 73.0 73.5 72.2 71.6 72._ 7 7 3. u 72.3 73.4 Max 85 90 87 89 88 88 88 87 87 88 89 87 88 Hin Cases 53 23 l--*----

60

2]
                           '~---*~ -

54 23 56 23

                                             ~---~   '-*

54 23 57 23 59 23 L--....: 55 23

                                                                                   -~*

54 23 L___ _ j

                                                                                                   -~

56 23 56 23

                                                                                                                     *~.J 55 23'
                                                                                                                           ..__---1I
                                                                                                                                     ._j 57 23
                                                                                                                                             ~-----1 j
 **     Table 4.2F Palisades Network: Daily
  • Mi~imum Temperatures ( F) r** ---- .

foe June 1977 DAY PO 1 A P02A PO 3!1 P04A POSA P06A P07A P08A Pl}9A P10A P 11A P 12A P 13A 1 51 51 51 50 51 52 51 51 51 52 51 52 52 2 ll3 45 38 38 40 ll2 40 38 41 38 39 q4 44 3 36 36 32 34 35 36 31 33 38 32 33 38 39 4 44 48 42 45 44 46 52 43 52 42 44 49 52 5 63 64 63 66 63 63 64 63 62 61l 63 62 62 6 49 lj 8 ll8 46 46 1,5 45 46 46 48 48 M 47 1 42 44 42 40 41 40 37 ll1 40 41 40 M 44 8 40 Ll2 37 39 39 41 41 38 42 37 37 q3 46 9 37 39 36 34 39 38 39 36 38 35 34 41 41 10 ]3 35 32 34 35 37 37 32 35 32 32 38 40 11 54 55 55 55 55 55 56 56 55 56 55 55 56 12 48 52 51 52' 51 54 56 51 51 52 50 51 53 13 49 49 48 50 49 q9 49 49 50 50 49 49 50 14 49 52 44 46 50 50 51 47 50 46 46 53 54 15 44 4S 43 46 *45 Q7 47 43 46 43 43 48 50 16 51 53 50 53 51 54 57 50 53 50 50 55 58 17 61 64 6 ll 64 65 65 66 61 65 63 62 66 67 18 59 63 60 58 56 57 59 56 58 58 55 57 62 19 56 60 58 57 56 57 56 57 60 56 55 58 62 20 55 56 55 50 53 50 50 53 51, 55 50 55 55 21 47 51 42 44 46 44 44 43 46 43 43 49 51 22 45 47 42 46 45 45 45 42 46 43 44 48 50 23 50 52 48 51 49 51 53 47 51 48 49 54 55 24 M M 65 65 63 63 64 64 66 65 64 65 66 25 M H 52 55 56 55 55 50 54 52 52 60 59 26 11 M 46 so 50 50 51 46 50 47 47 54 53 27 M M 53 55 53 56 59 53 59 52 55 59 62 28 11 M 60 63 60 63 64 59 63 59 60 65 61 ' 2 C) 55 57 56 56 56 57 59 55 59 56 55 60 62

 ]0      55     56     53     56       56      57      59     54      61               54     55       62       63 Averages and extremes for all data Ave     40.6   50.6   48.Y   49.9     49.9    50.6    51. 4  48.6    51.4             49.0   48.7     53.2    54. 1 Max     63     64     65     66       65      65      66     64      66               65     64       66       67 Min     33     35     32     34       35      36      37     32      35               32     32       3B      39 Cases   25      25    30     30       30      30      30     30      30               30      39       28      30 Averages and extremes for days with   data from all stations having data for this month Ave     48.9   51. 0  47.0   40.9     49. 1   49.9    50.8   47.7    50.6             48;0    47.6    51.6    53.2 Max     6J     64     64     66       65      65      66     63      65               64     63       66       67 11 in   33     35     32     34       35      36      37     32      35               32     32       38       39   ())

Cases 23 23 23 23 23 23 23 23 23 23 23 23 23 Ul

Table 4.3F Palisads Network: Daily Average Temperatures ( F) foi- June 1977 (J'\ (J'\ . DAY P01A P02A P03A P04A P05A P06A P07A P08A P09A P10A P11A P12A P1JA 1 56 57 56 57 55 56 57 56 56 57 56 56 57 2 49 52 50 50 49 51 51 50 49 50 50 50 51 3 52 57 53 55 54 55 56 53 55 53 54 56 57 4 67 71 68 72 70 70 72 68 71 69 69 72 72 5 67 69 68 71 69 70 70 68 68 70 69 69 70 6 55 56 55 55 54 56 57 55 55 56 56 M 56 7 51 53 51 51 51 51 51 51 51 52 52 M 53 8 48 51 49 50 50 51 52 50 51 . 49 49 51 53 9 ~7 51 48 48 50 50 51 48 49 48 48 50 51 10 5 .2 54 53 54 54 55 56 53 54 53 53 55 56 11 61 63 62 63 62 62 62 63 62 63 62 62 63 12 54 56 56 58 58 59 60 ~i7 57 57 57 57 59

 , 3     56             58         57      58       58           59    60         58         58          59       58       58     bO 14     58             62         58      61       61           62    64        59          61          60       60       63     64 15      60             64         62      64       64           65    65         62         62          63       62       65     66 16     10             73         71      13      72            73    74        71          73          72       72       73     74 17      72             74         711     75      75            74    75        73          74          74       74      74      75 18     67             69         69      7u      70            70    71        69          69          69       69       7G     71 19      66             70         68      70      69            69    68         68         68          68       68      69      70 20     61             66         62      63      62            63    63         61         62          62       61       63     '64 21      59             63         58      59      60            59    59         58         60          59       59       61     63
 *22     62             65         61      63       62           63    63         61         62          61       62       64      65 23     67             68         66      67       67           67    68         66         67          67       66       68     70 24        11              M       73      74       73           73    74        73          73          74       73       73     75 25        M               M.      66      67      67            68    70         66         66          67       67       68     69 26       M               M       67      68       68           68    69         66         68          67       66       70     71 27        M               M       72      73       72           73    74        71          74          72       72      74      76 28       M               M       72.   . 73      72            72    73        72          73          73       72       73     75 29      67             68         67      68       67           68    68         67         68          68       68      68      70 3')    64             66         65      67       65           66. 67         65         67          66       65       66      68 Averages and extremes far all data Ave     59.5           62.2       62.0    63.2     62.6         63.J  64.0      61.9        62.7        62. 5    62.1     64.2   6 4. ti Max    72             74         74      75       75           74    75        73         *74          74       74       74     76 Min     47             51         48      48       49           50    51         48         49          48       48       50     51 Cases   25             25         30      30      30            30    30         30         30          JO       30       28      30 Averages and extremes for days wit.h              data fi-om all      stations having data              for this month Ave    6 v. 1         62.9       61. J   62.3    61. 8         62.4  63.2      61.0        61. 8       61. 6    61.3*    62.6   63.9 Max     72             711        74      75       75           74    75        73          74          74       74       74     75 11 in Cases 47 23 51
                        .i 3 48 23 48 23
                                                ~--

49 23 50. 23 51 23 48 23

                                                                              \ _____ j _, __

49 23 _] L __ 1 48 23

                                                                                                            *-j 48 23*

50 23

_J
                                                                                                                                ._j 51 23

Table 4. lG Palisades Network: Daily Maximum Temperatures (F)

                                                                                        ~-

for

                                                                                                            )

July 1977 DAY PO 11\ P02A PO 31\ P04A POSA P06A P07A P08A P09.\ PlOA P11A P12A P13A 1 75 78 74 74 74 75 76 73 73 74 74 73 75 2 78 8) 80 Ul 80 19 80 79 80 ao 80. 79 80 3 79 85 84 05 84 83 83 84 82 84 84 83 84 4 88 93 91 91 93 92 . 92 91 92 92 93 91 92 5 89 94 92 91 92 91 93 91 92 93 93 H 92 6 81 92 91 91 92 92 93 89 91 92 92 I'! 93 7 11 86 81 80 81 BJ 84 80 81 81 82 H 82 8 A2 88 85 86 87 86 87 85 86 87 87 M 87 9 81 85 82 80 80 83 83 81 79 8() 81 M 80 10 86 88 87 84 84 86 83 85 83 86 86 ~ 84 11 80 82 78 80 81 81 78 81 81 83 82 M 80 12 84 81 85 86* 87 86 87 86 85 86 87 H 87 13 78 85 81 80 02 81 82 81 80 81 82 82 82 14 92 97 94 94 94 92 92 94 94 97 95 94 92 15 83 91 86 86 87 89 91 86 86 87 89 88 89 16 80 82 81 82 82 82 84 81 82 82 8] 83 84 17 82 ea M 85 86 87 88 84 84 84 86 87 86 18 80 e2 82 82 82 82 84 92 82 83 83 M 83 19 88 93 91 91 94 91 94 M 91 92 93 M 93 20 87 92 90 90. 92 91 92 91 90 91 92 M 91 21 78 83 81 80 82 82 82 80 80 82 82 11 81 22 83 88 83 84 04 85 85 83 83 83 85 11 85 23 79 88 80 81 83 83 87 82 81 82 83 M 84 24 78 79 78 78 79 79 80 79 79 78 80 H 00 25 74 78 74 13 76 74 77 75 75 76 75 M 75 26 73 81 72 72 72 72 74 72 71 72 7 't M 70 27 71 80 M 74 75 78 78 74 73 74 76 M 75 28 79 82 77 79 80 81 82 78 80 80 80 M 82 29 75 78 76 77 77 77 77 75 75 77 *77 M 76 JO 79 88 84 85 t:l7 86 87 86 86 87 86 M 87 11 80 84 82 83 84 83 83 01 82 83 84 M 82 Averages and extre~es for all data Ave 80.8 85.8 82.8 82.7 83.6 83.6 84.5 82.3 82.5 83.!) 84.1 84. 4 83.6 Max 92 97 94 94 94 92 94 94 94 97 q5 94 93 Min 71 78 72 72 72 72 74 72 71 72 74 73 70 Cases 31 31 29 31 31 31 31 30 31 31 31 9 31 l\verages and extremes for days with data from all stations having data for this month Ave 0 1. 6 86.8 83.9 84. 1 84.5 84. 1 85.0 83.6 83.6 84.6 85.0 8 4. 1 84.8 Max 92 97 94 94 94 92 92 94 94 97 95 94 92 (j\

                                                                                                                            -....)

Min 75 78 74 74 74 75 . 76 73 73 74 74 73 75 Cases 0 8 8 8 8 0 8 8 8 8 8 a a

Table 4.2G Palisades Network: Daily Minimum Temperatures (F) fOI" July 1977 O'I co DAY  !?O 1A P02A P03A P04A POSA P06A P07A P08A P09A P10A P 11A P12A P13A 1 60 61 61 59 60 58 55 60 61 63 60 60 60 2 50 ~2 48 49 49 50 49 48 50 48 47 53 54

 ]      51           54              51          511        54              57      61            52        58           51       54         58       59 4      13           76              76          75         76              76      76            74        77           75        74        76       77 5      68           72              68          68         68              69      72            67        71           67        68          M      72 6      71           13              70          70         70              70      11            69        73           70       69            H     74 1      65           66              67          63         64              63      64            64        66           65        64          M      65 8      63           64              64          61         62              61      62            61        64           62       59           M      63 9      60           61              57          58         59              60      61            58        60         ;:59        se          M      63 10       62           1              61          59         61              62      61             58       62           58        58           I'!   62 11       64           E4              65          63         65              64      64            64        65           65       64           M      65 12       66.          67              67          67         64              65      67            65        66           68       66           M      68 13       54           ~5              52          53         54              51,     55            51        54           54        52        58       50 14       56           57              52          54         54              54      57            53        58           53       52         59       60 15       70           74              72          72         72              73      73            70        72           73       71         74       74 16       67           69              70          70         71              69      71            67        70           68       68         71       71 17       66           69                M         69         69              69      69            67        69           68       68         70       69 18       68           69              6 t1        70         68              68      69            68        69           69       68            11    70 19       70           74              75          72         75              75      74              M       75           75       73           M      76 20       75           77              78          77         1B              71      75            11        78        . '79        77           f!    74 21       64           65              62          62         65              62      64            61        65           61       64           H      65 22       58           57              53          55         55              54      58            55        58           55       57           M      58 23       51           52              48          51         51              SJ      53            .50       53           50        51          ff     56 24       56           58              55          55         57              57      59            54        59           55       55           M      61 25       52           !: 5            51          49         55              54      56            48        52           49       50           M      58 26       45           49              41          42         48              47      46             42       115          42        43          M      52 27       43           46                M         42         44              44      44            41        44           41       42           11     45 28       49           51              47          so         51              52      55             48.      52         .40         50          l'I    55 29       60           62              58          61         61              61      62            60        62           61       60           M      62 30       56           ~7              57          59         58              60      61            56       *59           58       59           l'I    60 31       67           67              68          67         67              68      65            68        68           70       68           M      67 Averages and extremes for all data l\ve     60.6         62.4            60.8        60.5       61. 5           61 ~ 3  62.2          59.2      62.4         60.6     60.3       64.3     63.6 Max      75           '11             78          77         78              76      76            77        78           79       11         76       77 Min      43           46              41          42         44              44      44             41       44           41        42        53       45 Cases    31           31              29          31         31              31      31            30        31           31        31          9      31 Averages and extremes for days with                          data from all stations having data for this month 61~4 8.

Ave 60. 1 ~2.3 60.3 60.8 61. 3 62. 1 5.9. 4 62.5 60.6 59.8 63. 6 64.1 .s _ Max Min 73 50 8 76 52 8 76 48 8 75 49 8 i . _ _ ___ L_ __ 76 49 8 (__ ____ ~ 76 50 76 49 8

                                                                                    ~--- -*-* -

74 48 8 1_ _ _ .1 71 50 i_~ 8 [____ _j 75 48 8 __1

                                                                                                                               /

74 47 8

                                                                                                                                    ;__ __)

76 53 8 _, __J

                                                                                                                                                    .877 54
. 'I able 4.3G Palisades Networ:k: Daily Aver:age Temper:atur:es (F) for:

July 1977 DAY PO 1A P02l\ P03A P04A POSA P06A P07A

  • P08A P09A PlOA P11A P12A P13A 1 67 E9 69 68 68 60 68 68 68 68 68 67 ~8 2 65 68 66 66 67 67 67 65 66 66 66 67 68 3 68 72 71 71 71 72 72 70 72 71 71 72 73 4 80 82 82 83 84 82 82 82 82 82 83 82 84 5 78 82 81 80 81 81 82 80 81 81 80 M 82 6 00 82 82 83 83 82 83 81 83 83 83 H 84 7 71 75 7q 73 75 75 76 73 75 75 75 M 76 8 71 73 72 71 72 72 72 72 13 73 72 e 72 CJ 70 72 70 () 9 71 71 71 69 70 70 70 M 72 10 73 74 74 72 13 73 72 72 73 73 73 M 74 11 71 71 71 70 71 71 71 70 72 72 71 M 12 12 74 77 76 76 77 76 77 76 11 77 76 77 13 14 67 75 71 78 68 76 68 76 69 76 68 75 70 77 67 76 68 77 69 77 68 76 71 78 71
                                                                                                                 ~.8 15         79      8]        82     81      02      81       83       80      81        82         81     82      83 16         74      76        76     75      76      75       76       75      76        76         75     76      77 17         73      76         M     76      75      76       76       75      75        76         75     77      76 18         73      75        75     75      75      76       76       75      76        76         75      M      7.6 1 CJ       80      84        84     83      84       aj      84        M      84        84         84      M      84 20         80      83        83     83      84      81       84       83      83        84         84      M      83 21         73      76        74     74      75      75       76       75      75        75         75. M      75 22         69      72        69     69      71      71       71       70      70        70         71      M      72 23         67      70        67     67      69      69       71       67    0 69        67         68      M      11 2 '*       68      70        69     69      70      70       71       69      71        70         10      M      71 25         69      71        69     67      70      69       71       69      69        69         69      M      JO 26         60      6 It      58     59      61      61       61       58      60        59         59      M      6:2 27         59      64         M     61      62      62       63       59      61        60         61      M      63 28         64      68        65     67      67      60       70       66      68        67         67      H      69 29         66      69        66     68      68      60.      69       67      68        ()8        68      M     ,6,9 30         68      73        71     72      73      73       74       72      72        73         73      H      7.3 31         72      75        74     74      75      75       75       74      74        75         75      M      1:4 Averages and extremes for all data Ave        7 1. 1  74.0      72.9   12.4    73.J    7 3. 1   74.0     71. 7   73. 2     13. 1      72. 9  74.7    7.4. 2 Max        80      sq        84     83      84      83       84       83      84        84         84     82      84 Min        59      6 [J      58     59      61      61       61       58      60        59         59     67      6,2 Cases      31      ]1        29     31      31       31      31       30      31        31         31      9      3:1 Aver:ages and extremes f ot: days with      data fr:om all   stations having data       for this month Ave        71.6    71,. 8    73.7   73.6    74.0    73.5     74.4     72.8    73.7      73.9       73.5   74.5    75.2 Max        00      83        82     83      84      02       83       82      82        82         83     82      84     m IJ)

Min 65 68 66. 66 67 6 ., 67 65 66 66 66 67 6.8 Cases A B 8 8 8 B 8 8 8 8 8 8 0

                                                                                                                                                                              -..]

0 Table 4.1H Palisad~s Netwo~k: Daily i1aximum Temperatures ( F) for l'\u9ust 1977 DAY PO 1A P02A PO 31\ PO 4A P\) 5 A P:) 6A P07A P08A P*)9A PlO A.. P11A p 1 21\ P13A 1 74 82 75 76 78 77 77 75 76 78 78 M 77 2 75 78 76 77 78 7U 80 7B 78 77 77 M 79 3 76 84 18 dO dO Al 81 79 79 79 80 11 81 4 85 89 88 87 88 87 88 88 88 8() 89 ~I 88 5 1a 82 82 84 ti 4 84 83 83 82 82 84 M 13 4 6 7 'i 79 77 77 78 78 78 78 78 78 77 M 79 7 76 80 79 79 BO 7 ') 81 BO 8() 81 'J 2 i1 81 8 74 78 77 76 74 77 77 76 76 78 76 g M 76 76 77 77 76 75 76 76 77 M 77 77 M 76 1 i) 79 84 79 79 d1 82 81 80 M 81 82 80 81 11 71 71 70 6':.l 68 68 67 70 M 69 68 68 68 12 73 75 73 74 74 74 74 74 13 7 ') M 82 79 80 71 81 73 82 72 81 73 81 74 82 73 11 M M 74 81 72 74 83 73 72 8 i) M 74 82 74 15 M 83 79 80 80 80 80 Bl 11 ~2 83 M 81 16 M 79 78 80 bO Bu 80 80 r1 79 80 t1 80 17 75 79 M 72 72 73 72 72 70 7] 73 12 72 18 71 77 7{) 6.8 68 68 68 69 66 69 70 66 68 19 72 76 71 71 71 70 71 71 70 72 71 68 71 2.) 75 75 73 74 71 73 71 73 71 7 il 74 7 i) 71 21 68 68 r~ 68 6B 68 68 67 67 68 67 11 68 22 72 76 74 76 76 75 75 76 75 75 77 11 76 23 72 74 72 72 70 71 71 72 71 73 73 M 72 24 7'J 75 69 70 69 69 7Q 70 68 70 69 69 69 25 74 77 75 76 74 77 76 76 75 76 77 13 75 26 84 86 85 us 84 84 85 85 84 85 86 84 84 27 91 92 90 91 89 90 91 91 90 92 91 8A 91 2 ll BB 91 89 89 8B 88 9) 9 () 89 9] 89 86 89 29 72 76 75 74 74 75 75 73 72 74 73 M 74 30 74 81 77 78 7 l) 79 79 78 11 7 ') 80 l1 SJ 31 87 89 BB d9 89 88 89 q () 88 89 90 87 89 Avcraqes and extremes for all data Ave 76.3 79. 8 77.5 77. 5 77.2 77. 5 77. 7 77.6 77.0 77.9 78.2 7 5. 9 77.7 Max 91 92 90 91 89 90 91 g1 90 92 91 BB 91 Min 6B 68 69 08 6 t1 68 67 67 66 68 67 66 68 Cases 2 fl J1 29 31 31 31 31 31 22 J1 31 14 31 Averages and extremes for day~ witt data from all stations having data for this month Ave 7CJ.1 82.0 78.9 7 9. '2 7 8. 1 78. 6 79. 0 19. 4 77.9 7 9. 7 79. 7 76. 8 78. 6 Max 91 92 9,') 91 89 90 91 91 90 92 91

. 70 75 69 68 6H 69 66 69 69 88 *
68. 68 66
     .s g

s--- -- -- - *-*-- -- *-*----

                                                                          "j     - . , 9 ,__ _J   <__ ,.. -  ___J L___j    [____ Jg ~--; g _ _j     : .. -*--~)
                                                                                                                                                                    *-.J __;
  • 1'ablP- 4.211 Palisades tktwoi::k:

Daily

                                                            ~1n1mum    ~empe~atures   ( F) for       Aug II St    1977 D.a.¥    p J 1 )\ P*12A   PO 3 l\  P04~   P05,\          P06~    p () 7 Ii. PO 8A  P09\     P 1 O/l     p 111\. P12A       P1J A 1       51,      57      53       5J      55            54      54         '.12  54        54           53           M       59 2        51       53      49       52      52            54      5J         49     54       50           51            11     57 3        61       61      S9       bu      bO            60      62         59    62        6)           59           !1      62 4        65       68      68       68      [; (i         65
   ,-::>    66       () 8    68       67 66         68     6"8      69           66            M      69 6        69       7 ()

67 66 67 67 67 68 66 ilJ 68 69 7J 70 69 70 69 70 70 69 i'l 71 7 68 69 68 (j 7 67 68 70 69 69 68 67 - 11 71 8 65 68 65 64 65 65 67 6 4. 67 66 64 ~ 66 l) 62 63 60 61 60 62 65 6J M 61 61 [1 63 10 67 66 63 0 ij 64 64 64 63 11 64 63 66 67 11 50 61 54 52 52 53 54 53 51 M 51) 54 56 12 54 54 51 51 4~ 49 51 52 M 51 40 52 53 13 53 SJ 4<:l 52 51 55 58 51 H 49 51 56 58 111 11 54 51 5J 53 SJ 53 51 M 51 51 M 56 15 M 50 45 47 48 48 51 46 ,_46 M 46 M 52 16 M 66 -66 66 65 66 65 66 61 66 17 i1 M 67 51 52 M 47 48 49 49 46 48 49 48 5,) 18 50 46 46 41 4J 41~ 45 43 42 44 43 41 46 48 19 I!) 43 39 4v 4 () 41 41 39 43 4J 19 43 45 20 53 51 46 50 49 50 52 47 53 1+8 49 -51 52 21 58 57 M 56 55 55 58 57 57 5G 55 M 59 22 56 57 51 52 51 51 52 52 52 53 51 M 53 23 57 57 57 56 56 56 57 57 56 57 56 21~ 4g M 58 52 45 45 46 46 48 45 49 45 44 49 49 L5 47 46 40 44 4 i 43 45 42 47 4J 42 46 48 26 57 57 53 57 57 57 58 57 58 53 57 57 58 27 71 71 74 73 73 73 74 72 73 72 111 73 74 28 69 68 69 69 6B 69 71 69 68 69

                                             ,.. ,.                                                       68         6B         71 29         5 ti      56     52       53      :JO           55      55         52     54       53          52                    58 M

30 50 50 1rn 48 48 50 51 47 n 4B 47 M 54 31 6J 61 59 64 60 64 66 61 65 59 62 65 65 Averaqes and extremes for all ddtd -~ ve 57.8 58. 1 5 5. fj 56.3 Sf\.\i 56.6 57. 7 55._6 58. 1 5 6. {) 5 5. _] ') 5. 4 5 g. 3 Mu x 71 71 74 13 73 73 74 72 73 74 72 73 74 Min 43 4J 39 4 ll 40 41 41 39 43 40 39 43 45 Cases 2a 31 2 ') 31 J1 J1 31 31 22 31 31 14 31 Averc1qes and extremes for dilys with data from all stiitior1s having data for this month !\ve 55.3 Sil. 7 52.3 53. 9 53. 1 5 4. 2 55.3 52.7 55.6 52.1 5 2. 7 5 5. 3 56.7 ('!Cl x 71 71 74 73 73 73 74 72 73 74 72 73 74 Min 43 43 39 4U 40 41 41 39 43 40 39 43 45 -J Cases 9 I-' 9 9 9 9 9 9 9 9 9 9 9 9

Table 4.3H Palisades Hetwo~K: Daily Average Temperatures ( I") for Auqust 1977 -.) N DhY PO 1 !\ P02A P03l\ Pd llA PO 5 A P06A P07h P03A P09A I? 1 OA P 11 A P12A P13A 1 67 7*.) 68 68 69 68 f, 7 67 69 69 68 M 69 2 64 67 65 06 67 66 6H 65 68 66 65 11 69

   ]     69      72     71         72          71          71              71     7 {)      71             71             70                H      73 4     72      75     75         75          74          73              74     75        75              76            74                 I"!   75 71      72     72         7 L.        72          72              72     73        72            73             72                 l1     73 6

5 71 72 72 72 72 72 73 ., ) 72 73 72  ;'1 73 7 72 71! 74 74 74 74 75 73 71! 74 74 i'I 75 B 71 7] 73 73 72 72 74 72 73 74 72 ,'! 73 g 69 7J 69 69 69 7J 71 70 M 7J 70 M 70 10 11 72 64 74 65 72 611 72 62 73 63 74 63

                                                                       . 73 63 73 64 M

M 13 63 73 62 12 63 74 64 12 65 66 65 b3 63 62 63 65 '.1 63 62 63 65 13 68 68 66 67 68 69 70 68 M 61 68 6q 70 14 !1 6B 65 1:.10 66 66 66 66 M 66 66 !1 67 15 M 6B 65 66 b6 66 67 66 M 65 66 M 67 16 M 72 72 72 72 72 72 12 f'l 72 72  !:1 72 17 66 68 11 65 li 4 64 63 65 65 66 65 fi 4 65 18 58 60 56 56 57 57 56 56 56 57 57 57 59 19 59 60 57 57 57 57 57 57 58 57 56 58 59 20 64 64 62 63 62 62 62 62 62 63 62 62 63 21 63 63 '.'1 b3 63 62 63 63 63 63 62 M 63 22 67 68 67 67 66 65 65 67 61 67 66 f1 67 23 66 66 66 66 65 66 fi 6 66 66 67 66 M 66 24 60 61 58. Su 58 59 59 59 SB 58 57 5':l 60 25 61 62 59 6G 60 60 62 6 i) 62 6 t) 60 61 62 26 7J 71 71 71 70 7J 71 70 70 71 70 70 71 27 80 81 '82 82 81 31 82 82 82 83 02 81 83 28 78 78 79 79 18 18 79 7B 78 1 '1 7d 77 79 29 67 68 67 67 67 67 68 67 67 6 7. 66 M 68 30 63 66 64 64 65 65* 66 63 ""! 64 65 N 67 31 74 75 75 76 75 76 77 75 76 74 75 76 77 Averages 1nrl extremes for all dat~ Ave 67.5 68.9 6 7. ') 67.8 67.7 67.7 6fL2 67.7 68.4 68.2 67.5 66. 5 69.1 '.-!d x ao 81 82 B2 U1 d1 82 82 82 83 82 81 83 Min 58 60 56 56 57 57 56 56 '16 57 56 57 59 Cases 28 31 29 J1 31 31 .31 31 22 31 31 14 31 Averages and extremes for days with data from all stations having data foe this month Ave 67.1 68.0 66.5 66. ':) 66.4 66.7 67.3 6 6. ii 66.9 -*66. 8 66.J 66. 7 6 8. 2 Max 80 81 02 1:12 81 01 82 82 82 83 82 81 83 Min 58 6 () 56 56 57 57 56 56 56 57 56 5_7 59 g* g Cases 9 9 9 9 9 9 9 9 9 9 9 I L..-- I L---- '---*- *--* -- :__,__J L_j *- __._. ' _ __1

                                                                                                                            * - * - --1

____ __) __,

.i -- .-- -* Table 4.11 Palisades U0twork: Uaily 1aximum Temperatures ( F) for

                                                                                                                      )

Septe:nbe:::- 1977 i *. I nI\ Y PO 1A. P02A P03A t'U4A fl05A PJ6A P 07 A PORA P09Fl P10A P11A p 1 2 i\ P13A 1 74 77 77 76 77 78 7'.J 1a 78 76 78 77 78 2 75 77 76 76 77 78 77 77 77 77 78 77 77 3 75 80 76 75 76 76 77 76 75 75 77 76 76 4 79 81 M 82 81 81 82 83 81 81 83 82 82 5 7') 75 t1 7U 72 71 72 73 l1 71 72 73 72 6 79 80 76 11 78 77 76 78 r1 79 79 78 77 7 75 79 71! 74 76 76 76 74 M 76 76 76 76 8 76 79 77 76 77 17 77 76 11 78 79 78 78 9 77 79 M 75 77 77 76 76 11 76 78 76 76 10 67 75 67 66 66 66 66 f, 7 t-l 68 68 68 66 11 7] 77 11 73 73 73 74 72 M 73 75 74 74 12 66 67 66 66 66 67 66 67 r1 67 68 68 67 1 _3 63 61 61 60 61 61

  • 61 6J £1 62 62 61 61 14 68 71 68 68 70 71 70 69 67 69 70 69 69 15 61 59 60 60 59 6J 60 59 59 61 60 59 60 16 12 71 71 72 72 72 73 71 70 72 73 72 13 17 75 75 75 76 75 76 75 76 75 76 78 76 76 1B 73 73 73 74 74 75 75 73 73 74 7 fi 75 74 19 7:) 7,J 71 71 69 70 71 7 CJ 71 70 71 71 71 2 l) 65 64 64 63 62 63 63 63 63 63 64 64 63 21 61 65 6;} 61 63 63 63 62 61 62 63 62 63 22 71 72 69 70 70 71 69 70 69 71 73 69 71 23 67 64 64 64 65 65 65 65 64 65 65 65 65 24 70 . 12 71 ['l 73 73 74 72 71 72 74 74 73 25 74 73 74 tl 73 73 73 74 73 75 76 74 7 (i 26 71 71 70 M 69 70 70 71 69 70 71 7 l) 70 27 63 64 64 l1 62 63 61 62 63 64 64 63 62 2B 67 70 63 G3 63 64 I) 4 63 61 65 66 64 64 29 67 67 65 65 65 67 66 66 65 67 68 66 65 JO 64 63 63 64 64 64 63 63 63 64 65 65 64 Averages and extremes for all data Ave 70.3 71. 8 69.u b 9. (j 70.2 70. 6 70.5 7 i). 2 69. 0 70 .. 6 71. 7 7 ;). 7 7<). 6 Max 79 81 77 82 81 81 B2 83 81 B1 33 82 82 Min 61 59 60 60 ~9 6;) 60 59 59 61 60 59 60 cases JO 30 26 26 3u 30 30 30 21 30 30 JO 30

.!\veraqe'.> and extrem~s for days with Jata rrom all stations having ddta for thl~; month Ave 6 9. 1 70.0 68.4 ti tl. 6 &B.8 6 9. 6 69. 4 68.n 68.2 6 <}. 2 70.3 6 9. 2 69. 3

                                                                                                                                                              -...)

Max 75 80 77 76 77 78 79 78 78 77 78 77 78 w Min 61 59 60 bU 59 60 6:) 59 59 61 60 59 6J c,tses 16 16 16 16 16 16 16 16 16 16 16 16 16 I

                                                                                                                                                               -J
                                                                                                                                                               ~

Table 4.2I Palisades Network: Oaily Miuimum Temperatures (F) for September 197 D /\ y PO 1 A P02A POJA P04A P0 5 A P06A P07A PORA P 09A ?10A P 11A P12A P13A 1 67 66 67 bb 6r::.) 65 66 (j 6 66 66 65 68 66 2 64* 63 64 62 60 6,. 64 63 62 63 59 62 62 3 58 58 57 S7 57 56 57 57 58 57 58 58 58 4 60 59 M 59 60 60 61 59 60 58 59 61 61 5 56 58 !1 52 54 53 55 5.1 l1 52 51 59 56 6 52 53 46 48 50 49 51 48 i1 47 47 53 52 7 58 58 55 55 57 56 56 55 M 56 56 6*) 59 a 60 58 55 52 5 ti 54 54 54 ;1 55 53 60 58 9 62 65 f1 65 65 63 64 65 M 65 65 66 65 10 49 50 44 46 47 47 47 45 11 46 46 51 49 11 12 50 I~ 9 50 M LJ.5 45 43 ljlJ 46 M 46 45 Su 46 49 45 49 40 49 54 47 M 45 49 54 54 13 57 57 56 56 56 56 55 56 M 57 58 57 58 14 46 lJ 6 39 4 (J 43 41 42 39 42 40 40 47 46 15 52 52 48 51 52 52 53 49 53 50 52 54 54 16 61 59 60 6 () 59 60 60 59 59 61 60 59 6 () 17 62 60 60 60 ()0 61 61 59 61' 6.) 61 62 62 18 64 64 63 64 63 64 65 i) 2 64 63 65 66 66 1 !) 65 64 64 63 62 .62 62 63 63 63 64 6 ,, 63 2l) 55 55 5 Ll 54 5 It 53 53 54 53 '55 55 55 54 21 53 53 53 52 52 52 53 53 52 54 54 54 53 22 55 55 53 54 54 5 IJ 55 54 54 54 54 55 56 23 58 56 53 52 52 53 53 53 53 53 52 55 54 24 56 57 53 M 56 55 5B 53 57 54 54 60 59 25 52 511 51 M 54 56 56 50 55 51) 52 55 57 26 5 t1 60 59 a 56 56 57 56 57 58 58 59 59 27 fi,) 58 58 i1 56 52 49 58 59 59 58 59 53 2 fl 1.n 46 42 44 43 44 44 *42 4 IJ 43 43 47 46 29 45 /J 5 4ii 42 42 43 112 40 43 40 42 46 46 30 57 57 56 57 56 57 .57 56 56 55 57 58 57

 ~veraqes       anrl extremes for all ddtd Ave         56.3       56.2    53.7   54. J     54. 5        54.?    54.9       53. 8        55.8             54. 2           54.4          s 7. 1      56.3 Mil x       67         66      67     6 (j      65           65      66         f;  6        66               66              65            68          66 i1 in       45        4 ')     39     40        42           lj 1    42        39            42               lj !)           40            46          46 C11ses       31)        30      26     .i 6      30           30      JO        30            21               30              30           30           3 ()
 !\.V(~ra9cs and extremes for ddys with data               from all stdtions having diit:1                     for this month Ave          '>6. 8    5 (). 2  54.b   5 4. tj   5 4. fi      54. 9   55. 4     5 4. 3                         54. a

.cs_ 55.2 55.1 5 6. 9 56. 4

!1 ax:       b7        66       67     66        65           65      6 f)      66           66               66              65            fi 8         66
~ti Il       115       45      39      4 CJ      42           41      42        39           112              4:)             40             46 1~*                                                                                   -~

16 16 16 16 16 16 16 16 16 16 16

                   --  '------       ~-       --         --*
...__~*

____ __) - ___ _j -_ _j ___ ___) '

  • ** ~ i Table 4. JI ra lis.1.des Network:.: Daily Average Temper::i. tures ( f) for Sep tern her 1977 DAY Pll11\ P02A POJ I\ J:>v4A P05A PO 6A P07A POSA P 1)9A p 10 !\ P11A l? 1 2 ~ P13A 1 71 72 71 71 72 71 73 72 72 72 72 72 72 2 70 70 70 70 70 70 70 70 70 7'.) 70 71 71 3 65 67 65 64 b5 65 66 65 65 64 65 65 66 4 69 71 M 7 iJ 71 70 71 70 71 7 ') 71 71 71 5 67 69 M b6 67 67 68 68  !'1 67 66 68 6A 6 64 64 60 61 b3 62 63 61 M 62 61 64 63 7 66 66 65 64 65 64 65 65 M 64 65 66 66 8 66 66 65 65 66 66 66 65 M 66 66 67 67 9 70 71 M 70 70 69 71) 69 f1 70 71 71 70 1\) 61 64 60 61 61 61 6:) 61 M 62 62 62 61 11 61 64 r1 58 59 58 59 58 M 60 60 61 60 12 58 59 57 58 57 58 59 57 !1 57 59 6J 60 1] 61 59 59 59 58 59 5q 59 M 60 60 60 60 14 58 59 56 55 57 56 57 55 57 56 57 59 58 15 57 55 55 55 55 56 56 55 55 56 56 56 57 16 66 65 65 65 65 66 67 65 65 66 67 66 66 17 68 67 67 67 67 67 6B 66 67 67 69 68 68 18 69 68 69 69 68 69 70 68 69 69 70 69 70 19 68 67 67 66 66 66 67 66 66 66 67 67 67 20 58 58 57 56 56 56 57 57 56 57 58 58 $7 21 57 57 56 56 57 57 58 57 56 57 57 57 57 22 63 62 61 01 61 61 62 61 61 62 63 62 62 23 63 62 61 61 b 1 60 61 {i 1 61 62 62 62 61 24 65 65 64 M 65 65 66 65 64 65 65 67 66

~5 63 63 62 i'l 63 64 64 62 64 63 63 64 65 26 65 65 65 11 64 64 64 64 64 65 65 65 64 27 61 61 61 c'l 59 59 57 60 59 61 61 61 59 2B 6J 61 58 50 5£1 58 57 58 57 59 59 59 59 29 55 55 54 54 54 55 54 54 55 54 55 56 56

rn 61) 59 59 bu 59 59 59 59 59 59 60 60 60 A verayes and extremes for all datd

!\.ve 63.4 63.7 62.0 o2.4 62.6 62. 6 63.') 62.4 62.6 6 2. 9 63.4 63 .. 8 63.6 f1 it x 71 72 71 71 72 71 73 72 72 72 72 72 72 Min 55 55 54 54 54 55 54 54 55 54 55 56 56 Cases 3*) 3i) 26 26 3\.1 JJ 31) 30 21 3) ]t) 30 30 Av P.r ages and extremes for days .with uata from all stations having data for this month ri.ve 63. i) 62.7 62.J 6 1. ti 61. 9 6 2. 1 62.5 61.7 62. ') 62.3 62.9 6 3. 0 63.0 '1a x 71 72 71 71 72 71 73 72 72 72 72 72 72 Ul i1 i II 55 55 54 54 s ii 55 54 54 55 54 55 56 56 Ci1S8S 16 16 16 16 Hi 16 16 16 16 16 16 16 16

                                                                                                                                          -..J Table 4. 1J Pali sades Network:       Daily Maximum Temper'.l tuces. {F)           fO["       Octo bei:-- 19 77                  (J\

DAY PO 1A PO 2A P03l\ PL: 4A P05A P06A P07A pQ 8A P09A P1}A P11A P12l\. P1J11. 1 58 58 57 57 50 SU 57 56 56 58 58 58 58 2 59 62 59 58 58 59 58 58 55 59 59 58 59

   ]       58           66    60    60        60           61      62     61          58           61         62        60        60 4       63           65    63     64       63           66      65     64          62         . 6J         65        63        64 5       60           64    61     62       62           61      61     61          60           62         63        61        62 6       56           63    57     57       56           57      56     57          55           58         58        55        57 7       52           53    53     53       52           53      53     52          52           53         53        52        52 8       63           63    63     64       63           64      6IJ    62          63           63         64        63        62 g       53           5 .3  52     52       51           51      51     52          51           52         52        50        51 10        63           66    63     63       63           64      6]     64          62           65         65        62        64 11         53           511   54     54       Si+          53      53     54          53           54         55        53        55 12        48           51   .47     48       47           48      47     49          46           ll 8       49        48        48 13        51,          59    54     56         M          58      57     57          55           56         58        56        57 14        58           61    60     61         M        . 65      64     61          60           61         62        61        62 15        54           56    54     55         M          55      56     56          53           55         55        54        55 16        44           49    46     46         M          49      48     47          45           47         47        47        47 17         50           6'3   60    60          M          61      61     63          5<)          62         62        61        60.

18 53 56 55 53 M 52 50 55 53 511 54 53 53 19 54 58 55 55 55 56 56 57 5] 55 55 55 56 2:) 56 60 59 61 61 62 62 61 59 60 62 62 62 21 69 73 70 70 71 71 71 72 70 72 73 71 71 22 54 57 56 57 56 57 54 57 . 511 57 56 57 56 23 52 51 51 51 50 52 50 52 49 51 52 51 51 211 71 76 73 72 72 73 72 74 71 74 74 72 72 25 6 ll 66 65 65 64 65 65 66 64 66 65 65 65 26 56 59 58 59 57 57 58 57 57 58 58 58 59 27 511 59 56 59 60 62 62 58 56 SU 60 59 61 28 6:1 65 62 l1 611 66 66 611 62 64 65 64 65 2 <) SJ 58 56 M 55 55 55 56 55 57 58 55 56 30 5 fl 60 59 11 59 6i) 61 60 58 59 60 59 59 31 6 ') 61 66 l1 65 66 65 66 6 Li 6p 67 65 65 A vei:-aqes and ext r:emes fOL" all data Ave 51.2 60.4 58.2 58. 2 5<). 0 59. 3 58.8 59. 0 57. 1 59.0 ')9.'} 5 8. 3 58.8 Max 11 76 73 72 72 13 72 74 71 74 74 72 72 Min 411 49 46 46 47 48 1n 47 45 47 47 47 47 cases 31 31 31 27 25 31 31 31 31 31 31 31 31 Aver:aqes a11d exti:-emes for <lays with data fi:-om all stations having data for: this month Ave 57.9 60.8 58.7 59. 1 58.7 59.5 59. 0 5 9. 2 57.4 5 9. 11 59.9 58. 7 59. 3 Max 71 76 73 72 72 73 72 74 71 74 74 72 72 l1 in 48 51 47 48 47 48 47 ,, 9 46 48 1t9 48 118 2~-

                                                                                                                                 *-~

21 21 21 21 21 21 21 21 21 _c.~ 21 21 .

  • i  ! I L__.- -~- -----
                                                                                       .---'  *-----'    _,_j     ---                   -~~J L----*                                                           - *
    • ~*
  • J Table 4.2J Palisades Network:
  • Daily Minimum Temperatures ( P) for October 1977 DAY P*) 11\ P02A P03A PO 4A POSA P06A P07l\ PO 8A P09A P10A p 111\ P12A p 131\

1 5) 50 48 49 50 49 49 49 IH) 50 49 49 49 2 411 44 41 42 43 42 42 40 43 39 42 44 44 3 43 43 37 38 4*} 40 36 34 37 36 37 42 40 4 36 36 33 35 35 36 35 32 35 34 35 39 37

')      46           52    52    47    46      41     4]       47       51        47                47         119       45 6      112           41    39    39    30      37     36       38       39        36                40         39        4i) 1       34           35    29    34    31      31     33       31       33        2 f3              32         33        34 8       48           48    40    48    47      48     48       46       46        48                 48        47        47 9       47           47    47    47    46      42     42       46       46        47                47         45        43 10       41)          40    39    39    39      39     41)      38       40        38                 38        40        41 11       411          45    45    44    411     43     44       44       44        45                 44        43        44 12      31            32    27    28    30      30     30       29       29        29                28         31        31 1]      29            29    211   27      l'1   27     28       27       28        211               27         10        31 14      31            34    27    30      M     32     35       30       34        27                 31        34        3,5 15       42           41    42    41      M     39     40       40       LIO       42                 41        43        42 16       30           32    28    JO      M     29     28       29       31        29                28         13        33 11       27           20    24    26      11    27     27       26       26        25                26         28        29 18       47           48    47    46      M     46     46       47       46        47                47         48        46 19      40            43    35    34    34      J3     35       35       35        36               34          37        38 20       36           35    32    31    31      32     32       3 i)     31        32                10         34       34 21 . 37           40    34    41    36      42     1n       31       43        35                 39        42        45 22       45           45    45    44    44      45     45       44       43        45                115        116       45 23       46           46    46    46    45      46     45       46       45        46                46         46        1i6 24       45           46    47    46    45      45     47       45       46        ~6                45         116       46 25       54           56    56    56    55      56     56       5{i      54        56                ') 5       57        55 26       4U           48    48    50    47      48     48       48       48        50                49         49        49 27       45           47    43    43    44      44     45       44       45        43                114        46        46 28      36            11)   33      M   4 ()    38     39       34       39        35                 35        41        41 29       33           36    30      M   33      34     37       )J       35        )1                 33        37        38 30       34           36    28      11  32      32     35       31       34        29                32         311       37 31       45           47    48      M   46      47     49       46       47        ,, 6               47        47        47 Averages and extremes for all data Ave      40.5         41.7  38.8  40.0  40.8    39.4   J <J. 9  38. 8    40.0      J 8. 7             3 9. 4    41.)      41.2 Max      54           56    56    56    55      56     56       56       54        56                55         57        55 Min      27           28    24 . 26    30      27     27       26       26        24                 26        2A        29 Cases    31           31    31    27    25      31     31       31       31        31                 31        31        31 Averages and extremes for days with     data from all  stations having data        for this month Ave      42.9         43.8  41.5  42.J  41. 11  41. 4  41.6     4'.). 9  42.;)     41. 2              41. 6     4 3. !)   42.8 Max      54           56    56    56    55      56     56       56       54        56                55         57        55   -..J
                                                                                                                              .._J Min      31           32    27    28    30      30     30       29       29        28                 28        31        31 Cases    21           21    21    21    21      21     21       21       21        21                 21        21        21

I

                                                                                                                                                                   -...)

Table 4.3J Palisades Network: Daily Averag~ Temperatures ( P) for: October 1977 co DAY P01A P02A POJ i\ P04A POSA P06A P07A PO BA f?09A PlOA P 11 A I? 1 2 A P13A 1 ') 3 53 52 52 53 52 52 51 51 53 53 52 52 2 52 52 51 51 51 51 50 50 50 51 51 51 51

    .1          51         SJ     52      51          51         5l.)   40        50        49             52                 51              52        51 4           49         52     48      49          49         50     51        49        50             48                 49              52        51 5           54         57     57      56          55         55     54        55        55             56                 56              56        55 6            51        51     51      51          49         49     6       50        50             51                 51              50        50 1            45        45     43      45          43         43     44        43        44             43                 45              44        45 A           53         53     53      54          52         53     53        52        52             53                 53              52        52 9           50         50     50      50          48         47     47        48        48             50                 49              48        48 10             51        53     52      52          51         51     51        52        51             52                 52              51        52 11            48         48     48      47          47         47     47        48        47             47                 48              47        48 12            44         45     43      43          43         43     42        44        42             44                 44              44        44 13            39         42     38      4 (I          M        40     41        40        41             38                 40              41        42 1 ll           43        47     43      46            M        48     48        ,, 5      47             43                 IJ6             48        IJ9 1 c:;          51        52     51      Sll           M        50     49        51        50             51                 51              51        5;)

16 41 41 40 40 M 39 39 IJ 1 39 41 40 41 4 () 17 43 46 45 45 M 46 46 47 IJ6 IJ 5 46 46 46 18 50 51 50 4.9 M 49 48 50 49 50 50 51 49 19 49 50 49 48 47 47 47 49 47 49 48 49 4 fl

2) 45 47 44 45 45 45 46 44 45 45 45 48 47 21 51 57 55 57 56 58 56 55 56 55 57 58 57 22 50 51 50 50 50 51 50 51 49 51 51 52 51 23 48 48 48 48 47 48 40 48 47 48 48 48 48 24 57 60 59 58 58 59 59 59 58 59 59 59 58 25 58 59 59 59 59 59 60 59 50 59 60 60 59 26 52 53 52 53 51 53 53 52 52 53 53 53 SJ 27 50 51 49 51 50 51 51 50 49 50 51 51 52 28 49 52 48 M 50 51 52 50 50 50 50 51 52 29 43 46 41 M 43 4) 44 42 45 42 IJ 4 44 46
  )1)            45        ll]    44        M         46         46     48        45        46             45                 47              46        48 31             56        57     57        M         56         57     57        57        56             57                 57              57        57 Averaqes and extremes for all data Ave             49.1      50.6   49.1    4 9. 7      50.0       49. 4  4 C}. 4   4 9. 2    49.0           IJ 9. 5            49.C)           5 o. 1    50.0 Max            58        60     59      59          59         59     60        59        58             59                 60              60        59 Min            JC)       41     38      40          43         39     39        40        39             38                 40              41        40 Cases           31        31     31      27          25         31     31        31        31             31                 31              31        31 Averaqes and extremes for days with                data from all      stations having data               for this month
 ,.s J\ ve           5).5      51. 9  50.7    51. (J      50. J      50. 6  50.4      50.4      50. ()         51. 0              51.2            51. 2     51.0 Max            58        51)    59      59          59         59     60        59        58             59                 60              60        59 Min            41*       ll5    43      43          43         43     42        43        42             43                 44              IJ 4      44
n 2~-

21 21 21 21 21 21 21 21 21_ .1' ____ 2 1 . -* .__ __ _... ___J - -. _j

        *-- -----    *-*-*              ~ ---  . :~  ---                                                         --:-:-::--      -.                          - -- j
  • Table 4. 1K Palisades Network: Daily Maximum Temper:itllres (F) for November 1977 DAY P) 1A P02A P03A P .i 4A Pu5A P06A P07A P08A P09A P.10A p 11A P 12A p 13A 1 62 63 63 M 62 62 64 611 63 62 63 63 62 2 71 75 72 ['] 73 73 74 74 72 74 75 74 73
    )        71      71     70              70 M              72     72      71      71       72        71    7 IJ    71 4        61      63    (j 2       M    62        65     67      63      61       64        65    63      65 5        6 .1   64     64         M    63        63    63       64      61       65       65     63     64 6        69      70     68        M    69        69    67       70      68       70        70    69     67 7        65      66     64        M    65        64    64       65      64       64        66    6 It   64 8        64     67      66        M    66        67    66       67      66       69       68     66     66 9        67     67     66     66       66        66    66       66      67       67       66     66      67 10        47     46     47     46       46       47     48      47       llB      49        47    47      49 11         39     39     38     38       3 I)     38     37      39       39       39       39     38      38 12        36     40     37     37       37        38    37      38       31       39       37     36     38 13       38      40     38     39       38       38     37      41       39       40       llQ    39     38 14        45      1~9    47    47       46       46     45      47       46       49       48     47     46 15         55     57     58     59       58       58     57       58      58        11      58     57     57 16        54      55     55     56       54       5 It   53      54       55        M       55     5 It   54 17        46      46     LJ1    117      44       44     lt4     45       46        M       46     44     44 18         41     40     41     40       39       39     39      39       40       41       40     39     40 19        41     41     41     41       40       41     39      41       41       42       41     41     41 20        58      57     58     58       58       56     56      57       58       58       57     57     57 21        49      48     48     49       48       47     45      48       47       49       46     47     47 22         35     36     36     35       35       35     35      35       35       36       36     36     35 23         39     39     40     39       38       39     38      39       39       39       39     40     38 21!       3 fl    39     39     37       38       37     37      38       31       38       37     38     38 I

I 2S 34 3 L! 34 33 33 33 33 33 33 35 ]) 33 33 I. 26 26 25 26 25 25 25 23 25 24 27 25 26 24 27 31 J1 31 JO 28 30 28 31 30 30 30 31 31 28 ) 1 30 31 31 30 30 29 31 29 31 29 31 31 29 J1 3 ll 33 32 30 34 32 34 31 33 3] 33 33 3,) 34 34 35 34 35 35 31t 34 33 36 34 35 35 Averages and extremes for all data Ave 4B.O 48.9 48.5 41.8. 1n. 8 48.2 47. 6. 48.6 47.9 48.8 48.6 48.2 48.2 Ma lC 71 75 72 66 73 73 74 7 It 72 74 75 7 ll 73

  !1in      26      25     26     25       25       25     23      25       24       27       25     26     211 Cases     JO      30     30     22       3.0      3 (J   JO*     JD       30      27        JO     30     30 A veraqes   and extremes for days with data from all stations havinq data for this month Ave       'H1.0   40.5   40.J   39.B     39.4     39. 7  38.0    40.2     39.6     40.9     39.A   40.0   39.9 Max       67      67     66     66       66       66     66      66       67      67        66     66     67 Min       26      25     26     25       25       25     23      25       21t      27       25     26     24 Cases     19      19     19     19       19       19     19      19       19       19       19     19     19

CXl 0 Table 4.2K Palisades NetwoEk: Ddily Minimum TempeE~tuEes {F) Eoc NovemlHH" 19 77 DAY PO 1A PO 21\ P031\ P04A Pu5A P06A P07A PG BA pl) 9 .I\ P10 A P111\ P12A P13A 1 58 57 58 M 56 57 58 58 57 57 57 57 58 2 54 54 57 M 56 56 56 54 56 56 56 57 56 J 57 56 57 M 58 59 60 58 58 57 *59 59 58 4 48 49 48 M 47 48 48 48 47 ii 9 48 48 47 5 45 46 46 M 45 1!6 46 46 45 47 46 I! 6 46 6 53 52 51 M 51 52 53 52 50 53 52 51 52 1 57 57 56 M 55 56 56 57 55 57 56 57 57 A 56 56 56 M 55 56 56 57 55 56 56 56 57 9 47 46 47 46 46 47 48 47 48 49 47 47 49 10 16 36 34 JS 34 33 32 35 34 36 36 35 34 11 33 33 33 32 J1 32 31 32 33 34 33 34 33 12 28 29 28 27 27 28 26 26 28 27 27 28 29 13 26 27 26 27 26 26 21! 26 26 26 26 28 28 14 31 33 32 J3 33 33 32 33 32 34 33 33 ]J 15 36 39 41 42 39 37 41 39 41 M 41 4 .J 40 16 44 45 46 46 44 41 38 44 45 ti 45 44 43 17 40 38 40 39 38 ]7 37 3B JB t1 39 38 39 18 31 37 38 38 36 27 25 )7 37 3 ') 37 37 31 19 30 30 29 27 24 23 23 27 27 29 26 26 27

2) 39 38 39 39 38 37 38 38 39 4 () 39 39 38 21 33 33 34 33 31 30 30 31 34 33 32 32 )3 22 29 29 30 29 27 26 26 27 28 29 28 28 29 23 30 30 31 30 29 29 29 29 29 3J 30 31 30 24 33 33 34 32 33 32 31 32 31 34 32 .n 33 25 22 22 24 22 23 21 20 22 22 24 22 21 23 26 18 16 19 10 17 15 13 18 17 18 16 16 15 27 12 15 17 15 13 13 13 15 15 16 14 15 14 28 2 <) 18 20 20 19 19 19 18 18 2i) 19 20 20 29 9 13 9 9 8 9 11 8 14 5 9 12 12 30 9 1A 9 1{j 11 12 18 11 18 9 13 17 19 Averaqes and extremes for all data Ave 35.7 36.2 36.) 29. 5 3 5. 0 34.6 34.6 35.4 35.9 ) 5. 7 35.8 36.2 36. 1 Max 58 57 58 46 58 59 60 58 58 57 59 59 58 Min q 13 9 9 8 9 11 8 14 5 9 12 12
  • Cases )!) 3 f) 30 22 30 30 30 30 30 27 30 JO 30 Averages and extremes for days with data from all stations ~aving data foE this month Ave 27.5 28.2 28. 1 27.5 26.6 25.9 25.7 26.9 9

27.9 28.0 27.3 2 8. 0 27.9 Max 47 IJ6 47 46 46 47 48 47 48 49 47 47 49 Min 19 9 1] 9 9 8 19.9 11 8 14 5 12 12

  • ~-----*

19 19 19 19 19 19 1'9 19 19

                                 --           *-                                                                                                                                      19        .9
              \.~o~**-ooo    ~-~  - . *------- -- :... ---...-
                                                                 \;___ ___                 --- -- _, ~- -*-  ---          _I;
....____ _. L-:-.::_.; --.~--::-:::-~ -- ...*....-*i --~~

____ _..' 0 --*

  • /..:.:.......
                                                                *                     - ..             \,**

Table 4.JK Palisades Network: Daily Avet:'age Temper-a tu res ( F) for November 1977 DAY PO 1 A P02A P03A P04A POSA P06A P07A PQ 8A P09A P10A p 11A P 12A P 13A 1 6:) 59 60 M 59 59 61 60 59 6*J 60 59 60 2 62 6] 63 M 63 63 64 63 63 6 ij 64 64 63 3 63 63 63 M 63 63 64 64 63 64 64 64 6] 4 56 56 56 M 56 57 58 56 .5 5 57 57 57* 57 5 54 54 53 M 53 54 54 54 52 54 54 53 53 6 59 59 58 M 59 .59 59 60 58 59 60 59 59 7 60 6'.) 59 M 59 59 59 60 59 60 60 59 60 8 59 59 59 11 60 60 60 60 60 61 61 60 61 9 61 61 61 61 60 62 61 1 11) (j 62 62 62 62 62 39 39 38 38 37 37 37 38 39 39 39 38 38 11 37 37 36 36 36 36 35 36 37 37 37 31 36 12 32 34 32 32 31 32 31 32 32 33 32 32 33 13 32 33 32 32 32 32 31 32 33 33 33 32 33 1 '* 37 38 38 38 31 37 38 37 38 39 39 38 38 15 48 50 51 52 50 SQ 50 50 51 M 51 51 51 16 48 49 49 50 48 49 47 48 49 i1 49 48 49 17 43 42 43 42 41 40 40 41 41 ,_. 1 11 41 41 1B 39 38 40 38 37 36 36 38 4 () 38 38 38 36 19 37 38 38 37 35 33 )) 36 37 38 36 36 34 20 49 48 . 50 49 48 1'8 1'8 49 5!) 4q

                                                             '* 8                                           48      49 21         37      36       37                 37     35     )5      34     35        36        36          35      36      36 22         32      32       33                 32     31     30      30     31        31        32          32      32      31 23         35      36       36                 35     34     35      34     3{5       34        35          35      36      35 24         36      36       31                 )6     35     35      35     35        35        37          35      36      35 25        30       30       31                29      JO     29      29     29        29        31          29      29      29 26        24       24       25               23       23     22      20     23        23        25          23      23      23 27        21       22       22               21       20     20      20     21        20        22          21      21      21 28        28       27    . 28                26       26     26      26     27        26        27          26      27      26 29         18      22       19                 19     1 'J   20      21     18        20        18          19      22      22 Ji)        27       28       27               28       20     27      29     25        28        29          28      29      29 Averages and ext rem es for all data Ave        ,, 2. 0  42.5     42.5            36.G      41. 5  41. 6   41.4   41. 8     41.9      4 2. 3      42.3    42.2    4 2. 1 Max       63       63      63               61        63     63      64     64       63         64          64      64      63

'1 in 1 fl 22 19 19 19 20 20 18 20 18 19 21 21 Cases 30 30 30 22 JO 30 30 30 JO 27 30 30 30 Avet:'aqes and extremes for dcl ys with data from all stations ha~ing data for this month Ave 3 4. 3 34.7 34.8 3 4. 1 33.4 3 3. ) 33. 1 3 3. 7 3 4. 1 34.9 3 4. 1 3 4. 3 34.0 Max 61 61 61 61 60 62 61 61 62 62 62 62 62 00 Min 18 22 1 ') 19 19. 20 20 10 20 1 IJ 19 I-' 21 21 Cases 19 19 19 19 19 19 19 19 19 19 19 19 19

Table 4. 1L Palisades Network: Daily ~aximam Temporituras (F) for occ*~mbor 1977 ro N D r1 Y PO 1h P02A POJA Pv 4A PC 5A P06A P07A P:J8A P("9 A P1 ')A P11A P 12A p 1 JI\ 1 39 3q 40 38 37 37 J7 37 37 3 CJ 18 38 3 f3 2 JB 31 39 36 35 34 36 36 34 37 36 3 l7 36 33 32 34 32 32 32 32 33 30 32 31 4 32 32 J] 38 36 34 34 34 33 35 33 33 35 36 5 31 31 36 31 29 29 29 29 29 30 29 3 () Jr) 30 6 29 28 28 28 27 27 27 28 27 28 27 7 28 21 26 26 28 .26 25 25 25 25 25 25 26 8 25 26 29 28 31 27 26 26 26 28 27 27 28 9 28 27 27 26 27 26 25 25 25 25 25 24 26 26 26 10 23 22 23 22 20 21) 21 21 21 21 21 22 21 11 19 19 18 18 16 17 16 18 15 18 17 16 11 12 39 39 39 39 39 "38 39 39 39 38 .3g 40 39 13 39 *39 40 39 38 39 39 39 39 40 39 14 39 39 36 36 37 35 34 35 35 36 35 37 36 15 37 36 39 38 38 37 37 37 37 38 36 38 38 16 47 It 9 38 38 48 49 48 49 119 50 1rn 50 49 50 49 17 50 51 49 . 50 49 48 47 49 48 51) lt9 18 50 49 41 41 42 41 42 42 42 41 40 40 111 42 19 40 42 40 liQ 40 40 39 39 40 39 irn 39 39 4 (I 2ll 4:) 40 40 39 39 40 39 39 38 40 39 ]9 40 21 34 3 .J 34 33 33 32 32 32 32 33 22 33 32 33 33 32 33 32 31 32 33 31 31 32 32 23 . 37 .12 32 37 39 37 37 )7 39 37 36 39 40 38 24 37 42 40 40 40 39 40 39 40 39 40 40 4~ 25 41 26 25 27 23 25 25 26 24 23 25 24 24 26 18 25 16 18 15 16 15 15 M 15 17 17 27 19 16 16 19 18 17 17 1 13 17 l'1 17 19 19 20 28 1'J 26 25 25 25 24 24 23 M 24 25 25 24 25 29 J1 31 31 JO 29 )1 31 J1 29 ]1 31 3 ()

].J         JC                                                                                                                                                                          JO JJ            32        31              30           30            31)        31               29            31                    32                  29      30 31          3*)         29            30        29              29           2*9          28          29               29            3J                    3l.J                       3.,'

29 Averages and extreme~ fdr all datd /\ ve 3 3. 1 32.9 33.3 32. 2 3 1. 1 31. 8 31. 8 33.6 31. 3 32.5 32.5 32.4 32.5

'lax        5 *.)       51           49        50               49           49           4q         50                48            50                    4g                  51)     49 Min         rn          16            18        15              16           15            1S         18               15            17                    17                  16      16 Cases        31          31            31       31              31            )1           31         28                31            31                    31                  31      31 Averages and extremes for ddys with                             Jatd from all              stations having data                       for this m~nth Ave         J 4
  • IJ 34. 3 34. 7 33. i.) 33.0 3). 2 33. 3 33.6 32.6 33. 8 )). B Max 5*j 13. 7 33. 8 51 49 Su 49 49 49 5 () 48 5:) 49 5.j 119
-lin 19 19 18 1u 16 17 16 18 15 18 17 16 17
        ---~~8 28            28        28              28                                    28               20             28 2'~--'- *~~
                                .,                                           28.          28                                                               28 C.s.                                       *-.
                  *--~     *~:. -=-*  ---.-*     .. -*
                                                        't --~--- ....
                                                        *~              *-        .__ _;*    :..._   ~--- ... ---i -----.:--*

____ _j ------=-..:..* - -:-::- .

    • . - .-, ---*--~--

I r

                                                           \

Table 4.2L Palisades Netwo[k: Daily Minimum Temperaturas ( F) for- DGcomber

                                                                                                                                        *- -*,    -- ...... I 1'-.171 D71 Y   PO 1 A. P02A          P03A          [>()   4A     PO 5A        P06A       l?07A   POUA            P O'lA         P10A            P1H               P12A     P13A 1    33         3]            35                 32 -     31              31       32         33           31               32             33              32       32 2    33         32            34                 30       30              31       32         32           30              32              31              ]1       31 3    28         29            30                 28       27              26       27        27            27              29              28              28       2R It   27         26            27                 24       21              21       23        23            24              25              23              211      23 5    28         27            28                 27       26              26       26        25            26              26              26              2 fl     27 6    2 i)       18            19                 19       17              16       16         17           17               17             1B              18       18 7       5         5              6                5         2              2        3             4          4                   4          5                4         lj 8       3         lt             5                4         1               1       )             3          2                   ')
                                                                                                                                     '-         3                2         1 9     11        11            10                  9         7              u        8             8          g                   8          8                9         9 1')      11         11            11                 10         8              6        7         1 ()           9                   0          9                9         8 11       1 ;~.... 10            11                  9         8              u        8             8          8                   8          9                9      10 12      15         15            16                 14       13              1J       15         14           14               14             14              16        14 13      34         36            36                 35       33              35       35        35            34              35              35              35       35 14      34         34            35                 34       32-             33       33        34            33              34              33              34       34 1S      32         32            34                 32       31              32       32        32            32              32              32              32       32 16      30         32            34                 34       32              32       33         JO           33              33              ]3              34       33 17      4J         40            41                 41       40              39       40         39           39              40              39              41)      lj i) 18      37         38            39                 ]8       37            . 37       37         38           31              38              31              39       38 19      36         35            38                 36       36              37       36        36            35              37              36              37       36 2-)       25        25            25                 21       21              20       19        23            22              22              20              2 ')     2*i 21       21         20            20                 19       18              19       19         19           18              2*)             19              19        19 22      2)         211           23                 22       21              22       23        22            22              23              2]              22       22 23       24         27            29                 24       26              26       27         25           25              27              26              26       26 24      21         23            23                 22       21              22       22        21            22              21              23              23       23 25       1;)          9           10                  9         7              8        8             8          7              10              8                8         9 26        10          9           10                  9         7              8        6             M          7              1 ()            9                8         9 27         9         8              8                7         7              5        6             M          7                   8          6                7         5 28          g.        8              8                7         7              6        5             M          6                   8          7                6         6 29       17         17            18                 17       16              15       16         18           17               15             17              17       16 30         7       16               8                7        11              5       12             8        11                    8          9              16        1ll 31         6       llJ              8                7         7              4       10             7        13                    7          8              1]        11 Averages and extremes for all data Ave      20.9       21. 5         21.9               20.4     19. 4           19,; 2   20. 0      2 1. 4       20. 0           2 o. 4          20.2            2 o. 8   20.5 Max     4 (j       40            41                 41       41)             39       40         39           39              4 !)            39              40       40 Min         3         4              5                4         1              1        3             3          2                   2          3                2         3 Cases    31         31            31                 31       31              )1       J1        28            31              31              31              31       31 Aver-aqcs and extremes for days wit:.11                       data fr-om all stations having data                              for this month Ave      22.2       23.0          23.3               21. 8    20.7            20.5     21. 5     21. 4         21. 5.          21. 7           21. 6           2 2. _)  2 2. :)
'lax     4t_}       40            41                 41       40              39       40        39            39              4 ')            19              40       4(:     00 l.f in      3         4              5                4         1              1        3             3          2                   2          3                2          3   w Cases    28         28            28                 28       28              20       28        28            28              2 fJ            28              20       28

Table 4.31 Palisades Network: Daily Average Temperatures ( F) for December 1977 00 fiAY P01A P02A P03A P04A PU51\ PlJ6A P07A p 09i\ P0 8 A P10A P1 U p 12.~ P13A 1 36 36 37 35 34 34 35 35 ]4 36 35 )6 35 2 35 34 36 33 33 33 33 3 It 33 34 33 35 33 3 )*"'! JI) 32 29 29 29 29 29 29 3 ') 29 3 l) 30 I~ 29 JO 31 29 28 28 28 29 28 28 29 3i) 29 5 29 29 30 28 28 28 28 27 27 28 28 29 2CJ 6 24 24 24 23 22 22 22 23 22 22 23 23 2] 7 19 19 20 18 17 16 17 18 18 17 18 17 17 8 Hi 16 17 16 14 14 15 15 15 15 15 16 16 9 17 18 17 16 14 15 16 16 16 15 15 16 Hi 1J 19 18 19 18 16 14 14 17 16 16 17 16 15 11 13 13 13 13 11 11 12 12 11 =12 12 12 13 12 32 32 33 32 31 31 32 32 32 *'3 2 33 33 32 11 36 37 38 37 . 35 36 36 36 36 37 37 37 37 111 35 35 36 35 34 34 34 34 34 35 J4 35 35 15 35 35 35 34 34 34 34 34 34 35 34 34 35 16 38 40 41 40 39 40 40 17 44 114 45 44 43 43 ILJ ° 44 40 44 41 45 40 44 41 45 40 44 18 39 40 40 39 39 40 39 39 39 39 39 40 40 19 38 38 39 38 38 38 37 38 37 JO 18 38 3B r*,, 34 )It 35 33 J2 33 32 33 33 33 33 34 33 21 27 26 26 24 23 24 23 24 24 25 24 24 24 22 28 28 28 27 26 27 27 26 26 27 27 27 27 23 2 !t 33 34 34 33 33 33 33 33 32 34 34 ] ,, 33 31 31 32 31 30 31 31 30 30 ]1 31 31 ] 1 25 14 14 14 12 13 13 13 12 11 14 13 13 13 26 14 13 14 12 12 12 11 M 12 14 13 13 13 27 16 15 16 14 14 14 14 M 14 16 15 15 1s 28 19 19 18 17 16 15 15 M 17 18 17 16 lfi 2q 2 IJ 24 24 24 23 22 24 24 23 23 24 23 23 30 21 211 21 21 21 19 23 22 23 2:) 22 23 24 31 20 22 20 20 20 19 22 21 21 2 () 21 22 23 Averaqes and extremes for all data Ave 27.3 27.5 27.9 26. 6 25. 9 25. 8 26.2 27.7 26. 1 26. 8 26.6 2 7. 0 26.9 Max 44 44 45 44 43 43 43 44 44 45 44 It 5 Min 13 4 '~ 13 13 12 11 11 11 12 11 12 12 12 13 Cases 31 31 31 31 31 31 31 28 31 ]1 31 31 31 Averages and extremes for days with data from all stations having data for *this m9nth I\ VO 2B.5 28.8 29. 2 27.9 2 7. 1 27. 1 27.6 2 7. 7 27.3 2 8

  • IJ 27. 9 2 f], 3 28.2 Max 44 44 45 44 43 43 43 44 44 45 45 44 Min 1J 13 13 12 11 It '*

11 12 12 11 12. 12 12 1] 2 a-c***- 28 28 28 28 28 28 20

                                                            ;-- 28 ; . 28                                                  28           28                *
               .- *- --     '-----~       *---  ) .\
                                                  ----~-
                                                            ,__      ' ... ,    ________,. '*-      .____;/             -~       L ~J*;  * .___ . . _...;   '*. . -;: :;-.:-. ./ .---- j

85 V. HUMIDITY \ .. Relative humidity is measured with the hair hygrometer of a hygrothermograph located in a standard instrument shelter. It is recorded on a scale of 0-100% and reported to the nearest whole percent. Since

    *relative humidity is a function of temperature, the data are given in three tables for each month. The first gives the relative humidity for standard National Weather Service reporting times, for each day of the month. The second gives the temperature reported at the same six-hour intervals. The third gives the dew point, defined as the temperature ~t which saturation occurs. It is calculated from the correspor.ding
  • values of temperature and relative humidity. The significance of dew point as a moisture variable is that it is a function of the actual amount of water vapor in the air rather than the amount relative to saturation, as is relative humidity.

The data contained in this report are only for the two main stations. Hourly values of temperature and relative humidity as well as calculated values of dew point and specific humidity for all network stations will be used in analyses, however, and are stored at the University of Michigan Computing Center on magnetic tape. Discussions of hygrometer calibration procedures and the general accuracy of the humidity data may be

  • found in annual reports for this project.

86 _Table 5.1A Relative Humidity (3) 9t January *197i f POJA P07A Time (EST) Time {EST) c.::I Day 0100 0700 1300 1900 0100 0700 1300 1900 I i 1 82 79 87 85 90 87 89 91 *.,) 2 87 90 76 78 89 91 78 83 3 89 95 81 87 89 96 83 91 ~- *--. ( 4 68 67 50 76 78 79 56 74 I

                                                                         ...i 5        90    90     60       as*         90    92    74     90 6        88    91     79       92          95    92    83     94     --)

7 74 69 7J 80 82 85 67 85 ) 8 65 85 89 87 72 88 88 92 ) 9 64 72 56 72 77 79 62 77 10 81 84 73 77 87 89 88 84 ,*.. 1 ( 11 71 76 75 6 i) 84 83 82 68 12 87 75 74 74 92 89 85 88 13 68 75 76 86 74 77 SJ 90 ') 14 92 88 81 81 96 94 83 85 15 82 77 78 72 r 87 83 77 81 ~.-I 16 81 83 79 86 87 87 85 91 17 86 89 81 88 88 89 80 92 18 91 93 69 76 93 91 69 76 * .i 19 79 90 77 77 86 91 79 77 20 86 86 81 84 88 86 78 87 21 88 61 71 69 91 79 82 78 I 22 92 73 58 81 87 76 63 84 I l 23 83 75 65 81 89 79 65 86 24 97 97 91 90 98 97 90 91 25 80 87 69 69 g1 96 8 J. 79 ..J 26 79 76 91 75 90 88 95 75 27 83 84 76 75 89 87 74 71 28 88 83 86 86 90* 84 85 85 29 86 88 88 88 87 86 88 88 30 88 87 87 90 89 87 88 89 31 90 90 93 94 91 91 83 80 Averages for all days *ith data Ave 8 2. 8 82.5 76.3 80.8 87.6 87.0 79.3 83.9 Cases 31 31 31 31 31 31 31 31 i

                                                                        ')

Averages for only those days vith data foL both stations Ave 82.8 82.5 76.J 80.8 87.6 87. 0 79.3 83.9 Cases 31 31 .3 1 31 31 31 31 31

87 Ta:Ole 5. 2A Temperature (F) January 1977 P03A P07 A Time (EST} Time (EST) Day 0100 0700 1300 1900 0100 0700 1300 1900 1 16 18 21 21 14 16 21 18 2 16 18 21 16 13 15 18 15 3 17 19 23 24 15 17 22 22 4 25 25 33 20 24 23 30 18 5 6 8 25 14 11 9 22 12 6 -1 16 2.3 22 1 15 21 21 7 20 14 16 13 19 11 16 11 8 7 9 18 18 5 7 15 16 9 12 0 s 6 10 -3 5 4

     . 10        9    13     18   17            6       8      13   15 11       17    13     13     3         14,.. 12        7    0 12       12     9     10   11            0       7.      8    8 13        3    -2       8  17            0       0       9   17 14       24    26     20   17          22      22       21   19 15       19    15     11      8        17      16       13    8 16        0    -1       4     7          2       0       5    2 I

17 6 7 11 11 6 6 10 9 18 12 11 18 ~ 1.0 6 16 5 19 23 21 22 10 23 22 23 12 / 20 3 7 16 16 4 7 17 15 21 19 22 23 20 18 19 24 20 22 16 14 21 19 15 1, 21 18 23 12 15 21 22 13 l6 23 22 24 24 25 27 27 24 24 27 28 25 27 27 25 21 27 27 26 21 26 22 19 24 14 21 16 24 13 27 5 3 7 10 5 3 8 8 28 11 1 1 .3 11 0 0 1 29 4 6 6 8 2 2 6 s 30 7 6 9 9 6 3 7 6 31 11 13 18 15 10 9 17 13 Averages for all days with data Ave 13.0 12.8 16. 7 14. 4 12. 0 11. 1 16.0 13.0 Cases 31 31 31 31 31 31 31 31 Averages for only those days with data for both stations Ave 13.0 12. 8 16. 7 1 4. 4 12.0 11. 1 16.0 13.0 Cases 31 31 31 31 31 31 31 31

88 Table 5.3A Dew Point January (F) 1977 1.~

                                                                       -     (

j P03A P07A Time (EST} Time (EST) Day 0100 0700 1300 1900 0 10 0 0700 1300 1900 -i 1 12 13 18 17 12 13 18 16 i 2 13 16 14 10 11 13 13 10 3 15 18 18 20 13 16 17 20 *- { 4 16 16 16 14 18 17 16 11 5 3 6 13 11 9 7 15 10 6 -4 14 17 20 0 13 17 20 --) 7 13 6 8 8 14 8 7 8 8 -1 6 15 15 -1 5 12 14 .J 9 2 -7 -6 0 4 -7 -5 - 1 10 4 9 11 11 3 6 10 11 11 9 7 7 -6 10 8 3 -7 12 9 3 3 4 4 4 5 5 13 -4 -8 2 14 -6 -5 4 15 14 22 23 ") 15 12 21 21 17 15 *, 15 14 9 6 I) 14 12 7 4 i 16 -3 -5 4 0 0 -3 1 0 17 3 4 1 8 3 4 5 7 18 10 10 9 -1 9 4 8 0 19 18 19 16 5 19 20 17 6 20 0 4 11 12 1 4 11 12 21 16 11 15 11 16 14 19 14 I i I 22 14 7 8 15 12 5 11 14 23 8 9 11 17 11 10 13 19 24 23 24 25 24 23 23 25 26 25 21 21.J 17 13 25 26 21 15 .__ j 26 17 13 22 7 18 13 23 6 27 1 0 1 4 2 0 2 1 28 9 -2 -1 0 9 -3 I

                                                        -2   -2 29          1    3       3    5          O"    -1       3    3          1 30          4    3       6    6          3       0      5    3 31          8  10      16   1 Lt         8       7    13     a Averages for all days ~ith data Ave     8.6   8.4 10. 3    9. 5       8.9     8.0   10.5  9.0 Cases      31   31      31   31         31      31     31   31
                                                                     *-' ,,.~

Averages for only those days with data for both stations Ave 8.6 8.4 10. 3 9. 5 8.9 8. 0 10. 5 9.0 Cases 31 31 31 31 31 31 31 31

89 Table 5 .. 1B Relative Humidi~y (;1) \ \, \ I Time p1JJA (EST) February 1977 P07A Time (EST) Day 0100 r) 700 130'.j 19*) 0 -;; 100 O7 t:O 130 >J 1900 1 94 :1 M :1 37 90 78 87

  ..*.         2       11      i1        11     91           87      97         76        91 3      95       92      75        83           94       92        77        85 4     88       97      89        74           85      96         93        73 j     86       77      79        82           89       85        79        as 6     79       88      74        76           g2      *:i 2      80        33 7     82       78      71        81           93       94        73        76 8     73       71      46        55           75      75         55        62 i:.,..

9 62 79 72 76 66 85 v;) 87 10 87 97 61 78 98 98 70 85 11 85 95 64 79 90 96 62 31 12 9.8 89 78 91 90 93 78 94 13 85 . 86 70 7:) 92 92 84 74 14 81 77 74 80 as 83 80 80 15 74 79 61 63 75 93 62 56

                                                                                ,.. ?

16 84 33 56 75 39 91 '.)_ 71 17 87 91 52 61 93 94 54 65 18 77 82 88 90 81 as 86 90 19 94 93 . 68 76 97 95 7J 80 20 83 90 f:,7 81 89 95 62 82 21 80 87 50 64 93 94 52 69 22 66 69 66 78 73 75 51 72 I I 23 76 92 67 SJ 83 95 79 92

   !* .. 24       84       95      83        80           93       96        9 !)      89 25       69       67      67        73           71       72        69        72 26       74       33      60        71           75       38        72        63 27       86       96      84        89           97       96        85        93
    ';.   ~ 28       92       10*     64        64           96       80      . 6*J       63 Averages for all days with data Ave    82.3   84. 8 68.7 76.4               36.6      89.9      7 1. '.+   7 9. 1 Cases    27       26      26        27           28       28        28        28 Averages for only those days with data               fo~     both stations
            !\ ve  81.8 84. 8 68.7 75.8                 86.6      8 9. 6    71.0 7 a. J Cases    26       26      26        26           26       26        26        26

90 Table 5.28 Tern per a tu re ( E')

                                                                                           *1 Fe br ua :ry 1977 P03A                                    PJ7:\

Ti!lle (EST) Time (EST) -; Day v 100  :) 7'J 0 1300 19!) 0 0100 070l) 130.) 1 2 18 M M M i:'l 16 16 21 190 (l 19

                                                                                         -  )

M i.i 21 15 10 18 21 3 28 26 27 26 27 ~6 26 25 *1 4 26 23 25 20 26 22 24 17 5 16 9 13 11 15 8 12 1 '."'

                                                                                  ~.}

6 12 7 14 12 a 0 14 12 7 '11:) 13 15 4

                                                                                          '(

6 9 18 5 8 8 10 20 18 7 9 18 17 9 19 26 34 35 19 23 37 33 ---, 1 \) 34 28 45 43 26 27 42 40 11 40 36 39 35 40 36 43 34 _) 12 27 33 43 33 33 37 42 33 13 32 31 31 31 31 Jv 29 29 --.,I 14 30 26 25 18 29 25 24 17 I 15 17 17 '_) 16 13 16 14 17 9 16 -1 2 22 14 -2 0 21 1J 17 -1 ,') 27 27 7 8 27 26 i' 13 26 29 34 30 25 27 36 31) _) 19 20 17 29 23 23 15 28 24 20 22 21 23 17 22 19 26 18 21 - 18 -3 24 25 6 -2 23 23 22 29 30 39 35 2,8 30 43 39 23 39 38 51 49 39 38 50 47 24 48 44 35 I 32 ~7 43 37 32 I 25 34 33 35 ' 34 32 32 3 !.+ 34 - _J

  - 26         33     27       29     27            32          26     3()     27 27         27     24       26     26            26          25     25      25 28         26     25       30     28            26          25     31      27       __]

Averages for all days with data Ave 23.2 22.2 28.9 25.3 2 2. 3 20. 5 28. 4 24.3 Cases 27 26 2E 27 28 28 23 28 lverages for only those days with data for both stations

a.ve 23.4 22.2 28.9 25 .. 5 22.8 2 1. 1 29. 1 2 4. 6 _,/

Cases 26 26 26 26 26 2b 26 26 -

91 Table 5 *.3B Deli Point (F)

  • P03A Time (EST)

February 1977 P07A

rime {EST)

Day J100 1j?:)Q 1300 1900 c 1 oc 0700 1300 1 9 ;) C' 1 16 ~ ~ :1 13 13 15 15 2 11 11 M 19 12 9 12 19 3 27 24 20 21 25 24 20 21 4 23 22 22 13 22 21 22 10 5 12 3 8 6 12 4 6 6 6 6 4 7 6 6 -1 '.1 7 7 6 8 7 0 4 7 11  ;') 8 1 2 2 5 1 3 5 6 9 8 21 26 28 9 19 27 30 10 31 27 32 36 26 26 33 36 11 36 34 28 29 37 35 31 29 12 27 35 37 31 30 35 36 31 13 28 28 22 23 29 28 25 22 14 25 20 18 13 25 2G 19 12 15 10 11 5 3 9 12 6 0 16 -5 -1 8 7 -4 -2 6 2 I 17 -4 -3 12 15 6 6 12 16 ( r 18 20 24 31 28 20 23 32 27 19 18 16 20 16 22 14 19 18 20 17 19 13 12 19 18 15 13 21 5 -6 8 14 5 -3 8 14 22 19 21 29 28 21 23 29 3J 23 32 36 41 44 34 37 44 45 24 44 43 31 26 45 ~2 3!4 29 25 25 24 25 26 24 24 25 26 26 25 23 17 19 25 23 22 18 27 23 23 22 23 25 24 21 23 28 24 17 19 17 25 2 ,~... 19 16

  !\.ve::-ages for all days with data Ave        18.5 18. 2 19.6 18.8           1 a. s    1 8. 0      2:). 1   18.6 Cases        27      26       26  27         28        28          28       28 Averages for only those days with data for both stations Ave        18.5   18.2 1 g_ 6 18. 8       19. 3     18. 5       20. 6 1 8. 7 Cases        26      26      26   26         '),.

_o 26 26 26

' )

93 Table 5.2 c Temperature (I) March 1977 P03A P07A Tirae {EST) Time (EST) Day 0100 0 700 1300 1900 0100 0700 1300 1900 1 25 14 25 23 23 11 25 23 2 27 21 36 32 18 14 38 34 3 33 35 40 39 31 35 39 40 4 42 42 37 36 42 42 38 37 5 33 32 32 32 35 32 32 32 6 34 31 32 30 33 31 32 32 7 31 31 36 32 32 29 38 34 8 34 37 55 60 34 37 55 59 9 55 50 57 58 53 48 58 58 10 52 39 61 58 50 43 60 57 11 54 48 67 61 53 49 67 62 12 56 58 63 62 57 57 61 62 13 45 42 46 42 46 42 44 44 14 41 40 46 50 43 42 45 49 15 48 48 70 42 45 47 67 44 16 40 35 45 38 43 36 46 38 17 25 22 41 34. 26 25 39 34 18 34 32 34 31 33 33 33 31 19 31 30 36 37 31 32 37 38 20 34 29 34 35 34 29 3'3 35 21 33 32 40 34 32 31 39 34 22 32 30 35 31 30 29 36 31 23 .33 33 32 28 31 32 33 27 24 17 20 36 30 18 21 36 33 25 28 26 46 46 29 27 44 45 26 36 33 57 56 35 33 54 54 27 48 51 65 56 45 47 63 55 2B 54 56 58 59 54 54 57 58 29 55 61 64 59 55 61 66 60 30 45 57 58 48 50 57 59 55 31 40 36 38 35 42 38 41 36 Averages for all days with data 11.ve 38.5 37.2 45.8 42.4 38.2 37.G 45.9 42.9 Cases 31 31 31 31 31 31 31 31 Averages for only those days with data for both stations Ave 38. 5 37.2 45.8 42.4 38.2 37.C 45. 9 42.9 Cases 31 31 31 31 31 31 31 31

94 Table 5.3 C Dew Point (F)

                                                                             **1
                                    !!arch    1977
                                                                             -*1 P03A                               P07A Time {EST)                        Time (EST)

Day 1 0 100 18 0700 1300 1900 7 11 10 0100 19 0700 1300 9 13 1900 10

                                                                             ]

2 16 13 17 15 13 13 17 17 3 4 21 40 26 37 38 22 25 37 39 *1 41 35 32 40 41 36 33 I

                                                                                  )

5 28 26 25 27 29 27 24 26 6 26 24 21 24 24 26 21 27 7 25 26 25 14 25 21* 24 21

                                                                            -*1 8       25    24      31    36         23        23      29    34          I 9       34     35    37     41         32        33      36    41 10       39     34     40    35         39        35      38    37 11        42    40      41    37         41        37      41    37 -   .    \

12 37 55 56 54 38 53. 55 55 13 40 38 43 40 40 38 42 41 14 15 38 43 38 40 42 45 42 39 41 41 40 39 41 44 41 40

                                                                            ]

16 32 29 27 21 31 29 23 22 17 24 21 23 33 24 23 23 33 ( 18 32 30 3C 29 32 32 28 29 _) 19 28 29 29 26 29 30 27 27

    *20        26    26     29     30        25        27      28     30 21        30    30     32     30        30        30      31     30 22        27    20     22     22        28        .17     22     18 23        24    28     17     12        21      - 29      20     11 24        16    10     11     21         16        13     13     12 25        15    17                                                          (

21 25 17 15 21 25 26 27 26 30 34 29 23 28 32 27 34 34 44 53 34 3~ 41 53 28 51 53 54 ) 43 51 52 54 45 _J 29 52 46 JS 32 52 45 35 33 30 38 48 43 28 34 47 43 26 31 36 34 31 30 33 36 33 31 ( I Averages for all days with data Ave 31. 1 30.6 31.8 30. 8 30.8 30. 5 31.3 30. 8 Cases 31 31 31 31 31 31 3.1 31 .. ~' Averages for only those days with data fc~ both stations Ave 31. 1 30.6 3,. 8 *30. 8 30.8 *30. 5 31.3 3 o. 8 Cases 31 31 3.1 31 31 31 31 31

                                                                                 )

I,

                                                                             . I I

I L

95 Table 5. 1D Relative Humidity (%)

                                         .1\.pril    1977

(, - PO 31\ P07A Time ( E S'I) Time (EST) Day 0100 J 70 0 1300 1900 0100 OiCC 1300 1900 1 87 90 4g 49 89 90 49 50 2 65 90 81 79 72 91 83 70 3 85 69 40 48 89 79 38 42 4 64 68 88 87 65 71 90 91 r - 5 82 86 73 70 84 89 87 72 6 79 47 43 41 71 54 48 52 7 73 89 53 64 62 89 53 55 8 66 59 49 58 71 64 44 60 9 92 90 35 37 79 78 42 43 10 50 58 38 30 56 . 62 40 41 11 38 51 37 JS 51 63 40 46 12 43 51 42 37 59 68 44 41 13 46 54 65 86 54 64 59 74 14 90 73 56 58 86 71 59 58 15 51 50 34 46 s1 52 40 50 16 78 48 46 64 59 53 49 59 17 86 72 46 49 79 72 48 52 18 69 56 54 42 72 71 47 47 19 77 66 58 . 64 . 81 80 57 64 20 83 88 75 90 77 85 63 82 21 83 69 71 89 77 69 70 86

    ~..,
    '-"-      89    91        89         87         87       88    86     85 23        74    68        62         61         77       6    61     59 24        92    93        71.        84         84       88    71     73 25        94    93        87         69         89       87    83     63 26        74    83        51         46         78       91    43     46 27        93    42        40         35         60       49    43     38 28        91    92        59         78         86      88     66     69 29        93    93        40         57         91       91    41     46 30        93    a2        42        54          90      83     40     53 Averages for all days with data Ave    76.0   72.0     55.7       60.0        74.2   7 5. 0  56.2   59.0 Cases     30    30        JC         30         30      30     30     30 Averages for only those days with data fer toth stations Ave    76.0   72.0     55.7       60.0        74.2 7 5. c 56.2 59. 0 Cases     30    30        30        JO          30      JC     30     30

96 Table 5.2D Temperature April {F) 1977 .\ ~

                                                                           **1 l

i P03A P07A Time (EST) 'I ime (EST) -1 Day 0100 0700 1300 1900 0100 0700 1300 1900 _,\ 1 32 32 49 52 33 33 51 52 2 *4 7 47 63 48 48 48 63 53 .-, 3 38 36 49 50 37 35 49 51 I I 4 U1 41 47 51 41 41 48 52 5 37 33 31 34 36 32 . 30 33 6 7 8 30 24 29 28 33 35 47 31 39 30 JO 26 33 34 49 30 40 I. 23 35 29 30 24 39 31 9 19 20 51 52 24 2S 52 51 .. i 10 45 48 73 74 us 49 78 74 11 70 63 76 72 63 E3 80 75 \ 12 69 '64 74 75 61 60 79 74 13 70 65 62 52 64 62 67 57 l I 14 41 51 6C 60 44 50 - 60 58 .I 15 54 51 7i 70 53 52 69 69 16 51 52 73 66 53 54 77 69 17 59 60 81 74 61 E4 80 72 i 18 67 68 70 78 66 63 83 75 19 65 *74 62 67 64 59 72 66 20 63 61 68 67 63 61 74 67 21 63 66 67 62 63 66 67 61 22 60 43 54 53 62 50 55 51 23 50 50 62 49 49 50 62 58 24 33 42 46 42 44 43 48 44  ! (

  - c;     39     41      44     44
  .t. -                                    40      42       48    46 26       40     35      49     46        39      JE       54    49 27       32     52      6S     66        40      51       71    71 28       41     39      48     39        44      40       46    42 29       27     34      53     47        32      33       56    51 30       30     36      60     58        34      39       66    62          (
  'verages for all days ftith data Ave    45.6   45.9   58.C    54.8      46.4   46.3     60.3   56.2 Cases    30     30      30     30        30      30       30    30 Averages for cnly those days with data for toth stations Ave    45.6   45.9 58.0      54.8      46.4 46.3 60. 3 56.2 Cases    30     30      30     30        30      3C - )Q.       30

97 Table 5.3D Dew Point ( F) April 1977 P03A P07A Time (EST) 'I ime (EST) \' . Day 0100 0 700 1300 190 0 0100 OICO 1300 1900 1 29 29 31 34 30 30 32 34 2 36 45 56 42 39 45 58 43 3 34 27 ,_

                              ""C JO         34           29       24     28 4      30    31      43     48         30           32       46     49 5      32    29       23    25         32           ... c    26     25 r*                                                           ,(. J 6      24    10       14    10         22            11       16     15 7      17    30      30     28         19           30       33     25 8      19    10       17    15         21           14       19     1g 9      17    18      24     26         19         . 2J       30     29 10       27    34      46     41        30            37       52     48 11       43    45      48     45         45           SC       53     53 12       45    46      49     46         46           50       55     49 i     13       48    48      51     48         47           50       52     48
\,\. 14       38    42      44     45        40            41       46     43 15       36    33      41     47         35           35       44     49 16       44   33       51     54        39            3       56     54 17       55   51       58     53         54           c;c 58     53 18       57   52       53     53        57           53        60     53 19       57   50       58     55        58            52       56     54 20       58   58       60     64        56           56        61     61 21      57    56       57     58        56            55       57     57 22       57    41       51     4g        58           47        51     47 23       42    40       49     36        42           40        48     43 24        36   40       37     37        39           40        39     36 25       37    40       40     34        37           39        44     34 26        32   JO       32     26        32           34        32     29 27       30    30       44     37        28           32        47     44 28       39    37       33     33        40           36        35     33 29       25    33       30     33        30           31        33     31 JO       28    31       37     41        31           34        41     45 Averages for all days *ith data Ave    37.6  36.6    41. 0 39.8        38.2       38. 3       43.4   41.1 Cases    30    30       JC     30        JO           30        30     30 Averages for cnly those days with data fer both stations i'\ve  37.6  36.6. 41.C      39.8      38.2      .3 8. 3      43.4   4L1 Cases    JO    30       30     30        30           30        30     30

98 --, II Table 5. lE ) Relative Humidity May 1977 (3)

                                                                         .\- -1
                                                                           -1 P03A                               P07A Time (EST)

Day 0100 0700 1'.300 1900 0100 Time (EST) 0700 1300 1900

                                                                            *1 )

1 92 77 53 54 81 64 54 59 2 78 90 50 ~5 85 90 61 47 3 54 50 45 61 52 54 47 58 -1 4 58 89 86 8.4 56 86 84 83  :\ 5 90 89 65 65 87 86 66 61 6 70 85 46 b3 71 84 41 54 -'? 7 77" 77 66 68 68 78 50 52 I 8 97 66 52 57 91 87 43 33 9 69 73 56 75 68 73 56 67 10 95 94 57 72 93 92 47 50

                                                                            --i 11          93_  86     35      36         90      93      43    41     _/
  *-12          91   74     46      40         85      76      44    45 13          59   67     50      44         67      69 14           59   71     58      74         83      76 47 50 47 65      '\

15 73 44 33 40 69 [J 7 38 44 16 48 61 46 .46 48 62 48 52 17 62 66 55 49 62 72 62 71

                                                                         .i.

18 70 78 67 58 78 85 64 59 19 91 88 61 62 92 90 56 60 20 90 85 42 50 82 80 43 51 21 89 87 49 85 64 76 48 71 22 90 88 49 38 67 87 52 39 23 73 85 45 66 75 84 50 57 24 90 90 57 5 <j 87 83 50 57 _J 25 89 88 60 57 91 82 44 61 26 75 64 43 70 71 67 49 53 27 90 28 91 72 56 43 43 49 48 82 71 13 62 43 39 58 52 I

                                                                              .1 29           62   78     60      62         64     83       73    62 JO           65   63     48      63         69     65       49    54 31           61   91     58      69         62     94       60    63     J Averages for all days with data Ave         77.1 76.4 52. 5 58.4 Cases         31   31     31      31 74.6 31 77.4 31
51. 7 31 55.6 31 J Averages for only those days ~ith data for both stations Ave
  • 77.1 76.4 52.5 58.4 74.6 77.4 51.7 55.6 _

I _) Cases 31 31 31 31 31 31 31 31

99

                                  *rable 5.2E.

Tempe x:a t ure (P) May 1977 POJA P07A Time (EST) Time (EST) Day* 0100 0 700 1300 1900 0100 0700 1300 1900 1 35 47 72 69 43 53 74 71 2 64 53 61 51 62 60 61 57 3 43 51 68 65 50 52 68 64 4 57 51 59 62 55 51 59 62 5 62 60 73 71 62 62 75 75 6 65 56 67 62 65 57 74 64 7 48 49 52 43 51 49 63 48 8 29 41 53 47 32 38 59 51 9 35 36 46 39 36 36 50 43 10 28 36 52 45 32 36 59 50 11 28 38 63 60 32 35 67 66 12 39 53 68 66 42 49 71 70 13 61 59 72 75 57 60 77 76 14 64 60 67 62 54 58 80 71 15 60 62 81 77 61 61 80 76 16 66 65 85 81 65 64 86 83 17 70 67 SJ 77 71 69. 81 77 18 70 70 79 80 66 66 80 82 19 58 65 77 7 'd 62 69 87 79 20 62 65 86 84 67 68 89 82 21 60 69 87 68 72 71 87 74 22 60 68 85 79 68 69 84 81 23 72 67 85 75 69 70 84 82 24 66 64 80 79 68 68 83 79 25 59 64 80 76 62 65 90 78 26 '.63 63 81 ' 66 68 64 79 77 27 52 57 80 73 59 62 83 75 28 so 61 83 83 57 64 87 80 29 65 61 77 73 65 61 75 73 JO 65 63 81 68 64 62 80 76 31 65 58 78 67 66 59 82 72 Averag~s for all days with data Ave 55.6 57 * .5 73.1 67.7 57.6 58.4 75.9 70.9 Cases 31 31 31 31 31 31 31 31 Averages for only those days with data for both stations A. ve 55.6 57.5 7 3. 1 67.7 57.6 58.4 75.9 70.9 Cases 31 31 31 31 31 31 31 31

100 i I Table 5.3E Dew Point May ( F) 1977 .\

                                                                        ]
                                                                           ")

POJA P07A Time (EST} Time (EST) --, Day 0100 0700 1300 1900 0100 0700 1300 1900 I

                                                                              )

1 33 40 54 51 37 41 56 55 2 57 so 42 30 57 57 47 37 3 27 33 46 51 33 36 47 49 *-1 4 42. 48 55 57 40 47 54 57 ) 5 59 57 61 59 58 58 63 61 6 55 51 46 49 55 S3 49 47 . '\ 7 41 42 41 33 41 42 44 31 .J 8 28 31 36 32 30 35 36 22 9 26 28 32 32 26 28 34 32 ---, 10 26 34 38 36 30 34 39 32 11 27 34 35 33 30 . 33 44 42 ..\ 12 37 45 46 41 38 42 48 47 13 47 48 53 s1 46 50 56 54 1 lt 49 51 5.2 54 49 51 59 59 *1 15 51 40 49 51 51 lt 1 52 53 16 46 51 61 58 44 51 64 64 57 ii

                                                                       .i 17         56     55      65             57       60      67    67 18         59     63      67   61+       59       61      67    66    .. J 19         55     62      62   63        60       65      69    64 20         59     60      60   6.2       61       61      63    62.

21 S7 65 65 64 60 63 65 64 22 57 65 64 51 57 65 64 54 23 63 63 62 63 61 65 63 65 24 63 60 63 63 64 63 63 62 ( 25 56 61 65 60 59 59 65 63 26 55* 51 56 56 58 SJ 58 59 27 lt 9 48 55 52 53 53 58 59 28 48 lt s 58 61 48 51 59 61 29 52 54 62 59 S3 55 66 59 30 SJ 50 60 SS 54 so S9 58 31 S1 S6 62 S6 52 S7 66 58 _( Averages for all days with data Ave 47.9 49.7 54.0 51. 7 49. 1 50.9 56.3 53.6 Cases 31 31 31 31 31 31 31 31 .I Averages for only those days with data for both stations ) Ave lt 7. 9 49.7 54.0 51.7 49. 1 50.9 56.J 53.6 _ _) Cases 31 31 31 31 31 J1 31 31

c-* 101 Table 5. 1F Relative Humidity (%) June 1977 I I \ .. P03A P07 A Time iEST) Time (EST) i Day 0100 0700 1300 1-900 0100 0700 1300 1900 \ 1 88 88 89 92 87 92 93 91 2 84 85 72 7 '5 89 89 73 65 3 93 87 46 50 .94 78 49 51 4 93 81 42 47 76 59 44 55 5 81 90 79 75 81 92 73 80 6 89 90 81 . 60 88 91 75 62 7 72 75 66 57 82 83 52 58 8 92 87 88 87 92 80 90 90

 , .        9         80          74    69        70           85     76      59     61 I

i

 \    .

10 91 *as 60 75 94 82 52 69 11 68 87 78 81 70 90 82 81 I .. 12 90 90 89 81 91 94 89 80

         - 13         87          86    72         71          87     87      66     81 14         92          90    61         65          95     91      54     60 15         90          83    SS         56          92     83      48     57 16         90          79    55         57          91     76      54     55

,.i

 \.

r. 17 18 19 20 21 22 23 89 90 77 84 89 90 90 84 87 76 80 89 86 89 76 69 63 69 49 45 48 79 65 55 84 56 59 67 87 92 86 71 95 90 85 a8 89 74 81 93 84 86 61 64 54 71 48 45 49 78 55 51 76 58 53 64 24 89 89 79 75 90 93 68 78 25 90 86 81 75 95 93 74 63 26 92 90 47 44 96 96 48 48 27 90 90 52 61 . 92 79 46 60 28 88 84 68 88 93 88 74 89 29 80 75 67 53 79 69 57 53 30 90 73 89 88 71 77 91 91 Averages for all days with data

           ~ve    86.9         84.6   66.E    68.2          87. 2   84.4   63.5    67.2 Cases      30          30    30         30          30     30      30     30 Averages for only those days with data for both stations Ave    86.9         84.6 66 .. 8 6 B. 2          87.2 84. 4 63.S
  • 67.2
  \.  .*

Cases 30 30 30 30 30 30 30 30

102 [., Table 5. 2F Tempetature June (F} 1977 .\

                                                                         .. -1
                                                                         *-1
                                                                              .J P03A                           P07 A Time (EST)                    Time   (EST)        --,

Day 1 0100 60 0700 1300 56 57 1900 56 0100 62 0700 56 130 0 57 1900 56 I 2 50 48 53 53 50 49 55 57 .... , 3 36 40 66 67 39 45 70 67 4 44 53 81 85 52 62 83 84 \ 5 66 64 69 73 69 65 74 72 -, 6 70 so 57 55 69 54 61 56 I I 7 47 47 55 58 44 43 59 59 J 8 41 47 56 49 43 51 58 53 9 ti6 q5 5q 52 44 1+6 61 56 .., 10 35 41 61 62 39 48 66 63 11 59 55 65 68 60 56 62 66 .\ 12 60 51 54 61 62 57 62 61 13 14 56 50 52 53 65 67 61 62 55 56 55 57 68 75 65 70

                                                                         **1 15       47    52    75    71        51      57      80     72 16       52    66    83    82        57      67      83     83        -
                                                                        .)

17 70 72 78 76 73 70 84 75 I 18 67 69 74 68 67' 70 76 74 19 65 64 72 77 59 . 64 75 77 20 59 63 68 60 65 63 68 62 21 52 56 69 65 48 51 73 66 22 43 54 79 67 48 52 78 72 23 51 59 77 71 55 61 77 76 24 25 66 65 70 66 79 70 79 68 67 66 67 67 82 77 79 72

                                                                              .I I

26 50 54 s :2 81 54 56 83 82 27 57 59 84 81 62 66 87 83 I 28 62 73 80 71 65 71 80 72 ..\ 29 67 65 71 *75 65 65 72 76 3.0 55 65 67 71 61 64 68 70 I I

                                                                              *i Averages for all days with data Ave    54.9  57.0 68.8 67.4       57.0    sa.5    71. 8   69.2 Cases     30    30    30    30        30      30      30     30 Averages for only those days with data for both stations Ave    54.9  57.0 68. 8 67.4      57.0 58.5 71.8 69.2*

Cases 30 30 30 30 30 30 30 30 *.J i I I

                                                                           .. I
                                                                                   \

( - 103 Table 5. 3F

    • P03A Dew June Point (F) 1977 P07A
'                       Time (EST)                    Time (EST)
'. . Day 0100 0700 1300 1900 0100 0700 1300 1900 1 56 53 53 53 58 53 55 53 2 46 43 44 46 47 45 46 45 3 34 36 44 47 38 39 so. 48 4 42 47 55 62 45 47 59 67 5 60 61 62 64 63 62 64 65 6 66 48 51 41 66 51 53 43
     . 7       38    40     44   42         38     38     42    43 8       39    44     52   45         41     45     55    50 9       40    37     44   42         40     39     47    42
  ~    . 10       33    37     47   54         38     43     48    53 11       49    51     57   62         51     53     57    60 12       57    49     51   55         60     55     58    55 13       53    48     55   51         51     51     56    59
   . 14       48    50     5::  50         55     53     57    55 15       44    47     57   54         49     52     58    56 16       49    59     65   65         54     59     65    65 17       66    67     70   69         69     67     69    68 18       64    65     63   56         65     67     63    57 19       57    56     59   59         55     55     58    58 20       54    57     57   55         55     57     58    55 21       49    53     49   48         47     49     51    s1
  • 22 41 50 55 52 . 46 48 55 54 r .

23 48 56 56 60 50 57 56 63 24 62 67 72 70 64 65 71 71 25 62 .62 64 60 65 64 68 59 26 47 51 60 57 53 55 61 60 27 54 56 64 67 59 59 64 67 28 59 67 69 67 63 68 71 68 29 60 57 59 57 58 SS 56 57 30 52 56 64 67 52 56 65 67 Averages for all days with data Ave 50.9 52. 3 56.5 55.9 53. 1 53. 6 57.8 57.2 Cases 30 30 30 30 30 30 30 30 Averages for only those days with data for both stations Ave 50.9 52.3 56.5 55. 9 53. 1 53. 6 57.8 57.2

    - *- Cases    30    30     30   30         30     30     30    30

104 *-* Table 5.1G \ Relative Humidity July 1977 (%)

                                                                          ""l
                                                                              '*?

j P03A P07A Time --1 (EST) Time {EST} \ Day 0100 0700 1300 19..J 0 0100 0700 1300 1900 ) 1 76 70 56 58 71 71 47 48 2 93 87 57 52 3 92 68 64 63 89 77 85 50 48 *-1 71 63 62 \ 4 80 88 71 65 75 84 69 65 5 91 84 56 54 90 83 56 55 7 6 70 87 78 86 63 80 66 9g 82 84 75 76 58 72 58 80

                                                                            'j 8       92    87     57       88         91      91     58     79 9       88     85     65       73 10       86    69      53       68 89 76 92     54     56     *1 64     54     60   .. )

11 78 72 80 75 69 74 81 78 12* 93 89 66 59 91 91 75 60 13 14 15 89 94 81 84 82 80 54 66 65 56 . 70 73 87 89 85 89 76 78 54 64 58 57 77 73 J 16 84 90 74 78 83 91 69 75 17 90 89 63 73 90 91 61 60 18 91 89 71 70 87 90 63 68 19 83 79 62 58 83 79 56 62 20 78 80 6 4* 60 87 91 55 58 21 87 87 82 70 8.3 89 75 56 22 67 79 41 68 74 69 42 45 23 91 93 47 52 66 88 37 24 90 91 87 84 85 81 92 49 91 I\ 25 88 88 68 55 92 89 64 52 26 91 94 53 54 75 92 42 51 27 92 92 44 52 84 93 42 48 28 90 73 50 51 91 73 49 53 29 80 86 79 82 71 82 78 80 3-0 90 89 56 53 92 92 56 63 I' 31 67 67 60 67 68 81 61 60 J Averages for all days with data Ave Cases 85.4 83.0 62.9 31 31 31 65.7 31 82.5 31 83.0 31 59.9 31 62.2 31 j lvecages for only those days with data for both stations Ave Cases 85.4 31 83.0 62.9 65.7 31 31 31 82.S 83.0 31 31

59. 9 62.2 31 31 J

I

                                                                             ..l

105 Table S.2G Temperature (F) July 1977 P03A P07A Time (EST) Time {EST) Day 0100 0700 1300 1900 0100 0700 1300 1900 1 65 67 73 71 64 65 75 71 2 56 58 74 77 54 59 78 78 3 54 64 77 84 61 64 77 82 4 78 77 87 89 77 77 87 89 s 74 76 ee 89 75 77 89 90 6 78 78 87 86 73 78 90 89 7 73 77 77 69 72 79 81 75 8 66 67 82 73 63 65 84 75 9 70 64 7E 69 68 64 81 74_ 10 61 65 83 81 62 62 81 79 11 69 67 73 77 68 65 73 77 ( . 12 69 73 80 83 71 73 81 85 I 13 62 57 78 78 63 60 80 79 14 52 67 8E 90 59 68 85 89 15 84 81 84 82 81 80 90 83 16 74 73 81 77 7J 72 81 78 17 70 71 ~ 11 70 71 83 82 18 69 71 77 81 69 71 81 82 19 75 .8 0 87 89 75 79 91 90 20 83 78 85 87 79* 78 90 88 21 77 73 76 76" 78 75 80 79 22 64 58 83 77 62 63 83 79 23 58 S1 79 74 65 63 83 75 24 58 59 71 77 60 67 73 77 25 74 71 72 69 74 72 77 69 26 . 49 47 71 65 S6 53 73 66 27 45 47 71 ti 49 50 76 72 28 48 59 75 74 SS 63 80 77 29 62 64 71 70 67 67 73 73 30 57 61 79 81 . 62 65 83 83 31 74 71 78 74 7-4 71 80 75 Averages for all days with data Ave 66.0 66.8 78. 7 78.2 67.1 68. 3 8 1. 2 79. 4 Cases 31 31 JC 29 31 31 31 31 Averages for only th-0se days with data for both stations Ave 6 6. 6 67.J 78.9 78.2 67.6 68. 8 81.3 79. 6 Cases 29 29 29 29 29 29 29 29

106 Table 5.3G Dew Faint el (F) July 1977

                                                                              *-1
                                                                                   )

P03A P07A Time (E ~T) . Time (EST) -( Day 0 100 0700 1300 190 0 0100 0700 1300 1900 I 1 57 56 57 55 54 55 53 50 2 3 Q 54 52 71 54 53 73 58 64 76 57 70 75 50 54 54 54 57 63 57 68 .l 68 72 75 76 5 71 71 71 10 72 71 71 71 6 67 7 8 69 64 70 72 63 73 71 65 73 66 69 67 67 61 69 70 62

                                                              *73 71 67 72 68 69 l

9 66 60 64 60 64 62 63 57 10 11 12 57 6"2

           . 67 54 58 64 67 69 69 54 57 50 57 62 67 64 70 J

69 67 67 68 70 72 69 13 14 59 51 53 61 60 73 61 78 59 56 57 60 61 72 62 81

                                                                              ]

15 78 75 70 73 76 72 73 74 16 69 70 71 70 68 70 70 70 *--1 I 17 67 68 M M 67 68 69 66 .) 18 66 68 67 70 65 68 67 70 e; 19 70 73 72 72 69 72 73 75 20 75 71 72 71 75 75 72 71 21 73 . 69 70 66 72 71 72 62 22 53 52 Su 65 54 . 52 58 56 23 55 49 57 55 53 60 54 5!J 24 55 . 57 67 72 56 61 70 74 _( 25 70 67 61 52 72 68 63 51 26 46 45 53 48 48 51 48 48 27 28 43 45 45 51 48 55 54

                                  .11        44 52 48 54 51 59 51 58 j

29 56 59 64 64 58 61 66 67 30 54 58 62 62 59 63 69 31 62 59 63 61 63 65 66 66 60 j Averages for all days with data Ave 61. 4 61. 3 6 4. 5 6 5. 4 61. 4 62.7 65.3 64 *. 8 iI I Cases 31 31 30 29 31 31 31 31 ....J Averages for only those days with data for both stations Ave 61.8 61.7 6 5. 1 65.4 61.. 8 6 3. 0 65.7 65.2 Cases 29 29 29 29 29 29 29 29

107

                                        'I'a:Olc 5. 1 H Relative Buui<lity

(;;) August 1977 ( . i P03A P07A Time (EST) Time (EST) ' . Jay 0100 0 700 1300 1900  :) 100 \) 700 1300 1900 1 76 76 66 58 86 76 44 47 2 94 78 62 82 9"*J 73 53 73 3 89 91.l 72 80 91 91 61 68 4 65 84 48 92 76 91 49 83 5 87 33 63 gg 91 93 61 92 6 91 92 90 88 92 91 89 86 7 92 90 77 82 93 \j 3 7() 79 8 89 93 82 89 ~3 92 74 87 9 95 96 77 88 94 94 8') 91 10 90 90 79 73 92 93 75 74 11 92 82 83 80 94 9 .2 86 84 r* 12 83 92 50 65 93 93 52 55 13 93 85 65 83 32 82 61 77 14 88 74 51 58 90 g;j 43 58 15 93 92 44 74 S6 :3 6 42 64 16 70 85 83 85 79 88 80 83 17 76 67 60 Ii 0 84 95 59 53 18 94 89 52 65 95 93 48 49 1 '9 95 93 54 67 95 95 53 62 20 91 94 59 74 93 94 56 71 21 91 94 87 81 88 93 92 87 22 82 89 62 58 94 94 50 59 23 82 81 56 *93 77 81 59 79 24 93 94 47 60 95 95 55 66

     <.::;,   92     94       61     63              96       30       53      62 26       81     8:)      65     93              82       82       66      85 27       86     84       63     64              aa       86       64      67 28       78     80       59     94              77       82       57      92 29       93     91       81     75              94       95       70      77 30       93     94       54     71              95       96       5)      71 31       92     82       58     76              86       88       62      78 Averages for all days with data Ave    87.3  86.8 64.8 75.7                 89.3     89.2      6 1. 8  7 3. 1 cases    31     31       31     31              31       31       31      31 Averages for only those days with data for bo~h stations A.ve   87.3  86.8 64.8 75.7                 89.3 89.2 61. 8 7 3. 1 Cases    31     31       31     31              31       31       31      31

108 Tabl-= 5. 2H I'e mpe r:a t ur:e August ( f} 1977

                                                                                          .Ii-1 I
                                                                                              .l P03A                                         i?O 7 A*
                                                                                            *1 Time     (EST}                             Time        (EST)

Day 0100 0 700 1300 191) 0 0100 0700 130 0 1900 \ 1 67 65 73 74 62 62 76 75 2 52 60 75 71 53 63 73 74 "l 3 65 62 76 74 64 63 80 75 \ 4 75 69 87 71 71 67 87 72 5 70 72 81 72 67 70 82 72 . -\ 6 71 7,j 72 72 71 70 7.3 74 \ 7 68 71 76 73 70 72 78 73 .. ! 8 74 72 75 74 75 *7 2 77 74 9 64 62 75 72 66 68 76 11'\ I*, 11 71 70 76 76 71 70 79 72 77 ] 63 66 63 62 64 66 63 63 12 63 56 72 71 54 58 73 65 13 14 15 50 69 50 55 62 48 77 70 77 75 64 74 59 69 52 b 61 57 L. 79 74 74 65 'l 76 75 16 7*) 72 77 70 69 73 79 7 .'J 17 66 63 71 66 65 54 72 66 18 45 4g 70 62 48 Sij 68 64 19 41 42 70 66 43 45 70 63 20 55 48 72 '68 54 54 70 67 21 60 60 11 67 60 61 67 65 22 65 53 71 72 57 55 73 70 23 70 64 72 59 65 64 71 61 'II 24 58 50 69 61 56 49 71'

                                                                              '.J   63             I I

25 44 43 73 68 47 s1 73 69* 26 60 61 83 71 59 61 82 77 I 27 75 78 89 86 . 74 76 89 84 ( 28 80 79 88 73 79 76 89 75

                                                                                                   )

29 68 67 73 67 70 66 74 66 30 50 50 76 74 54 53 77 74 I 31 60 67 86 79 66 I 67 35 82 .I Averages for all days with data 1\.ve 6 2. 5 61. 5 75.4 70.5 62.S 62.7 76. 2 71.0 Cases 31 31 30 31 31 31 31 31 Averages for only those days with data for both stations a.ve 6 2. 6 61. 6 75.4 70.7 62.5 6 2. 7 76.5 71. 2 Cases 30 3*'.) 30 30 3J 3G 30 3J

109 Table S~ Jl:i

    • Dew Point August.

(f) 1977 P03A P07 A Time (EST) Time (SST) Day 0100 0700 1300 190 0 0100 0700 1300 1900 1 59 57 61 58 58 54 52 53 2 50 53 61 65 50 54 60 65 3 61 60 66 68 61 60 65 63 4 63 64 6*5 68 63 64 65 67 I

   . 5      66       67      67      68         65       68       68      69 6       68       68      68      63         68       68       70      69 7      66       68      69      72         68       70       68      71 I   .

8 71 7 'J 69 70 72 69 69 70 9 63 61 67 68 64 66 69 69 1 i) 68 67 69 67 69 68 71 68 11 60 60 58 55 62 64 59 5a (""- 12 58 54 52 58 52 56 54 49

.!   13        48       51      64      70         53       56       64    . 66 14        65       54      51      48         66       58       .5 2    49 15        48       46      54      65         51       53       52      63 16        60       67      71      65         62       69       72      64 17        58       52      56      52         60       53       56      50 18        43       46      51      5*,J     47       48       43      44
  • 1g 39 41) 52 55 41 44 52 SJ 20 52 46 57 59 52 52 53 58 21 57 58 '.'! 61 57 59 64 61 22 59 SD 58 56 56 54 53 56 23 64. 58 55 54 58 58 56 55 24 55 48 47 47 55 48 53 52 25 42 41 58 55 46 45 55 56 26 54 55 70 69 54 56 69 72 27 70 73 74 72 70 73 75 72 28 73 72 72 71 71 70 72 72 29 66 64 66 5g 68 65 64 58 3 ;) 49 4:3 58 64 52 52- 56 65 31 58 61 69 71 62 63 71 74 lverages for all days with data Ave 58.5 57.4 61. 9 62. 2 59.2 59. 4 6 1. 4 61, 6 Cases 31 31 30 31 31 31 31 31
     ~verages  for only those days ~ith data for both stations
     !\.ve  5a.5      57.4 6 1. 9 6 2. 3        59.3 59.4 6 1. 4 6 1.. 6 Cases     3*,;   30      Ji)     3')        3()      3 ;J     J*J     3 C>

110 Table 5. 1I

                                                                                    ***1 Relative  numidi~y     (3}

Sept. 1977

                                                                                      -i
                            !?03A                                P'J7A Time (EST)                        Time (EST)                 -i Jay 1

1j 1'J0 78

                      'J 700 13'JO    190 0     ,:; 1 Cu  0700      13JiJ    1900       l 92     86     95           d8     93        86       88 2        96       95     87     94           94     93        86       90     -,

3 4 88 91 95 90 56 64 79 81 92 85 96 94 57 63 79 81 II

> 84 97 81 81 d9 93 90 84 6 97 99 58 87 97 96 58 71 7 96 97 85 89 94 94 00 38 8 96 95 73 86 95 93 73 79 9 73 74 82 62 7 'd 72 74 57 -~

1-J 11 59 96 67 88 63 47 83 88 57 90 06 95 62 43 82 77 l 12 97 78 78 97 76 77 69 95 -~ 13 97 97 95 91 95 94 14 15 85 96 98 80 59 95 83 96

                                                  -94      96 75 94 54 92 78    J 8(.)             94       96 16           97       96     80     91           95     9 i.+     75       86       *1 17          96       97     93     93           95     94        95       89 13          92       98     84     92           86     93        78       93 19 .        91       95     85     79           90     95        87       79 20           82       93     82     76           80     S4        90       85 21           93       96     80     86           96     96        76       85 22           94       97     65     80           94     94        64       81 23           88       97     87     91           92     96        88       89 24           92       95     80     85           91     96        76       34 25           gg       35     62     89           86     90        61       78 26           94       79     65     65           96     94        56       60 27           69       75     71     73           75     95        69       81     __j 2-9          78       86     75     95           d8     97        67       88 29        1 00        99     70     79           97     87        66       73 3 ....v      92       91     90     96           81     88        8}       95

_) I Avera]es for all days wi~h data I\.ve 89.6 90. 7 76.0 85.5 88.3 91. \) 73.6 82.3 cases 30 *30 30 30 30 30 3.} 3 :J i I Averages for only those days ~iti data for both stations

   !\. ve   89.6     90. 7 76.0 85.5           88.3 9 1. 0        73. 6 82.3
as es 30 30 30 30 30 30 30 30 i
                                                                                       -)

II

111 Table= 5.21 Tern pe ra "Cure (P) Sep~. 1977 P03 f1 20 7A Time (EST) Time (EST} Day 0100 0 700 1300 190 0 0 1 0 (J 0700 1300 19t) 0 1 76 7) 74 69 76 71 74 72 2 67 68 75 70 67 69 74 71 3 63 57 74 67 63 57 73 7J 4 59 62 11 1:1 62 62 79 79 5 '" 69 68 66 70 70 69 67 6 49 46 73 66 54 52 73 70 7 55 58 72 66 57 59 76 65 8 57 60 71 71 54 61 71 70 9 68 69 72 70 67 69 73 67 1 '.) 66 61 65 58 64 60 64 55 11 47 53 70 59 52 46 72 60 12 46 56 64 57 56 57 66 56 13 56 57 59 60 57 59 61 59 14 56 39 67 6 r) 54 43 66 61 15 48 54 56 57 55 55 56 57 16 61 66 71 65 61 67 73 67 17 62 6D 68 73 62 62 68 72 18 67 67 72 68 69 67 74 61 1* 19 20 21 22 23 24 25 71 64 54 56 62 63 53 69 57 53 53 54 64 56 66 56 58 65 62 68 72 64 56 59 65 62 66 61 7v 63 53 57 61 64 58 7C 57 53 56 56 65 58 6.3 55 63 67 63 70 72 63 56 60 64 63 65 63 26 59 63 68 66 61 57 69 65 27 64 59 61 61 59 51 61) 58 2'3 62 60 63 58 5d 51 64 55 29 41 47 60 61 43 49 60 59 30 56 58 63 60 57 58 62 57

   \verages for all days with data Ave    58.9     58.9    66.6     63.5          6J. l      55. ~  67.9   6 3. 9 Cases     29       3)      29      29             3 i)      30      30     30
   ~verages  for only those days with data £oz both stations
   \ ve   58.9     58. 4 66.6       63.4          59.7 58.4         67.4 6 3. 2

( - Cases 28 28 28 28 28 28 28 28

113 Table 5. 1 J Relative Humidity (3) October 1977 P03A P)7A Time (EST) Time (EST) Day 0100 0 700 1300 1900 0 100 0700 130*J 1900 1 1 00 96 84 93 95 94 85 95 2 82 9*1 51 69 84 91 46 66 3 76 81 57 87 81 99 51 85 4 100 10') 66 89 100 99 48 82 5 70 94 80 75 66 91 77 93 6 65 59 69 72 86 100 59 75 7 1 00 1 0 I) 69 85 98 97 67 84 8 98 96 72 69 97 93 70 70 9 72 76 70 68 73 85 69 76 10 82 89 54 61 91 95 55 57 11 85 77 58 66 82 87 54 63 12 66 67 67 81 64 . 72 67 86 13 1 00 100 51 91 100 10 0 54 -94 14 100 99 51 82 90 -93 44 75 15 87 79 74 74 73 88 71 8 ') 16 75 84 78 62 84 90 56 64 17 100 93 48 53 99 84 47 52 18 75 74 81 84 82 80 90 93 19 83 85 78 90 92 , 94 . 63 94 20 100 10 ') 68 92 '100 99 61 85 21 85 96 48 . 73 76 91 49 59 22 97 88 45 81 95 81 45 78 23 71 69 73 78 68 70 74 76 24 84 96 52 68 84 93 54 70 25 76 97 73 99 75 95 73 95 26 98 97 97 92 98 99 93 91 27 100 99 85 92 97 98 76 88 28 98 95 68 95 99 96 48 83 29 100 99 75 87 99 99 85 81 30 1 00 99 81 74 100 10 0 77 65 31 87 78 69 96 83 77 71 94 Averages for all days ~ith data

 ~ ve   87.4  88.9     67.4 79.9         87.S    90.9     63.9    78.8 Cases     31    31      31      31         31      31       31     31 Averages for only those days with data for both stations Ave    87.4  88.9     67.4 79.9         87.5 90.9        6 3. 9 7 8. 8 Cases     31    31      31      31         31      J 1      31     31

114 **1 Table 5.2J I Tempe r:-a tu re { f) October 1977 .il PIJ 3 ~ P<')7A Time (EST) Time (EST) Day 0100 0 700 1300 1900 u 100 0700 1300 190 () *-1 1 57 51 53 50 57 51 53 51 2 49 42 57 52 48 42 58 51 *-1 3 47 48 60 54 43 36 60 51 I 4 36 33 62 51 37 40 65 53 ) 5 53 53 61 57 53 52 60 54 6 7 55 37 52 31 54 51 50 49 46 36 39 34 56 52 47 50

                                                                                 **i 8       49     55        57  50            48      56       57      50 9       48     48        50  52            47      47       49      48 1 ri       48     42        61  59            43      42       61      57
   ,1         53     45       47   47            52      45       47      47
   ,2         46     46       IP   40            46      43       47     38 13         26     24       53   43            30      28       55      44     -*1 14         30    27         57  49            37      38       61     ,49          ).

15 53 51 54 49 49 48 55 48 16 40 49 44 43 38 36 46 39 17 27 26 57 56 28 33 57 57 18 54 51 49 50 47 48 46 48 19 50 48 53 48 48 44 54 44 20 21 22 23 34 45 53 46 34 41 50 46 57 68 53 50 45 59 46 48 34 46 51 46 35 43 49 59 6 7-53 47 62 47. e1 45 50 48 24 48 47 72 65 48 47 7, 64 25 61 57 64 58 61 57 64 61 26 58 51 50 49 57 55 53 49 27 48 46 55 51 48 48 58 54 28 50 46 57 46 so 48 63 50 _j 29 33 31 51 44 39 37 5, 48 3 !) 31 32 52 49 40 39 54 56 31 49 48 64 61 49 SC 63 62 l Aver:-ages for all days with data l'\ve 45.5 43. 3 55.5 50.7 45.3 43.7 56.3 50.7 Cases 31 31 3, 31 31 31 31 31 Averages for only those days with data for both stations Ave 45.5 43. 3 55.5 5 *). 7 45.3 43.7 56. 3 50.7 Cases 31 31 31 31 31 31 31 31 _J I

115 Table 5. JJ Dew Point (F) October 1977 P03A P07 A Time (EST) Time (EST) Day 0100 I) 70 0 1300 190 0 0 100 0 700 1300 1900 1 57 50 49 48 55 49 49 49 2 43 39 39 43 44 40 37 40 3 4'J 42 44 50 37 36 42 46 4 36 33 50 413 37 40 44 48 5 43 52 55 49 42 50 53 51 6 44 38 44 42 42 39 42 39 7 37 31 41 45 35 33 41 46 8 49 54 48 41 47 54 48 41 9 39 41 41 42 39 42 39 41 1Q 42 39 44 45 40 40 44 42 11 49 39 33 36 47 41 31 35 12 35 35 37 34 34 35 37 34 [" 13 26 24 35 4*) 30 28 38 40 14 JG 26 39 45 34 33 39 41 15 49 45 46 41 41 44 45 42 (. 16 33 36 37 31 34 34 31 28 17 27 24 37 39 27 28 37 39

. 18        46      43       44     45           42       42      43     46 19        45      44       46     45           46       42      44     43 20        34   .34         46     43           34       35      45     42 21        40      4i')     I+ 8   51           39       41      48     48 22        52      47       32     40           50       43      32     4.J 23        37      37       42     42           36       36      42     41 24        44      46       53     55           43       45      53     54 25        54      56       55     58           SJ       55      55     60 26        57      50       49     47           57       55      51     47 27        48      46       51     I+ g         48       48      50     50 28        49      45       47     45           50       47      43     45 29        33      )1)      44     4 IJ         39      37       46     43 30        31      32       47     41           40       39      46     44 31        45      42       54     60           44       43      54     60
  ~verages  for all days with data Ave    41.7   39.9      44.3    44.5        41. 5    41. 1   4 3. 5 4 4. 1 Cases     31      31       31     31           31       31      31     31 Averages for only those days           ~ith data for both stations Ave    41. 7  39. 9     44.J    44.5        41. 5 4 1. 1 43.5 4 4. 1 Cases     31      31       31     31           ]1       31      31     31
                                                                                 -1.

116 i

                                                                               .i Table 5. 1 K                               !

Relative Humidity (%) November 1977

                                                                                 -.l P03A                              P07 A Time (EST)                                                *-1 rime {EST)

Day 'J 10 0 ) 700 1 30C . 190.0 0 100 0700 1300 1900 I 1 86 84 71 87 95 89 77 94 2 78 67 52 65 79 75 57 66 .-. 3 69 73 68 84 77 81 74 90 4 92 84 44 41 97 8 9' . 45 44 5 59 79' 67 73 70 83 73 81 gt\ 10*. 6 7 92 89 92 77 85 86 93 93 87 93 76* 91) 94 91 ] 8 92 93 76 86 94 94 74 80 9 86 86 80 77 90 91 77 88 10 73 6 \) 88 82 85 62 95 88 11 74 58 85 68 70 65 65 74 12 81 9 7' 52 56 91 79 49 53 13 63 82 56 56 72 87 55 66 14 71 36 63 77 74 88 65 77  :*1 15 76 76 69 66 75 74 69 57 16 85 75 64 63 86 77 53 63 17 68 82 61 69 80 95 61 76 18 78 69 66 64 75 66 66 69 19 63 .g 9 66 91 . 96 97 67 91 20 87 83 79 79 82 89 76 83 21 58 69 71 66 55 71 69 66 22 65 78 64 61 70. 84 62 61 23 68 89 98 77 72 "86 96 82 24 75 69 70 67 78 71 68 78 25 74 95 69 74 80 95 77 72 26 84 79 59 55 92 9 \) 57 82 1 I 27 72 61.t 84 89 72 68 82 86 28 73 72 69 70 78 73 71 70. .J 29 79. g1 65 87 78 89 68 81 JG 95 95 92 98 91 96 96 96 Averaqes for all days with data Ave 76.9 80. 4 69.8 73. 6 81. 4 8 2. 9 70.0 7 6. 8 Cases 30 30 30 30 JO 30 30 30 Averages for only those days with data for 'both stations A. ve 76.9 s.:). 4 69.8 73.6 81. 4 82.9 70.0 76.8 Cases 30 3J 30 3J 30 30 3') 30

117 Tahle 5.2K 1'emper:ature (f) 1-PO:) 3A Time (EST) November 1977 P17A* Time (EST.) Day 0100 I) 70 0 1300 190 0 0 100 0700 130*J 19.J 0 1 61 58 63 59 61 58 63 60 2 59 57 69 63 61 57 71 66 3 60 62 69 64 61 62 69 65 4 57 SJ 59 55 60 56 65 55 5 47 48 58 57 47 48 60 57 6 52 53 65 61 SJ 55 64 61 7 58 57 63 60 57 57 63 60 8 57 56 62 59 56 56 64 62 9 61 5g 65 64 6 iJ 60 65 63 1C 44 38 36 37 45 39 33 34 11 37 37 3] 36 37 36 34 35 12 33 28 35 32 31 27 36 JJ 13 30 26 36 34 26 25 36 34 14 34 34 42 37 34 34 41 39 15 c.+4 47 56 53 43 48 54 53 16 53 48 49 48 52 46 49 45 17 47 41 44 42 39 37 43 38 18 40 40 39 40 38 37 37 34 19 40 31 41 39 25 24 39 38 20 40 44 53 58 38 43 53 56 21 45 3 4* 36 37 42 32 34 32 22 34 31 34 33 29 27 33 32 23 32 34 36 39 JU 33 35 38 24 39 38 37 37 37 37 35 33 25 34 31 34 28 31 30 32 26 26 24 25 26* 25, 21 22 23 15 27 18 18 26 25 14 16 24 24 28 3".J 28 29 27 29 2.6 27 24 29 19 9 32 22 18 12 31) 24

        .10      10      18         33    34          21      24        32     33 Averaqes for all days with data Ave    41.J 39.5 4 5. 4 43.5              39.9     3 8. 8  c.+ 4. 8 4 2. 1 Cases    30      30         30    3*]         30      30        30     30 Averages foe only those days ~ith data for *both stations
        .a.ve  41. 3 39. 5 45.4 43. 5             39.9 38.8 44.8 4 2. 1
  *-*. Cases    30      3J         3 ')  3J          3 (:    30        30     3J I   -

I....

                                                                             -1 118                                                                                I Table 5. 3K Dew Point     (F)

November 1977 l i P03A P07 A Time (EST) Time (EST) ~ 1 1Jay J 10 0 on') 1300 19:) 0 0 100 0700 1300 190 0 \ ! 1 57 54 53 55 59 55 56 58 2 53 47 51 51 54 49 55 54 l 3 50 53 58 59 54 56 6:) 61 4 55 49 36 31 ' j 59 53 43 33 5 33 42 47 49 38 44 51 52 6 49 5) 55 57 51 52 57 59 1\I 7 56 54 56 56 55 55 57 57 I I 8 55 54 54 55 55 54 55 56 9 57 55 58 56 57 57 58 59 10 36 25 33 32 41 27 32 31 11 30 24 29 27 28 26 23 28 .. I 12 28 28 2:') 19 28 22 19 17 13 19 14 25 22 30 22 30 24 31 18 26 21 31 21 30 24 32 ] 15 37 40 46 42 36 40 44 38 16 48 41 37 36 48 40 32 33 17 37 36 31 32 34r 36 30 31 18 34 30 28 29 31 27 27 25 19 28 28 30 38 24 23 29 36 20 36 40 47 51 33 40 45 51 21 31 25 28 26 27 24 25 22 22 24 25 23 21 21 23 22 21) 23 23 31 35 33 22 29 34 33 24 32 29 28 27 JO 28 26 27 25 26 3:) 24 22 26 29 26 18 26 19 19 13 11 19 19 10 11  ! 27 10 8 22 22 7 7 19 20 1. 28 22 20 20 19 23 18 19 16 _J 29 13 7 21 18 12 10 21 19 3G 9 17 Jr) 33 19 .23 31 32

   ~verages   for all days with data
   !\ ve  34.4 33.8 35.6 35.3             34.5     33.9   .3 5. 2  3 5. J Cases      ]'.)  3*)    ]!J   J;')        30      30       3 ')    30 Averages for only those days with data for both stations Ave    34.4 33.8 35.6 3 5. 3           34.5 . 3 3. 9 35. 2 35.0 C:ases     30    30     30    30          30      JO       JO      3;)

j

119 Table 5.11 Relative Humidity (~) December: 1977 PO ~A P07A Time (EST) Time (EST) Day 0 10 !) \) 70 0 1300 1goo G 1 OJ 0700 130:') 191C 1 96 89 84 82 95 95 91 87 2 67 63 69 65 67 68 78 65 3 72 69 69 65 76 77 70 69 4 69 69 52 59 72 91 54 63 ' 0 5 72 71 71 66 75 77 86 72 6 72 74 86 88 75 73 92 91 7 80 62 84 75 84 66 86 79 8 82 75 82 91 82 77 85 93 9 84 82 81 92 87 87 90 92 1 f* 88 84 87 90 93 89 94 93 11 89 88 84 70 91 91 82 75 12 68 64 61 71 70 66 62 72 13 77 32 80 96 78 89 82 96

 -**                                                          ?

14 94 93 87 84 96 95 88 92 15 83 89 73 87 85 89 78 86 16 87 79 57 72 87 SU 60 73 17 83 78 76 85 84 76 84 85 18 97 96 85 84 92 92 87 87

e 19
       . 20 21 22 85 86 89 87 86 95 86 81 74 92 90 76 81 94 8 ;J
                                            . 59 87 89 86 90 9C 96 82 87 79 91 83 74 84 94 93 57 23         55        54      66      73         52        55      60      79 24         92        88      90      9:)        94        89      89      86 25         75        69      79      78         b9        78      75. 80 26         79        81      78      77        85         82      85      90 27         68        72      64      66        84         83      72      72 28         76        75      91 . 63        81         85      90      75 2g         69        88      71      76        79         89      75      82 3 \..!~    96        95      73      82         93        97      77      85
\'.. 31         91        90      75      76        93         9 ()    71      79 Averages for all days with data Ave     80.8     79.6 77.0 78. 1            82.8       8 3. 3   79.6    81. 4 Cases      31        31      31      31        31         31      31      31 Averages for only those days vith data for both stations Ave     80.8     79.6 77.0 78. 1             82.8 83.3          79.6 81.4 Cases      31        31      31      31        31         31      31      31

120 I Table 5.21

                                                                                           ....i Temperature         ( F)

December 1977

                                                                                        ,: 1 I

P0.3A P*J7A Time (EST) :rime (EST) - \ Day J 100 1 0 700 1300 190 0 \.i 100 G70'J 13 )') 19) c, I 1 36 39 38 38 .3 4 36 36 35 2 34 36 37 3T 32. 33 33 35 3 33 31 32 32 31 28 31 30 4 29 29 34 3:) 28 23 32 28 5 JC 3 *)~ 30 30 27 27 28 28 6 28 24 25 20 26 22 24 17 r*'

                                                                                        . II 7       25     28       22      13            22         24       20      11       . _J 8        5     12       18      22               4       11       1S      21 9       25     14       11      19            24         11       10      17 10 11 22 11 18 11 23 18 17 13 20 9

10 9 18 15 t3 13 _J 12 18 31 39 39 17 31 33 37 -*-,\ 13 38 37 40 36 36 36 38 35 14 36 36 35 35 35 35 34 33 15 36 34 36 35 34 32 35 34 16 35 34 45 44 34 34 4 .5 43 17 42 44 48 *48 41 42 45 45 . .I

                                                                                      *1 18        40    41        42      39            40         39       41      4*J 19         39    38        39   . 39            37         36       39      37 2'.)       39    37        38      29            38         36       36      26 21         25    21        24      33            19         20       23      27          .I 22         32    28        24      27            31         27       23      27 23         33    33        37      35            33         32       39      33 24         27    26        38      37            26         26       39      37            i 25         25    16        12      10            24                                    --'

15 11 3 26 10 12 14 17 8 11 1D 11 l 27 16 16 18 . 15 15 15 l 17 14 28 8 13 19 24 5 9 18 22 . ,! 29 . 26 20 27 26 21 19 28 25 30 31 18 8 23 9 31 26 21 28 20 10 23 19 29 21  : 'i 27 28 Ave.rages foi: all days with data

   ,\ ve   26.7   26.5     29.7    28.7                                                       i 2 5. J        24.8     28.4     26.3            )

Cases 31 31 31 31 31 31 31 31 Averages for only those days with data foi: both stations Ave 26.7 26.5 29.7 23.7 25.0 24.8 2a. 4 2 6. 8 Cases 31 31 31 31 31 31 31 31

121 Table 5.JL De"' Paint (F) ("'*. P03A Time (EST) Dece.mber 1977 P07A Time (EST)

i.  ! Day 0100 0 70 0 1300 1900 010J 0 70( 1 J!)i) 1900 1 34 36 34 33 32 34 34 32 2 24 24 28 26 22 24 27 24 3 25 22 23 21 24 21 22 21 4 2*j 19 18 17 20 21 17 16 5 22 21 22 2;') 2J 21 24 21 6 20 17 22 17 19 15 23 15 7 19 16 18 6 18 15 16 6 8 1 5 14 19 -J 5 14 19 9 20 9 6 17 21 8 8 15 10 19 13 19 14 19 8 16 11 11 8 8 14 5 6 7 11 7 12 9 20 27 30 8 21 26 29 13 31 32 35 35 30 33 33 34 14 35 34 32 31 34 33 31 31 15 31 31 28 32 31.) 29 29 3*)

16 32 28 31 35 30 28 32 34 17 37 38 40 43 36 35 4*) 41 18 40 40 37 35 J7 36 36 36 19 35 35 31 34 33 33 32 32

  • *1 2i}

21 22 23 24 25 26 JS 22 28 18 25 18 5 36 17 23 18 23 8 7 36 22. 17 27 35 7 9 28 28 15 28 34 11 5 35 15 28 17 24 15 4 35 15 24 18 23 9 7 34 19 16 26 36 5 6 25 26 14 27 33 3 9 27 7 9 8 5 11 10 1') 6 28 2 7 17 14 1 5 15 16 29 17 17 19 . 19 16 16 21 20 30 17 22 23 16 19 22 22 18 31 5 7 20 21 8 17 19 22 Averages for all days '1'ith data Ave 21.4 20. 8 23.2 22.5 2::;. 4 20. 3 22.6 2,. 7 Cases 31 31 31 31 31 31 31 31 Averages for only those days with data f8r both stations

       !'!. ve 21.4  20. 8   23. 2 22.s        20.4 2 o. ,3 22. 6 21. 7 Cases     31     31     31     31           31       31       31      31

122 VI. WIND SPEED .AND DIRECTION Wind speed and direction are measured at a height of

                                                                          .;__:_\

about 3 met::e:r:;s with an R. M. Young Co. Model 1201 3-cup. i ' anemometer and a WeatherMeasure Model 104 wind vane, respectively, and re.corded on twin Esterline-Angus recorders. Wind speed is reported to the nearest mile per hour and wind direction is reported to the nearest degree. For tabulation, digitized data are reduced to hourly averages of wind speed and direction. i

                                                                           '_,/

The tabulated wind data are given in terms of percentage frequencies of joint occurrences of wind speed and direction in assigned categories. The categories for wind speed are in miles per hour and are: calm (less than 1 mph), 1-3, 4-7, 8-12, 13-18, and 19+. Wind direction is tabulated in 10-degree categories and in 22.5-degree cate~ories. The 10-degree categories are used in the tabulated data and the 22.5-degree categories are used in the wind roses. There is also a category for a variable direction, the criterion for which is that the range of wind direction during an hour equal or exceed 180 degrees. Joint percentage frequencies are determined by dividing

                                                                             . _,r the number of joint occurrences in each pair of categories by the total number of hours of data listed at the bottom of each table.        The average speed for each direction is determined by adding all wind speeds for a particular direction category and dividing by the number of occurrences.

123

  • The average overall speed is the average of the speeds fGr all directions (weighted by frequency of occurrence) and zero mph (weighted by the frequency of calms). For months with a large amount of missing wind direction data and much more complete wind speed data, a second listing of percent calm and overall average speed is given, based on all wind speed data for the month.

A graphical portrayal of wind data is also shown for each month in the form of a wind rose graphed by ccmputer. In the wind rcses, the length of each line extending from

  • , ...~ the circumference of the center circle is proportional to the percent of time that the wind was from the directior:..

The lines are 22.5 degrees apart, and the lengths of alter-nating black and white sections of each line are proportional to the percent of tine the speed was in a particular category as given in the legend at the bottom o= each figure. The percent of calms is also shown .

124 --1 Table 6. H Palisades Network Percentage Frequency of li ind Direction and Wind Speed at Station !? 0 3 ~ for January 1977 ti* '.1 l qind f 11i n d Speed, miles per hour ,,  ;'. f .~veraqe I'

!J ir::ection        I       1-3           4-7         8-12        13-18      19+                                      j Total I Speed
                   +

010 l o.. 9 0.2 o. 0 o.o o.o 1. 1 I 3.4 020 rno o~ o I. I I 0.2 D.6 0.9 0.5 D.O

o. 6 0.8 o.o o.. ()

0.4 o.o

o. 0 o.o o.o o.o 1.9 0.6
                                                                                       ,*5 I
7. 1l
1. 2 2.7 t

I 050 l 0.6 0.4 o. 0 n.o 0.0 o.q  !  ::i. 0

                                                                                                                 '--~

O?O I 0.4 0.4 o. 0 o.o I). 0 0.8 l 2.7 I

     , 070           I      i). 4         o.o             o.o      o.o      o.o      o. 4     l        2. 0 0 g (')       I      0.2            0.4             o.o      (). 0    o.o      0.6      I        3.0 oqo           1      O.A            0.0             0.0      (). 0    o.o      o.g               1.7 i

o.o o.o I . ,i 100 I o. 0 o. 0 o.o 0.0 I o.o 110 I O.? I}. 0 O.D o. 0 o.o 0.2 1. 2 I 120 I 0. 6 0.0 o. 0 I). 0 0.0 I). 6 I  ?.4 -1 130 I o.o o.o o. 0 o. 0 o.o o.o I o. 0 '.) 140 I 0. F. 0. '2 OeO o. 0 o.o o. 8 I 2.8 1 c; 0 ~ (). 8 0. '2 0. 0 o. 0 o.o o.q 1 2. 2 160 I o.o '). g o. 0 o.n o.o 0.9 I 5.8 170 0.6 5. 3

                    'I      o.o 2.3       0.6     !1. 0     8. 7     I        6. q 1'30         J                     3.6             4. 0      0.2      o.o      7.7     I         q.1 1-<lO                 0.2            ,
  • 1 1.5 o.o o.o 2.8 I 7.7
     ?00            I       o.o           0.4             o. 8      o.o     o. 2      1.3     I         9.q 210           t       0 * .2        0.2            2
  • fi o.o 0. /. 3.2 q.9
o. 2 '
      ?20                                                                                     1 I        0.0           0.8             2.3               o. 0      3. ?. I         g_g
     '230                   0.0           0. 2            .,
  • 5 '

248 2 50 I I o.o o.o 0 .. fi O.A

                                                       . 1. a 0 .. 6 1.3
5. 3 6.2 O.B o.u 0.8 1.8
8. ,

8.3 1 I l 1 3. 6 1 4. 0 14.6 260 I 0.4 0.6 1. 1 5.7 1., 8. q 13.8 I 2 "?I) I o.o 0 .. g 1. 7 3.2 .... ., 6.A I 13. g I 2 ~o l o.o o. 2 1. 9 o.g o. 0 3.0 l 11.? 2qo l o.o 0.6 O.B 2.R o.. 4 )

     ~00           I       0.2            0.9            2. 1       4.3     o. '2 4.5
7. ., l 1 ., 3.?
                                                                                                    , 2. 1        .   ,
                                                                                                                     */

310 1 o.o 0. '2 2.5 0.8 o.o 3.4 l 1 o. 3 3 7. 0 I 0.0 0.6 ,* 3 0.6 o.o 2.5 1 0. () 3.'30 340 t I 0.2 o.o 0.0 0.2

                                                         .,
  • 1
o. 4 o.o
o. 0 o.o o.o 1.3 0.6
                                                                                             'I J
                                                                                                       'l.5
g. ,

350 1 o.o o. 0 0.0 o. 0 o.o o.o 1 o~ o 360 I 0.2 0.0 o. 0 o.. 0 o.. 0 0.2 l '2. 11 Variable I o. 4 0.0 o. 0 o.o 0 .. 0 0.4 I 1. 2 Tot;:i l 9.2 20.6 3 Co 9 32.5 5.1 98.3 1 0. 3 Percent Calm: 1. 7 100.0 Note: Sensor height is 1 0 feet. Tabulated values are percent Of 530 hours of data.

125

                           'rable       6.2A        Palisades Network
  • Percentage T:'requency o'f Wind Direction and Wind Speed at Station P07A for January 1977

" wind I Wind Speed, miles per hour f i'\.verage Direction I 1-3 4-7 8-12 13-18 19+ Total I Speed

                        +

010 I o.o 0.4 o. 0 o.o 0.0 o. ~  ! 4. 8 020 I 0.5 o.o o. 0 o. 0 o.o o. 5 I 1. !l 1)1 0 I 0.4 0.,4 0.2 o.. 0 o.o O.Q f. 4. 2 04 0 I 0.7 0.4 0.2 0" 0 o.o 1.* 3 I 3. !l l 050 I o.g 0.0 ('). () 0.0 0.0 o. 9 I 1. '2 0 'i 0 I 0.0 o.o o. 0 o.o o. 0 0.0 I o. 0 G70 I 0.2 (). 0 0.0 o.o n.o o. '.2 I 3. 0 OR 0 I o.o o.o o. 0 o. 0 o.. 0 o.o I o.o

   '*       090          I       0.0          I) .. 0     o. 0        o.o        (). 0      o.o    I       o.o 100        I        0.2          o.o         o. 0        o.. 0      o. 0       o. 2   I       1. R 110         I        0.7          o.o         o.o         o. 0       (). 0      0.7     I      1. 8 120         I        0. L1        o.o         0.0         o.. 0      o. 0       0.4    I       1
  • ll 130 I 0.4 o.o o.o o.o o.n 0. 4 I  ?. 9 140 I 0.4 0.0 o. 2 o. 0 o. 0 0.5 1 s. '3
'1 150         I        0.9          o.o         0.2         O.. '.'    o.o        1. 3    I      4.9 l'          , Ii 0      J        0. 11        :J. 0       o. 0        o. 0       o.o        0.4    I       2. 1 170          I       0.2          ., * '3     o. 9        0.:?       o.n        3. 1   I       f... 7
  • o.o no l 0.2 4.9 2. 2 o.. 4 7.6 I 7 .. 0 1qo I ().?. 4.7 1. 6 () .. 0 o.o 6. 5 I 6.0 2 00 I 0.7 s .. 1 1.3 0.2 o. 0 7.2 I 5 *.g 3.,

2" 0 2?.0 1 I ,. , 0.5 1. 0.9 6 0.7 0.5 0 .. 2 o.o n.o o.o 2. 5 I I 6.6 5 .. 5

            ? -~ 0      I        0 .. 0       1* 1        1.4         (') ... 0  o.o        2. 5    I      A.,4 240         I        o.u          ,
  • 4 2.7 0.4 0.0 4. 9 I 9.6 250 I 0.7 1.3 2.7 1.3 o.o 6. 0 l 9.0
            ?. 6 0      I        0.2          1. 3        2. 7        0.9        0 .. 0     s .. , I       q.6 270         I        0.9          3.1         6.7        2.7         o.o      13. 6    I       0  *4 2qo         I        0.2          2.0         6.5         1. 3       0 .. 5   , 1. 0   r     10.2 2qo         I        0.2          0.J         1.6        ..,
  • 4 o.o 3.c:i 1 1 o. 5 300 I (). 2 0.4 o.s O~ 9 0.0 2.0 I 11. l 310 I o.o 0.4 1. 3 o.u o.o 2.0 I 9.9 320 I o.. 2 0.9 1.4 0.4 o.o 2.9 l 9.3 310 I 0.5 1* 1 0 .. 2 o.. 0 o.o 1. 8 I ti. :::!

340 I 0.5 0.7 0.2 o. 0 o. 0 1 .. 4 5.1 350 1 o.o 0.4 0.0 o.o o. 0 0.4 5~ 9 160 I o.o 0.2 o.o o.o o. 0 0.2 5.7 Variable 1 ~. 4 o.o o.o o.. 0 o.o 1. 4 ".3

.i Total              14. 3         34.9        36.0     ., 1. 2        o. 5     96.9             7.5
   *.*-                                                                   Percent Calli:    3.1 10 0. 0
  • Note: Sen.sor height is 10 feet. Tabulated values a ,..o percent of 553 hours of data.
                              ~~

126 Fig. 6.lA \ WIND ROSE - JANUARY 1977. PALISADES NUCLEAR PLANT - STATION P03R

                            -N                        *...J
                                                      *:. l
                                                          ""\           I
                                                       '        \
                                                                 \

I

                                                         ' _j E .}

[

                                                                   \
                                                             ..    ['
                                                            '       I I        '

(;:'\ UINO SPEED IN MILES PER HOUR 1-3 a-12

          ~~---===4-=7=-----==13-=18=-----

19+

 '                                Fig. 6. 2A_                  127
 . ""                   WIND ROSE ~ JANUARY 1977
  • PALISADES NUCLEAR PLANT - STATION P07R N

i . l . i

  "        j E
 *                    (;:'\
                              \lIND 1-s SPEED IN MILES PER HOUR a-12
                      ~---====4-=7=---=1=3-=18~--

19+

128 Table 6. 1B Palisades Netwock

                                                                                          ,--1 Percentage Frequency of wind Direction and Wind Speed at Station P03A for February 1977                                        * ~.

Wind I ~ind Speed, miles per hour I Average Dicection I 1-3 4-7 8-12 13-18 19 + Total J Speed

           -1 010      I      0.2           o.s        0.7      o.o     o.o       1. 4   I    6.8    --,   I 020      I      o.o           0.7        0.2      0.0     0.0       o. 9   I    6.2          I I

030 I 0.3 0.2 o.o o.o 0.0 0.5 I 3.2 040 I 0.3 0.2 o.o o.o o.o 0.5 I 2.7 0 50 J 0.7 0.2 0.0 o.o o.o 0.9 l 2. 1 "1 060 J 0.9 o.o o.o o.o o.o 0.9 I 2.4 ./ I 070 I 0.2 0.2 0.0 o.o 0.0 0.3 I 3.9 (*:*" 080 I 0.2 0.7 0.3 0.0 o.o 1. 2 I 5.9 090 J 0.3 0.3 0.5 o.o 0.0 1. 2 I 5.4 100 I 0 * .3 0.0 0.2 0.0 o.o o~ 5 l 4.0 110 l O.J o.o 0.3 0.0 o.o 0. 7* i 5.6 .:'-\ 1.20 I o.o o.o o. 0 0.2 0.2 0.3 l 17.1 ' l 130 I 0.3 0.2 0.5 0.3 o.o 1. 4 I 7.8 -- > 140 J u.O 0.5 0.7 0.5 o.o 1. 7 I 9.9 150 I 0.3 o. 3 0.2 0.3 o.o 1. 2 l 7.0 160 170 180 190 200 210 220 I J l I I I I o.s 0.7 0.5 042 o.o 0.2 o.o o.s

1. 4 2.8 0.7 0.9 lo 0 0.5 Oa7 3.5 3.6
1. 2
o. 5
1. 2 1.6 0.0 o.o
0. 2 0.2 3.5
2. 8 2.4 0.0 o.o
o. 0 0.0 0.2 o.o 0.0
1. 7 5.5
7. 1*

2.3 5.0 5.2 4.5 J I I I J I I 6.0

8. 1 7.7 8.3
13. 4
11. 2 12.1
                                                                                         .\'*--*;

I I 230 l 0.0 o. 9 5.2 2. L 0.3 8.5 J 11.3 _)

                                                                                                 ./

240 j o.o 0.5 2. 9 1. 9 0.3 5.7 I 11.9 250 I 0.2 0.5 1. 7 1. 7 0.2 4.3 l 11. 6 ,*,*,,

o. 3 . I 260 I 0.2 0.2 1. 0 o.o 1. 7 I 10.9 I 270 I o.o 0.3 o.o 0.5 0.0 0.9 I 10.0 280 I 0.2 0.2 0. 9 0.5 o.o 1. 7 I 9.9 290 l u.o 0.2 2. 1 1.0 o. 0 3.3 I 11. 1 i l

300 l 0.3 LO 3. 1 0.3 o.o 4. 9 I 9.1 J 310 I o.o 1. 7 1.2 0.0 o.o 2.9 I 7.1 320 I 0.2 1."' 1o 9 0.5 OeO 3.8 I 8.3 330 I 0.3 0.2 1.9 o.o o.o 2.4 I 8.3 340 I o.o 0.2 2 .. 1 0.2 o.o 2. 4 I 10.6 350 I 0.5 0.7 10 7 O.J o.. 0 3. 3 j 8.0 360 I 0.3 0.7 o. 3 0.0 o.o 1. 4 I 5. 3 Variable I .2. J 0.2 o.o o.o o.o 2 .. 4 I 1. 5

                                                                                   --         . I Total     I    l l .. 1      20 .. 6    41. 2    20.6     1. 2     94.8     I   8.7              I Percent Calm:    5.2 100.0 Note:   Sensor height is 10 feet.             Tabulated values ace percent of 577 hours of data.

129 Table 6. 2B Palisades Network . (

\

Percentage Frequency of Wind Direction and Wind Speed at Station P07d for February 1977

\.
               'ilind      I                ~ind    Speed, miles per hour                    !Average Direction     l      1-3           4-7      8-12     13-18       19 +      Total l Speed

(* 010 I o.o 0.3 o. 9 o.o 0.0 1.2 J 8.7 020 l o.o 0.6 0.0 o.o o.o 0.6 I 5.4 030 I 0.2 0.2 o.o 0.0 0.0 0.3 I 2.9 r."" I

         ~

040 l 0.2 o.o o.o 0.0 0.0 0.2 I l. 0 0 50 I 0.8 0.2 0.0 o.o 0.0 0.9 I 2. 2 060 l o.o 0.0 0.0 0.0 0.0 o.o I o.o

....    -',    070         I     0.2           o.o        o. 0    o.o        0.0        o. 2 I   1. 6

'! 080 I 0.2 o.s 0.0 o.o 0.0 0.6 l 4.0 1**  ; 090 I 0.3 1. 1 o. 0 0.0 o.o 1. 4 I LJ.. 2 r* . 100 I O.J 0.5 o.o o.. 0 o.o 0.8 l 3.7 i 110 l 0.2 o. 0 0.0 0.0 o.o 0.2 I 1. J 120 l 0.2 0.2 0.3- 0.2 0.0 0.8 I 8. 6 130 I 0.8 0.5 0.0 0.2 o~o 1.4 I 4. 7 140 I 1

  • 14 0.5 0.9 0.3 o. 0 3. 1 l 6.4 150 I 0.5 1. 7 0.8 0.6 0.0 3.6 I 7.3 160 I 0.2 1. 1 o. 8 0.0 o.o 2.0 l 6.8 170 l O.o 0.9 1. 4 o.o 0.0 J.O I 6.7
  • (

180 190 200 210 220 230 240 l I I I I I I 0.5 0~5 0.6 0.0 1* 1 0.6 O.J L.2 3.0 0.5 1* 1 0.6

1. 1
1. 4
3. 3 .

2.2 2.0 0.6 0.6

o. 8
1. 6 0.0 0.0 0.2 0.3 0.2 0.0 0.2 0.0 o.o o.o o.o 0.0 o.o 0.0 5.9
5. 6 3.3 2.0 2.5 2.5 3.4 l

l l l I I I 7.9 6.6 7.7 8.0 5.9 6~ 1 7.8 250 I 0.3 2.0 3.3 0.2 0.0 5.7 l 8.0 260 I o.o 2.2 1. 9 1. 2 o.o 5. 3 I I 9. 1 27 0 l o.s 1. 4 L1 1. 2 0.0 4. 2 I 8.9 280 I 0.2 1. 7 2. 6 1. 1 o.o 5.6 l 9.5 290 I 0 .. 2 1. 4 1.6 0.2 0. 0 3.3 I 8.0 300 I 0.2 0.6 1.4 0.3 0.0 2.5 l 8.8 310 I 0.3 1.9 3.1 1. 1 o.o 6. 4 1 8.9 320 I o.s 1. 2 2.0 0.3 0.0 4.0 I 7.8 330 I 0.6 0.5 0.6 0.0 o.o 1. 7 I 6. 1 340 I 0.2 1. 1 1 1 D 0 .. 0 o.o 2.3 I 7.6 350 I O.J 0.3 0.0 o.o 0.0 0.6 J 3 .. 5

 !_            360        I      (). 6         O.J        0.8     0.0        0.0        1. 7 I   5.8 Variable!         0 .. 9        0.2        0.0     0. 0 . o.o        1. 1 I   1. 5 Tota.l     I     14.0          32. 6     3 5. 6    7.6        o.o       39.8  I   6.7 Pe..ccent Calm:    10.2 100.0
  • Note: Sensor height i.s 10 feet. Tabulated values are percent of 644 hours of data.

1-130 Fig. 6.lB \

           -WIND ROSE - FEBRUARY 1977                                 . I PALISADES NUCLEAR PLANT - STATION* P03A                          --,
                                                                         'J
                                                                         ')
                                        -~ N                       ~I
                                                                      .)      .

4~ l

                                                                 / -1
                                                                    **'\

i

                                                                       ..i

( I

                                                                     . I E .:

1*

                                                                          \
                                                                        )

i

                                                                          \

g .1-3 WIND SPEED IN MILES PER HOUR

           ,. . - - - - - - = =

CALM 4-7

                                           *s-12
                                             = = - - = =19+

13-18

                                                           =-

_J

Fig. 6.2B 131 WIND AOSE - FEBRUARY 1977

  • . PALISADES NUCLEAR PLANT - STATION P07A

,,I I N

   \ .
  • E WIND SPEED IN MILES PER HOUR
     *    (";"\ 1-3             s-12
          ~~---===4-=7=---==,=3-=18==---

19+

132

                                                                                                       .,,   I Table      E.1C       Palisades Network Percentage Frequency of Hind Directicn and Wind Speed at Station P03A fer               ~a:rch   1977 9f r

Wind l '11ind Speed, .mjle~ per hour I Avera:;e

                                                                                                     **-1 Direction      I       1-3         4-7      8-12         13-18     19+     Total I Speed            '.     ;
             +----                                     ----

010 I o.o 0. 1 0. 1 0.0 o.o 0.3 I 8.5 I 020 l 0.3 0. 1 o. 3 0.0 o. 0 o. 7 I 5. 1 ( 030 I 0.0 0. 3 0.3 0.3 o.o 0.8 040 I 9.8 I 0.3 0.3 ~ o. 7 0. 1 o.o 1 .. 3 7.8 050 o.o I 060 I I 0. 1 0.3 0.4 c.s 0.4 o.o o.o o.o o.o 0.8

0. 9 J

I 7.8 6.5

                                                                                                      ]

c 70 080 oso I I I 0.3 0.4 0.0

0. 4 .

0.4 o.s

0. 1
o. 3 0.9 o.o
o. 0 0.3 o.o
o. 0 o.o 0.8
1. .1
1. 8 I

I I 4.4 4.9 9~5 100 I 0. 5 1. 1 0.5 a.o o.o 2. 6 110 I 6.7 __ , 120 I 1. 1 2.7 3.4 0.4 o.o 7.6 l 7.3 I 0.4 2.3 2. 0 o. 8 o.o 5.5 I 8.2 130 I 0.5 1. 6 1.J 1.3 0.0 4.9 I 8.8 . \ 140 I c.. 8 o. 9 1. 6 o. 8 0.5 4. 7 I 10.0 150 I 0.4 1. 1 O.E 0.3 o.o 2. 6 . **1 I 7.7

                                                                                                 .i.

160 l 0.5 0. 1 0. 8 0.3 o.o 1. 8 l 8.0 170 l 0.7 0.7 a. 7 0. 1 0.0 2. 2 I 6.6 180 l 0. 1 2.6 2. E G. 8 0.4 6.7 l 9.6 190 l 0.3 O. E a.. 9 1. 2 o.o 3.2 l 9.7 200 l 0. 1 0.5 0.3 0.1 o. 5 1.6 I 12.5 210 I 0. , 1* 1 1. e ,*5 0.5 5.0 I 11. 5 220 I 0. 1 o. 9 1. 9 4.0 0.3 7.3 I 230 I 11. 8 I I 0. 1 1.: 2.J 2.6 o.o 6.5 I 10.5 ,) 240 I 0. 1 0. s 2.0 0. 3 o. 0 3. 4 I 8.7 250 I o.o 0.5 1. 2 o. 0 o.o 1. 8 I 8.4 260 II I 0.5 0.8 a. e o. 0 o.o 2.2 I 5. 9 270 280 J I C.4 0.3 0.5 0.3 0 ~ 0.8 0.0

a. o o.o o.o
1. 2 I =* 1
                                                                                                   '..)
1. 3 I 7.0 290 J o.o a.a 0.9 a.a o.o 0. 9 J 9.3 300 I o.o o. 5 o.e o.o o.o 1. 3 I 8.4 310 J 0. 1 0.5 c. 1 0. 1 0.0 0. 9 l 7.4 320 I o. 4 o. 4 o. 4 a.a o.o 2.0 J 9.2 330 I 0.4 0.3 o. 7 a. 4 o.o 1.8 J 8.7 .I 340 I 0.3 1. 1 1. 1 1. 2 o. 0 3. 6 9.8 350 I I 0. 1 0~3 0.4 C.5 o.o 1. 3 I 10. 7 360 I 0.4 0.3 o. 1 o. 1 o. 0 0. 9 I 5.5 Varia:CleJ 0.9 0. 1 o.o o.o o.o 1* 1 I 1. 8
  'Iotal
            +-

I 11

  • 3 27.4 3 5. 0
                                                  -     18.5      2.3     94.5     I      8.4            i Percent Calm:   5.5                           I
                                                                                                      .. /

100. 0 Note: Sensor height is 10 feEt. values are fercent of 741 Tat:ulatea hc~rs cf data.

133 Table E. 2C Ealisades Net*ork I / I I Percentage Frequency of 1il ind I at Station P07A fer

                                                    ~ind Directicn and Wind Speed
                                                                  ~arch Wind S~eed, mile~ per hour 1977 I Average Direction      I       1-3         4-7       8-12         l 3..:.1 e 19+     Total l Speed
            ------+-----

010 "v.j~ 0. 1 0.4 0. 1 0.0 0.9 8. 1 i I I I'

 !             020         I      0.0          o. 5        0. 1         0.3      0.0       0. 9   I     8.4 030         l     *O. 1         0. 8        0. 1         o.o      o.o       ,*1    I     5.4 040         I      0. 1         0.7         0. 1         o.o      0.0       0.9    I     5.6 050         J      0. ,         1. ,        o.o          0.0      0.0       1. 2   I     4.7
\.             06.0        l      0.0          0. ,        o.o          0.0      o.o       Q. 1   I     4. 1 070         I      0.7          IJ
  • 1 o. 0 o.o o.o 0.8 I 2.*J I

080 I 0.7 0.0 o. 0 o. 0 o.o 0.7 I , "3 ( 090 I C.5 0. 1 0.3 o.o o.o 0. 9 I L+. 1 100 l Oe7 o. 9 0.3 o.o o. 0 1. 9 I 5.2

  ~.           1 10        l      0.5          3.0         c.s          0. 1     0. 0. 4.6    I     5.9
   !            120        I       1. 2        3.5         2.3          0. 1     0.0       7. 1   I     6.4
 \ ..           130        I       1* 1        2.8         3.4          C.8      0. 1      8.2    I     8.0 140        I       1. 1        1. 9        1. 8         1. 1     0.0       5. 8   I     8.1 150        I       0.4          1. 1       0.9          0. 1     o.o       2 .. 6 I     7.0
 *l..          160         I       0. 4        0. 1        0.9          o. 5     o.o       2. 0   I     9. 1 170        l       0.4          1. 3       c.s          o.o      o.o       2.7    I     6.6
  '            180         I      0.5          2.4         1. 3         0.3      (). 0     4.6    I     7.5 190        I       1* 6         1. E       3.4          0.5      o.o       7. 1   I     7.4 200         I       0. 5        0.4         1. 5         o. 3     0.0       2a 7   I     8. 7 210         I      0.4          0.9         0.7          0.5      0.0       2. 6   I     8.6 220         I       0.3         0.8         1. 1         0. ,     o.o       2. 3   I     7. 9 230         I      0.3          0.4         1* 2         0.3      o.o       2.2    I     8.6 240         I       0.7         0. 5        2.3          o.o      0. Q,     *J. 5  I     7.6 250         I       G. 3        0.8         1. 2         o.o      o.o       2.3    I     7.5 260         I      o. 5          1. 8       1. 2         0. 3     o.o       3.8    I     7. 1 270         I       0.4          1. 3       1. 1         0. 1     o.o       3.0    I     6.8 280         I      0.8          0.8         o. 7         0. 1     0.0       2.4    I     602 290         I       0.7         0.4         1. 1         0.8      o.o       J.O    I     8.5 300         I      o. 3         0. 1        0.9          1. 6     0.0       3.0    I   11. 9 310         I      C.7          0.4         C.J          0.9      o.o       2.3    I     9. 3 320         I      0. LI        0.7         o. 8         o. 5     0.3       2.7    I   1 o. 0 330         I      0.3          0.7         0.5          0.3      o.o       1. 8   I     7~6 340         I      0.4          o.o         0.3          o. 4     o.o       1. 1   l     8.3 350         1      0.0          0. ,        c. 3         o.o      o.o       0.4    I     9.5 I         360         I      0. 1         0.3         0. 1         0.0      o.o       0.5    I     5o,.

I

   '*     . Variable I         0. 5         0. 1        c.c          o.o      0.0       0.7    I     1. 8
            -------+-------------------
               'Iotal      I    1 8. 1        33.0       3 2 .. :     10.4       0.4     9 4. 3   I     7. 0.

Percent Calm: 5.7

     *. /

100.0 Note: Sensor height is 10 fet.. Tal:ulated values are rercent of 742 hcurs cf data.

                                                       .I.

i 134 Fig. 6. lC WIND ROSE - MARCH 1977 PALISADES NUCLEAR PLANT - STATION P03A N

                                                       *1    I
                                                        .)
                                                        --~

I __ _y

                                                                )

I ___ ,.\

                                                                 \
                                                             ..  }

Y:rNO SPE2D I'N MILES PER HOUR 0\ 1~ 8~2

          ~-----===Vl==-----==,=3-=18==------

ts+

Fig. 6. 2C 135 WTND ROSE - MARCH 1977

  • PALISADES NUCLEAR PLANT - STAT ION. P07A I ,

\ I. N 1 {. __ ,; E i (  ;

i. .
                           ~1ND SPEED !N MILES P£R HOUR
                                         . 8~2

(';:"\ 1-3..

                  ~i-----===~=---==,3=~=8             =---
                                                        . 19+

136

                    'I able at Staticn 6.1D
                                    ~OJA PalisadeE Percentage Freguetcy of wind Cirecticn and Wind Speed fer
                                                          ~et*ock A t:ril   1977
                                                                                                     .l -1

_), I wind I Wind Sfeed, mile~ per hour JAverage Cirection I. 1-3 4-7 e-12

                                                                                                      -_j 1 J-18     19+     Total J Speed
------+-

0 10 I 0.1 0.7 o. 7 o.o o. 0 1. 5 7.2 020 030 J I c.o o.o 0.3 1.0

o. 0
o. 3 o.o
o. 0 o.o o.o 0.3
1. 3 I

I 5.2 -1 I 6.6 0 40 I a.a 1* 1 o. 6 o.o o.o 1. 7 I 7.5

                                                                                                        -1 050         I        0.3         0.8         1. 0          o. 0     o.o      2. 1  I     6.4           I 060          I        0. 1        o. 1        0.1           o.o      o.o      o. 4  I     5.4         .)

Ci 0 I 0.8 0.3 o. 0 o. 0 o.o 1. 1 I 3.0 080 I 0. 1 0.4 0.0 o.o o.o 0.6 l 4 *. 9 --1 090 I C.3 0.6 1. 4 o. 0 0.0 2. 2 j 6. 9 ii 100 I 0.3 0. 4 1.3 a.a o.o 1. 9 I 7. 6 . --1 1 1a I 0. 1 a.7 a.6 a.a o~o 1. 4 I 6. 3 12a I c.o 1. 4 1. 4 c. 1 0.0 2.9 I 7.9 130 I o.e 0.8 a.3 o. 7 o.o 2.6 j 6.8 140 l 0.8 1. 4 o. 4 0.4 o.o 3. 1 I 6.2 150 I C.7 1*4 1. 1 0.0 o.o 3. 2 j 6.0 160 I C.3 2.5 1. a 0.0 o.o 3.8 I 6.4 l 170 .. 1 I 0.1 0.8 1. 1 0.0 o.o 2. 1 I 7. 1 180 j 0.3 1. s 1.* 1 a. 1 0.0 3.5 I 6.9 190 I a.6 0.6 1. 0 o. 0 a.o 2. 1 I 6.6 200 I o.o 0.4 1. 7 1.5 0.1 3.8 I 1 2. 1 2 10 I a.a o.a 1. 8 3. 6 a. 3 5.7 I 13. 6 220 I 0.0 a. Lj" 1. a 1. 7 0.3 J.3 I 12.6 230 j a.a 0.6 1. 1 1. a a. 1 2. 8 J 1 a. 9 240 I 0.3 1. 1 1.4 a.7 o.o 3.5 l 8.6 2.: a } 0.1 1.0 a.6 o. 6 o. 0 2. 2 I 8.7 i., 20 j 0. 1 1. 1 o.c 0.3 0.0 1. 5 I 6.8 27a ) a.a . a. 1 0. 1 o.o o.a 0.3 l ' 9. 3 --*\ 280 I. 0. 1 0. 1 0. 1 0. 1 0. 1 0.7 I I 10.6 2Sa 1 0. 1 0.3 o. 1 1. 4 o. 0 1* 9 l 12.7 300 l a. 1 1. 0 0.6 0.6 0.0 2.2 J 9.2 __ Jr

    .; 1 a     I          0.7         1. 4        1. 8          0.6      o.o      4. 4 I      8. 3
   ~20         J          0. 1        1. 3        2.2           0.6      a.a      4.2  I     8.6
   .3 3 0      I          0.6         1* 0        1. 1          o. 7     0.0      3. 3 I     8.3      _j i

340 I 0.7 0.6 1. 8 C.8 o.o 3. 9 I 8.9 350 l a.a 0.7 o. 6 0. 1 o .. 0 1. 4 j 7.6 JEO I 0.3 0.4 c. 1 0~ 1 *a. o 1. 0 I 5.9 Varia.l:le) 1. 7 0.4 0.4 o.o o.o 2. 5 I 3.8

               +-
   'Io tal     I         10.8      29.0          29. 7        15.7       1. 0    86.3  I     7. 2         1' Percent Calm:   13.8                      I
                                                                                                         .i 100.0 Note:      Sensor heigct is 10 feet. 'Ial:ulated
           ~alues are fEicent of i2G bcurs cf data.

137

                       'Iable     6.2D      falisade~    Net~ork

~. Percentage Frequency of iind Cirecticn and Wind Speed at Staticn P07A fer A.p:il 1977

       \.I ind       I                Wind Sfeed, mile~ per hour                          !Average Direction         I      1-3          4-7     8-12        13-18     19+     Total l Speed C10
                   +---------
o. 1 0.6 o. 0 0.0 o. 0 0.7 4.8 l I 020 I c.o o.e 0. 4 o.o o.o L3 I 6.2 030 I C.4 1.9 0. c 0.0 0.0 2. 4 I 5.3 040 I 0.3 L5 c. 1 o.o o.o L9 I 5.0 050 I c.. 3 0.8 o. 1 o. 0 o.o 1. 3 j 5.0 060 I 0.6 0. 6 0.0 0.0 o.o 1* 1 I 3.6 C70 I G.3 0.3 0. 0 o. 0 o.o 0.6 l 2.2
\      CEO           I      c. 3         G.7      0.0         a. o     0.0       1. 0     I    3.6 I

i . cso I 0.6 0. 1 o. 0 o. 0 O.J . o. 7 I 2. 8 100 l 0.7 0. E 0. 1 o.o o.o 1. 7 J 4.3 1 10 I 0.7 1* 9 o. 6 o. 0 o. 0 3e 2 l 5.5 I I (.. 1~0 I 1* c 1* c O. E 0.0 o.o 2.5 I 5.0 130 I 1. 7 2.2 0.8 o. 0 o. 0 4.7 l 4.7 140 I c. 6 1. 8 0.3 0. c o.o 2.6 I 5. 2 150 I 0.4 2.4 LO 0.3 o.o 4.0 I 7.0 160 I c. 1 2.: 1. 3 c. 1 0.0 4.0 I 6.7 170 j 0.4 1. 1 1. c o. 0 0.0 2.5 l 6. 1

c. 1 o.o 180 *J ~ 1* s 1. c o. o 3.2 I 6 *.3 190 I 1. 4 2. 5 1;. c o. 0 o.o 4 .. 9 l 5. 1 200 l 0.4 *1. E c. 4 0.0 o.o 2.6 I 5.2 210 I 0.4 0.7 o. 8 0.3 0. 0 2.2 I 7.2 220 l 0.3 1. :: 1. 1 c. 1 o.o 2.8 I 7.3 230 I o. 4 0.7 o.. 6 o.o o.o 1. 7 I 6.2 240 i a. 1 O.E C.7 o.o o~o 1. tj. l 7.3 2:0 I o. 0 0.6 1. 1 0.0 o. 0 1. 7 I 8. 2 260 J C.3 0.6 1.7 0. 0 o.o 2. 5 I 8. 1 270  ! 0.1 o. 7 1. 0 o.o o.o 1. 8 l ' 6. 9 280 j c.o O.E C.E 008 OoO 2.2 I 10.2 290 I 1. 1 1.3 o.. 1 1. 7 o. 0 4. 2 J 8. 7 300 I 0.3 1. : 1.3 1. 0 o.o 4.0 I 9.0 3 10 I 1.0 1. 3 1. : Q.,, 8 o.o 4. 6 I 8. 1 320 I 1.0 1. 1 C.E C.6 o.o 3.2 J 7.0
      .3 :: 0 340 I

I 0 1

0. 1 0.4
0. 3 0.4 C.3 o.

a.a 1 o.o 0 .. 0

1. 3 0.7 t

I

6. 9 5.7 350 I o.3 0.7 o. 3 o. 0 0.0 l.,, 3 I 6.0 3t0 j C.4 0.8 0.3 o.c 0.0 1. 5 I 5.4 Variat:lel 1.8 0.4 0.0 0.0 o.o 2. 2 l 1. 4
   --------+
      'Iotal               1E.3        41.0      20.8         5.8      o.o     86.0
                                                                                          +----
  • 4 J I Percent Calm: 14.0 100.0 Note: Sensor heigrt is 10 feet. Tal:ulated values are FEicent cf 120 bcrrs cf data.

13~J Fig. 6.lD *1 .

                                                               \

WIND ROSE - APRIL 1977 I PALISADES NUCLEAR PLANT - STATION P03A *'

                                                         -1 N                    J
                                                         ]

J E* ]

                                                        *. -.J

_J

                                                         -~/

( _J

                     \JINO SPEED IN MILES PER HOUR f'7:\~1-_s-=======--s_-_12-=======---1s_+_
           ~                 4-7            13-18

Fig. 6.2D 139

                     *WIND ROSE - APRIL 1977 r.

PALISADES NUCLEAR PLANT - STATION P07R I I

\

N I I

  \ ....
  • E
                           \JIND SPEED IN MILES PER HOUR *

(!)__1-_3-=====--s-_12--======---1~__

                    ~             4-7             13-18
     ,   r
                                                                                                                ' I 140                                                                                                      '!

Table 6. 1E Palisades Network Percentage Frequency of ~ind Direction and ~ind Speed at Station POJA for May 1977 **-\ I\ It ind l Wind Speed, miles per hour JAverage -1 Direction I 1-J 4-7 8-12 13-18 19+ Total I Speed .\


+

010 I. 0. 1 O.J 0.4 o.o o.o J.8 I 7.2 --( 020 I 0.6 0.4 0. 1 o.o o.o 1. 1 I 4.5 ( 1

    ) 30 I       0.4            (). 6      o. u     0. !)    o.o           1. J     I   3. 5 040          I       0.6            0.8        o.o      o. 0     o.o           1. 4     I   4.2
) 5:) I 0.3 0.6 J.J O.J  :)
  • J 0.8 I 4.6 **-(

060 I 0.6 1. 0 o. 1 o.o o.o 1. 7 I 4.6 .J 070 I 0.4 1* 1 o.o o.o 0.-J 1. 5 I 5. 1 080 I 0.8 1.~ o. 0 o.o o.o 2.2 I 3.8 -, () 90 I 0.6 1 * 'J 0.7 o.o 0. *J 2. 2 I 5.3 j 1 00 I o. 3 1. 2 1. 5 0.1 o.o 3.2 I 7.6 110 I 0. 1 1. : ;J. 8 o.o 0. *J 2.5 .I 6.7 _,l 120 I 0.3 1.8 0.3 o.o o.o 2.4 I 5. 6 130 l 0. 1 1. J 0.3 o.o O.J 1. 4 I 6. 1 - ) j 40 I 0.0 0.7 0.7 o. 1 o.o 1. 5 I 8.0 150 l 1. 0 1. J 0. 1 0.1 O.J 2.2 I 4.6 160 17:) J I 0.4 0.7 0.7

1. 0 0.3 0.3 0.1
0. 1 0.0
                                                                    *). :)
1. 5
2. 1 I

I 5.7 5.4 J

                                                                                                      *J 180         I       1.2             0.8        0. 1     o.o      o.o           2. 2    I    4. 1 190         I       0.4             0.8        0. 1     o.o      0.0           1. 4    I    4.5 2 00        I       a. 3            0.4        0.6      o. 1     o.o           1. 4    l    7.0 210         I       0.4             0. 3       1. 4     1* 1     o.o           3.2     I    9.7 220         I       0.3             1. 5       1. 8     0.7      o.o           4. 3    I    8.5 230         I       o.. 1       0.8        1.9      0. 1     o.o           3. 1    I    8.3 2 40        I       0. 1            2. 1       2. 1     o.o      O.J           4. 3   .f    7.4 2 50         I       o.o             2. 1       2.8      o.o      o.o           4. 9    I    7.8 260         I       0. 3            2. 6       L4       o.o      o.o           4.3     I    6.7        *1 270         I       0 .. 1          1* 1       O.J      o.o      o.o           1. 5    I    6.1 I

280 I 0*1 1. 1 0. 1 o.o o.o 1. 4 I 5.8 2 90 I 0.6 1* 1 o.o o.o o.o 1. 7 I' 4.4

  *300         J       0. 1            0.6        0.1      0. 1     J.O           1 * :)  I    6.4 J~ 0        I       0 3             0. 1       0.3      0.1      o.o         . 0. 8
                                                                                                        ..J J!l I    6.8 320          I       0.3             0.7        0.6      0. 1     o.o           1. 7    l    7.7
   ~30         I       0.1             ,_ 0       0.7      0.3      o.o           2. 1    I    8.3         I 34,;        l       0. 1            006        1.8      0.7      o.o           3.2     I    9.8     _J 3 50        I       0.4             0.6        o. 4     0.3      o.o           1.7     I    8.1 360         I       o.o.,           0.4        1.1      o.o      o.o           1. 5    I    8 *. 7 Varial:lej          -..

_, 1. 2 0.1 o. 0 o.o 4.7 I 2.6

             -+

Total l 16. 0 35.9 23.4 4.4 o.o 79.8 I 5. 2 Percent Calm: 2.j. 2 t

                                                                                                         .J 100.0 I

_J Note: Sensoc heigh~ is 10 fee~. Tabulated values are percent of 721 hours of data.

141 ,. T.:ible 6.2E at Station f?07!\ for Palis ad.es tie t war k Percentage Frequency of Wind Direction and iind Speed day 1977 Wind I Wind Speedr miles per hour !Average Direction l 1-3 4-7 8-12 13-18 19+ Total I Speed

  -----+-
       '.) 10       l        !J
  • 2 0.7 0.3 0.2 o.o 1. 3 I 7. 8
       '; 21J       I        C.7             0. 7        0. iJ         0. :)     'J. 0       1. 3     I  3.3
       " 3 :')      l        0.5              1. !)      0.0           J.O       !)
  • 0 1. 5 I 4.2 040 I 0.8 0.7 C.J o.o ;J. J 1. 5 I 3.5
        !) 5 0      l         1* 0            1. 5.      o. 0          0.0       (). 0       2. 5    I   3. (~
) F 0 I 1. R 1. 7 o.o o.o  :)
  • 0 3. 5 I 2 .. 7
       ")70         I         1. 7           0. 3        o. 0          o.o        0. ')      2. 0   I  2.9
        ) 8.:1      I        0.8             1.0         J. 0          0. *)     0.0         1. 8  l   3.3
       '.) 9'.)     I         1. 0           ,J. 5       0.j           1). ')    o.o         1. 5   I  3. 1 10 0        I        !)
  • 5 0. 3 C.0 a. :J o.o 0.8 I 3.0 11 0 I 0.5 0.2 o.o 0.0 o.o 0.7 I 2.5 120 I o. 8 1. 0 o. 0 o. 0 iJ. 0 1* 8 l 3.6 13 <1 I 1
  • c:; 1. 0 o.o o. 1) o.o 2. 5 I 2.4 140 I 2. 3 1. 5 0. (J  :'). 0 o.o ).8 I 3.5 150 I 2.3 1. 5 0.7 0.) o.o 4. 5 I 3.8 1 6 I) I 1. 3 1. 2 0.2 0. )  :)
  • i) 2. 7 I 3.6 170 180 I 1. 0

(). 7 3 * ;)

1. 5 1 ')

o.

                                                               . 2
                                                                  ~    0.0
o. 2
                                                                                 *J. *)

i). () 5.2 2.5 I I 5.4 5.4 I 1 g *') I o. 2 0.7 o. 0 o. 2 (,) e *) 1. 0 I 6.0 2 ') f) I 0. 3 1. 2 Vo 2 0. ,J IJ. 0 1. 7 l 5. 2 21 <) I ('

  • 5  !) I 5 0.J J.2 0. () 1. 5 I 6.6 220 I. 1. 2  !)
  • 5 (). (j 0 * .) i). J 1* 7 I 2.9 230 I O.J 0. 2 0. t) *'). 0 J.J 0. 5 I 2.9 240 l I). 5 o.. 2 o.o o.o ') m 0 0.7 l 3.2 2 50 I 0. 3 1. Q o.s o.o o.o 1. 8 l 5.7 2 6:j I I)
  • 3 1. 7 o. J o.o o.o 2. 3 I 5.4 270 280 I 0. 3 G. 3 1* 3
2. 5
                                                         *=.1,). 77    1). I) o.o
                                                                                 *J. :'.)

o.o 2 .. 3

3. 5 I 6. 1 5.9 I I 2 g \) I 0.7 1.'5 1. 0  !)
  • 0 O.J 3. 2 I 6.2 JOO I Cl. 2 o.s o. 8 0. 2 o.o 1. 7 I 7.8 310 I 0.2 1* 5 1. 2 o. 3 o.o 3. 2 j 7. 9 3 2 () I C.2 i). 5 o. 7 (). 7 o.o 2.0 I 9.7 3 3 !) 1 0. 3 *J. 3 0.3 ,J. a o.o 1. 0 I 5. 3 34') I c.2 0. 5 (). 0 0.3 o.o 1
  • I) I 7. 1 3 50 I G.2 0. 3 l). c 0. !) '). J 0. 5 I 3.8 360 I 0.2 0.5 0
  • v,, 0.2 o.o 0.8 l 6.8 Variable! 2.8 0.7 o.o o.o o.o 3. 5 l 2.2
  ------+-                                                                                          -+

Total I 28.8 3 5. 3 9. 2 2. 3 o. 0 75. 6 I 3. 6 Percent Calm! 24. 4

                                                                                          -10').0 Sensor heigh~ is 10 feet.                     Ta:rnlated
  ~lo':e:

values are percent of 598 hou=s of data

  • 142 Fig. 6.lE WIND ROSE - MRI i977 PALISADES NUCLEAR PLANT - STATION P03R N

l (;:"\ 1-3

                   ~IND SPEED IN MILES PER HOUR s-12
          ~~--====4-=7==---=13-=18=---*
                                                . 19+
  • I I

I 143 Fig. 6.2E WIND ROSE ~ MAY 1977

  • PALISADES NUCLEAR PLANT'- STATION P07A l

N I

 \.

l

    • E
                       \JIND SPEED IN MILES PER HOUR
  *            ~--1-_3--=====--e_-1_2-====----1~__
               \.5)            4-7            13-18
                                                                                                -~  ..

144 i I

                                                                                                      \

I Table 6.1F ~alisades Network

                                                                                                *-~\

Percentage Frequency of Wind Direction and Wind Speed at Station P03A for June 1977

                                                                                                 -1
   ~1 ind
  • I Hind Speed, miles per nour !Average Direction l 1-3 4-7 8-12 13-18 19+ Total I Speed -*1
               +

010 I 0.6 ~

                                    ~-
                                         ~
o. 4 0.2 o.o 3.6 I 6.3
                                                                                                -i
                                         ..J J20          I      0.2           0.2          0. j      o.o      0,J      J.4    I   3.2 030         I      o.o           0.2          o.. 0      o.o      o.o      o.. 2  I   3.7         I
   *J 4')      I      0.4           0. 6         0.2        o.o      o.o      1. 2   I   4.0 050         I      0.6           o.. 6        o.o        o.o      o.o      1. 2   I   3.5       *1 J 6*'.)     I      0.6           0.2          O.J        O.J      0.0      0.8    I   2.9         .\

070 I I 0.4 0.2 o.o 0. '.) o.o 0.6 I 2.7 080 I 1. 0 0.4 o.. 0 o.o o.o 1. 3 I 3.0 0 9J I c. 2 0.2 o.o o.o 0.0 0.4 I 2.2 _] 100 l 0.6 0.2 o. 0 o.o o.o 0.8 I 2.2 110 I o.. 2 0.2 O.J o.o o.o 0.4 I 4. 1 120 I 1.0 o.. 2 o. 0 o.o o.o 1. 2 l 3.3 -1 130 I 0.2 0.8 o.o /). 0 o.o 1. 0 I '4. 8 140 l 0.2 o.. 8 0.2 o.o o.o i. 2 I 5.8 1 Si) I 0.2 0.6 0. i) 0.2 o.o 1. 0 I 6.9

   ~ 60        I      0.6           0.6          o. 4       o.o      o.o      1. 5   I   4.9   -.-i 170         I      0.2           0.8          0.4        0.2      0. :J    1. 5   I   7.3 180         l      0.4           o.. 4        o.o        o.o      o.o      0.8    I   4.9 190        I      1. 0          1 .. ']      0.4        0. *J    o.o      2. 3   I   4.7 2 00         I      0.8           o. 4         0.6        o.o      o.o      1.7    I   5. 1 2 1 'J       I     0.6           0.8          1.0        Q. *)    o.o      2.3    I   6.2 220          I      0.6           1.2          a.a        0.2      o.. 0    2. 7   I   7.2     . '

230 I 0. 4 1. 3 1 0 I 0.4 o.o 3. 1 I 7. 1 i 240 I 0.6 1 .. 5 1 .. 9 0.2 o.o 4. 2 . 7.6 .l 250 I 0.6 2 9* I 2.3 0. :) o.o 5.8 7.0 260 I 0.4 1. 3 3.3 a.a o.o 5. 0 8.2 270 I 1 . !'I

                          -.)       0. 4         0.6        o.o      O.J      1. 9       5.0    __ )

I 280 290 I I 0.4 o.o 0.8 0.6 0 )

                                                 \). 4 o.o o.o o.o J.O
1. 3 1.J 5.6 6.9 3 00 I o.o 0.2 0.6 o.o o.o 0.8 8.6 310 I o.o 0.8 1. 0 o.o 0.) . 1. 7 7.3 320 I a. o 0.8 1.5 o.o o. 0 2.3 8.3 330 l o.o 1. 2 1.7 o.o o.o 2.9 8.0 f 340 l 0.4 1.5 3. 1 0.2 o.o 5.2 8.1 **'

I 350 I o.a 2.9 4.4 0.4 o.o 8.4 8. 1 3 60 I 0.6 2. 1 2. 3 0.2 0.2 5. 4 7.9 Varial:le I 2.3 0.8 o*.) o.o o.o 3. 1 2. 4 i

               +                                                                               *-I Tctal        I     17. 5         31. 7       2 8.4        2. 1     0.2     79.8    I   5. 2 Percent Calm:  20.2 100.0 Note:       Senso~  height is 10 feet.              Tabulated values are fe~cent of 521 hour!::i of data.

145 Table 6. 2F Palisades Network

  • Percentage Freguency of Wind Directicn and Wind Speed at Station P07A fer Jur:e 1977 Wind l Wina S~eed, miles per hour !Average

(  : Direction I 1-3 4-7 8-12 13-18 19+ Total *I Speed

       --------+--

010 I c. 1 0. 1 0. 1 o.o o.o 0.4 I 5.3 020 I 0.4 o. 3 o. 0 o.o o.o 0.7 I 3. 1 030 I 0.9 0.6 o.o a.o o.o 1. 5 I 3. 1 040 I O.J 0. 1 o.o 0.0 o.o 0.4 I 2.a 050 I 1. 2. a. 1 o. 0 a.a o.a 1. 3 I 2.3 060 I 0.9 a. 0 a. 0 a.a a.a 0. 9 I 1. 4 C70 I 1. 0 o.c a.a 0.0 a.a 1* 0 I 1. 7 aso I 0.6 o. 0 o. 0 a. 0 o.o 0.6 I 1. 7 I .\ . osa I 0. 1 o.o o.o a.o a.o 0. 1 I 1. 7 10 a I 0.4 o.a o. 0 a. a o~o 0.4 I 1. 1 110 I 1. 0 0.4 o. a a.o a.o 1* 5 l 206 I 120 I 1. 0 0.3 a. 0 o. 0 o.o 1. 3 I 2. 1

' -       130       I     0.3           a.7         0. 1       a.a     a.a       1. 2  J    4.7 140       J     0. 9          a .. 7      o. 0       a. o    o.o       1. 6  I    3.4 150       I     1. 2          0.7         0.4        o.o     o.a       2. 4  I    4.5 160       I     1. 2           1. 3       0. 1       0. 1    a.o       2. 8  I    4.3 170       I     0. 6          0.7         a.4        o.o     a.o       1. 8  I    5. 5 180      .I     0. 1           1. 2       o.c        o.a     a.o       1. 3  I    4.7 19a       I     Oc7            1. 0       o*. 1      a.o     a.o       1. 9  I    4.5 200       l     0.4
  • 1. 0 o. 1 o.o 0.0 1. 6 I 4.5 210 I 0.4 0.6 0. 1 o.o o.o 1. 2 I 4.7 220 I o. 1 0.4 0. 1 a. o o.a 0. 7 I 6.0 230 I 0.6 0. 4 a.c o.o o.o 1. 0 I 2. 5 240 I 1. 2 1* 3 0.4 a.b o.o 2.9 I 4. 1) 25 0 I 0.6 0.7 O.J a.o 0.0 1. 6 I s.o 260 l G.7 1. 0 0. c 0.0 o.a 1. 8 I 4. 1
 "*.      270       I     0.3           2. 1        0.6        o. a    a.o       2.9   I    s. 8 280       I     0.7           2. 1        C.7        0. 1    o.o       J.7   I    5.8 290       I     a.4            1. 6       1. :       o. a    o.o       3. 5  J    7.0 30a       I     0.4            1* 3       2.4        0. 1    o.o       4.3    I   7.8 3 10      I     1. 2          2.9         1. g       0. 1    o.o       6.2   I    6.5 320       I     0.7           3. 1        2.5        O.J     0.0       6. 6  I    7. 1 330       I     0. 9           1. a       o. 4       o. 0    o.o       2.4   I    5.0 34a       I     1.a            1. 0       a. 1       a.o     o.a       2.2    I   3.8 350       I     1. 2          o. 7        o. 3       a. o    o.o       2.2   I    Jo 9 360       I     0.6           0. 1        C.3        0.0     o.a       1. 0   I   4.7 Variable!       1. 0          O.J         o. c       a. a    o.o       1. 3  l    2.4
                    +                                                  0.0 Total     I    25.8         30.5         13.4        0.9              70.6   l    3.5 Percent Calm:   29.4 100.0
  • Note: Sensoc height is 10 feet. Tatulated values ace FErcent of E78 hours of data.

146 Fig. 6.lF WIND ROSE - JUNE 1977 PALISADES NUCLEAR PLANT - STATION P03R

  • l N
                                                          \

_I _) I I i

                                                      . .J UINO SPEED IN MILES PER HOUR
          ~     1-3             a-12 .
          \51~--===4-=7=---==13=-1=a         ==---

19+

Fig. 6.2F 147

                  - WIND ROSE - JUNE 1977
  • PALISADES NUCLEAR PLANT - STATION P07R r' -.

I ( N r . I

 . *~.. '

I

   \ .
  • E I '
                         . UIND SPEED IN MILES PER HOUR

(';:'\ 1-3 a-12

                 ~---===:::=4-=7==---==13=-1=8        ==---

1S+

148 l I Table 6. 1G Palisades Network Percentaqe Frequency of Wind Direction and Wind Speed July 1977 e1....._ at s~ation P03A for I

                                                                                                                       )

Wind Direction I I 1-3

                                       ~ind 4-7 S~eeJ, 8-12 miles per
                                                                  '1 J-18 hou~

19 + (Average

                                                                                             *Total I Speed
                                                                                                                 'l _I
------+-                                                                                              +-

J 1 (\ I <}. 1 '.). 7 *J. 1 .'). ')  ;)

  • J 1. 0 I 4.5 -1 020 I 0. 3 0.6 0. 1 o.o* o.o 1. 0 I 4.9 ,

(

)30 l 0. 3 Q* 1 (.). J a. *J O.J 0.4 I 3. 2 040 o. 3 0.6 o. 1 o.o o.o 1.0 050 I

I 0.3 J. 4 J.J 0.:.) -) . ') ij. 7 l I 5.2 3.9

                                                                                                                   '\

060 I 0.7 0. 1 o. 0 o.o o.o o. 9 I 1.8

    )70          I        0.4             Q. )         O.J           o.o           O.J         0.4    I   1.6 080           I        0.3             0.4          o.o           o. 0          o.o         o. 7   I   3. 4    --,I
1) 90 1 00 I

I

0. 1
0. 3 i). 7 0.6 0.J 0.3 O.J
o. 0
                                                                                   ') .. 0 o.o
0. 9 1.2 I

I 4.0 s.. 2 ..\ 1 1:J l 0. 1 0.7 0. 1 0.0 l). J LJ I s. 0 120 I 0.3 1. 2 o. 4 o. 0 o.o 1. 9 I 5. 7 1 JQ I 1J. 6 0. 6 0. 1 0. ') J.O 1. 3 I J.8 1 40 I 0.4 0. 3 o. 0 0.0 o.o o. 7 I 3.4 1 50 I iJ. 1 Q. 3 0. i.) 0. *J O.J 0.4 I 2. 6 1 60 I 1. 2 0.7 o. 0 o. 0 0.0 1. 9 I 2.3 _\

                                                                                                                *i 1 7 .')      I        0.4              1. 0        0~1           0,J           J.J         1. 6   I   4.9 1 80         I        1. 3             1* 9        'j a 4         o. 0          o.o        4. 6   I   5. 7 190          I      . '}. 3            1. 4        :J.3          o.o           0.0         2.J    I   5.6 200 I        0.4             1* 4         1. 4          o.o            o.o        3.3    l   6.7     ,,/

210 :J

  • 6 0. 9 2.j 1*0 *J. *J 4.5 I 8.8 220 I 0. 1 2.7 4,, 0 1.3 o.o 8.2 I 9.2 i 23') I *J. 4 1 *7 5.8 1.6  :). 0 9.5 I 9.7 _l 240 I 0.3 J. 3 1. 1+ a. 1 o.o 5.2 I 7.3 25J 2 60 I

I 0 1 0.4

                               .-          1. 9 2.2
1. 2 0.6
0. 1 o.o J.O o.o 3.5
3. 2 I

I 6.9

5. 9 I

270 l 0.4 L4 o. 1 o.o ).0 2.0 I 5. 1 J 280 I 0.4 0.9 o. 1 o.o o.o 1. 4 l 4.7

29) I  ::;
  • 4 0. 7 c.o o.o o.o 1. 2 I 4.2 o.o o.o o.o 0.6 4.0 3 00 31)

I I

0. 1
                          ')
  • 1
0. !+

1* J

1. 3 u.

0.6 1 ~) o.o

                                                                         . *)       J.)

o.o

1. 6 2.2 I

I 5. 8 6.2 320 I 0.3 I 330 I 0.3 1. 2 1. 0 O.J o.o 2.4 I 6.6 l 340 I 0.0 0.7 0.6 o.o o.o 1.3 I 6.8 _) 3 50 I 0.3 I)

  • 3 1. 9 C.9 0. 1 3.5 I 10.2 360 I 0.3 0.6 1. 3 0.9 o.o .3. 0 I 9. 8 Variable] 1.9 0.4 J.O 0. 1) J.J 2.3 I 2. 1
                 +-    1.~.              35.7         25.5            5.9           0. 1      82.4        5.6 Total         I               1                                                                    I Percent Calm:        17.6
                                                                                            .100.0 Note:      Sensor height is 10 fE::E:t.

values are FErcent of 69~ hours of data. Tabulated

149 Table 6. 2G Falisades Net~ork r ~ Percen~age FreguEncy of Wind Direction and Wind Speed at Station P07A for July 1977 Wind I Wind Speed, miles per hour I Average Direction I 1-] 4-7 8-12 13-18 19+ Tota*l I Speed

                       +

' . 010 I 1.2 0. 4 o. 0 o.o 0.0 1.6 I 1. 9 0 2') I 0.6 0.6 0 * .J 0 *.) o.o 1. 2 I 3.9 030 I 1. 0 o.o o. 2. o. 0 o.o 1. 2 I 2.1 0 40 I 0.6 0.2  :}

  • J 0 * .) o.o 0.8 I 2 .. 6
0. '.]

0 050 J 1 * .) *.L 4 Cl. ) ). 0 1. 4 I 2.0 060

  • 1* 0.4 0.4 o.o o.o o.o 0.8 I 3. 0
           'J70         I       v. 2             !J
  • 6 0. J  :'). J :J * .j 0.8 I 3.2 080 I 0.2 0.6 o. 0 o.o o.o 0.8 I 4.2 0 90 l 0.6 O.J O.J o.o 0. <) 0.6 I 0.7
\

100 o. 0 d.O o.o 110 I I

1. 4 1* )

0.0 J. 2 O.J ;J * ;) o.o

                                                                                  ') *)

o.o 1

  • LJ
1. 2 I

I 1.5

1. 9 120 I 1. 2 0.4 o. 0 1. 6 I 2 .. 1 1 JO I c.s 0. 2 0.0 o.o ).0 1 * *') I 2.9 140 I 1* 0 0.2 0.0 o. 0 o.o 1* 2 I 2.5 1 5;) I 3*1 1. 2 0. ;j 0
  • i) J.0 4. 3 I 3.0 160 I 1.0 2.7 0.2 o. 0 o.o 3. 9 I 5. 2 170 I 1. 4 2.9 0.2 o.o *). 0 4.5 I 3.8 180 I 2*. 7 .2.7 o. 4 o.o o.o 5. 8 I 4.2 19'J I 1.2 3. 1 1. 2 o.o 0. ') 5,6 I 5.5 2 00 I o.~ 1. 4 o. 0 o. 0 o.o 1. 9 I 4.5 210 I 0.6 1. 4 C.0 o.o J. ') 2. 1 I 4.2 220 I 0.6 1.0 o. 0 o.o o.o 1. 6 I 3.8 2 30 I 0. 4 1. 0 C.2 '). 0 '). J 1. 6 I 5.2 2 !.10 I o.. 8 3. 3 o. ~ o.o o.o 4.5 I 5. ~

25J l 0.8 1. 6 0.4 0. i) J.O 2.9 I 5.0 2 60 I 0.4 1. 4 o* .:t o.o o.o 2.3 l 5.5 I

 '*.       27)          l      .J. 4              2. 1       0,4        c. :)     O.J        2.9     I    4.9 2 80         I      0.6               2. 1        0.2        o.o       OoO        2. 9    I    5.2 290          J      0. 2               1.2        I). 8      0 * :J    *). 0      2.3     I    6.4 3 00         I      0.4               2.5         o. 0        o. 0     o.o        2.9     I    5.2 31J          I      *'v.   ~

I!. 1. 2 0.8 0,8 J.J 3. 1 I 8.6 3'2 0 l 0.4 o.. 0 o. 2 0.4 o.o 1. 0 I 8. 7 330 I 0.6 1. 2 1. 2 o.o J.O 3. 1 I 6.0 340 I 0.6 0. 4 0.8 o. 2 o.o 2.1 I 7.3 350 I 0.6 o.o 0.2 0. *J 0.0 0.8 I 4. 2 r . 360 I 0.4 o.. 2 o. 2 o.o o.o 0.8 I 4.5 Varia1lel 4.9 0.8 O.J o.o u.O 5.8 I 2. 3 I-Total I 3 4. 6 39.9 8.6 1. 4 o.o 84.6 I 3.7 Percent Calm: 15. 4

                                                                                          -100.0 Note:     Sensor heiqht is 1<) fE:e~.                   Tdbulated values are fercent cf 486 hours of data.

150 Fig. 6.lG WIND* ROSE - JULY 1977 PALISADES NUCLEAR PLANT - STATION P03A

                                                       *  -(
                                                         *1 N                   -1
                                                        -1
                                                          .-1 J

l

                                                          *i

__j I J J

                        ~IND SPEED IN MILES PER HOUR
                  . ~1-_s-======--a-_12--======--1s_+_

f;:'\CALMi

          ~
          .                    4-7            13-18
"iq. 6.2G 151 WINO ROSE - JULY 1977
  • PALISADES NUCLEAR PLANT - STATION P07R

\ N I

\
  • E

{ . I

                      \JIND SPEED IN MILES PER HOUR
             @.      3 l- .. . . 4=7    .

8 12

                                        ""'. 13-18

152 *-, i

                                                                                                           .l*1 I

Table 6. 1H Palisades Network

                                                                                                              **~

Percentage Frequency of Wind Direction and Wi.nd Speed at Station P03A for August 1977 iind Direction 1-3 Wind Speed, miles per hour 4-7 8-12 13-18 19+ I Average Total I Speed ] I - - - - - - - - - - - - - -- ---------------------~ 01 o I a.a 0.4 o.o o.o o. a o. 4 1 5. a -1 O 20 I 0.4 0.4 o.o o.o o.o o.a 1 3. 4 . ) 030 I I a.s 0. 4 o. a a.o . o. 0 o. 9 I 3.0 040 I 0.3 0.7 o.o o.o o.o 0.9 I 4. 6

o. a .o.o o.o 050
   *J 60 070 I

I I 0.8 0.5 0.3 0.4 0.4 0.3 o.a

a. 0 o.o o.o o.o o.o
1. 2 0.9
o. 5 I

I I 2.9

3. ,

3.0 J 080 I 0.4 0.3 o. a o.o o.o 0.7 I 3. 4 "") 090 I 0.3 o.o o. 0 o.o o.o o. 3 I 1.3 __ \I 100 I 0.3 0.3 o. 0 o.o o.o o.s I 3 .. 2 110 I 0.4 0.1 o. 0 o.o o.o o.s I 1. 9 o.o o.o o.o 120 130 140 J I I 0.7 0.4 0.7 0.4 0.1 0.9

a. 0 o.o
o. 0 o.o o.o o.o
1. 1 .
o. 5
1. 6 J

I I 3.2 2.7 3 .. 9 l 150 I 1.1 1.3 o. 1 o. 0 o.a 2. 6 I 4. 1 160 I o.s 1. 6 o. 0 o.o a.a 2.2 I 4.3 'J o.o a. 7 o.o a.o 170 I 1. 1 1.7 I 7. 0 180 I 1. 3 1.5 0.9 o.a o.o 3.8 I 4 .. 8 1 90 l , *6 1.2 3. 0 a.3 o. 0 6.0 I 6.7

   *200         I        0.9                  2.0         2.0        0.3       o.o     5. 2   I     7.5 210         I        a.a                   2.0         1. 6       o.s       a.a     s. o   I     7.5 220         I        0 .1                 1. 6        3.1        a. 3      o.o     5.1    I     8.1 230          I       0.3                  1. 2        2.8        0.3       o.a     4. 6   I     8.9       _J 240         I         o.o                  2.3         1.6        o.o       a.a     3.9    I     7.3 250         I        0 *. ,               0.9         1 .. 1     o. 1      o.o     2.3    I     7.7            I 26a         I         0.4                  1.5         0.8        a.o       o.o     2. 7   t     5.8

_j i 270 I o.4 1* 3 a.4 o.o o.o 2. 2 I 5.6 280 I o.s 1.2 a.3 a.a o.o 2. o I

  • s. 0 29a I 0.4 0.3 o. 1 o.o o.o a.a 1 3. 8 3 oo I 0.4 o. 8 o. 1 o.o o.o 1. 3 I 4.9 (

310 I 0.4 1. 6 0.4 o.o o.o 2. 4 I 5.5 32a I 0.3 0.9 0.7 o. 0 o.o 1. 9 I s. a 330 J o.o 0.9 1. 1 o.o o.o 2 .. o I 8.0 340 I 0.3 0.8 o. 9 o. 0 o.o 2.0 I 6.4 350 I 0.4 1.3 o. 9 o.o o.o 2. 7 I 6.4 3 6a I 0.5 0.8 1. 3 o. 0 o.o 2.7 I 6.6 Varial::le I 1.5 0.0 o.o o.o o.o 2.3 I . 2 .. 8 Total 18.3 34.3 24.1 1.7 o.a 78.4 . 4. 7 ) I Percent Calm: 21. 6 I __ _) 100.0 Note: Sensor height is 10 feet. values are percent of 744 hours of data. Tabulated

153 Table 6. 2H Palisades Network L .. Percentage Frequency of Wind Direction and Wind Speed at Station P07A for August 1977 \. Ii ind Wind Speed, miles per hour I Average I l ' Direction I 1-3 4-7 8-12 13-18 19+ Total I Speed a.a +-- 0 11) t 0.1 0.7 o.o o.o o.a I 4.7 I 020 I o. 9 0.4 o. 0 o. 0 o.o 1. 3 I 2.9 0 30 I o.s o.o o.o o.o o.o 0.5 I 1 .. 7 040 l 0 .. 3 0.4 o. 0 o.o o.o 0.7 I 3. 1 0 50 J o.s o.o o.o o.o o.o 0.5 I 1. , 060 I 0.3 o*. 3 o. 0 o.* 0 o. 0 o.s I 2.5 070 I 0.5 0. 1 o.o o. o o.o 0.7 I 2. 2

'!        080        I      0.3           o.o         o. 0     o. 0     o.o       0.3    I    1.6

( . 0 90 I 0.7 o.o o.o o.o o.o 0.7 I 2. 4 100 I o. 8 o.o o. 0 a. o o.o 0.8 I 1. 4 1 10 I 1

                             '. c:
                                 ~        0.3         o.o      o.o      o.o       1. 7   I    1. 9 i         120        I      2.0           0.8       . o. 0     o.o      o.o       2. a   I    2.8
\.

1 30 I 1.5 1. 2 o.o o.o o.o 2.7 I 3.6

          , £t 0     I      0.7           2.7         o. 1     o. 0     o.o       3.5    l    4. 6 r         150        I      1.9           2.3         0.3      a.a      o.o       4. 4        4. ,

1 60 l o.. 8 2.4 0.9 o. 0 o.o 4. 2 5 .. 8 170 I o.s 2.6 1. 5 o.o o. 0 4.6 6. 4

  • 1 80
        . 190 2 00 210 220 230 2 40 I

I I I I I l 0.7

1. 3 0.7 o.. 3 0.7 0.3 0.3 1 .. 3 2.0 2.0 0.8
1. 1 1.9 1.6
                                                    . 2. 3 1.3
1. 7 0.3
o. 1 0.1 0.1
a. 3 o.o o.o o.o o.o o.o o.o
o. 0 o.o o.. 0 o.o o.o o.o o.o
                                                                              . 4.6 4.7 lJ. lJ
1. 3
                                                                                  ,*9 2.8 2.0 7.5
s. 3 6.2 fl. 9 4 .. 6 5.4 5 .. 3 250 I 0.9 0.8 0.1 o.o o.o 1. 9 3.9 260 I 0.4 , *6 0.7 o.o o. 0 2.7 s. 9 270 I o.s 0.9 0.7 o.o o.o 2. 2 6.2 280 I 0.0 1. 3 0.3 o.o o.o 2. 4 I 4.7 290 I o.s 1. 1 1.s o.o o.o 3. 1 I 6.8
 \  . 3 00        I      0.4           o. 9        o. 7     0.3      o.o       2.3    I    6.9 310         I     0.3           1.5         0.7      o.o      o.o       2. LJ  I    5.7 320        I      0.5           1. 2        0.3      o.o      o.o       2. 0   I    4.9 330        I      0.7           0.4         o.o      o.o      o.o       1. 1   I    3.3 340         I      a.a           0.1.        o. 0     o. 0     o.o       0.9    I    2.5 350        l      0.4           0.4         o.o      o.o      o.o       o.s    I    3.7 3 60        I      0.9           0.3         o. 0     o.o      o.o       1. 2   I    2.0 Variable I        4.7           0.5         o.o      o.o      o.o       5.2    I    1. 9 Total      I     30.0          36.0       14.2       o.s      o.o      80.8    I    3.8 Percent Calm:   19. 2 100.0
  • Note: Sensor height i~ 10 feet. Tabulated values are fercent cf 7£tij hours of data.

154 Fig. 6.lH 1 l' WIND ROSE - AUGUST 1977 I PALISADES NUCLEAR PLANT - STATION P03A N l

                                                           ]

l I _J

                                                          *1 E _; ,

__l

                                                              \    '
                       \JINO SPEED IN MILES PER HOUR 0\         1-3               a-12
         ~,....._-llllic:::::=4-=7==-----==1s=-1=a =---

19+

Fig. 6.2H 155 w*IND ROSE - AUGUST 1977

  • I PALISADES NUCLEAR PLANT - STATION P07R

[ ( N

 \

I, I

   \

(  : (

  • E
      \
                                \JIND SPEED IN MILES PER HOUR
                      @      l-a. . . 4-7   .. a-12
                                                       ..
  • 1a-1a 1S+

156

     ~ercentage Table         6. n      Palisades Network Frequency of Wind Direction and Wind Speed at Station POJA for                SE:p t.      1977 l

Wind I Wind Speed, miles per hour !Average ') Direction I 1- 3 4-7

                +

8-12 13-18 19+ Total I Speed ,/ 010 I 0.3 1* 7 o.o o. 0 o.o 1. 9 I 4.8 020 I (J. 6 0.8 J.J '.). 0 o.o 1. 4 I 3.8 -1 03 0 I 0.6 0. 4 u. 1 c.o o.o 1* 1 I 3.3 ) 040 I 0.6 0. 1 o. 0 o. 0 o.o 0.7 2.0 0 5) I j iJ

  • 4 0.3 0.:) 0.,)  :) * :J 0.7 3.2 I l 060 I 0.8 0.8 o.o o.o o.o 1. 7 I 3. 5 )

J 7J I c. 1 0.6 O.J 0. :J o.o  :)

  • 7 I 3.8 080 I o. 3 0.7 0. 1 o. 0 o.o 1* 1 I 5.4
    *J 90         I        0*1           0*1       0.3           *J. 0      0 * :)    :J. 6        6. 1 I

1 00 I 0.7 1. 1 o. 8 o. 0 . o.o 2.6 I s. 5 110 I G.8 1. 7 0.8 O.J *). 0 3.3 J 5.2 120 j 0.4 1* 1 0.3 o.o o.o s. 2 1 ]l)

   -140          I I         1. 1 0.6 J.6 0.8 0.4
o. 3 0.:)
o. 0 O.J o.o 1.8 2 .. 1
1. 7 I

I I 4.0 5.1

                                                                                                           'l
15) I 0.4 1. 0 0.4 0. ') o.o 1. 8 I s. 4
    '160         I        0.8            i.7       o. 1          o. 0       o.o       2. 6    I    4.2 170          I        1* 3           1. 8      o. 3          o. 0      J .. O     3.3     I    4.3      -:
so o.o o.o I 0.6 1* 4 0.6 2.5 5.1 19'.J I I 1. 1 2. 4 C.8 0.) J.O 4. 3 I 5. 1 200 I 0.7 1. 4 o. J 0.1 o.o 2. 5 l 5.6 2.1 o* 0. 1 o.o ... J I

o.o 1* 0 0.7 0.3 2. 1 I s.o 220 23) l 0.8 1. 4 0.3 o.o 2.5 I 9.0 I 0.4 1*3 1. 1 0.3 0.:) 3 .. 1 7.0 I 240 I o.o 1. 5 1. 0 o. 0 o.o 2. 5 I 7.5 ..) 2 50 I 0. 1 0. 8 G.8 0. ,J 0. i) 1. 8 7. 3 I 260 I 0.3 0.4 1. 0 a.a o.o 1. 7 7. 9

                                                                           ') .()

I I 270 I ,..., v.

                               *"I J        0.6       0.3          o.o                   0.8    I     7.4 I

_ __) 2 80 I o.. 1 0.8 o. 1 o. 1 o.o 1. 3 I 6.6

29) I f)
  • 0 1. 1 0.6 0.4 o.o 2. 1 8. 2 I

300 I 0.1 0.6 1. 4 0.3 o.o 2. 4 I 8.8 i 310 j 0. 1 0. 6 2.4 c. 1 O.J 3.2 I 8.4 J 320 I c . :) 1. 1 J.J 0. 1 o.o 4.6 I 8.4 330 I 0.3 1* 7 2.4 c.o a.o 4.J I 7.8 340 I 0. 4* 1. 3 o. 8 o.o o.o 2. 5 I 6.7 35') I 0.3 o.e 1*3  :)

  • 1 o.o 2.5 I 7.7 3 60 I o.o 0.6 0.7 o.o 0.0 1. 3 I 7.8 Va:ciatlel 1* 1 0. 4 0.J o.o 0.:,) 1. 5 I 3.J
            ---+                                                                             +----

Total I 15. 7 35.7 24.9 2.2 O.Q 78.5 4.9 I Percent Calm: 21. 5 100.0 Note: Sensor height is 10 feet. Tabulated values are fercent cf 720 hours of data.

157 Ta~le 6 .. 2I Falisades Network

  • Percentage Frequency of Wind Direction and Wind Speed at Station P07A for S:pt. 1977 i Wind I Wind Speed, miles per hour I Average Direction J 1-3 4-7 8-12 13-18 19+ Total I Speed
            -------+                                                                                      +----

r- -~ 010 I 1.0  ;)

  • 4 0. i,) o.o o.o L q. I 2.2 020 I 0.7 0. 1 o. 0 o.o o.o o.. 8 l 1.8 030 I 0.8 0. 1 c.o o.o  :)
  • 0 1. 0 I 1. 8 040 I o.. 8 0. 4 o. 0 o.o o.o 1.3 I 3.2 0 5) I 1*0 0.6 0. iJ 0. *) iJ. 0 1. 5 I 2. 4
'.             060        I      0.4               0.3        o. 0            o.o      o. o*      o. 7    I    2.5 J 71)      J      1. 5             0.6         O.J             o.o      ).J        2. 1    I    2.4 I

080 I 1. 7 0. 3 o. 0 o.o o.o 1. 9 I 2 .. 1

               !) 9D      I      2. 1              J. 8       J.O             0 ...)   o.o        2. 9    I    2.6 1 00       I      0.7               1* 5       o.o             o.o      o.o        2.2     I    4. 1 11 a       I      1.3              L5         0. i)           Q. *J    ') .')     2.8     I    3.8 120        I      1 .. 1            0.8        o. .J           o.o      o.o        2. 2    I    3.8 1 30        I      1. 9             1. e       o. 4            G.0      o.o        4.2     I    4. 1 140        I      1. 0              1* 1       o. 0            o. 0     o.o         2 .. 1 I    4.2 1 S*J      J     0.7               2. 1       u. 1            o.o      O.J        2.9     I    4.9 160        I      1* 1             3.8         o. 6            o.o      o.o        5. 4    J    5 .. 0 170       l      :')
  • 7 3. 2 C.6 o.o* o.o 4.5 I 5.2 1 80 I 0.4 1* 3 o. 6 0.0 o.. 0 2. 2. I 5.8
19) I ). 4 1* 5 c.3 0. -J .J .. J 2. 2 I 5. 3 200 J 0.4 1. 1 o.o o.. 0 o.o 1. 5 I 4.3 21 '.) I C.7 O.J C.6 0.1 o.o 1., 3 I 4.9 i~

i 220 I 0.3 0.8 0.6 o.o o.o 1.. 7 I 6.3 I 2 30 J 0. 3 J.4 0. 1 ']. :) J.O *')

  • 8 l 4.4 240 I o.. 3 0. 4 o. 0 o.. 0 o.o 0.7 I 4.9 2 St) I .J. 1 1. 1 . 0. 4 o.o o.o 1. 7 . I 6.2 260 I 0.6 1* 1 o. 7 o.. 0 o.o 2 .. 4 I s.s 27') I 0.6 0.6 0. 1 0. ') '.). ) 1. 3 I 4.5 2 80 I 0.3 2.6 o.. :.+ o. 0 o.o 3. 3 I s .. 8 290 I 0* 1 1. e 1. 5 'J. J O.J 3.5 I 7.2 300 J o. 4 1. 9 ~
                                                                    ~
                                                                   .J         0 i
                                                                                &      o.o         5. 8   I    7.7 310        I      0.8               1* 7       1. 0            0.3       o.o       3.8     J    6.8 320        l      0.6               1. 1       u. 1            o.o      t) * ')     1.8    I    4. 1 330        l      1. 0              1. 1       o. \)           o. 0      o.o        2. !    I   3.7 3 40       !      0.8               0. 1       0 .'j           0 . ')   o.o         1e 0   I    2.2 350        I      1
  • 1 1o 0 o.o o.o o.o 2. 1 I 3.0 360 I 1. 3 0. 1 0.0 o.o  :'.). 0 1. 4 I 2.5 Variable] 2.6 o. 7 0.0 o.. 0 o.o 3 .. 3 I 2.2
                         -+

Total I 31.6 4 0. 1 11. 7 o. 4 o.. 0 83.7 I 3.8 Percent Calm: 16. 3 10'J.:)

  • Note: SEnsor height is 10 feet. Tabulated values are fErcent of 719 hoars Of data,

158 Fig~ 6.lI l WIND ROSE ~ SEPTEMBER 1977 PALISADES NUCLEAR PLANT - STATION P03A N i I ,

                                                           *1 i

_J l J I

                                                        '     'i
                                                            .J
          ~

UIND SPEED IN MILES PER HOUR 1-3 a-12

          ~------===4=-7===---==,a=-1=e       =---

1S+

Fig. 6.2I 159 WIND ROSE ~ SEPTEMBER 1977 .

  • PAL I SADES NUCLEAR PLANT _:. STAT I ON P07A N

j (

  • E
  *          @ ,.     \JIND SPEED IN MILES PER HOUR J-3        4-7.,  s- 12 .. . 1s-1a . l9i: .

160 - -1 Table 6. 1J Palisades Netvork e: Percentage Frequency of Wind Direction and Wind Speed at Station P03A for October 1977 II ind l iind Speed, ~iles per hour I Average Direction I 1-3 4-7 8-12 13-18 19+ Total I Speed *1 ~~~~*--t----~---~~~------------------~~~-----------1" j 010 I c.u

                       - -         1.5     0.9        0.1      o.o     2. 6   I    7.9 020         I      0.1        1.9      1. 1       o. 0     o.o                         .....,
3. 1 I 6.5 I 030 I 0.4 1. 5 0.7 o.o o.. 0 2. 6 .I 6. 1 040 I 0.9 0.4 0.8 o.o o.o 2.2 I 5.1 050 I 0.3 o.o o.s o.o o.o o. 8 I 6.4 I o.o o.8 o.o o.o 060 070 1 o.s 0.3 0.4 o. 1 o.o o.o
1. 1
1. 1 1 I a.. o
4. 2
                                                                                             ]

080 I 0.1 0.9 o.s o. 0 o.o 1. 6 ' 6.3 090 I 0.4 o.s 2.0 o.o o.o 3.2 I 7.7 1 oo I o. 0 1.2 1. 5 o. 0 o~o 2.7 I 7.5 l 11 o I o.o 0.9 0.4 o.o 0.0 1. 3 I 6. 3

                                                                                           .J 120          I      0.3        0.8      o. 5       o.o      o.o     1.6   I     6. 3 1 30         I      0.3        0.7 a.a 0.3
o. 4 o.. o o.o 1. 2 I 5.4 -i-140 J 0.4 0.3 o.o 1. 9 I 6.3 1 so I 0.4 0.4 1. 3 o.o o.o 2.2 I 7.8 160 I o. 7 1. 1 1. 3 o.o o.o 3.1 I 6.5 170 I 0.9 1. 1 1. 5 o.s o.o 4. O I 7.3 J 1 80 I o. 8 2.0 1.1 0.1 o.o 4. O I 6.3 190 2 oo 210 22 o 230 I

I I I I o.s

o. s 0.1 o.o 0.3 1.3 0.8
0. 1 0.5 0.7
1. 3 o~

0.7 s

o. 9 1.7 o.o o.o o.o 0.3 0.3 o.o o.o o.o
o. 0 o.s 3.2
1. 9 0.9
1. 7 3.5 I

I I I I 6.6 6.1

8. 1
9. 7 10.2
                                                                                         *1*  _)

2 40 I 0.1 o.s 1. 6 o.*9 o. 5 3. 8 I 11.7 j 2 50 I 0. 1 0.8 2.0 1. 2 o. 1 4.3 I 11. 0 260 I o.o 0.5 1.1 o. 4 o.o 2.0 I 9.6 270 I 0. 1 o.s 0.4 0.1 o.o 1. 2 I 7.8 i 280 I o. 1 0.1 0.4 o. 1 o.o 0.8 I 8.3 J 290 J 0. 1 0.1 0.1 0.5 o.o o* 9 I 10. 2 3 00 J o.o o.o 0.7 o. 5 o.o 1. 2 I 11.6 310 I o.o 0.3 1. 2 o.o O.J 1. 5 I 9.4 3 2.0. I 0.1 0.9 1. 1 o. 1 o.o 2. 3 I 8.2 330 l o. 1 0.8 1.5 o.s o.o 3.0 I 8.4 340 l 0.4 o.a 1. 9 o. 8 o.o 3. 9 I 9.4 .. J l 350 I 0.4 0. 1 2.3 1. 1 o.o 3. 9 I 10.6 3 60 . I 0.4 1. 1 0.7 o. 4 o.o 2.6 I 7.5 Varial:le I 0. 1 0.3 o.o o.o o.o 0. 4 l 3.5 Total 10.3 27.2 36.0 8.5 1.2 83.2 6.7 Percent Calm: 16. 8 100.0 Note: Sensor height is 10 feet. Tabulated values are percent -0f 744 hours of data.

161 Table 6. 2J Palisades Network

  • Percentage Frequency of Hind Direction and Wind Speed Wind at Station P07A foe October 1977 Wind Speed, miles per hour !Average I

Direction I 1-3 4-7 8-12 13-18 19+ Total I Speed o.o +- 0 10 I 0.7 0.7 o.. 8 o.o 2.2 I 5.5 020 J o.s o.. 9 . o. 1 o.o o.o 1. 6 I 4. 6 0 30 l 0.4 0.9 0.3 o.. o J.O 1. 6 I 4.8 040 I 0.3 0.8 o. 5 o. 0 o.o 1 .. 6 I s. 6 050 I 0.4 o.s o.o o.o o.o 0.9 I 3.7 060 I o. 9 o.o o. 0 o.o o.o o. 9 I 1.9 0 7i) I 0.8 0.4 o.o o.o o.o 1. 2 I 2.8 080 I 0.5 0.8 o.o o. 0 o.o 1.3 I 3.9 0 90 I o.s 1. 3 o.o o.o J.O 1. 9 I 3.- 6 1 00 I o.. 5 2 .. 2 o. 0 o.o o. 0 2.7 I 4.6 110 I 0*1 2.4 0.4 o.o o.o 3.0 I 6.2 I 120 I 1. 1 0.9 o.. 3 o. 1 o.o 2.4 I 4.7 130 J 1.2 0. 1 0.9 0. 1 o.o 2.4 I 5.9 140 I 0.9 1.2 1.1 o.o o.o 3.2 I 5.8 150 I 0.8 1. 5 o.. 9 o.o o.o 3. 2 I 5.6 160 I o.8 3. 1 1. 5 o. 0 o.o 5. 1+ I 5.9 170 I 1.. 1 1*6 0.8 0.3 o.o 3.8 I 6. 1

o. 0 180 I 0 .. 1+ 1. 3 1 .. 9 0.0 3.6 I 7~5 190 I 0.5 0.7 0.7 o). 1 o.o 2.0 I 5. 8 200 l 0.7 0.7 o. 1 OG 0 a.. o 1. 5 I 1+. 5 210 l 0.1 0.5 0.4 . 0.3 o.o 1.3 I 8.0 220 I o. 4 0.7 o. 1 0.3 o.o 1. 5 I 6 .. 8 230 I 0. 1 0.9 1. 2 a.o o.o 2.3 I 7.0 240 I 0.4 1* 1 o. 7 o.o o.o 2.2 I 6.4 2 50 I 0. 1 1. 1 0.3 o.o o.o 1. 5 I 5. 9 2 60 I 0.4 1.3 o.s o.o o.o 2.3 I 6. 1 270 l 0. 1 0.8 o.. s o.o o.o 1.5 I 6.2 280 290 3 00 310 320 J

I I l

o. 1
0. 1 o.. 1
0. 1
o. 1 0.3 0.9 0.5 0.4 1.5
1. 1 1.J 1.6 1.3 0.9 0.1 0.3 o.o 1.2 0.4 o.o o.o o.o o.o
o. 0
1. 6
2. 7
3. 1 3.0 l

I I I 8.2 8.9 8.2

11. 2 7.6 I I 330 J 1. 1 1. 2 0.9 0.1 o.o 3.4 I s. 8 340 I 1.2 0.9 o. 7 0.1 o. 0 3.0 I 5.3 350 I 0.4 1. 2 o.s o.o o.a 2.2 I 5.9 360 I 0.4 0.8 0.1 o.o o.o 1. 3 I s. 1 Va:tia.ble] 0.8 0.5 o.o o.o o.o 1. 3 l 2.9 Total I 19 .. 6 37.G 22.7 3.5 o.o 82.8 I 5.0 Percent Calm: 17.2 100.0 Note: Sensor height is 10 feet. Tabu.lated values are Fercent of 744 hours of data.

162 Fig. 6.lJ WINO ROSE - OCTOBER 1977 PALISADES NUCLEAR PLANT - STATION P03R N E*.l

                                                       ..I i
                   ~IND SPEED IN MILES PER HOUR          J (x\   1-3              a-12           19+
          ~----~4=-7=-----==1=3-=18=----

Fig. 6.2J 163 WIND ROSE - OCTOBER 1977

  • PALISADES NUCLEAR PLANT - STATION P07R I

I . 1-* I ~ I N

 \    .

I I i-

  • E
    *            . Q,.

CALM 1-3

                             ~IND SPEED IN MILES PER HOUR a-12 *
                        ~-- = = = = - - = = = = - -

4-7 13-18 19+

164 -1 Table 6. 1K Palisades Network Percentage Frequency of Hind Direction and Wind Speed at Station P03A for November 1977

                                                                                           -]

ilind I Wind Speed, miles per hour !Average Direction I 1-3

  • 4-7 8-12 13-18 19+ Total I Speed
             +--------------------------------------~------~+-~---

010 l 0.2 0.2 0.2 0.2 o.o 0.6 I 7.7 -1 020 J o.o 0.3 0.5 o.o o.o 0.8 I 7.2 ) 030 I o.o 0.2 1.~ o.o 0.0 1.6 I a.a 040 *I 0.3 0.8 0.6 a.a o.o 1.7 I . 6. 3 oso I o.s 1.7 0.3 o.o a.a 2.5 I 5.3 060 I 0.2 1.7 0.5 0.0 O.O 2.4 I 6.5 I I 070 I o.s 3.9 0.8 o.o o.o 5.2 I 6.0 080 I a.6 2.1 1.1 o.o o.o 3.8 I 5.9 .\ 090 l 0.2 1.6 1.1 o.o

  • o.o 2 .. 8 I 6.7 J

iOO I 0.8 0.6 0.2 O.O O.O 1.6 I 4. 5 110 I 0.6 1.1 0.2 a.o o.o 1.~ I 4. 9 . 120 I 0 *. 8 1.4 0.8 a.2 0.0 3.2 I 6.1 130 1 o.3 2.4 o. 8 o.s o.a 3.9 1 6.7

                                                                                           -J 140        1     a.2           2.0     a.3      a.a     o.o      3.3     1     5.6 150        I     c.s           2.1     1.9      0.2     o.o      4.9     I     7. 1 160        I     0.6           2.2     2.7      a.2     O.O      5.7     I     7. 6 170 180 190 200 210 220 I

I I 1 I 1 0.0 o.o o.o 0.2 0.2 a.a 1.6 0.9 0.2 o.J o.o a.J 1.7 1.4 0.9 0.2 0.3 o.6 0.2 0.9 0.5 0.2 0.6 1.1 O.O o.o o.o o.o o.o o.o , 3.5 3.3 1.6 a.a 1.1 2.1

                                                                           *I 1

J I I 1 7.4 9.5

11. 4 7.5
12. 1
                                                                               ., 3.1
                                                                                         .: ... 1 230        I     0.2           Q.S     0.2      0.6     0.0      1.4      I    9.5 24a        I     0.2           0.3     0.2      0.9     0.0      1.6     I  1*0. 8 2so        1     a.a           0~3     1.9      o.9     0.2      3.3     1  11.7 260        I     0.2.          0.3     1.6    . 1.3     0.3      3.6     I  12. 0              i 270        J     o.o           0.2     2.8      2.4     o.o      5.4. I     12.0         - _I 280        I     o.o           0.2     0.9      1.4     o.o      2.5      I 12.8 290        I     o.o           0.5     0.8      0.9     o.o      2.2      I 11. 7              I 300        I     o.o           0.3     1.1      0.3     o.a      2.5      I 13. 4              I 310        l     o.o           0.6     0.9      0.9     0.2      2.7      I 12. 6 320        I     0.3           0.3     0.5      0.9     o.o      2.1      I 11. 0 330        t     o.o           o.o     o.3      a.a     o.o      1. 1     1 13.4 340        I     0.3           0.3     0.5      0.9     o.o      2.1     I     9.7       .-1 350        J     o.o           0.6     0.5      o.o     o.o      1.1      I    8.4 360        I     o.o           0~5     o.o      0.2     o.o      0.6      I    8.3 I

Varial::leJ 0.6 0.5 0.0 0.0 O.O 1.1 I 2. 6 -- ,I

             +-----~--~--~---~~----~~--~---~--~-------1 c:;.

Total 8

                      *-         33.8    30.6     17.S     l.4 Percent Calm:
92. 1
7. 9 8.0 100. 0 Note: Sensor height is 10 feet. Tabulated values are fercent cf 634 hours of data.

165 Table 6.2K Ealisades Network r-Percentage Frequency of Rind Direction and Wind Speed at Station P07A for November 1977 Ii ind I . Wind Speed, miles per hour !Average Direction I 1-3 4-7 8-12 13-18 19+ Total I Speed t r**- 0 1;J J C.6 0. , 0.3 o.o o.o 1. 0 I q_3 020 I 0. 1 0.4 0.1 o. 0 o.o 0.7 I 5.6 OJ:) I 1. 1 0.3 0.3 o.o o.o 1. 7 I 3. 6 040 I 0.8 0.6 0.1 o.o o.o 1.5 I 3.7 r) 50 I 0.8 2.2 o.o o.o o.o 3. 1 I 3.9 060 I 1. 4 2.6 o.o o. 0 o.o 4.0 I 3 .. 9 070 J 1. 0 1.5 o.o o,.o o.o 2.5 I 3.7 r- 080 I 1. 0 0.4 o.o o. 0 o.o 1. 4 I 2.8 iI I) 90 l 2. 1 o.c o.o o.o o.o 2.-1 I 1. 8

'*                100        I     1.3        0.3       0.1      o.o     o.o       1. 7   I    3.2 11 o*      I     1.0        1. 5      0.4      o.o     o.o       2.9    I    4.9 120        I     1. 7       2.1       o.. 7    o. 0    o.o       4.5    I    4.6 130        I     0.8        2.6       1. 1     O.J     o.o       4.6    I    s. 3 1 40       I     1. 7       2.1       2. 1     0.3     o.o       6. 1   I    6.6 I

I .

       -           150       I     0. 1       2.8       2.2      0.3     o.* 0     5. 11  I    7.5
  \          r 160        I     1.0        1.4       0.7      0.1     o. 0      3. 2   I    5. 8 l    _,

170 I 0.6 0.4 0.7 0.1 o.o 1. 8 I 7. 1 o.o 1 80 I o. 7 0.6 0.6 1.0 2. 8 I 8.3 190 I 0.3 0.7 o.a 1. 0 o.o 2.8 I 9. 1 2 00 I 0.3 0.3 0.7 o.o o. 0 1.3 I 6., 9 210 I o.o o.. 4 0.3 0.1 o.o 0.0 I a. *1 220 I 0.3 0.3 0.1 o. 0 o.o 0.7 I s. 2 230 I o.o 0.1 0. 1 o.o o.o 0.3 J 8.7 24a I a.a 0.7 0.3 o. 0 o.o 1. 0. I 6.8 250 r 0.4 1. 9 1. 1 o.o o.o 3.5 I 6.5 I 26a I o.o 1.3 1. 5 0.1 o.o 2.9 I 8. 1 270 I 0.6 1. 4 4.0 0.3 o.o 6.3 I *8. 4 2 aa I 0.3 1.3 2.2 1.4 0.0 5.2 I 9.7 290 I o.o 0.1 0.3 1.3 0.1 1.8 I 14.7 3 00 I o. 0 0.1 o. 1 0.8 o.o 1.1 I 13. 4 310 I 0. 1 o.o 0.4 . 0. 3 o.o a.a I 10. 3 32a I 0.3 o. 4 o. 7 o.o o.o 1. 4 I 7.0 330 j 0.4 0.3 o.o o.o o.o 0.7 I 3. 8 340 I 0.4 o.o 0.6 o. a o.o 1.0 I 6.6 350 I 0.4 1. 0 0.1 o.o o.o 1. 5 I 4. 6 3 60 I o. 0 0.6 a.1 o.a o. 0 1.3 I 7.5 Varial:le1 o. 1 o.o o.o 0. ') o.a 0. 1 I 1. 5 f, Total I 21.6 32.9 23.7 7. 1 0.1 85.4 I s. s { j Percent Calm: 14. 6 100.0

**             Note:     Sensor height is 10 fee~.       Tabulated values are percent cf 718 hours of data.

166 Fig. 6.lK --,_ 1, WIND ROSE - NOVEMBER 1977* PALISADES NUCLEAR PLANT - STATION P03A *

                                                       ,\_
                                                      *..    {

N

                                                        ~-  ~.

i

\ i:

(  !

                                                          - _j
                                                                \
                                                             .I
                                                           ; I*

I (;:"'\

                   ~IND 1-3 SPEED IN MILES PER HOUR 9-12
          ~---===4-=7=---==1=3-=18==---

19+

Fig. 6.2K 167 WINO ROSE - NOVEMBER 1977

  • PALISADES NUCLEAR PLANT - STATION P07A i.\ .

N I ' I . I

  • E i .
       **            (';\
                              ~IND 1-3 SPEED IN MILES PER HOUR s-12 .
                     ~,....._--===4-=7==---=,=3-=18==---
                                                           ' 19+

168 Table 6.11 Palisades Network

  • Percentage Frequency of Wind Direction and Wind Speed at Station P03A for December 1977
                                                                                           .I,
                                                                                                    \\

Hind I Wind Speed, miles per hour I Average Direction I 1- 3 4-7 8-12 13-18 19+ Total I Speed

                                                                              +-

010 I 0.2 0.4 0.6 o.o o.o 1. 2 I 6. 6 J 20 I 0.2 1. 8 0.8 o.o o.o 2. 8 I 5. 6 r' ..\ 030 I o.. 6 1. 0 o. 4 o.o o.o 2.0 I s. l.J I

                                                                                                     )
   ') 40     I      0.4         1.0       0.4       o.o     o.o        1. 8   I     5.7 050       I      0.2         o.o       o. 4      o.o     o.o        o. 6   I     8. 1 J 6,)     I      0.4         0.4        1. u     o.o     0 .1.)     1.8    I     7.3 01a       I      o. 6        1. 4      1. 6      a.a     o.o        3.6    J     6. 3 080       I      1. 2        0.8        1. 2     o.o     o.o        3.2    I     5.6 090       L      0.6         0.4       o. 4      o.o     o.o        J.4    I     4. 9       \
                                                                                                  'I
                                                                                                   \I 100      I      0.8         1.0       O.J       0.2     J.O        2 .. 0 I     s.o 110       I      0.2         1.4       1. 8      o.o     o. 0       3.4    I     7.4 120      I      0.4         0.8       4.2       o.o     o.o        5.4    I     8. 1        -   ")

130 I 0.4 0.2 1. 4 o.o o.o 2.0 I 7.9 I 1 40 I 0.8 o.s 0.2 o.o o.o 1. 8 I 3.8 I 1 50 J o.o 1.6 1.8 a.2 o.o 3.6 I 8.2 160 I o.o 1.0 0.8 o.o o.o 1.8 I 6.7

o. 8 o.o 170 I 0.2 1.0 0.6 2. 6 l 8. 0 180 I 1.0 1. 8 1.6 0.2 o.o -4.6 I 6.7 1 90 I 0.2 1. 6 4. 0 a.a o.o . 5. 8 I 8.1 200 I o.o 0. 6 3.2 0.6 o.o 4.4 I 10. 3 21a I 0.2 1. 4 1. 6 1. 4 o. 0 4.6 I 10.-0 220 I o.o 1. 2 0.6 0.4 o.o 2.2 I 8.7 23 0 I o.o 0.6 1. 0 1. 4 o.o 3.0 I 11.5 2 40 J o.o o.o 0.6 1.2 0.6 2.4 I 16.0 250 I o.o o.o 0. 4 2.0 o. 6 3.a I i 5. 8 260 I o.o 0 * :) 1. 2 2.0 1. 0 4.2 I 15.0 2 70 I o.o 1.2 1.0 3.0 1. 4 6.5 I 14.5 .. _;

280 I 0.2 o.o 0.6 1.2 0.2 2.2 I 12. 2 2 90 I o.o o.o- Q.2 0.8 0.2 1.2 I 1 s. 4 300 I o.o 0.4 0.6 2.2 o.o 3. 2 I 1 3 .. 2 310 I 0.2 1.2 1.2 1.2 o. 0 3.8 I 9. 7 320 I o.o 0.2 o.o o.o o.o 0.2 I 4. 7 330 I o.o 1.2 0.2 o.o o. 0 1. 4 I 5.7 340 I 0. ') 0.6 0.2 o.o o.o o.s I 6.3 2 50 I 0.2 0.4 o.o o.o o.o 0.6 I 3 .. 6 360 I 1. 0 0.6 0.4 o.o o.o 2. () I 4. 4 ( \ Variatlel 1. 2 0.2 o. 2 o.o O;. 0 1.6 I 3.0 ,* (

            -+

Total I 11. 3 28.0 3 6 * .3 18.5 4.0 98.0 I 8. 9 Percent Calm: 2. !) 100.0 Note: Sensor height is 10 feet. Tabulated values are percent of 504 hours of data.

170 Fig. 6.lL I WIND ROSE - DECEMBER 1977 PALISADES NUCLEAR PLANT - STATION P03A *

  • 1'.

N *--

                                                                ,I
                                                                \
                                                                \

J

  • ......_,,J
                                                       .          j
                                                         *1
                                                         . J

__ _) __ I r:;:'\

                   ~IND 1-3 SPEED IN MILES PER HOUR s-12
          ~-----==4=-=7=-----==,3=-1=8==----

1S+

Fig. 6.2L 171. WIND ROSE - DECEMBER 1977 r' ** PALISADES NUCLEAR PLANT - STATION P07A . t I . I I N t! .

  \      *'
  • t E
  • 1S+

172 VII. VISIBILITY Visibility is measured at stations P03A and P07A with visiometer systems manufactured by Meteorology Research I I Incorporated, Palo Alto, California. Visibility data are recorded as voltages, converted to distances, and reported to the nearest 0.1 km. Digitized data are processed in terms

                                                                               \

of hourly values for tabulation. The data are classified by ~ episodes during which an obstruction. to visibil~ty occurred I and are summarized for each month. Visibilities of 3 km, 1 km, and 0.5 km were used as critical distances for determining episodes for the following reasons:

1) The visiometer system was not sensitive to visibility changes which occurred at visib-ilities greater than about 3 km. In addition, the operational significance of visibilities greater than 3 km is small.
2) As visibility decreases to 1 km or less, its operational significance increases markedly.

If the obstruction is caused by fog, visibilities of 0.5 km or less are classified as heavy fog at National Weather Service Stations. In the data tabulations, the "onset" of an episode is the time at which the visibility decreased below 3, 1, or 0.5 km, having remained greater than that distance for at least 1/2 hour prev.iously. The "end" of an episode is the time at which the visibility increased above 3, ~, or 0.5 km and remained greater than that

                                                                              *-I I

distance for at least 1/2 hour. "Duration" is defined as the total

   'time elapsed between "onset" and "end".                                       I;

___ /

173 "Accumulated time" is the total time during which the

  • visibility was actually below that distance during a given episode. It can be noted that "duration" and "accumulated time" may differ significantly during periods of highly variable visibility.

The type of visibility obstruction is given for each episode of visibility less than 3 km, along with the minimum \i . visibility and its time of occurrence. A preliminary analysis of visibility data obtained during

i. '

snow has shown occasional episodes with significant reductions in visibility but no measured precipitation associated with

.I .

them. Possible reasons for this behavior, which occurs mainly during gusty winds, are.that (1) the visibility may indeed be reduced, but sufficient snow has not entered the precipita-tion gage because of the gusty wind and/or (2) the water equivalent of the snow did not exceed the 0.01 inch sensitivity of the

  ~        gage and/or (3) the actual visibility is greater than that indicated by the visiometer, which may over-respond to snow.

The type of obstruction to visibility was determined on the basis of (1) hourly weather observations made at Benton Harbor Airport between 0630 and 2030 each day and at Muskegon, Grand R~pids~ and South Bend on a 24-hour basis and (2) measure-ments of precipitation and other variables within the meteorolog-ical network. The visiometer at P07A was out of service in January and February 197*6*

   \     -

174 TABLE 7. 1A VISIBILITY OBSTRUCTION .\T STATION POJA JANUARY 1977 INSTROl!EMT IN OPERATION: 1200 21 JAN-1635 26.JAN 1700 26 JAN-1930 26 JAN 2005 26 JAN-2J05 26 JAN 2350 26 J AN-0425 27 JAN 0500 27 JA N-0605 27 JAN 0635 27 JAN- 1025 27 JAN 1100 27 JAN-1310 27 JAN 1500 27 JAN-2235 27 JAN 233 5 27 JAN-0100 28 JAN

                                                                 'IOTAL HOURS OF OPERATION:                  150.6 SJ. Kn                                            'S 1 Kl'I                                       '.S'.045 K!'I.

DAY OBSTR EPISODE ACCOlHJLATED EPIS_9DE ACCUMULATED EPISODE ACCUftULATED MIR. VIS TIME OF TYPE ONSET END DORATIOH TI~E SJ Kl! OHSET END DURATION Til'tE .:!'.;1 Kl! ONSET END DURATION TirtE SO. SKl'I FOR DAY !IN VI~ (EST) (BR) (HR) (EST) (BR) (HR) (EST)* (HR) (HR) (KMl (EST) 21 SNOW 2255 2359 . 1. 07 o. 40 NONE NONE 1.1 2349

1. 07 o. 40 22 SNOW 0000 0004 0.06 o. 06 NONE NONE 2.9 0000 0.06 o. 06 23 SNOW 1033 1037 o. 06 o. 06 NOHE NONE 2. 1 1034.

0.06 0.06 25 SMOV 0339 0356 0.28 0.10 MONE NONE o. 7 2036 SNOV 0708 0745 1054 0.61 o, 27 0.63 NOHE NOYE NONE I __l1, SNOW 0951 1.06 MONE SNOW 1126 1159 0.55. o. 55 NOHE NONE SYOV 2004 2046 o. 70 o. 25 2035 2037 o. 03 0.03 NONE 3.20 1.80 o. 03 o. 03 26 SHOi 1101 1634 5.54 4. 64 1203 1222 0.33 0.07 NONE o. 2 1629 1423 1527 1.07 1. 07 1459 1512 o. 22 0.22 1610 1634 a. 40 a. 40 1613 1633 0.33 o. 33 SNOW 1703 1927 2. 41 2.09 NONE MONE SNO!I 2006 2305 2.99 2. 88 2039 2305 2. 43 1. 67 NONE SHOW 2347 2400 0.22 o. 22 2347 HOO o. 22 0.22 NOME I

o. 56 11.16 9. 83 4.45 3. 43 0.56 I

27 SNOW 0000 0423 4.39 4. 39 0000 0423 4. 39 4.28 0006 0107 1.03 o. 55 0.3 0019  ! 0143 0218 o. 59 o. 19 0256 0317 0.34 0.34 SHOW 0458 0807 3.14 J. 14 0458 0603 1.07 1. 07 NOME 0644 0759 1. 25 1.25 NONE SNOW 0835 1022 1. 79 1. 79 0835 1022 1. 79 1. 25 NONE SNOW 1101 1313 2.19 2. 05 1101 1258 1. 94 a. 96 NONE SNOV 2123 2239 1.26 o. 86 NOHE NOM'E SHOii 2337 2400 0.38 o. 38 NOHE NOHE

13. 15 12. 60 10. 43 0. 01 1. 95 1.08 28 SHOii 0000 0100 1.00 1. 00 0030 0100 o. so o. 50 0057 0100 o. 05 0.05 o. 4 0100
1. 00 1. 00 o. 50 a. 50 o. 05 o. 05 .I
29. 68 25. 73 15. 41 12. 78 2. 56 1.68 PERCENT OF TOTAL HOO BS OP OAT! WITH VISIBII.:tTl EQOAL TO oa LESS THAN _I, J KM 1 K~ O. 5 K~

l'OG (P) o. 0 o.o o. 0 HAZE (H) o.o o. 0 o.o DRIZZLE (L) o.o o.o o. 0 BAIN (R) o.o o. 0 o.o SNOW (S) 17.1 0. 5 1.1 __ / F&B o.o o.o o. 0 F&L o.o o.o o.o F&R o.o o.o o. 0 F&S o.o o. 0 o.o TOTAL 17. 1 8.5 1.1

175 T .\84..E 7. 2.\ VISIBILITY OBSTRUCTION AT STATION P071 JA'llJARY 1q77 INSTRO~Fwr I~{ OPEnATION: 0000 , JAN-1210 a JAN 1700 8 JAN-1135 11 JAN 1700 11' JA tl-230S 11 J AK 0825 12 JAN-1810 16 JAN 0810 17 JAN-1635 17 JAN 0810 18 JAN-0035 28 JAN TOTAL H0UUS OF OPERATION: S99-S SJ KM S 1 K:1 'S:O. 5 Kl'! i DAY OBSTP. EPISODE ACCU!'!:ULATED P.P!SODE ACCO,"!ULATEO F:P!.SODE ACCUrtULATED l'IIN VIS TI"E OF '- TYPE ONSET Imo DURATION 'IIME .$3 i\~ OUSET rrno DURATION Tl11F. S 1 KM ONSET ENO DO~ATION TirtE SO .. SKrt FOR OU "IR vrs (EST) (HR) (HR) (ESI) (HR) (HR) (ESI) (HR) (HR) (K"J (EST) SNOW 0013 0043 a.so a. 18 0040 0041 a. o1 o. 01 NORE o. 8 0041 SNOW a 130 01SS a. 42 0. 42 NONE NONE \_. SNOSl 0 S13 OS31 o. 30 a. 14 NONE NONE SNOR 1309 1 342 O. SS o. 22 NONE NONE

1. 76 o. 95 o. 01 SNO'il 1749 17S4 o. 08 NONE NONE 2. 4 17S2 0.00 a. 08 F /H 1046 1104 0-29 o. 29 NONE NONE o. 3 2227 F/S 1418 2400 9.10 9.67 1928 1HO o. 20 o. 09 NONE 2044 2346 3.0J 2. 6S 2147 2236 0.82 o. s2 9.98 9.95 3. 22 2. 74 o. 82 o. s2 7 SNOW 0000 0214 2. 24 1. 74 NOHE NONE 0.) 0821 SNOW 0409 0722 J **u 1. 74 NONE NONE SNOi' 07S9 0914 1. 2S 1. 14 0810 oes1 o. 6e 0.46 0819 0829 0.11 0.17 SNOW 09SS 120 1 2. 11 1.39 1101 1144 o. 72 o. 20 NONE SNOW 1259 1347 0. 79 o. SJ NONE NONE SNOi 1417 1437 o. 32 o. 21 NOHE NORE SNOR 1507 1606 o. 98 o. 49 NONE NONE
10. 9 1 7. 25 1. 39 0- 66 o. 11 o. 11 SNOW 0422 1210 1. 80 6. 7S 0644 0807 1. 39 0. 74 NONE 0.) 1042 091) 0955 o. 11 a. 11 0922 09SO o. 46 1036 1210 1. S6 1. S6 1040 1210 1. 49 SNOW 16S8 1912 2. 24 2. 24 NONE NONE
10. 0) e. 99 3. 6S 3. 00 1. 95 1. 9S 10 SNOW 0430 0446 o. 28 0.20 NONP. NONE 0.1 1632 SNOW 1218 1258 0.67 o. ss NONE NONE SNOW 14S6 23S3 8. 9 5 8. )8 1508 210S s. 9S 3. 31 1510 17S2 2. 70 1.2Q 18S6 1 9S) o. 94 o. oa 2033 2102 o. 49 o. 19 2142 2.02 1. 07 2220 2300 o*. 68 o. 18 9.90 9.21 1. 91 4. 39 L~. 82 1. 64 11 SNOW 0004 0149 1. 76 o. 69 0007 0024 o. 29 a. 04 NONE 0.1 , 138 SNOW C808 0848 0.67 o. 2S NO!IE NONE SNO\l 1007 1138 1. s 1 1. 1 S 1108 1138 o. S1 a. 51 1122 1138 o. 26 b. 26 SNOll 2243 230S o. 38 o. 38 NONE NONE
4. 32 2.47 o. 79 . O. SS o. 26 o. 26 12 SNOW 0826 170S 8. 6S 8. S8 1011 1 306 2. 9 3 1. JS NONE o.s 2144 SNOW 2009 2400 3. as ). SS 203S 2400 3.41 ).41 2136 21S7 0.34
12. so 12. 42 6. 34 4. 77 o. 34 o. 34 13 SNOW 0000 082) 8. 38 8. 38 0000 OOS7 0. 9 1J o. 94 NONE 0.8 0000
8. 38 8. 38 o. 94 o. 94 11& F/S 0118 0328 2. 1 s 2.1 S NONE NONE 1. 6 1012 F/S 0944 10S1 1. 11 1. 02 MONE NONE P/_S 11S4 1313 1 1. 32 0. 38 NONE NONE
t.56 3.55 15 SNO'W 0631 06SO 0. 32 o. 30 NO~E NONE 1942 SNOW 093S 1116 1. 69 o_ 8] 1011 1042 o. s2 0.07 NOHE SNOi' 1229 123 9 0.17 0.17 NON:: !JONE SNOW 1357 i 4JO o. 56 o. 47 13S9 1417 a.. 30 o. 05 NONE SNOR 1711 17"0 0- 48 o. 48 NONE NONE SNOW 18*2 2400 5. 31 4. 1 S 1941 2128 1. 78 0. 74 1942 1943 o. 02 0.02 2333 2400 o. 45 o. 24 NONE
s. S3 6.41 3. OS 1.11 o. 02 16 SNOW 0000 1812 18. 19 16. 9S 0000 0143 1. 71 o. 43 NONE o. 1 0922 0301 J327 o. J4 a. 11 NONF.

0601 0637 o. S9 o. 2" NONE 0733 J753 Q. 34 a. 34 NONE OR2B 1107 2 .. 6!J 1. 27 0919 0927 o. 13 a. 1J 1021 1106 o. 75 o. 10 1138 1812 6 .. SS 5. 78 1 224 1627 4. OS 2. 12 1111:i 1812 0- 46 o. 08 1d. 19 16. 9S 12.17 a. 19 s. 40 17 5 NOW 0913 0834 o. J6 a.. J6 NONE 0.1 1637 SNOW 10 16 110 3 o. 1 a o. 37 NCNF: snow , , 1&4 12, 7 o. SS o. 21 NOf:E SNO!t 1404 1637 2 .. so 1. 9S 1~57 1S2'J o. OJ NC.!IE 1622 1637 0.26 1630 1037 0. 13 o. 13

o. 72 o. 29 o. 1) o. 13 18 SNO~ 0812 1109 2. 96 NC~C NC?IE 1. 2 0812 s~o~ 2107 2136 o. 16  :-IONE !lONE
3. 43 J .12
                                                                                                                                                                     -.)

176 i r TABLE 7.2A (CONT.)

!:3 KH 51 Kl'! ~O. 5 K!l DAY OBS TB EPISODE ACCO l'IULAT ED EPISODE ACCU3ULATED EPISODE ACCU ~ULUED nu VIS TI3 E OF TYPE ONSET END DURATION Til'IE S3 Ktt ONSET END DURATION Til'.IE S1 Kl! ONSET END DURATION T:I3E ~O. 5K3 FOR DAI !IN VIS (EST) (HR) (RR) (EST) (HR) (HR) (ES'I) (HR) (BB) (K3) (ES'r) 19 SHOW 0149 D155 D.11 o. 11 NOHE NONE. 2. 6 D152 SHOW 1622 1703 a. 66 o. 68 NONE NORE
o. 79 o. 79 i 0.46 o. 46 \

2D P/S 1253 1321 HONE NOHE 1. 5 1641 .,/ F/S 1639 1645 o. 09 o. 09 NOHE NONE 21 ssov SNOW SNOW 03D4 0925 1053 03:!6 D951 1350 0.56 0.36

o. 43 2.96
o. 56 0.18 0.32 1.33 0933 1203 0949 1223 NONE
o. 26 D.34
o. 06 0.14 1206 1207 NOHE NORE 0.02 o*. 4 1207
                                                                                                                                                                   -,   (

0.02

3. 74 1. 83 o. 62 o. 19 o. 02 23 F/H 0.56 o. 56 NONE . NOBE 2.8 2400 0.56 0.56 24 l'/L 0000 1125 11. 41 11.39 NONE BONE 0759 F/S 1603 1623 0.33 a. 33 NONE BOBE
11. Jij 11. 72 25 SNOW 0357 0434 0.62 o. 46 NONE NOSE 0.9 1054 SNOW 0716 0755 0.65 o. 51 NORE HONE.

SBOV 0936 1241 3. 08 2.27 1044 1055 o. 18 o. 08 NONE SBOll 1956 2033 o. 62 0.30 NOHE NOHE

4. 97 3.55 o. 18 o. 08 26 SN011 0713 D943 2. 49 1.90 NONE HONE 0.1 1517 ssov 1049 2400 13. 19 13.19 12 lQ 2400 11. 76 10. 55 1228 1332 1. 07 o. 44 1431 1806 3. 58 2.37 2012. 2209 1. 95 o. 96 2242 240D 1.3D D. 79 15.68 15.08 11.76 10.55 7.90 4.56 27 SHOW OODO 1457 14. 9 4 14. 94 0000 1312 13. 2D 11. 71 0003 0047 D.*n D. 43 D.1 0026 0124 D409 2. 76 1.DB SHOW 2122 2400 2. 63 2. 63 2336 2400 o. 40 o. 40 NONE 17.58 17.58 13. 60 12. lD 3. 48 1.52
                                                                                                                                                                    -I 28  SHOW    OODO  0039       0.64              0.64    DODD   0039        o. 64            o. 64  0018   0039       0.34          D.34      0.3    0033 0.64              D. 64                      o. 64            o. 64                                  0.34 163. 09            144.92                      67. 06           so. 22                    25. 66        13. 92 PERCENT OP TOTAL HOOBS OF DATA WITH VISIBILITY EQUAL TO OB LESS TBAN 3 K!                     1 KR               0.5 K8 FOG  (F)                       o.o                      o. ~               o. D HAZE (B)                       D.D                     o. 0                o. 0 DRIZZLE     (L)                o.o                      o.o                O.D RAIN   (B)                     0.0                     o.o                 o.o                                             .  ~ l SNOV   (SI                   19.B                      7. 9                2. 2 P&H                            0.1                     O.D                 o.o P&L                                                     D.O                D.O
                                                                     '* 9 F&R                            o.o                      D.O                o.o P&S                            2. 4                     o.s                0.1 i

TOTAL 24.2 B. 4 2.J ,__J

177 I* TABLE 7. 1B VISIBILITY OBSTRUCTION AT STATION P03A FEBRUARY 1977 IHSTBOKEBT IM OPERATION: 1225 4 PEB-2400 9 PEB 1200 10 FEB-0625 16 PEB TO~AL HOURS 07 OPERATION: 270.0 S3 K!I S1 Kl'l so .. s P::l'I DAY *oaSTR EPISODE ACCUKULATED EPISODE ACCUKOLATED EPISODE ACCOKOLUED KIH VIS

  • TUB OP TYPE ONSET END DURATION TI~E SJ KM ONSET END DURATION TIRE S 1 KR OMS ET END DDRATIOH TIB E SO. 5Kft
  • FOR DAY KIH VIS (EST) (HB) (HR) (EST) (RB) (HR) (EST) (RR} (RR) (KS) (EST}

SNOV 1225 1514 2.82 2. E4 1225 1249 a. 40 0.18 HORE 0.5 1345 1343 1353 o. 15

  • O. IS 1345 1345 o. 01 0.01 SHOW 2327 2400 o. 55 0.28 NOBE NOHE 3.37 2.92 o. 56 o. 33 0.0 I 0.01
     ---.. -------------------------=-----------------------------------------------------------------------------------------------------

SHOW 0000 0022 0.37 o. J7 0008 0014 o. 09 o. 09 0010 0012 o. 04 0.04 0.2 0011 S!IOV 0339 0356 0.29 o. 29 HONE HON& SNO'il 1136 1309 1.57 o. 54 1149 1239 a. 83 o. 08 HORE SHOV 1646 1700 o. 24 o. 05 . HONE HONE

2. 46 1.26 o. 93 0.18 o. 04 a. 04

)

\.                  0939  1040      1. 02             o. 45    1005   1ao6       a. a2           o. 02                         HONE                           0.8  1ao6
1. 02 o. 45 o. 02 a. a2 11 P/H 1905 2108 2.04 2. aq HONE NORE 1. 6 1956 2.04 2.04
   )

12 P/R 0101 a114 0.22 o. 22 NONE HO!IE 1. 4 1651 P/R 1638 1721 0.72 a.29 HORE RONE P/B 2204 223 9 0.58 a. 12 NONE BONE r

!                                   1. 52             0.63

( 13 SNOV 1156 1217 a.36 o. 22 NOHE 1.7 1212 0.36 a.22 14 SHOV 1134 1154 0.33 o. 17 NOH& RONE 0.8 1510 SNOW 1500 1514 o. 24 o. 24 1509 1510 0.01 o. 01 Non:

o. 57 a. 41 o. 01 o. 01 15 SNOV 0750 0755 o. 09 o. 09 NORE MONE 2.0 0752 o.a9 o.a9
11. 42 8.02 1. 5~ o. 54 o. 04 o. 0 4 PERCENT OP TOTAL RO URS OF DATA llITH VISIBILITY P!QOAL TO OR LESS TSAR J KH 1 Ka 0.5 K!

FOG (P} 0.0 o.o o.o HAZE (B) o.o o.o o. 0 DRIZZLE (LJ o.o o.o o.o BHH (R) a .a o.o a.a SHOV (SJ 2.0 o. 2 o. 1 F&H 0.9 a.o o. 0 P&L o.o o.o o.o F&R a. 1 o.o o. 0 F&S o. 0 o.o o. 0 TOTAL 3.0 o. 2 < a. 1

178 TABLE 7. 28 VISIBILITY OBSTRUCTION AT STATION P07A FEBRUARY 1911 INSTRUMENT IN OPERATION: 1520 2 FEB-0605 10 FEB 1310 10 FEB-2400 28 FEB TOTAL HOURS OP OPERATION: 625.6 SJ KM :S 1 KH S0. 5 KM DAY OBSTR EPlSODE ACCO!'tDLATED EPISODE ACCUMULATED EPISODE ACCOMULATED MIN iIS TaE OP TYPE ONSET END DUBA.TION TI?'!E SJ Kl'! ORSE'r END DUR ATIOlf TI!tE :S1 Kl! OH SET END DURATION TI.HE SO.SK.! FOB DA t  !!IH VIS (EST) (HR) (HF) (EST) (HR) (H BJ (EST) (HBJ (HR) (KM) (EST) SNOW 2J42 2400 0.30 Q. 30 NONE NONE 2.6 2400 O.JO 0. 30 SNOW 0000 0056 0.9 3 0- 93 NONE HONE 1.7 1003 F/S 09JJ 1043 1.11 a. 47 NONE NONE 2.10 1.40 4 F /S 1001 U13 ** 19 2. 66 NONE NONE o. 7 1611 F/S 1451 1626 1.60 o.59 1604 1612 o. 12 0.02 NONE

5. 79 J.. 25 0.12 0.02 SNOW 0113 0134 0.35 o. 35 NONE HOBE 1529 SROV 03J2 0351 Q. 31 0.2J NONE NONE l, SROll 1304 1102 3.95 3. 21 1309 1. 69 o. 49 NONE (

1527 0. 56 o. 18 1529 1547 o. 29 0.02 /

4. 61 3. 79 2.24 0.67 Q.29 0.02
   ------------------------------------------------~---------------------------------------------------------------------------------=--

SNOW 1128 1149 0.34 0.09 1145 1146 0.01 o. 01 NOSE O. B SNOW 1227 1315 o. 81 0.16 NONE HONE SNOW H17 1430 0.22 o. 12 NOHE HONE 1.37 o. 37 o.o 1 o. 01 10 POG 0040 0604 5. 39 5.39 NONE HOHll 1. 0 021"

5. 39 5.39 12 F/R 0250 0745 4.93 ** 93 NONE NOHE o. 7 1716 F/R 15S4 1734 1.68 1. 68 1714 1717 0.05 o. 05 HONE P/R 1810 1859 0.82 0.82 NONE NONE F/S 2147 2400 2. 21 1. 73 NONE NOHE
9. 63 9.15 o. 05 o. 05
                                                                                                                                                                               .    )

1J F/S 0001 0014 0.21 o. 21 NONE NONE OSQ6 F/S 0331 0341 o. 17 0.17 NONE NONE F/S 0 441 0605 1.29 o. 90 0531 0548 o. 29 0.10 NONE 100 1 o. 59 O.J1 NONE NONE SHOW 5110'11 0925

                   .1045   1311       2-42           1. 32       1112   1131        0.31            o. 01                       HONE                                                i SNOW      1407   1505       0.96           0.21                           MONE                                        HONE                                       *        '
5. 65 3.17 o. 60 0.11 14 SNOW 1149 1349 2. 00 o. 67 1210 1211 o. 02 0.02 NONE 0.1 1211 SNOll 1459 1539 0. 67 o. 23 NONE NONE
2. 66 o. 90 o. 02 15 SNOW 0558 0627 o. 47 o. 11 NONE NONE 1.0 0749 J

SNOW 0734 0805 0.53 0.53 NONE NONE 18 F/H 2114 2400 2. 76 2. 76 NONE NORE 1.9 2*00 2.76 2.76 19 P/H 0000 0619 6. 32 6. 26 0118 05*6 4. 46 3. 9 3 0120 0507 3. 78 3.00 0.1 0121 F/S 1308 1417 1. 14 o. 66 NONE NONE F/S 1511 1529 0.31 O. 1 B NONE NONE

7. 76 1.1 o 3. 93 3. 78 3.00 - -~;

20 SHOR 0642 0716 0.56 o. 14 NONE NONE 1.3 0700

o. 56 0.14 23 fOG 0559 0738 1.66 1. 66 NONE HONE 2. 5 0702 1.66 1. 66 24 F/S 1719 1835 1.21 1. 16 NONE NOHE o. 9 F/S F/S 2146 2351 2247 2400
1. 00
o. 14
o. 72
o. 1* 2353 23 54 NONE
o. 01 o. 01 NONE NONE
                                                                                                                                                                             / i i
2. 42 2. 02 0- 01 .i 25 F/S 0000 0019 o. 32 0.10 NONE NONE 1. 6 0017 0.32 0.10 27 SNOW 0540 1321 7. 69 7. 69 0707 10*8 3. 68 2. 99 0908 1015 o_ "" o. 26 0.3 1000 1122 11 36 o. 23 o. 23 NONE SNOW 1552 1727 1. 59 0.67 NONE NONE
9. 27 8. 36 3. 91 3.22 o. *4 o. 26 28 SNOW 0501 0508 0.11 o. 11 NONE NONE 2.4 0502
o. 11 o. 11
63. 37 so. 61 11. 41 e. o3  :&. 5, 3. 2 B

179

  • TABLE 7.2B (CORT.)

PERCENr OP TOTAL BOURS OP DATA WITH VISIBILITY EQUAL TO OB LESS TBA! J K~ 1 xe o. 5 xe FOG (F) 1.1 o. 0 0.0 HAZE (B) o.o o.o O. D DRIZZLE (L) 0.0 o. 0 o. 0 BAIN (R) o. 0 o.o o.o SN Qi (S) 2.8 o. 6 < 0.1 i F&H 2.2 0.6 o. 5 I, F&L o.o o. 0 o. 0 P&R o.~. < o. I o. 0 F&S 1. 6 < 0.1 o.o TOTAL 8.1 1. 3 o.s

180 TABLE 7. lC VISIBILITY OBSTRUCTION AT STATION P03A OARCH 1977 lNSTBU!EHT IN OPERATION: 1240 M&R-1800 UR 0650 10 "AB-2400 31 aAR TOTAL HOURS OF OPERATION: 5H.5

                             ~3  K.tl                                      ~1   KH                                   50.5 Kl!

DAY OBSTR EUSOOB ACCUMULATED EPISODE  !.CCU i!'!ULATED EPISODE ACCU!IJLATED HIN VIS TI"B OP TYPE OKSJ!'! END OURAUON TIME ~J K~ OHSEX END DURATION TIME :S1 gM ONSET END DURATION TI!E S:O. SK!t P'OB DAY !rK VIS (EST) (HR) (HR) (EST) (HR) (BR) (EST) (HB) (HR) (g!J. (EST) 17 SNOW 1751 1755 0.06 o. 06 NOHE NONE 2.0 1752 SNOW 1852 1930 0.64 o. 2U NONE NORE --, 1,' 0.70 0.26 18 F/S 0037 0102 NOBE HONE 0.1 0905 I "F/S 0719 0946 0728 0935 2.12 2.12 0737 0752 o. 24 0.16 0839 0933 o. 91 o. 74

                                                                                                                                                                   ,)
2. 87 2. 65 2. 12 1. 16 o. 90 1,

20 P/S 0133 0737 6. 05 5. 77 0340 0713 3. 54 3.48 0351 0700 3. 1Q 3.01 0.1 0620 6.05 5. 77 3.54 3.14 3.01 28 l'/R 1257 1305 0.13 o. 13 NONE NONE 1. 6 1259

o. 13 o. 1 J ]
9. 75 8. 61 5.67 5. 60 4.30 l. 91 J

PEBCEHT O"F TOTAL HOURS OF DATA WITH VISIBILITY EQUAL TO OB LESS THAN --) 3 u 1 K" 0. 5 K! l'OG (Pl o. 0 o. 0 o.o HAZE (BJ o.o o. 0 o. 0 _\ DRIZZLE (LJ o.o o.o o. 0 RAIK (B) o.o o.o o. 0 I l SKOV (SJ < 0.1 o. 0 o. 0 } F&H o.o o. 0 o.o F&L o.o o. 0 o.o P&R < o., o.o o.o I I { P&S 1. 5 1.0 o. 7 TOTAL 1.5 1. 0 o. 7 i J

181 TABLE 7.2C VISIBILITY OBSTROCTION AT STATION P07A "ABCR (977 IRSTRU"ENT IN OPERATIOH: 0000 1 SAa-2qoo 31 SAB TOTAL BOOBS OP OPERATION: 7qq. 0 SJ Kl! S1 Klt so. 5 !t!'I DAI OBSTB EPISODE ACCU"ULlTED EPISODE ACCU SU LATED EPISODE ACCU!ULATED SIM VIS TI8B OP TYPE OHSE'f END DURATION TiftE SJ KS ONSET END DORATIOR TI!!E :S 1 Kll ONSET !HD DURATION Tl!E SO. SK!! FOB DAI !IJ:U VIS (ESTJ (BB) (RBI (ESTJ (HBJ (RBI (ES?) (RBI (BB) (Kl!). (EST) P/R 0916 1127 2.18 2. 18 0953 1108 1.25 1.H 1019 lOQO 0. 36 0.36 o.q 1021

2. 18 2.18 1. 25 1. )q o. 36 o. 36 17 P/S 1858 200 1 1.05 0.96 NOHE NOHE 1.05 0.96 18 P/S 0006 0056 o.au o. n HOME 0.1 P/S 0725 1012. 2. 78 2.78 0733 1006 2. 54 2. 54 0735 1002 1. 76 P/S 1602 1613 o. 18 0.18 NOHE
3. 80 J. 13 2. 5q 1. 76 20 P/S 0137 0826 6.80 6. 80 OH2 0209 O. qS 0.12 BOBE 0.1 0806 0253 oq22 1.q8 0. 96 NOHE 0529 0619 0. 83 o. 1q HORE 0757 0806 0.1 q 0. IQ 0802 0806 0.06 0.06 P/S 1017 1033 o. 2s* 0.25 NOHE NOHE 7.06 7.06 2.91 1.37 0. 06 0.06
 --------------------------------------------------------------------------------------------------~---------------------~-----------

22 FOG 0200 0329 0.58 HORE HOBE 1. 7 0205 1.49 o.sa 27 P/R 2313 2335 0.37 0.37 HORE !Ol1E 2.8 2315 0.31 0.31 28 F/R oq53 0021 J. 46 3.11 MORE HOBR 1.8 0508

3. 46 3.11 29 P/R DO 12 0032 0.33 O.JJ NOBE RONE 0015 0.33 0.33
 ---------':"'-------------------------------------------------------------------------------------------------------~-.---------~-

19.13 17.73. 6. 70 5. 05 2.87 2. 18 PEBCEHT OP TOTAL BOOBS OP DATA WITR VISIBILITY EQUAL TO OR LESS TBAB J K! 1 K! 0.5 K! FOG (Pl 0.1 o. o o. 0 BAZE (BJ o.o o. o o. o DR.IZZLE (L) o.o 0.0 o. o BUB (R) o.o o.o o.o SBOV (SJ o.o o. o o.o F&H o.o o.o o.o P&L o. o o.o o.o P&R 0.8 0.2 < 0.1 F&s 1. 5 o.s o. 2 TOTAL 2.4 o. 7 0 * .3

182 TABLE 7.1D VISIBILITl OBSTRUCTION AT STATION P03A APRIL 1977 INSTBO"ENT IN OPERATION: 0000 1 APR-1530 1 APR 1050 5 APR-2400 30 APR TOTAL ROURS OF OPERATION: 626.7

                                       .$3 KH                                        *~1  K!'t                                 :SO. 5  KH DAY      OBS TB                  EPISODE       ACCUMULATED                      EPISODE      ACCO MU LATED                   EPISODE    ACCUMUtATED         HN VIS     TIME OF TYPE    ONSET   END     DO RATION     TI" E SJ KM ONSET END            DURATION     TU'IE  ~ 1 Kl'! ONSET   END    DURATION    T.Il'l. E SO. SK.!! FOR" DU    UN VIS (EST)          (RB)           (HR)             (EST)         (RR)          (HR)            (EST)          (HR)            (HR)          (KH)       (EST)

SNOW 1050 1134 0-74 O. J2 NONE HONE 1.2 2143 SRO'li' 2141 2145 D-07 0.07 NOHE NONE a.so o.39 FOG 0-H 0- 14 OJSO OJ52 O. OJ O. OJ NONE 0.5 0351

o. 14 o. 14 o. 0 3 o. 03 7 FOG 0519 0607 a. so o. 56 .0521 0525 0.06 o. 06 0522 0524 o. 03 Q.03 0.1 0523 O. BO 0.56 o. 06 o. 06 O. OJ O. OJ 15 FOG 1939 201J 0.55 o. 49 NONE NOBE 1.0 2000 0.55 0.49 19 RAIN OB20 0824 0. 07 0.07
o. 07 0.07 HONE NOSE 1.9 OB22
                                                                                                                                                                                      ]

0 20 BAIN 1625 1628 0.06 o. 06 NONE NONE 1.J 1626 RAIN 1916 1929 o. 20 0.20 NONE NONE 0.26 o. 26 22 FOG 0105 0222 1.26 1. 2B 0108 0159 o. BS o. B5 0115 0120 o. OB O. OB o. 5 0118 F/R 0719 0744 o. 42 o. 42 NONE NONE

1. 69 1.69 O. BS o. 85 o. OB O.OB 23 FOG 2351 2J54 O. OJ 0.03 NONE NOHE 2.6 2353 0.03 0.03 24 FOG OOJ2 0246 o. B9 0109 0110 0.01 o. 01 NO!IE 0-9 0109
., o. 99 o. 01 o. 01 ..__________ _

29 FOG 2352 2355 a.a* o. 04 NONE NOBE 2*. 3 2353 0.04 0.04 30 FOG 0326 ' 0350 o. 40 0.12 NONE HOBE Q.6 2249 FOG 2146 2400 2.24 1. 26 2214 2400 1. 77 o. 39 NONE

2. 64 1. 39 1.77 o. 39 (__ )
9. 26 5. 94 2.:11 1.J3 o. 11 o. 11 PERCENT OF TOTAL ROUBS OF DATA WITS VISIBILITY EQOAL TO OB LESS THAN O.S KS FOG HAZE (F)

(H) 0.8 o.o 0.2 o.o o. o.o 1 DBlZZLE (L) o. 0 o.o o. 0 RAIN (B) 0.1 o. 0 o. 0 SNOW (S) o., o.o o. o F&H o.o o. 0 o. 0 F&L a.a o.o o. 0 F&B o. 1 o.o o. 0 F&S a.a o.o o.o TOTAL o. 9 0.2 < o. 1

                                                                                                                                                                                   * .*. I '

183

  • INSTRO!ENT IN OPERATION:

TABLE 7.2D VISIBILITY OBSTRUCTION AT STATION P07 A APRIL 1977 0000 1230 0740 TOTAL BOORS OF OP!!BATION: APB-11 SS S APR APB-OSS5 7 APB APR-2400 JO APB 717.6 S3 Kl! 'Sl 1il'l SO .. 5 KPI DAY OBSTB. EPISODE ACCO !ULA TED EPISODE ACC:U!'!OLl.TED EPISODE ACCU!OLATED BIN VIS TI!E Ol T!PE ORSET END DURATION '.rIHE :SJ P::H ONSET END OORAT:ION TIP!E S1 !\!! OlfSET E'RD DURATION T:I!E SO. SU FOB DU l!IN *VIS (EST) (HBJ (H RJ ( EStJ (HR) (HR) (EST) (HR) (BB) (lt!) (EST)

     ------------~--------------------------------------.:.-------------------------------------------------------------------------------

2 l/R 0335 0400 o. 42 o. 42 HONE RONE 0.4 1406 P/R 0431 0811 3. 66 3.66 NORE RONE BAIN 13S6 1411 0.23 o. 23 140S 1409 o.os o. 05 1408 1.408 o. 01 0.01 4.31 4. 31 o.* o5 o. 05 o. 01 o. 01 4 SROW 1129 1305 l.S9 1. SB NONE SORE 0.11 1841 F/S 1752 1851 o. 99 0.9S 1B*13 1842 a.so o. 02 NOHE 2.S8 2. 54 o. so o. 02 5 P/S 0233 0252 O.J3 0.33 NONE NONE 0.2 1127 P/S 0620 0638 Q.29 0.29 HONE KORE P/S 074 I 0951 2. 16 1. 73 KONE NOME SIOW 1043 1135 o. B6 Q.64 1048 1129 0.10 0.30 1114 1128 o. 24 0.19 SNOW 2204 2252 a.Ba o. 31 HORE ROBE _______ .,:__________________~:~~--------~::!___ ~-------------~:~~--------~:=~--------------~:=~--------~:~~----------------- FOG 0429 043S 0.10 o. 10 NONE HONE 1.0 oq33

o. 10 0.10 20 RAIN 1911 2005 o. 90 o. 47. 1915 191B o. 05 O. OS ROBE o.s . 1916
o. 90 a. o5 o.os 22 F/R 0204 0618 4.23 4. 23 0232 0341 1.16 1.16 NORE o. 6 0250 I. - F/B 065S 0720 o. 42 0.42 NOHE BOMB F/R OB03 083B o.sa O. SB HORE HONE
5. 23 s.2J 1.16 1. 16 24 FOG 0348 0641 2.B7 2. q4 0451 0509 0.30 o. 05 !ONE Q.J 0602 0547 0616 o. qB o.qa 0551 0604 0.22 0.22
2. B7 o. 78 o. 54 0.22 o. 22 26 POG 0510 OS22 o. 20 o. 20 BONE BOBE t. 4 051S 0.20 0.20 1.
<O. 65 18.60 3. 24 2.12 0.42 PERCENT OF TOTAL HOUBS OP DAT& WITH VISIBILI'!I EQUAL TO OB LESS THAM 3 KB 1 K! o.s ~s FOG (F) o. 4 0.1 < 0.1 HAZE (HJ o.o . o.o o.o OBIZZLE (L) o.o o.o o.o BUH (R) o. 1 < 0.1 < o. 1 SNOW (S) 0.4 < o. 1 < 0.1 F&H o.o o.o o.o F&L o.o o.o o. 0 F&R 1. 3 0.2 o.o F&S o. 5 < 0.1 o.o TOTAL 2. 6 o.J 0.1

84 TABLE 7. lE v:ISIBILITY OBSTROCTION AT STATION POJA MAY 1977 INSTRUMENT IN OPERATION: 0000 1 MAY-2400 31 a u TOTAL HOURS OF OPERATION: 744.0 DAY OBSTR TYPE ONSET EHD

                                ~3 EPISODE DOUTION Kii ACCUr!ULATED TIME SJ XB    ONSET    END S1 Kl!

EnSODE DURATION ACCO MULlTED TUE S 1 KM OMS ET END S0. 5 KM EPISODE DOBATIOH lCCOM11LATED T.Il!E SO .. SKI! MIR VIS POB DAY TIME OP MIH VIS (EST) (BB) (HB) (EST). (HR) (HB) (EST) (BB) (HB) (KM) (EST) i FOG 0000 0133 1.55 o. 73 0000 0034 0-57 0.22 HONE* o. 7 0033

1. 55 o. 73 0.57 0.22 -,(

P/L 0541 0757 2.26 0653 0733 o. 67 0.67 0723 0727 0-06 0.06 0. 4 0726 J 2.26 o. 67 0. 67 o. 06 0.06 FOG 1045 1121 0.60 0. 60 NOBE NOHE 2.0. 1103* F/H 2020 2042 0.35 0. 35 NOBE, HORE

o. 96 o. 96 BAIN 0000 0341. 3.69 3.22 0150 0209 O.J1 0.31 0154 0156 0.02 o. 02 0.5. 0154 3-69 3. 22 o.*31 0.31 o. 02 0.02 F/B. 0019 0023 0.06 0. 06 NOBE 90Hll 2..0 0020 0.06 0.06 10 FOG. 0501 0558 0.96 0.56 NONE NOHE 0. 5 2123 FOG 2049 2202 1.23 o. 86 2054 2156 1. 04 0.19 2123 2123 o. 01 o. 01 POG 2326 2400 0.54 0. 35 NONE BONE
2. 72 1. 77 1- 04 0.19 o. 01 o. 01 11 FOG 0000 0050 0. 83. 0.29 HONE RONE 0.3 0613 FOG 0608 0633 o. 42 o. 42 0611 0618 0.11 o. 11 0612 0614 0.03. 0.03
o. 71 o. 11 0.11 0.03 0. 03 2358 2400 O. OJ 0.03 RONE NOHE 3. 0 2359 0.03 0.03 15 FOG 0000 0001 o. 02 o. 02 NOME NOHE 2.9 0000 0.02 0.02 17 FOG 0657 0707 0.17 0.17 0659 0702 0. 04 o. 04 0700 0700 o. 01 0.01 a. 3 0700 RAIN 0938 0948 0.18 0.18 NONE RONE ..
o. 36 0.36 D. 04 o. 04 o. o1 0.01 18 FOG 2139 2400 2 *.34 1. 54 2218 2246 o. 46 0.22 2222 2244 O.J8 O.OJ. 0.3 .. . __.}

2317 2359 0.69 0.29 2321 2331 0.17 o. 17 J 2.34 1. 54 1- 15 0. 51 o. s4 0.20 19 FOG 0000 0050 o. 84 0. 62 0011 0043 0. 54 0.11 0013 00*2 a. 48 o.o 1 0.2 2105 FOG FOG 0142 0444 0258 0518 1.27

o. 57 0.68
0. 57 ROHE NONE NORE NOBE

( FOG 2033 2227 1. 91

4. 58
1. 20
3. 08 2101 2203 1.03 1.56 O.JO
0. 41 2104 21j5 0.19 0.67 0.19
o. 20 20 FOG 0049 0431 J. 70 2. 46 0156 0309 1- 22 0.68 0228 0237 o. 15 o.1s. O.J 0229 POG 0502 0532 0.51 o. 51 NONE NOHE FOG 2335 2348 o. 21 0.21 NONE NOHE 3.18 1.22 0.68 o. 15 0.15 21 FOG 0345 0421 0. 59 0. 28 NONE SORE 0.2 2252 F/H FOG 0501 1956 0545 2325
o. 72 3.49
o. 72
2. 89 2224 2301 NORE
0. 61 0.36 2240 2255 NOSE 0.25 0.09

( 4.81 3. 69 0.61 o. 36 0. 25 0. 09 J 22 FOG 0018 0246 2.46 2- 10 0154 0206 o. 20 0.10 HONE 0.5 0205 F/B 0608 0629 0.35 0.14 NORE HONE 2.80 2. 23 0.20 0.10 23 FOG 0512 0557 0. 76 0.55 0515 0549 0.57 0.15 0516 0547 o. 52 0.05 0.2 0546 0:16 o. 55 0. 57 o. 15 0.52 0. 05 24 FOG FOG 0313 2136 0520 2400

2. 13 2.40
                                   *-53
2. 02
1. 74
3. 76 0344 2233 0511 2303
1. 45 0.49
1. 94 1.14
0. OB 1.22 0347 0509 1. 37 XOME 1.37
0. 76
o. 76
o. 2 0348

_j 25 POG 0000 0645 6. 75 6.05 0004 0110 1. 09 o. 52 0027 0032 o. 10 o. 10 o. 2 0031. 0153 0209 o. 26 0.06 HONE 0437 0457 O.J3 o. 21 0 442 0456 0.23 0.05

6. 75 6. 05 1. 69 o. 79 0. 32 o. 15 26 FOG 2232 2354 1. 37 . o. 31 2351 2351 o. 01 HONE a. a 2351
1. 37 0.31 o. o 1 o. 01 27 FOG 0015 0044 0.49 o. 1* NONE NONE 0.2 0 424 FOG 0125 0601 4.60 2.12 0226 0255 0.*7 o. 12 0227 0253 o. 44 0. 03 0332 0526 1. 90 0.82 0334 0425 o.a5 0.38
5. 09 2. 86 2.37 o. 93 1.29 o. 41 28 FOG 0309 0311 0.03 o. 03 NONE ROHE 2. 7 0310
o. o J o. 03

185

  • DAY 31 OBSTR T!PE RAIN RUN ONSET 0533 0642 END (ES't) 0601 0719
                          ~3 (RBI Kl!

EPISODZ DDRATIOK

o. Q6 0.62 ACCOl!OLATED TISE SJ Kft (BR) 0.*28
o. 44 ONSET 06U END (EST) 0712 TABLE 7. 1E S 1 Kft EPISODE DURATIOR (BR)

NORE

o. Q6 (CORT. I lCCO!DLATBD TUIE S1 !tft ONSET (HBJ 0.10 (EST) 0709 0710 SO. 5 K!

EPISODE E?iD. DUB.A.TI.OW (BR) BORE

o. 02 ACCO!OL!TED TI?IP: ~O.SKrl (BR)
o. 02 UH 'i'IS POB DU (Kft) 0.3 TIU OP UH VIS (EST) 0710
1. 08 o. 72 0.10 0.02 0.02
51. 47 38.31 lQ.52 6.79 5.*26 2.16 PERCE BT OF TOTAL HOU BS OP DATA llITB VISIBILITY EQUAL TO 08 LESS THAB 3 Kft 1 Kft O. 5 K!

FOG !Fl Q. 1 a.a o. 3 HAZE (HJ o.o o. 0 o. 0 DRIZZLE (LJ o.o o. 0 o.o BUN IHI 0.6 0.1 < o. 1 SHOii (SJ o.o o.o o.o P&H o. 1 o.o o.o F&L 0.3 0.1 < 0.1 F&R 0.1 o.o o. 0 P&S o.o o. 0 o.o TOTAL s.1 0.9 0.3

                                                                                                                                                                 -1
                                                                                                                                                                      )

186 TABLE 7. 2E VISIBILITY OBSTRUCTION AT STATION P07A MY 1977 INSTRUMENT n O?EBATION: 0000 1 MAY-1040 31 ~AY TOTAL HOURS OF OPERATION: 730. 7 SJ KM S1 K!'! S0. 5 Kft DAY OBSTB EPISODE ACCUMULATED EPISODE ACCUMULATED EPISODE ACCUMULATED MIR VIS TUE OF. TYPE ONSET END (EST) DURATION (HR) TIME .SJ K~ (HR) ONSET END (EST) DURAUOM (HR) TIME S 1 KM (H BJ ORS ET l!ND (EST) DURATION (HR) TIME S0.5K8 (HBJ FOB DAI (Kn) UN VIS (EST)

                                                                                                                                                                 ---i-
   ----------------------------------------------------------:9--------------------------------------------------------------------

2 F/t 0631 0916 2. 75 2. 75 0731 0747 0.27 o. 27 MONE a.a .. 0744 FOG F/H 1126 2152 11"5 2210

2. 75 0.32 0.31
2. 75 0.32
o. )1
o. 27 NONE NONE 0.27 NOME MONE 2.7 1128* *1
o. 6 2 o. 62 BAIR 0129 0403 2. 58 2. 5e 0215 033]

0247 0358

o. 55 0.41 0-55
o. 41 0216 0218 O. OJ NONE
0. OJ 0216 --i
                                                                                                                                                                     )
2. 58 2. 58 o. 95 o. 95 O.OJ o. 03
   ------------------------------------------------------------------------------------------------------~------------------------

F/H 0442 0529 o. 79 o. 79 0445 0525 o. 66 0.14 0446 0454 o. 13 o. 02 0.4

o. 79 o. 79 o. 66 o. 14 o. 13 o. 02 10 FOG 0447 0515 o. 47 0.26 0509 0510 o. 02 o. 02 NOBE 0.0 0509 0- 47 o. 26 o. 02 o. 02 11 FOG 0211 0227 0.27 o. 27 NONE NORE 1. 2 0220 FOG 0318 0400 a. 69 0.36 NONE NONE 0.96 Q.63 17  !'OG 0415 0426 0.18 o. i,a NONE NONE 1. 8 0420 0.18 0.18 19 FOG 0038 0325 2. 78 2. 68 C210 0215 o.oa o. 08 NONE 0.5 0214 POG 0503 0553 0.8) 0.83 RONE BONE J. 61 J. 51. o. 08 o. 08 22 F/R 0612 0623 0.20 o. 20 0614 0621 0.13 o. 04 NOHE 0.6 0621
o. 20 o. 20 o. 1J o. 04 24 FOG 0501 0516 o. 25 0-25 NORE HORE 2. 8 0505 0.25 0.25 25 FOG 0036 0616 5. 68 5.)7 RONE RONE. 1.2 0531
5. 68 5.37 27 FOG 0705 0707 o.o 4 o. 04 NONE NONE 2. 7 0706 0.04 0.04 31 RAIN 0609 0703 o. 90 o. 54 0612 0639 0.44 o. 0 4 NONE o. s 0613 I
o. 90 o. 54 o. 44 0.04
19. 04 17. 72 2. 54 1. 55 o. 16 o. 05 (

PERCENT OF TOTAL HOURS OP DATA WITH VISIBILITY EQUAL TO OB LESS THAN 1 KB 0.5 Kn FOG (F) 1. 4 < 0.1 o.o l HAZE (H) o. o o.o o. 0

o. 0 o.o I

D)UZZLE (L) o.o RAIN (B) 0.4 0.1 < 0.1 __ , SNOW (S) o. 0 o.o o. o F&H 0.1 < 0. 1 < o. 1 F&I. 0.4 < o. 1 o. o P&B < o. 1 < o. 1 o.o F&S o.o o.o o. 0 TOTAL 2. 4 o. 2 < o. 1

TABLE 7.1F 187 VISIBILITY OBSTROCTj;CH AT STATION P03A

                                                                              . JUNE 1977 INSTRUMENT IN OPERATION:       0000    1 JUH-1730 19 JON 2050 20 JU!l-2400 30 JUN TOTAL ACORS OF OPERATION:        692. 7
B Kft S1 KM ~O .. 5 Kl!

DAY 08STR EPISODE ACCO~ULATED EPISODE ACCOMOLATED EPISODE ACCO MO LATED !IH 1IS ~I!E OF ....... TTI?E ONSET END . DURAXION TJ:!'!E SJ Kl1 ONSET END

  • DCRATION TIP!E S1 KB ONSET . ENO DURATION TI!E SO.SK! POR DA! eu VIS (EST) (HR) (HR) (EST) (HR) (HR) (EST) (HR) (HB) (K") (EST)

FOG 2305 2355, o. 83 o. 45 NONE NORE 1. 0 2350 o.83 o. 45 FOG OOQ7 0107 o.33 o. 08 RONE NONE 0.1. 2123 FOG 2120 2228 1.13 o. 60 2123 21 "7 O.QO o.o3 HONE FOG 2303 2356 o.87 0.24 HONE HORE 2.33 0.92 o. 40 Q.03 F/R OQ46 0546 1.00 1. 00 HONE NONE 1~3 0521 F/R 0728 0805 a. 61 o. 61 ROHE RONE

1. 61 1. 61 F/R 0002 0038 0.59 0.15 NORE HONE 0.3 . 0203 F/R 0155 OHB 1.88 1. 88 0201 0337 1.59 1. 15 0203 0208 0.09 o. 09 0322 0334 0.20 o. 11 FOG 1. 35 1. 35 0504 05 27 o. 40 NOHE
3. 83 3.38 1.99 1.5* o. 30 0.21 FOG 2220 2232 o. 19 o. 19 SONE NONE 1.2 2331 -

FOG 2328 2335 Q.13 o. 13 NOHE NOHE 0.32 0.32 FOG 0103 0158 o. 91 o. 32 NOHE NOHE 1.5 0106

o. 91 Q.32 POG 0.05 o. 05 HONE RONE 2. 5 210 0.05 0.05 11 RAIN 0510 0605 . 0.9 1 o. 76 NOHE NOME 1. 6 0533
o. 9 l o. 76 12 P/R 0235 0501 2. 42 HONE NONE 1.5 060Q P/R 0549 0641 o. 86 NOHE HONE fOG 08!12 0925 o. 72 NOHE NONE 4.00 4.00
        '14  POG     0031   0204      1. 55           0. B 2    0113   .0149      0.61          o. 02                        NOHE                    o. 3   0358 P/B     0329   0544      2. 25           1. 62     0332   0 424      0.87          o. so      0332   QQ15       o. 70       o. 29 0518   0532       0.22          o. 22                        HORE 3.80            2. 5q                       1. 70         o. 74                        o. 70       0.29 15  FOG    0203   0217      o. 23           0.23                        RONE                                       ROHE                    1.1    0211 FOG     0 310  0402      0.87            O.B7                        NOHE                                       HORE
1. 10 1.10 16 FOG 0043 0248 2. OB o. 96 0045 0101 o. 21 0.02 RONE a.a 0101
2. 00 o. 96 o. 27 o. 02 17 RAIN 2120 2318 1. 96 o. 82 2127 2130 o. 05 o.os HCHE 0.5 2128
1. 96 o. B2 O. OS o. 05 21 POG 0109 0300 1.86 1.06 0 111 02 00 0.81 o. 11 HONE 0. 6 0159 POG 2149 2330 l. 68 o. 54 2312 2325 o. 21 o. 03 HONE
3. SS 1.60 1. 03 o. 14 22 FOG 0007 0045 o. 62 0.25 0038 0040 o. 03 o. 03 HONE 0.6 0039
o. 62 o. 25 o. 03 0.03 23 F/B 0531 0532 o. 01 HONE HONE 2. g 0532 0.01 0.01 H FOG 0016 0045 o. 4B o. 34 NONE NOHE 1. 7 0029 F/H 0821 0937 1.26 1.20 NONE HONE RAIN 2300 2334 o. 57 o. 32 NONE NOHE 2.30 l.B6 25 FOG 2220 2242 0.37 o. 22 NCNE NONE o. 7 2319 FOG 2313 2352 o. 65 O. JO 2319 2320 0.03 o. 03 NOHE
1. 0 2 o. 53 0.03 o. 03 26 FOG \ 0008 0124 1. 26 o. 57 0026 00 26 0.01 o. 01 NONE 0.0 0026 FOG 0354 OQ17 0.39 0.2B NONE NONE
1. 65 o. 85 0. 01 o. o 1 27 FOG 0143 0241 0.98 o.. ~s NONE NONE 1. 0 0207 28 FOG 0001 0049 o. 79 o. 4* NONE NOHE o. 5 1936 FOG 0126 0235 1.16 0.54 NONE NONE FOG 0321 0626 3. OB 2.26 NONE NOHE RAIN 1933 1943 o. 17 o. 17 1935 1937 O. OJ 0.03 NONE
5. 20 3. 42 O. OJ o. 03

188 TABLE 7.1F (CORT.) SJ K.!S .S 1 Kl'! :SO. S Kl'! DAY OBSTR EPISODE ACCU.l'IULAT!D EPISODE ACCUP!UI.AT ED EPISODE !CCU!ULATED !IS VIS TIBE OF TYeE ONSET EHD .DURATION Til'!E S3 Kl'I ONSET END DURATION Til'!E 'Sl Kl't ONSET END DURATION TUE ~O. 5Kft FOR DAY !IN VIS (EST) (HR) (HR) (EST) (RR) (HR) (EST) (HR) (HR) (KB) (EST) 29 FOG 0.21 0.27 2235 2235 o. 01 0.01 RORE 0.9 2235 0.21 o. 21 o. 01 o. 01 30 RAIN 0855 1010 1.26 o.a3 0903 0908 0.09 o. 09 0906 0907 o. 01 o. o 1 0906 RAIN 1056 1212 1. 27 o. 74 NONE NORE

2. 53 1.57 0.09 o. 09 o. 01 o. 01
41. 86 28.16 5.64 2. 73 1.01 0.51 PERCENT OP TOHL HOURS OP DATA WITH VISIBILITY EQUAL TO OR LESS THAN 3 KB , ~! O. 5 KB FOG (F) 2.1 o. 1 o.o HAZE (HI o. 0 o. 0 o.o DRIZZLE (L) o.o o. 0 o.o RAIN (RI o. 5 0.1 o. 1 SNOW (S) o.o o. 0 o. 0 F&H o. 4 0.1 o.,

P&L o.o o. 0 o. 0 F&B 1.0 a. 2 < 0.1 P&S o.o o.o o. o TOTAL 4.1 a. 4 0.1

                                                                                                                                                               *  ~- l
                                                                                                                                                                ._ _,I j

(

                                                                                                                                                                .l

189

  • DU OBSTR TYPE ONSET END (EST)

SJ EPISODE K~ DURATION (HR) INSTlW~EN'! ACCU:1ULA!ED TIHE SJ KM (HR) ONSET END (EST) TA:JLE 7.2F

                                                   'IISIEILIT'f OBSTRUCTION AT STATION P07A JONE 1977 I~{ OPE!i.\TION:

TOTAL HOURS OF onaaION: S 1 KM EPISODE OU!U.tION (HR) 0940 3 JU~l-2!&00 30 JUN TIME S 1 K!1 (HR) 662.3 ACCU l'!UL ATED ONSET END (EST)

                                                                                                              ~o. s Ka EPISODE DURATIO?I' (RR)

ACCU~ULUEO

                                                                                                                         '!II! E SO .. 5Kl"I (HR)
                                                                                                                                             "1N VIS POB DAY (Ka)

TI~! UN VIS (ES7) OP P/R 0456 0704 2. 1J 1. as 0500 OS03 o. OS O. OS 0501 OS02 o. 01 o.o 1 o. 3 0501

2. 13 1. as o. OS O. OS o. 0 1 o. 01 P/R 0228 OJ50 1.J7 1. 28 0332 0343 o. 18 o. 18 0335 0341 o. 11 o. 11 o. ~ 0335 FOG 0S29 0617 O. BO a.so NONE NONE 2.17 2. 09 0.18 o. 18 o. 11 o. 11 10 FOG 0511 0516 0.08 0. 08 NONE NONE 2. 0 OS12 0.08 o. cs 11 RAIN 0604 0632 o. 47 0.4 7 NONE RONE 2.5 0609 0.47 0.47 12 P/L 01S9 1143 9. 73 9.63 NONE NONE 1.0 0SJ5 9.73 9.63 POG 0012 0613 6.02 S. Bl 0038 020S 1. 45 o. 83 0040 0052 o. 20* o. 03 o. 2 0407 0126 0204 o. 63 o. 07 0246 OS40 . 2. 91 2. 04 OJS7 0449 o. 87 o. S7 I 6. 0 2 s. 81 4. 36 2. 87 1. 69 o. 67 15 FOG 0413 0524 1. 19 1.19 NONE NONE
1. 19 1.19 16 P/L 222J 2239 0.26 o. 26 NONE NONE 1.4 .2226 0.26 o. 26 OJ47 0612 2.41 2. 41 NONE o. J 2141 17 F/H NONE RAIN 2131 2228 o. 9S o. 9S 2139 2224 o. 7S 2140 2142 O. OJ o. 03
3. J6 3.36 o. 75 O. OJ O.OJ 1B RAIN 0019 0021 o. 04 NONE NONE 2. 9 0020 0.04 0.04 21 FOG 0030 0126 o. 94 o. 49 NONE NON.E o. 2 osse .

FOG 0213 0226 o. 21 0.21 NONE NONE FOG 0J07 0323 0.27 o. 20 NONE NONE FOG 0356 0416 o. 32 0.19 NONE NONE FOG OSJ7 0633 o. 94 o. 91 OS3B 0610 0.52 o. 25 OSS7 0607 o. 16 o; 16

2. 68 2- 01 o. S2 o. 25 o. 16 o. 16 23 P/H 0424 OS45 1.36 1 .36 NONE NONE 1. 9 0S01 1.J6 1.36 H F/R 0419 0830 4.18 4. 10 osos 060S o. 86 OSJS OS41 o. 10 o. 10 0.2 0540 RAIN 2J28 233 9 o. 18 o. 18 NONE
4. J7 4. 37 1.0 1 o. 86 o. 10 o. 10 25 POG OS22 0608 o. 76 o. 76 OS33 OSJS o. 04 NONE o. 9 OSH
o. 76 o. 76 o. 04 26 P/H 0S14 0520 o. o9 o. 09 NONE NONE 2. 7 OS 16
o. 09 o. 09 28 P/H OS 10 0722 2.21 2. 21 NON'E NONE o. s 20, 1 RAIN 094S 09S9 o. 23 0.23 NONE NONE RAIN 2001 2014 0.22 o. 22 2003 2011 o. 13 a.as NORE
2. 66 2. 66 0.13 o. OS JO RAIN 0910 092S o. 26 o. 26 0917 0921 o. 06 o. 06 0919 0920 o. 01 o. 0 1 0.3 0920 RAIN 1003 1026 O.J7 o. 27 NONE NONE RUN 1148 1202 o. 23 o. 19 NONE NONE
o. 86 o. 72 o. 06 o. 06 o. 01 JS. 23 36. 73 1. 1 o 4.58 2. 12 1. 10

190 TABLE 7. 2P (CONT.) PERCENT OP TOTAL ROUBS 01' DATA iUB VISIBILITY EQUAL TO O& LESS THAN 3 K8 1 KM 0.5 KB FOG (P) 1.6 o.5 o. 1 HAZE (B) D.O o.o o.o DRIZZLE (I.) o. 0 o. a o. 0 o.q 0.1 < o. 1 I BAIN (R) SNOW (S) o.o o.o a. o F&H 1.5 0.1 < o. 1 P&I. 1.5 o.o o. 0 P&B 0.5 < o. 1 < o. 1 P&S o.o 0.0 a. o TOTAL 5.5 0.7 o. 2 _I I j I

TABLE 7. lG 191 VISIBILITY OBSTRUCTION AT STATION POJA JULY 1977

                                                        !NSTRUaENT IN OPERATION: ODDO        1 .JUL-2*00 31 JUL TOTAL HOURS OF. OP!::BATION:      744.0
                                ~3 KM                                        ~ 1 K!I                                 SO. 5 Kl'I

~. DAY OBSTR EPlSOOF. ACCIJ !'IU l.1.T ED EPISODE ~CCUttULATED EPISODE ACCU l!ULATED !UN VIS TIM !i OP TYPE ONSET END DU8ATION T*I~H: :S3 Kl! ONSET ENO DURATION TIHE S1 KM ONSET END DURATION TI!E SO-SK! FOR DAI !IN VIS (EST) (HH) (RB) (EST) (HR) (HB) (EST) (HR) (HR) (U) (EST) FOG o 101 0136 o_s0 0.36 NONE NONE 0.3 2316 FOG 0248 0608 3- J4 1. *5 0*2s o*52 o. ** o_ 05 NONE FOG 2155 2*00 2. 08 1. *2 2239 23*6 1.12 o. 32 22*1 2317 o. 6D o. 13 6.00 J_ 23 1. 56 o. 37 o. 60 0- 13 FOG 0000 0208 2. 1

  • 1. *O 0012 0112 0035 0203 0.38 0-86
o. 08
o. 12 0201 0202 NONE 0- 01 0-01 D-* 0201 FOG 0*21 o*51 o. 51 0.32 NONE NONE
2. 64 1- 72 1. 24 0-20 0-01 0.01 FOG OJ 15 0334 o. 31 o. 22 NOKE NONE a.a 0421 FOG 0417 0*28 o. 19 o. 19 0421 0*22 0.02 o. 02 NOHE
o. 50 0-40 o. 0 2 o. 02 PIH 0411 0423 o. 20 o. 09 NONE NONE 1.2 0540 F/H 0 538. 0546 0-14 o. 1* NONE NONE 0- J.j o. 23 9 F/H 0400 0602 2.. o* 1-27 0*07 0*22 o. 25 0-12 0*09 0*21 o. 21 o. 01. o. 3 0505 0503 0557 0.89 o. 08 0 504 0506 o_ 02 0.02
2. O* 1. 27 1.14 o. 20 o. 23 o. 03 12 FOG 0142 0156 0.22 o. 22 NONE NONE o. 7 1040 F/B 1024 1047 o. 38 0.38 o. 06 0-06 NONE
o. 60 o. 60 0- 06 o. 06
  -----------------------------------------------------------:-----*---------------------------------------------------------------~-

13 POG 0119 0437 3.30 1. 64 0154 0252 0.97 o. 19 NOHE o. 5 2144 POG 2Q38 2351 3. 22 1. 43 2045 2107 o. 37 o. 02 . l'i'OHE 2142 2145 o.os o. 0 5 son 6- 52 3. 07 1. JS 0.26 14 FOG 0004 00 13 o. 15 0.15 NONE ~ONE 1. 1 000& FOG 2219 2239 0.32 o. 32 NOHE NONE O. H O. 47 17 BAIR 0254 0314 o. 34 o. 34 0300 0304 0. 07 o. 07 NONE o.s OJ01 FOG 2021 2151 1.*9 1. 49 NONE NONE FOG 2324 2348 o. 40 0.40 NOHE NONE

2. 23 2. 23 o. 07 0.07 18 FOG 0010 0227 2.28 2. 28 NONE NONE 1. 0 0520 RAIN 0452 05 28 o. 59 0.36 NONE NONE 21 FOG 2103 2153 0. 84 o. 64 2128 21Q5 0.29 0.29 2134 2143 o. 16 o. 16. 0.4 2143
o. 84 o. 64 0.29 0.29 o. 16 0.16 22 POG 2049 2313 2.* 1 1. 56 2121 2308 1. 79 o. 43 2121 2256 1. 57 o. 15 o. 2 2147
2. 41 1. 56 1. 79 o. 43 1.57 o. 15 23 FOG 0334 0556 2.36 G459 0503 o. 06 o. 06 0501 0502 o. 01 o. 0 1 o. 4 0502
i. 36 1. JO o. 06 o. 06 o. 01 o. 0, 24 POG 0328 0357 0. 48 0.48 NOHE NORE o. 5 1JQ4 F/R 1131 1529 3.96 J. 64 1342 . 1346 0.11 o. 11 NONE
4. *S 4. 32 o. 11 o. 11 25 F /H 0049 0211 1. 37 1.37 NONE NONE 2.5 0200 F/H 0350 0441 o. 84 o. 84 NONE NONE 2.21 2.21 26 FOG 2034 2036 O. OJ o. 03 NONE NONE 2. 7 2035 Q.03 0.03 27 FOG 2213 2222 o. 14 o. 14 NOHE NONE 1. 1 2216 0.14 0.14 28 F/H 2245 2341 o. 93 o. 76 NONE NONE 2.3 2321 o.93 o. 76 29 HAZE 0523 0618 0.91 o. 37 NONE NONE o. 1 2202 RAIN 0835 1003 1. 47 1. 47 0837 0854 o. 28 o. 26 0837 0849 o. 19 o. 06 F /H 1944 2400 4.26 ii .. 26 2016 2~00 3. 74 3. 74 2016 2400 3. 70 3 .. J5
6. 6 5 6. 11 4. 02 4. 02 J. 89 3. 41 30 FOG 0000 0832 8.SJ 8. 53 0000 0620 8. 13 0000 0543 s. 72 5. 37 0.1 0445 0640 0745 1. 09 1. 09 POG . 2039 2113 o. 57 o. 57 NONE 1\0NE
9. 11 9. 11 a. 3* 6. 13 6. 01 6. 46 31 RAIN 0709 0712 o. 05 o. 05 NCNE NONE 2. 2 0710 0.05 o.os
53. 38 42. OB 20. 07 14 *. 21 13.26 10. 3E

192 ( i TABLE 7. JG (CORT.) PERCENT OF TOTAL BOOBS OP DAU VITB VISIBILITY EQUlL TO OB LESS TBll.B l!OG (F) 3 ~! J. 6 1 ~! 1.J

o. 5 ltll
o. 9 l

HAZE (H) 0 *. 1 o.o o.o DRIZZLE (L) o.o o.o o.o BAIH (RJ 0.3 < 0.1 < o. 1 SHOll (SJ o.o o. 0 o.o P&H 1.2 0.5 o.s F&L o.o o.o o.o P&B o. 6 0.1 o. 0 *1 P&S o.o o. 0 o. 0 I

                                                                              )

TO:rAL 5. 7 1.9 1.~

  • _l I
                                                                          * .J I

193

  • DAI OBSTR TYPE ORSET ENO SJ KH EPISODE DO BAT ION ACCO SU LAT EU Til!E S3 KM ONSET END TABLE 7.2G VlSIBIL.ITY OBS'l'BaCTI.OB AT STATIOH P07l INSTBUSENT IS oeEBATION:

JULY 1977 S1 KN EPISODE DURATION 0000 1 JUL-21SO 29 JUL 222S 29 JUL-22SS 29 JUL 06SS 30 JUL-2400 31 JUL TOTAL BOOBS OP OPEBATION: ACCUNULUED. T.IrtE 'S1 73S.4 Krt ONSET END S0.5 KN EPISODE DURATIOB ACCUSULATBD . 8IB VIS TI8B SO. SU 1'08 DAY TI!S OP NU VIS {EST) {HR) . (HR) (EST) (HR) (HB) (EST) (RR) {BB) {K8) (BST) 3 RAIR 1353 1409 0.26 o. 26 NORE BOSB 1.8 1356

  • 0.26 0.26 POG 01Q2 0208 0.43 o. 43 NONE NONE o. q 0751 POG 0733 0911 1. 63 o. 49 0751 0752 o. 03 0.03 0751 07S2 o. 01 0.01 POG 1736 17Q6 0.17 o. 17 NOSE NONE
2. 23 *1.10 0.03 0.03 o. 01 o.o 1 l'OG 0339 0750 4. 18 4.18 0348 0130 3. 69 3. 69 0400 06 44 2. 74* 0.1 0405 Q. 18 3. 69 3. 69 2.14 POG 0310 0505 1.91 1. 79 0319 03SO o. 51 0.14 0321 0323 o. 03 *a.OJ 0.2 0323 1.91 1. 79 o. 51 0.14 o. 03 0.03 12 ~/B 10QO 1059 0.31 o. 31 1051 1 OS7 0.10 o. 10 10S4 1056 o. oJ O. OJ 0.3 1056
a. 31 0.31 o. 10 o. 10 o. 03 o. 03 0113 012Q 0.18 o. 18 BONE 1.2 0118 0.18 0.18 17 RAIN 0322 0326 a. 06 o. 06 NOHE RONE 2. 5 0324
o. 06 o. 06 18 POG o 539 0546 0.12 o. 12 NONE ROBB '0542 0.12 0.12 2Q l'/B 121Q 1313 0.98 o. 68 NORE NONE 1.1 152Q P/B 1403 1421 0.30 0.30 NORE RONE P/B 14S3 1S29 0.60 0.19 NONE BOMB
1. 88 1.17 29 R!IR 0859 0912 0.21 o. 21 NONE RONE 0.3 2142 P/9 2025 2H8 1.38 1.38 2139 2148
  • 0.16 u. 16 2141 2148 0.12 0.12 P/B 2224 225Q a.so a.so 2224 22S4 o. so 0.34 222Q 2254 o. 50 0.13 2.10 2. 10 o. 66 o. so o. 62 0.2Q 30 l'OG 0654 0836 1. 70 1. 70 0654 0739 o. 7q o. 7q 0654 06S8 o. 07 0.07 o. 2 065~
1. 70 1. 70 o. 7q 0. 74 o. 07 0.07
 --------------------------------.--------------------------------------------:-----------------------------------------------------~-

lij. 9q 12. 98 s. 73 s. 20 3.50 3.12 PERCENT OF TOTAL BOOBS OP DATA iITH VISIBILITI EQUAL TO oa LESS THAN J K8 1 K! 0.5 K~ POG (F) 1. 2 o. 6 HAZE {H) o.o o.o o.o DBIZZLE {L) o. 0 o.o o. 0 BAIN {R) 0.1 o.o o.o SHOii {S) o. 0 o. 0 o. 0 P&H 0.3 0.1 < 0.1 P&L o.o o.o o. 0 F&R o-. 2 < 0.1 < 0.1

                                    ,F&S                             o.o                     o.o                   o.o TOTAL                           1.8                     o. 7                  o. q

194 TABLE 7- lH VISIBILITY OBSTROCTION AT STATION P031 AOGUST 1977 INSTBOHEMT IN O?ERATION: 0000 1 AOG-122S 27 AOG 1130 30 AOG-2400 31 AOG TOTAL HOOBS OP OPERATION: 672.9 SJ Kl! :S:1 KB ~o.5 Ka DU OBSTR EPISODE ACCU MOLA TED EPISODE ACCOBOLATED EPISODE ACCOHOLATED HIH VIS TISH OP TYPE ONSET END DORAT.ION Til'!E SJ Kl! ONSET END DURATION TIME ~1 KH ONSET END DURATION Tl! E ~O. SU POB DU HIN VIS (EST) (BB) (RB) (EST) (BB) (HB) (EST) (HR) (BB) (KS) (EST)

   ----------------------------------------------------------------------------------------------------~------------------:.------------
     .1  FOG     2115   2250       l.S9           o. 69                        0.26             a. as                        HORE                      0.5     2244
1. 59 o. 69 o. 26 0.05 POG 0020 0024 o. 07 o. 07 NONE HORE 1.9 0022 0.01 0.07 POG 0121 0246 1.40 0.84 014B 0234 o. 76 a. 20 NOHE 0.3 0417
o. 92 o. 74 o. 42 a. 24 l

FOG 0338 0433 0402 0427 0.32 0404 041B 0.04 POG 053S 0619 o. 73 o. 6B 0541 0610 0.47 o. 17 0543 0609 o. 43 0.03 P/B 2040 2117 0.62 o. 62 NOBE MORE 3.67 2- B8 1. 65 0.69 o. 67 0.07 RUN 2007 2010 0.06 o. 06 MONE NONE 2009 l RAIN 204S 2109 o. 40 0.09 HORE NONE BAlN 2217 2227 0.1B o. 18 NOHE NONE 0.6 4.

   -~--------------------------------------;..

0.33 _____________________________ :,. __________________________________________ -:----.- . ---------.- RAill 1412 1422 a. 11 a.OS NONE NOHE 0.3 1S44 RAIN 1527 15S4 0.4S a. 45 1532 1S47 0.25 a. 11 1S33 1545 0.20 o.os 0.62 a. so 0.2S o. 17 a. 20 a.as

   ----------------------------------------------------------------------------------------':""------------------------------~---------.-

P/B 211S 2400 2. 76 2. 76 2352 2400 a. 13 0.13 2JSS 23S6 0.02 0.02 a. 4- 23S6

2. 76 2. 76 o. 13 0.13 0.02 0.02 P/H 0000 OS43 5. 72 5.30 0000 0044 o. 73 o. 64 0003 QOJj 0- 49 o. 01 2323 a 118 0131 0.21 0.07 NOHB 0207 OJOB 1. 02 O.JO NOHE P/B 1.03 1. 01 2315 23Q8 a.SS o. 24 2323. 232S 0.04 a. 04
6. 7 4 6.31 2. S1 1. 25 O.S2 a.as J

P/R 0000 OOQ8 O. BO O.BO NONE NOHE o.s. 2325 P/R 0552 0612 a. 34 a. 24 NOHH HOBB POG 2023 2039 0.27 0.17 NONE ROHE

a. 66 a. 66
                                                                                                                                                                       *J l'OG     2118   2158                                                  NOHE                                          NOHE FOG      2301   2QOO      0.98            a. 90    2309. 2400         0.85             0.1S                         BOU 3.04            2. 77                       o.8s             0.15 9 POG      0000   ooss      0.92            0.51                         BONE                                         NONE                      0-5     OS40 FOG     0139   0453      3.23            2.13      0347   0420        0.56            o. 10                       NOBE POG     0527   0650       1.37           0.68      OS31   0542        a. 1B           0.18       0532    OS40      a. 13          0.01
5. 53 3.32 0.74 0.27 a. 13 0.01
                                                                                                                                                                           ,I
   --~----------------------------------------------------------------------------------------------------------------:--------

10 POG 0107 0208 1.02 0.90 NOHE HONE 0.4 21S1 P/R 0404 OUJ a. 49 o. 39 NOSE NOHE __ I P/R OS36 0547 a. 1a 0.18 HONE HONE P/B 2027 2328 3. 02 2.75 2047 2230 1.71 a. 67 20SO 2101 Q.19 0.02 2150 2152 a. 03 a.OJ

4. 70 4. 23 1. 71 a. 67 0.22 a. OS 11 F/R BUB
               ---------------------------------------------------------~--------------------------------------------------------.--

0000 07S8 0057 OBIS 0.9 4

o. 28
a. 66 0.01 NONE NORE NOBE HOSE 2.2 0020
                                                                                                                                                                         .l 1.22           o.73 12"  P/B     OS31   0624       a.as           a. 34                        NONE                                         NOHE                       o.9     2207 FOG     21S9   2JQ8       1.81           a. 63     2207   2207        a. a 1           o. 01                        NOHE
2. 69 o. 98 a. 01 a. 01 13 FOG 0021 0102 0.69 0.47 RONE ROME 1.0 0328 FOG 0324 0332 a. 12 0.12 NONE NOBE P/R 2014 2029 0.25 0.2S NONE ROBE P/H 2113 2138 a. 41 0.41 NONE NONE
1. 46 1.25
    -~--------------------------------------------------------------------------------------------------------------------~------------

14 POG 0010 001S 0.01 a. 01 NONE HONE 1.7 0012 0.01 0.01 15 POG 0329 0457 1. 46 o.s 1 0404 0405 o.o 1 a. 01 HORE o*. 9 0405-

1. 46 a. 51 o. 01 *a. 01 16 l'/R 0750 0807 a. 29 a. 16 NOHE BOBE 1. 6 0801 0.29 0.16 17 POG 2223 2JQ8 I. 41 0.46 NOHE NONE 1.1 2344.
1. 41 0.46 18 POG 0013 0104 a. 85 o. 40 0040 0041 a. 02 0.02 MONE a. 1 OOQO POG 22Q9 2357 1.14 a. 16 HONE HONE
1. 99 a. 56 a. a 2 a. 02 20 POG 0230 0650 4.34 J. 00 0313 0647 J. 57 1.12 0415 0436 0.3S Q.10 0.2 OSS4 oss2 0616 o.39 0.16 4.34 3. 00 3.57 1. 12 o.H a. 26

195

  • DAY 21 OBSTB TYPE P/L F/R ONSET 0306 1218 END (EST) 1019 1245 SJ KH EPISODE DUBATIOH (HR)
7. 23 0.45
                              *1. 68 ACCU!"IULATEO Til'!E ::SJ (HR)

Kl'!

s. 92
o. 13
6. 05 ONSET 0325 (EST)

END 0335 TABLE 7. 1H S1 K:t EPISODE DURATION (RR)

o. 18 ROHE
o. 18 (CORT.)

ACCO"-ULATED TI?'IE S1 (HR) 0.18

o. 18 Kl! OHSE'l' 0327 END (EST)

Q330

                                                                                                                     ~0.5 EPISODE
                                                                                                                             !t.!!

DOBATIOH (RR)

o. 05 NORE D. 05 ACCUl'!OLATED TUE SO. SK!

(HB)

o. 05
o. 0 5
                                                                                                                                                 !IN VIS POB DAY (K!)

0.3 TISE OP

                                                                                                                                                          !UH VIS (EST) 0328 22  FOG    0427   06JJ     2.11              1. 80     0443     0626      1. 73           o. 72     0451    0502       D. 19           0.07       o. 4   0502
i. 11 1. 80 1. 73 0.72 o. 19 o. 01 23 BAIN 1940 1942 NONE NONE 2.5 1941 24 POG 0145 0234 0.82 0.82 0149 0225 o. 60 o. 19 HOME 0.2 0508 FOG 0308 0731 4. 38 4. 38 0319 0119 4.00 3. 69 0343 0711 3. 47 2.89
s. 20 s. 20 4. 60 3. 89 3. 47 2. 89 25 FOG 0005 0058 o. 88 0.28 NOBE NORE 1. 4 0027 FOG 0 U6 0505 0.47 o. 22 NOR! RONB 1.36 o. 50 26 RAIH 1818 1828 o. 17 0.17 NONE NORE 1.6 1823 0.17 0.17 27 FOG 0250 0251 o. 02 o. 02 NOBE HORE 2.8 0250
o. 02 0.02 30 FOG 1953 2149 1.94 1.3Q 2018 2119 1.02 o. 25 2115 2111* D.02 0.02 o. 4 2116 FOG 2241 2348 1. 10 0.67 NONE NOBE 3.()4 2. 02 1. 02 0.25 o. 02 0.02 31 POG 0006 0045 0. 6q 0.32 NONE !ONE 0.1 18Q8 P/H 1838 1922 0.1.3 o. 73 1841 1856 0.24 o. 15 HONE P/H 2056 2119 0.39 0.39 NONE NORE
1. 75 1. *3 0.24 o. 15
e 65.69 48.80 19.48 . 9.12 6. 23 3. 54 PERCE BT OF TOTAL HOURS OF DATA WITB VISIBILITY EQUAL TO OR LESS TRAN 3 KM 1 K! 0.5 K!

FOG (FJ 3. 7 1.1 o. s HAZE (HI o.o o.o o. 0 DRIZZLE (L) o.o ' o. 0 o. 0 RUH (BJ o. 2 < 0.1 < o. 1 SHOil (S) o.o o.o o. 0 F&H 2. 1 0.3 < o. 1 P&L 0.9 < 0.1 < 0.1 F&B 0.4 o. 1 < o. 1 F&S o.o o.o o. 0 TOTAL 7.3 1. 4 o.s

l HBLE 7. 2H VISIDILI'IY OBSTRUCTION AT STATION ?07 A

                                                                           ~UGOST     1977
                                                !NS'l'RUi1ENT IN OPERATION:          0000     1 .\DG-2400       31 AUG IOT!L HOURS OF OPEBATION:              74Q. .. 0
$3 K!"l S 1 K11 S.O .. 5 Kl'I OBSTR EPISODE lCCOHOLATED El?ISOOE ACCrJl'HJLATEO EPISODE ACCU~OI.ATED ~IN VIS TJ:H E QF TYPE ONSET END DUBA1'10N TIH.E S3 Kl1 ONSBT END DUR!TlO~ TIME $1 Kft ONSET END DURATION TI.HE SO.SK!t FOR DAY HIN VIS (EST) (HB) (HR) (ES'rJ (HR) (HR) (EST) (HR) (KR) (K~) (EST)

POG 0433 0441 O.H o. 14 NONE NONE 2*. 9 0436

o. 14 o. 14 RAIN 2226 2241 o. 24 o. 24 JONE NONE 2. 7 2229 0.24 0.24 RAIN P/L 1555 2137 1612 2241
o. 28
1. 07 1.35 0.28 1.07
1. 35 1601 1606 o.

NONE 12

o. 12
o. 12
o. 12 1603 1607 o. 07 NONE
o. 07 0.01 0.07 0.3 1604 l

F/B 0222 0250 o. 47 o. 47 NONE NONE 1. 3 2052

                                                                                                                                                                         ]

P/H 0437 0646 2. 15 2. 15 NONE HONE P/R 2045 2107 0.36 0- 36 NONE NONE P/H 2337 2400 0.38 o. 38 NONE NONE 3.36 3.36 F/H 0007 0802 7.91 7. 91 0214 02'52 o. 64 o. 51 NONE o. 7 2031 P/B 2022 2034 o. 20 o. 20 2025 2031 o. 10 0.10 NONE 8.11 0. 11 0- 74 o. 61 P/R 0055 0316 2.34 2. 29 0300 0302 o. 03 o. 03 NONE o. 5 0301 F/R 0516 0642 1. 42 1. 16 NONE NONE FOG 2305 2~00 0.91 o. 53 NONE NONE FOG 0000 0704

4. 68
7. 07
3. 98 6.66 0054 0100 0.03
o. 10
o. 03 0.10 0058 0056 o. 01 o. 01 o. 5 0058 J
7. 07 6. 68 o. 10 o. 10 o. 0 l 0.01 10 F/B 0055 0241 1. 76 1. 76 llONE NONE 0.9 0406 P/B 0344 0555 2. 18 2. 04 0446 0447 o. 02 o. 02 NOHE J. 94 3. 79 0.02 o. 02 11 P/H 0006 0106 1.00 o. 73 NONE NONE O. l 0036 F/H 0217 0646 4. 49 4. 24 0306 0530 2.40 1. 79 0411 0526 1 .2* o. 91 FOG 2035 2051 o. 26 0.26 NONE NOHE
5. 76 5. 24 2. 00 1. 79 1.24 0.91 12 P/H 0331 0654 3.39 3. 27 0405 0541 1. 60 0.67 Q053 0521 o. 47 0.16 o. 1 0453 J.39 1. 60 0.67 o. 16 13 RAIN 2001 2040 0.64 0.64 0.64
o. 64 NONE NONE 2. 5 2032 J

17 FOG 0600 0610 o. 16 o. 16 NONE NONE 2. 7 0602 0.16 0.16 20 POG 0152 0417 NONE NONE 1. 4 2.43 1.44 21 F/L 0346 1107 7.36 7.36 NONE NORE 0.6 2220 I F/R 1226 1340 1. 24 1. 24 NONE NONE FOG POG 2158 2321 2227 2400

o. 48 0.64
o. 48 0.64 2216 2221 o. 06 NONE
o. 06 NONE NONE J.
9. 72 9.72 0.06 0.06 22 FOG 0000 0824 8. 40 0. 01 0030 0211 1. 69 1.24 0119 0208 o. 82 0.26 0.1 0737 0305 0815 5.17 4. 63 0313 0406 0.69 o. 42 Oo36 0810 J. 53 2. 70 6.07 6. 86 5. 67 5. 24 3. 37 0250 0351 1. 02 1. 02 0306 0336 o. 49 o. 40 NONE o. 3 0525 -

0424 0727 3. 05 2. 95 0429 0722 2. 86 2.50 0431 0615 1. 73 o. 96

3. 97 3. 36 2. 89 1. 73 o. 96 26 RAIN 1841 1857 o. 26 o. 26 1646 1648 0.05 o. 05 RONE 0.6 1846 0.26 o. 26 o. 05 o. 0 5 28 P /R 2 059 2223 1. 40 o. 87 2102 2203 1. 0 1 o. 29 2110 2157 o. 78 0.05 o. 3 2126
1. 40 o. 87 1. 0 1 o. 29 o. 76 o. 05 29 POG 2306 2311 o. 09 0.09 NONE NOHE 0.9 2309 0.09 0.09 30 FOG 0036 0123 o. 79 o. 19 NONE NONE 1. 3 0333 POG 0250 033 6 o. 76 o. 49 NONE NONE 1.55 0.68
66. 76 62.06 16.36 12. 51 9. 55 5. 53

197

  • 3 TABLE 7. 2H K~

(COST.) eERCENT OF TOTAL BOOBS OF DATA WITB VISIBILITY EQUAL TO OB LESS THAH I Ke 0.5 Kn FOG (Fl 3.1 1.2 o. 6 HAZE (B) o.o o.o D. 0 r DRIZZLE (L) o.o o.o o. 0 RAIH (B) 0.2 o. 1 < *o. 1 SHOW (S) o.o o.o o. 0 F&H 2.6 o. q 0.1 F&L 1.1 o. a o. a F&B 1.3 a.1 < a. I F&S a.a o. a a.o TOTAL 8.3 1. 7 o. 7

198 TABLE 7. U VISIBILITY OBSTRUCTION AT STATION P03A SEPTE11BER 197'1 INSTBO*ENT IN OPERATIOB: 0000 1 SEP-2400 JO SEP TOTAL BOORS OF OPERArION: 720-0 SJ KM S 1 Kl'I so. 5 K" DAI OBSTR EPISODE ACCUMULATED EPISODE ACCUPICJLAT ED EPISODE ACCU"ULATED "IN VIS TJ:ftE OP TYPE ONSET END DDBAUON TIHE SJ Ktt ONSET END DaRATION TI!!.E :S1 K~ ONSET !ND DUBAT.IO!f TIHE :SO .. S!lt:ll POB DAI SIR YIS (EST) (RR) (HR) (EST) (BR) (HR) (EST) (RR) (HR) (Kft) (!ST) F/R 0102 0110 0.14 o. 14 0105 0106 a. 02 0.02 RONE 0.6 0105 F/R OJ56 0455 0.99 o. 75 NONE NONE F/R 1016 1049 0.55 o. 1B NONE NONE --, l F/R 1746 1849 1. 05 o. 86 NOHE NOSE

2. 74 1. 93 FOG 0222 0301 0.64 o. 16 HONE NOBE o.5 1109 FOG 0335 0006 o. 52 o. 16 NONE NOBE l

FOG 0458 0607 1.. 116 1. 14 NOHE NOSE F/R 092J 09J6 o. 23 0.23 NONE NOSE F/R 1057 1120 0.38 o. 38 11 co , 111 0.18 o. 06 HONE

2. 91 2. 07 0.18 0. 06
                                                                                                                                                                           *1 FOG     2040    2115      0.59           0.17                       NOHE                                          NORE   .

0.59 0.17 FOG 0647 0938 2. 85 2.21 0700 0746 o. 77 o. 77 070J 0740 o. 61 o. 61 0.2 0716 0850 0911 O.J4 o. J4 RONE FOG 2111 2356 2. 74 2.16 2112 2J5J 2.67 0.9J NOBE

5. 59 4. J8 J. 78 2.04 a. 61 0.61 FOG 000. 0803 7.98 6. 68 0012 0108 D.94 o. 30 0107 0107 o. 01 o. 01 0.1 0107 0155 0755 6. 00 5. 42 0237 ans 5. 18 4.67 FOG. 2025 2354 3.48 2058 2J44 2. 77 1. lJ 210J 2214 1.19 0.35 2252 2304 0.19 a.11 7 FOG FOG F/H 0000 0301 0550 0049 0316 0723 11.47 0.82
o. 25 1.55
o. 65 0.22
1. 34 0558 064J
9. 71 NONE NOBE
o. 76 6.85
o. 72 a 600 0628 6.57 NOBE ROHE 0.47 5.13
o. 47
o. 2 0624 l 2.63 2. 20 o. 76 o. 72 0.47 a. 47 FOG 0103 0231 1.47 1. 07 0113 0142 0.47 o. 47 0117 0136 0.32 0.22 0.2 0132 FOG 0307 0503 1.94 1. 94 0401 0432 a.SJ 0.40 HONE P/R 0706 0810 1.07 1.07 NONE NONE F/& 1940 2H5
  • 2.07 1. 22 2013 2114 1.01 a. 11 2014 2049 0.58 a.OJ 6.55 5. 30 2.00 1. OJ o. 90 o. 2s 10 FOG 1948 2151 2.05 o. 68 2034 2 048 o. 23 o. 02 HORE o. 7 2034 II
                                                                                                                                                                           .. _/
2. 0 5 o. 68 o. 2J o. 02 11 FOG 0001 0049 o. 80 0.32 NOBE NORE 0.5 2020 FOG 1934 2117 1. 71 0.98 2020 2112 0.88 o. 19 BONE 2-51 1. 30 0.88 o. 19 I
                                                                                                                                                                              .}

12 F/B 1810 19H 1-40 o. 76 NORE NOHE 1.2 1902 F/R 2050 2218 1. 46 o.59 NORE SOllB 2.87 1.35 13 F/R 0015 0830 8.24 6. 47 NONE HORE a.1 1117 F/R 0915 OH6 o. 52 0.31 NORE ROHE F/R 1102 1350 2.80 o. 77 1117 1119 0.04 o. 04 NOHE

11. 56 7.55 o. 04 0.04 14 FOG 0219 0758 5.66 5.H D22E 0636 4.16 1.JJ 0228 0324 o. 94 o. 01 0.3 0228 I

FOG 1951 2101 1.17 o. 59 2015 2029 0.23 0.07 NOHE

                                                                                                                                                                           .J 6.BJ           5. 9J                      4. J9           1. 41                        o. 94          o. 07 15   P/B     1032    1047      o. 24          o. 06                      NONE                                          BORE                             1.4   1129 F/R     1125    1132      0.12           o. 10                      NONE                                         NOHl!
o. 36 o. 15 16 F/H 2055 2239 1.H o. 86 NONE NONE 2J14 F/B 2313 2400 o. 77 0.19 RONE NOHE 2.51 1.06 17 F/H 0007 0255 2. 79 2. 1 e ROYE HONE 063J F/R 0326 0727 4- 01 J. iq 0624 0655 o. 53 o. 42 0627 0638 0.19 o. 19 F/R 1131 1306 1.58 1. 58 BOSE ROHE F/B 2141 2242 1.02 o. 83 2200 2211 o. 11 0.11 HOSE
9. 40 7. 72 o. 70 o. 53 0.19 o. 19 18 F/R 0352 0551 1. 98 1. 59 RONE NOHE D.1 2018 FOG 1854 2247 J.89 J. 56 1914 2140 2. 43 2.11 1934 2134 1~ 99 1. 70
5. 87 5. 15 2. 43 2.11 1. 99 1. 70 19 F/R 0333 0517 1. 74 1. 74 HONB NORE 2.0 0816 F/R .. 0610 0622 0.19 0.19 NONE NOBE F/R 0653 0704 o. 18 0.18 NONE NONE F/H 0812 0829 0.28 o. 28 HONE NONE
2. 3 8 2. 38 23 FOG 0419 0736 3.29 J. 17 0436 0724 2.80 i .. s~ 0529 0635 1.10 o. 41 0.2 a 55J 3.29 J. 17 2. SD 1. 51 1. 10 o. 41

199 TADLE 7. I I (CONT.)

SJ KH S 1 K?I SO. S Ktt DAY OBSTR EPISOD& .l.CCTJ!'!'ULATED EPISODP. ACCTl!'tOLA'IED EPISODE ACCU~ULATED l'IIN VIS TleE OF TYPE ONSET END DU BAT.ION TIHE SJ K~ ONSET ENO DURATION TIHE :51 KP! ONSET END DURATION TI"E :SO .. SK~ PCR DAY HN VIS (EST) (HR) (HR) (EST) (HB) (HR) (EST) (HR) (HB) (Ke) (EST) 24 P/R 0116 0705 S.81 5. 25 0506 0608 1.0 4 o. 48 OS47 OSSO a.as . o.os 0-2 0548 FOG 2020 2227 2.10 1.00 20S4 214J 0.82 o. 10 NONE 7.9 1 6.2S 1.86 o. S9 o. os o.o s 25 FOG 0012 01SS 1.72 1.. 25 OC15 0143 o. 42 0026 0039 o. 21 0.05 0.4 0039 1.12 1. 2S o. 42 o. 21 0.05 26 FOG 0120 0123 o. 0 s a.as NONE NONE 2. 7 0122 f '

a.as a.as 28 FOG 19S3 222S 2. SJ 1. 04 19S6 2015 0.32 a.as NONE o.s 201S 2136 2206 o. 49 o. 07 NONE

2. SJ 1. 04 o. 80 0.11 29 FOG 0042 0048' o. 09 0. 09 , NONE NONE 1.5
o. 09 o. 09 30 P/R 2131 2132 0.02 NONE NONE 2. 6 2131 0.02 0.02
70. 33 17. 65 13. 04 8. 93 PERCE UT OF 'IOTAL BOU RS OF DATA 'ilITR VISIBILITY EQUAL TO OB LESS THAN 3 K~ 1 K~ O. S K~

POG (FJ s.1 2.2 1.1 HAZE (H) o.o o. 0 o. 0 DRIZZLE (L) o.o o. 0 o. 0 RAIN (B) 0 .o o.o o. 0 SNOW (S) o.o o.o o.o F&H 1.8 o. 2 o. 1 F&L o.o o. 0 o. 0 F&B 2.8 0.1 < o. 1 F&S o. 0 o. 0 o. 0 TOTAL 9.8 2.s 1. 2

200 TABLE 7.2I VISIBILHY OBSTRUCTION AT STATION P07A SE PTE~BER 1 977 INSTSUKENT IN OPERATION: 0000 1 SEP-2400 30 SEP

  • TOTAL HOURS OP OPERAT.ION: 120.0 SJ Kl! S1 KM ~O .. 5 K:t DAY OBSTB EPISODE ACCUMULATED EPISODE ACCUKULATED EPISODE ACCU!ULATED KIN VIS TIKE OP TYPE ONSET END DOBATION TIHE SJ Kl't ONSET END DUB ATION TIHB S1 Kn. ONSET BND DURATION TIPIE :SO .. SKZI FOR DA! !IN VIS (EST) (HR) (BR) (EST) (HR) (HR) (EST) (HR) (HR) (KK) (EST)

F/R P/R 0402 1837 0513 1906

1. 19
o. 4 9
o. 86
o. 42 0416 0.03 NONE O. OJ NONE NORE
o. 6 0415 lI POG 22J8 2252 0.22 0.22 NOHE NOHE
1. 90 1.50 0.03 o. 03 FOG 0239 0317 o. 63 o. 63 YOHE RONE o.a 0432 POG 0350 0632 2.69 2. 69 0421 0555 1. 55 1.21 NONE P/H 0813 0846 o. 55 0.55 !iO?i'E NONE P/B 1116 1145 o. 49 0.29 NONE NORE 4.J5 4.16 1. 5S 1.21 POG POG 0512 2210 0637 2242 1.40 0.52
1. 93 1.22
o. 52
1. 74 2214 2239 YOHE 0.42 o. 20
o. 20 2237 2238 NORE
o. 03 0.03 0.03
o. 03 o.* 2238 l

FOG OOS6 06SO 5. 90 5. 01 0224 OS1S 2. 8S 1. 66 0226 0237 o. 18 0.07 0.3 0320 0426 1.10 o. 62 0607 0644 o. 62 0.16 RONE POG 2129 2400 2. 51 2.46 NORE NORE

0. 41 7.47 3. 46 1. 82 1. 28 0.69 FOG 0000 0108 1.13 1.13 NONE BONE 0.3 22J4 --)

F/H os1 a 0723 2.09 2. 09 NONE HONE FOG 20S8 2112 0.24 0.24 NONE NORE FOG 2142 2400 2. 30 2.22 21 SO 2236 il. 76 o. 19 2233 2234 Q.03 O.OJ \ 2307 2334 0.46 o. 32 NORE

s. 7S s. 68 1. 22 o.S1 0.03 O. OJ POG 0000 0129 1. 48 1. 48 0018 0122 1.06 0.27 004S 011 a o. 55 0.00 o. 4 0348 POG 0206 0424 2.29 2. 29 0346 OJ59 0.22 o. 22 0348 0349 o. 02 0.02 F/B 0644 0702 o. 30 0.30 RONE HONE P/H 0756 0833 o. 6J o. 63 NONE NOHE
4. 70 4. 70 1. 28 o. 49 o.S7 o. 10 11 FOG OJ39 0632 2.00 2. 5S 0429 0610 1.68 o. 69 0443 0513 a.so o. 2J 0.2 0507
2. 88 2.5S 1. 68 o. 69 a.so 0.23 12 RAIS 2102 2105 o. 05 o. OS RONE NOHE 2103 o.os O. OS 13 P/R 0141 0817 6.61 6.61 NONE 80HE 0.8 2os8 P /H 2028 2107 O. 6 4 O. 64 2056 20 S8
  • O. 0 4 O. 04 NONE
7. 25 7.2S o. 04 14 FOG 0140 0650 5.18 s. 18 01S7 0646 4. 81 0201 0531 3. 49 2. 82 0_2 0348 S.18 S.18 4. 81 3. 49 2.82 1S P/R 11S5 1203 0.13 O. OS NONE NONE 2. s 1157 0.13 0.05 16 F /H OS37 06H o. 95 o. 95 NONE NONE 2. 3 0602 I
                                                                                                                                                                           . .I 0.9S          0.95 17   P/R    0523   073S       2. 20         2.20                             NOHE                                        NONE                         1.1     1200 F/B    1149   1228       0.65          o. 6S                            NONE                                       NONE 2.85          2.8S 18   F/B    0406   0617       2. 18         2. OS                            NONE                                        NONE                          1.S    0447 POG    2004   21J6       1. 54         1. S4                             NOHE                                       HONE
3. 72 3. S9 19 F/S 0824 08S7 o. S6 o. S6 KONE ROHE 1- 7 0849 O.S6 O.S6 21 F/H 0603 0823 2. 33 1. 03 07 00 0718 o. 30 o. 09 NONE o. 4 0820 0752 0821 0.48 o. 11 0820 0820 o. 01 o.o 1
2. JJ 1. 03 o. 78 0.20 o.o 1 o. 01 23 POG 0236 0711 4. S9 4 *. 41 041S 0630 2. 25 1. S3 0419 0626 2. 11 o. Sl 0.2 0552
4. 59 4. 41 2. 2S 1. SJ 2. 11 0.51 24 P/R 0002 0333 3.SJ 3. 53 NONE NONE 0.4 0623 F/R 044S 0715 2.51 2. s1 0619 0642 0.38 o. 23 0622 0624 O. OJ o. 03
6. 04 0.38 o. 23 o. 03 O. OJ 2S F/B 2319 2400 o. 69 o. 2S 2323 2326 0.04 o. 04 HONE o. 8 2J24
o. 69 0.25 o. 04 o. 04 26 P/B 0000 0016 o. 27 o. 27 NONE HONE 1.1 0202 FOG 0158 0209 o. 20 o. 20 NOKE 9'0NE 0.46 0.46 29 FOG 0139 014S o. 11 0.11 NONE NONE 2. 7 0140 0.11 o. 11

201

  • DAI OBSTB TYPE ORSET END (EST)

SJ KS EPISODE DURATION (HB) ACCUSULUED TIS B SJ K8 (BB) OHS ET BRD (EST) TABLE 7.2I S1 IU! BPISODB DURATION (HB) (CONT.) ACCU SULA'!: RD TIU S1 U (HB) ORSET END (EST) SO- 5 P\l'I EPISODE DUBATIOS (HB) ACCUS ULA TED TIPIE SO. SKB (HB) SIN v:IS FOB DU (KS) TUE OP

                                                                                                                                             !IH ns (EST)
  • 30 HAZE 1116 1201 o. 75 o. 75 ROHE ROHE 1. O* 2302 F/R 1452 2400 9- 13 9. 13 2301 2303 o. 02 o. 02 ROSE 9.B8 9. BB o. 02 r'
74. 71 70. 47 17.98 11. 18 a. 05 4. 45 PEHCEHT OF TOTAL HOURS OF DATA llUH iISIBILITY EQUAL TO OB LESS THU 3 KH 1 K8 0.5 KS POG (F) 4.7 1.5 0.6 HAZE (H) 0.1 o. 0 o.o DRIZZLE (L) o.o o.o o. 0 BAIM (B) < 0.1 o.o o.o SHOii (S) o.o o. 0 o.o F&H 1.2 o. 1 0.1 F&L o.o o.o o. 0 F&B 3.7 < 0.1 o. 1 F&S u. o o.o o. 0 TOTU, 9.8 1.6 0.6

202 .*1 TABLE 7.1J VISIBILITY OBSTRUCTION AT STATION ?03A OCTOBER 1977 INSTRUMEN~ IN OPERATION: 0000 1 OCT-11*0 11 OCT 1550 13 OCT-1235 25 OCT 1120 28 OCT-2*00 31 OCT TOTAL HOORS OP OPERATION: 621. 2

                                ~3    K~                                             S1 Kn                                        50.5 Kl'!

DAI OBSTR EPISODE ACCUftULATED EPISODE ACCUftULATED EPISODE ACCUMULArED MIN VIS TIME OP TYPE ONSET END DURATION T.Il'!E ~J K!'I ONSET EB D DURATION TinE S1 K~ ONSET END DURATION Til'fE SO. Sltl! FOB DAI UN VIS (EST) (HR) (HR) (EST) . (HR) (HR) (EST) (RR) (RR) (KM) (EST) P/R 0055 0 156 ,_ 0 1 o. 52 NONE NONE 1.2 0152 1.01 0.52 FOG 2102 2138 o. 60 O. JO NONE NONE 1.0 2253. FOG 2208 2257 o.80 o. 43 NONE NOKE FOG 1938 2030 1. 0.87

                                      *o
o. 87
o. 73
o. 32
o. 32 2025 2026 o. 01
o. 01
o. 01
o. 01 NONE 0.8 2026 l F/R 051* 0522 o. 14 0.14
o. 14 0.1*

NONE NONE 2.3 0518

                                                                                                                                                                                   -*i
        ?OG      ouo    0346      2.10                 o. 90     0242     0313         o. 51            o. 03                          NONE                        o. 7   0542 FOG      0448   0550       1. 04               o. 60     0514     0547         o. 55            0.07                           NONE
1. 49 1. 06 0.10 RAIN 0342 0347 0.08 0.08 NONE NONE 2. 1 OJ44 0.08 0.08 13 FOG 1922 2208 2. 77 1. 65 , 930 2038 *1.14 0.19 2007 20J7 o. 51 o. 02 o. 4 2008
2. 77 1. 65 0.19 0.51 0.02 1* FOG 0244 0256 o. 19 0.19 NORE NONE 1.3 0252 0.19 0.19
                                                                                                                                                                                   .. l 20  FOG      0346   0800       "* 23               *.17      0354*    0738          J. 73           3.20        0556   0731        1. 59          1.59         0.3    0601
                                                        *.17                            3. 73           3.20                           1. 59          1. 59 21  FOG    . 02*1   0524       2. 72                1. 34     0315    OJ38          0.38            0.12                           RONE                        a*. 4  0515 0435    0517         o. 70            o. 09       0515   0515        0.01           0.01 FOG      0 605  0623       O.JO                 o. 16                          NONE                                           HONE
3. 02 1. 50 1. OB o. 21 o.o 1 o.o 1 22 F/B o*o5 0429 0. 39 o. 39 RONE NONE 2.0 0411
0. 39 0.39 25 F/R 0835 0852 o. 29 0.29 NONE NONE 1.7 0843
o. 29 0.29 28 FOG 1921 2356 "* 58 4. 28 1930 1957
o. "" 0.36 1951 1956 o. 08 0.08 0.3 1955 2043 2351 3. 14 1. 81 2104 2158 o. 90 o. 18
                                   "* 58                ** 28                           3. 58           2.17                           o. 98          o. 26 29   FOG     0003    0025      o. 37                0.37                            NONE                                           NONE                        0.2    2324 FOG      2006   2400       3.89                 3. 21     2132    2400          2.46             1. 23      2136   2239        1 .06          o. 25 2313   2400        o. 78          O.JS 3.58                                            1.23                           1. 84          0.59 30   FOG      9COO   0103    . 1.06                 1. 06     0000 0059
a. 98 a. 96 0000 0058 o. 96 0.45 0.2 0625 POG 0138 1015 8. 62 0. 26 0204 0653 4. 82 4. 65 0205 0317 1. 19 1.05 0424 0649 2. 42 1. 58 9.68 9. 31 5.00 5. 60 4.57 J. 07
36. 04 28. 64 18. 87 12. 71 9. 50 5.54 PERCENT OF TOTAL BOURS OF DATA \IITH VISIBILITY EQUAL TO OR LESS TBAN 3 K~ a. 5 ~!

FOG (P) 4. 4 2.0 0.9 HAZE (B) o.a o.o o. 0 DRIZZLE (L) o.a a.o a.o SAIN (ll) < o. 1 a.o a.o SNOi (S) o.o o.a a. a F&B o.a o.o a. a F&L o.a a.o a. a F&R 0.2 o.a o. a F&S a.o o. 0 o. a TOTAL 4. 6 2. a a. 9

T.\BLE 1:2J vrsrnILI TY OBSTRactION AT STATION ?07 A OCTOB:;R 1977 203 INSTRUl'!ErlT IN OPERATION: 0000 1 OCT-2400 31 OCT

                                                                        'IOTlL HOUE!S OP OPP.BATION:         71Hl,.0
  ------------------------- -------------------------------------------+--------------------------------------------------------------
                                  ~J   K/'5                                            :S 1 KH                                    SO .. 5 KH DAY   OBS TR                  EPISODE         .\CCU !10 LAT ED                     EPISODE     ACCUMIJL.\TED                    EPISODE      .\CCU MU LATED i!!:IN VIS  TI~ E OF TYPE    ONSET    ENO    DURATION       TI11E .SJ       Kl'! ONSET    ENO     DURATION    THIE S1 KP!.      ONSET   END    DORAT.ION    TIME S0.5KM    FOB CAI     MIN VIS (EST)        (HR)               (H ~)               (EST)         (RR)         (HR)               (ES!)          (HR)         (HR)          (KM)     (EST)

F/R 0000 0305 J. 09 3. 09 021 6 021.8 o. 02 o. 02 NONE 0217 P/R 0601 0619 o. 29 o. 29 NONE NONZ F/B 0744 0829 o. 75 0. 75 NONE NONE

                                    ** 13                ** 13                            0.02          o. 02 POG        0614  06?3       o.65                 o. 65                            NONE                                          NONE                        1.8    2227 FOG        2225  2231       0.10                 o. 10                            NONE                                          NONE
o. 7 5 o. 75
  • F /H 0603 07J2 1. *8 1. 32 0624 0712 o. 79 o. 53 0646 0652 0.10 o. 10 0.4 0652
1. :is 1. 32 o. 79 o. 53 o. 10 . 0- 10 FOG 1938 2041 1.05 1. 05 1946 2039 o. 88 0.58 19*7 2007 O.JJ o. 09 0.3 1959
l. 0 5 1.05 o. 88 0.58 o. 33 0. 09 RAIN 0357 0405 o. 13 o. 13 NONE BONE 1.1 0400 0.13 0.13 14 POG 0519 0537 0.30 o. JO NONE NONE 1. 6 0534 0.30 O. 30 18 RAIN 1510 1511 0.03 O. OJ NONE NOHE 2. 8 1510 O.OJ 0.03 19 POG 2021 2*00 3. 66 3.65 2033 2129 o. 93 0.57 20l6 2127 o. 84 0.20 O.J. 2038 2214 2400 1. 77 1- 17
  • 2300 2329 o. 49 0.27
3. 66 3. 65 2. 70 1. 74 1~33 o. *7 20 FOG 0000 0512 5. 19 s. 19 0000 0437 *-62 3. 82 0045 0114 o. 49 o. 23 0.2 0200 025* o. 90 0.51 0328 03"3 o. 2* o. 2*

F/H 0602 0818 2.21 2. 0 3 0633 0802 1. 23 0635 0758 1.38 o. 99

                        --0252                               - ---- -------------------------------------- --- ---------------------------------------- -.--- -
7. *6 7. 22 6- 11 5. OS 3. 01 1- 98 22 FOG 0129 1.39
                                        -- ---- ------    1.JS                            NONE                                          NONE                         1.4   0412 F/R        0*09   0539      1.*9                 1. *9                            NONE                                          NONE 2.88                 2.88

~* 25 F/R 1946 2202 2.27 2. 27 NONE 1. 5 2015 2.27 2. 27 26 FOG 0057 0758 7. 01 04** 0630 1- 76 1. 71 NOHE o. 5 0535 FOG 2310 HOO O. 8* NONE NONE

7. 85 7. 85 1- 76 1. 71 27 FOG FOG 0000 2120 1042 2*00 lo*. 10
2. 67
10. 70
2. 67 0052 2225 0944 2400 6.87
1. 59
8. 87 1- 38 0115 0359 2-NONE 1* 2. 74 o. 3 0153
13. 37 13. 37 10. 46 l 0.25 2. 74 2- 74 28 FOG 0000 0930 9. 50 9.50 0000 0 202 2. 03 2.0J 0012 0139 1- 4* 1 *** o.3 0115 FOG 1525 2*00 8. 58 8. 58 1631 1728 0.95 O. S* NONE
18. 08 10. oe 2. 98 2.57 1- *4 29 FOG 0000 2*00 2*. 00 24. 00 0935 1032 o. 95 o. 95 NONE 0.8 0956 2*. 00 2*. 00 o. 95 o. 95 JO FOG 0000 11 *1 11. 68 11. 69 02.32 0358 1. 42 1.37 0258 0327 o. 49 O.J8 0.2 OJ25 0503 0520 o. 28 0.29 MONE 0713 101" 3.02 3. 02 NONE
11. 68 11. 68 4. 72 ** 67 o. 38
99. 11 98. 70 31. 38 28. 07 9. 45 7. 20 PERCENT OF TOTAL HOURS OF DATA 'lil'ITH VISIBILITY EQUAL TO OH LESS THAN 0.5 KM FOG (F) 11. 7 3.5 0.8 HAZE (H) o. 0 o.o o. 0 OS!ZZLE (L} o.o o. 0 o. 0 RAIN (R) < 0.1 o.o o. 0 SNO * (S) o. 0 o.o o.o F&H o.* 0. 2 0. 1 F&L o.o o.o o. 0 1.1 0. 1 0 .0 HS o.o o. 0 o. 0 IOTAL l J.J 3. 8 1. 0

204 TABlE 7 .. 1K VISIBILITY OBSTRUCTIOB AT STATIOH P03A NOVE"BER 1977 INSTBO"EHT IN OPERATION: 0000 1 ROV-0600 25 NOV 1040 25 NOV-0120 26 NOV OQ35 26 NOV-1535 27 NOV 0700 28 NOV-2QOO JO NOV TOTAL BOURS Of OPERATION: 696.6 SJ Kl! S1 K~ ~O. 5 K! DAY OBSTR EPISODE ACCO"DLATED EPISODE ACCU l!ULAT ED EPISODE ACCOftOLUED UH VIS UBE OP . TYPE ORSET END DUBUIOH T.I?!E :S3 Kl! ONSET END. DCRATIOH T'Il'!.:E S1 Kl't ONSET ZHD DORAUOB TI!E ~0.SK! FOR DU !IR VIS (EST) (HR) (HR) (EST) (HR) (HR) (EST) (HB) (BR) (KB) (ES~) F/B 1401 1*52 o. 85 a. 61 MOYE HONE 1.1 1416 F/B 2000 20*3 o. 71 a. 15 BONE HOSE 1.56 0.76 BAIN 0718 0721 0.06 0.06 NONE HOKE 0719 0.06 0.06 FOG 2353 2J 56 o. 05 O. OS BONE NOYE 2.4 2355-O. 0 5 O. 05 FOG 0003 0047 a. 7J 0.1J !OBE YOHE 0634 POG 0416 0856 *.68 J. 70 0630 06J8 0.13 o. 13 HOYE

5. 41 J. 8J o. 13 o. 13 BAU 2059 2101 O.OJ a. 03 NOBE ROHE 2.5 2100*

10 SHOii SROV 0924 12J1 1030 12*2 o.oJ

1. 09 0.19 o.oJ 0.29
o. 12 NORE NOHE HOBE HORE 1.5 1240 l 11 SHOii 1119 1J39 2.3" 1.01 11J2 1154 0.35 0.16 0.03 0.03 1n9 BAZE 2028 204J 0.25 a. 19 ROBE NOBE 2.59 1. 20 0.35 o. 16 0.03 0.03 12 SNOll 0513 0846 3. 54 3.12 osss on9 1. 91 1. 82 0556 0723 1. 46 1. 22 0616*

3.54 J.12 1.91 1. 82 1. *6 1. 22

   ----------------------------------------------------------------------------------------.----------------------------~-----------

15 P/R 0846 0850 o. 0 7 0.07 NOBE HOBE 2.2 0.07 0.07 19 RAIN 2222 2233 0.17 o. 10 ROHE ROHE 2225.

a. 11 0.10 20 RAIH 0609 0619 0.18 0.18 0613 0613 o. 01 a. 01 HORE o. 9 0613
o. 18 o. 18 o. 01 a. a 1 2J P/L 10QJ 1050 o. 11 o. 11 RORE BO!E 2.1 1047
o. 11 o. 11 25 P/S 0403 0602 1. 96 1. 98 0409 0602 1. 87 1. 47 0538 0602 0.39 0.39 0.1 1717 SNOll 1406 1607 2. 02 1. JO 1427 H59 0.5J a. 14 NOHB SHOii 16*9 2400 7. 18 7.18 1656 1917 2.35 2.29 1658 1819 1. 35 1.13 2136 21.47 0.20 0.07 HOME 2_228 2400 1.54 1. 39 230J 2*00 o. 95 0.82 -\

11.18 10. 45 6. 49 5.36 2. 70 2.34 26 S!Oll 0000* 0117 1.29 1.29 0000 01 lJ 1.22 1. 22 0000 0110 1.11 a. 73 0.2 0009 . SNOW 0517 0745 2. *6 1. 47 0520 0531 o. 18 o. 02 llOBB 0616 06S.9 o. 71 o. 06 NOBE J. 74 2. 76 2. 10 1.J 0 1. 17 a. 73 27 SROV 09J7. 1147 2. 17 0.59 NORE ROHE 0.1 1529* SHOW 1233 1537 3.07 2.32 1458 1537 0.65 a. 65 150J 1537 0.56 o. 56

5. 23 2. 91 0.65 a. 65 0.56 o. 56 29 FOG 025J 0258 o. 09 a. 09 NORE !O!E 2.2 0256 -

0.09 o.o9 JO P/R 142* 1433 o. 15 0.15 NONE NONE . 1.1 1U7 P/R 1504 1541 0.61 o. 61 NONE HORE F/R 1746 204 1 2. 91 2.*7 NOHE SOBE f/R 2236 2255 a. 33 a. 2* NONE HORE P/R 23*9 2000 0.16 a. 18 RONE ROME

                                   ** 17          J. 65 J9.Q5           29. 77                      11. 65               9. 44                      s. 92

205

   *                            '?ABLE 7. 1K (CONT.J PEBCENT OF TOTAL BOOBS 07 DATA llITH VISIBILITY EQUAL TO OB LESS THlM 3 K*                  1 KR          0.5 KS POG (FJ                 o. 6               <  0.1            o. 0 HAZE  (BJ             < o. 1                 o.o            o.o DRIZZLE   (L)           o.o                   a. a           o.o BAIM  (R)               a.,                <  0.1            o. 0 SNOll (S)               2. 7                  1.1            0.6 F&H                     o. 1                  o.o            o.o F&L                   < o.,                   o.o            o.o F&B                     o. 5                  o.o            o.o F&S                     0. 3                  0.2            o. 1 TOTAL                   4.3                   1.4            0. 7 l ..

206 THLE 7. 2K VISIBILITY OBSTRUCTION AT STATION P07! NOVEMBER 1977 INSTROMENT IN OPERATION: 0000 1 NOV-13SO 10 NOV 2010 10 NOV-0825 2S NOV 1110 25 NOV-0235 26 NOV 063S 26 NOV-1S40 27 NOV 0800 28 NOV-2400 30 NOV TOTAL HOORS OF OPERATION: 690 .. 5 OBSTR TYPE ONSE'I END SJ KH EPI.SODE DURATION ACCUHUL TIHE SJ KM

                                                    ~TED ONSE'I   EN 0
S1 EPISODE DURATION Kt!

lCCOMOLATEO* TI!1E S1 IOI ONSET END

                                                                                                                          ~0 .. 5 Kl!

EPISODE OORATION ACCUMULATED TIHE SO. SKM HIN VIS FOR DAY TIME OF

                                                                                                                                                               !UH VIS l

(EST) (HR) (HR) (EST) (HR) (HR) (EST) (HR) (HR) (KM) (EST) I P/R 1515 1549 0.5& o. 13 NONE NONE 1-5 1901 F/R 1854 192* a.so o. 50 NORE NONE

                                                                                                                                                                         .J 1.06          o. 62 1138   12"0       1. 04         o. 91      11**   1233       0. 82            0-34                                                       o. s   1146 RAIN
o. 91 0.82 0-34 NONE l i
                                                                                                                                                                          .1 7  FOG      2251   2400        1_ 14                   2300   2356       0.94                            2308   2317        o. 14        o. 14       0-4    2314
1. 14 1. 14 o. 9* o. 94 o. 14 o_ 14 POG 0000 00 *1 0.68 o.68 NONE NONE 0238 FOG 0121 0334 2.21 2. 21 0136 0318 1_ 70 1. 70 0228 030S o. 62 o. 46 FOG 0527 0720 1-88 1.30 0646 0704 0-31 0.31 NONE F/H 0938 1007 o. 47 o. 47 NONE NONE
5. 25 4.67 2. 01 2. 01 o. 62 0.46 RAIN 2156 21S8 O. O* o. 04 NONE NONE 2.9 2157 O-O* o.o*

10 SNOW 1138 1205 0.45 o. 26 NONE NONE D-3 1330 SNOW 1240 13*7 1. 10 1. 10 1257 1347 o. 83 o. 70 1328 1347 O.J1 i.24 1.55 1. 36 o. 83 o. 70 o. 31 0.2* 11 SNO.V 0818 0925 1.11 o. 21 NONE NONE 0.2 2134 SHOR 1000 1038 0.63 o. 43 NONE NORE SNOW 1117 1207 o. 83 o. 27 NONE NONE SNO'il 1257 1344 o_ 79 0.37 NONE: NONE SNO'll 1415 1516 1. 02 o. 41 NONE NOHE SNOW 2001 20 14 o. 21 o. 18 NONE NONE SNOW 2105 2303. 1_97 1. 97 2109 2248 1. 66 .1. 32 2133 2226 o. 87 0.87 6.5S 3. 84 1. 66 1.32" o. 87 0- 87 12 SNOW 00*6 02S1 2-08 o. 88 *0122 0126 o.o5 o. 05 0123 0124 o. 01 o. 0 1 0124 SNOW 03*7 O*S9 1_20 0. 65 NONE NONE

3. 28 1. 53 0- OS o. 0 5 o. 01 0-01 1ll FOG 03*8 0353 o. 08 o. oe NONE NONE 2. 7 0350 o.oa o.oa 15 P/R 0902 0907 0. 09 o. 09 NONE NONE 1.6 0905
o. 09 0.09 17 RAIN 17"2 1748 o. 10 o. 10 1744 1745 o. 01 o. 01 NONE 0.9
o. 10 o. 10 0.01 o. 01 19 RUN 2243 2250 0.12 0- 12 2246 2246 o. 01 o. 01 NONE o. 8 2246 0-12 0.12 0- 01 0. 01 20 RAIN 1332 134S 0-22 o. 22 NONE NONE 1- 1 1334 0.22 o. 22 23 P/L 091S 0940 Q.41 o. 41 NONE NONE 1- 8 1316 DRIZ 1136 1331 1. 92 1. 49 SQNP. NOHE DRIZ 1436 1 458 o. 36 o. 36 NONE NONE
2. 69 2.26 25 F/S 0*21 0823 4. 03 4. OJ 0428 0823 3. 91 3. S2 0430 0546 1- 27 0. 26 0- 1 0823 0736 0823 0-77 o. 77 SNOW 1113 1137 o.4 1 o. 41 NONE NONE
4. 44 3.91 3. 52 2. 04 1. 0 3 26 SNOW 0000 0234 2. 56 2. 43 0043 0115 o_ 53 o. 53 NONE 0.1 0234 0205 0234 o. 48 o. 48 0213 0234 0- 34 0.17 SNOW 0637 0930 2. 88 2.88 0637 070U o. 45 a. . !45 0637 0701 o. 40 0- 40 0759 0913 1. 23 1; 23 0806 0854 o.so o. 80
s. 4* 5. 31 2.69 2.. 69 1. 55 1. 3 B 27 S!fOll 09S9 1055 0.9 3 o. 63 NONE NONE 0. 1 1540 SNOW 1135 1215 o. 67 o. 31 NONE NONE SMOW 1321 1540 l.31 1. 82 1 540 o.n o. 92 1052 O. BO o. 69
3. 91 2. 81 o. 92 0.92 o. 80 o. 5q 30 HAZE 0549 0622 o. 54 O. SL& NO~E 1.1 1956 F/R 1307 2400 10.98 10. 88 ~ONE
11. 4 2 11. 42
48.
  • 1 40. 95 1 3. 84 12. 51 6. 34 4. B 1

207

  • TABLE 7. 2K (CORT. )

PERCENT OF TOTAL HOURS OF DATA WITH VISIBILITY EQUAL TO OR L!SS THAR 3 K" 1 Kn o.s ~n FOG (Fl o.a o.* 0.1 BAZE (HI 0.1 o. 0 o. 0 DRIZZLE (L) o. 3 o.o o. 0 BUY !Bl 0.2 o. 1 o. 0 SHO'i' (S) 2. 2 o. a o. 5 F6B 0.1 o.o o.o P6L 0.1 o.o o. 0 P6B 1. 7 o. 0 o.o r- P&S o. 6 o.s 0.1 TOTAL s. 9 1. a o. 7

208 TAP.LC: 7,. 1L VISIBilIT'! OBSTRUCTION .\T ST.\T!ON POH+. DECF:i1Bf.R 1977 INSTBOME~T IH OPERATION: 0000 1 OEC-1310 B *oEc 0800 12 DEC-1535 20 OEC 0900 23 DEC-1130 28 DEC 1455 28 DEC-2400 3 l DEC TOTAL RO URS OF OP FRAT ION: 5*." SJ KM s1

                                                                                             !(j
                                                                                                                          --~

S0.5 KM DAY OBSTR EPISODE  ;\CCOHUL.~TF.0 EPISODE ~CCU11ULATED ~PISODE ACC011UL.\TED aw VIS TIME OF

           'l'YPE   ONSET     END    DUliA'llOX     TIME Sl KM       ONSET    END    DURATION       TIH~  Sl KM      ONSET    END    DORAT'.ION T.I!'!E SO- SKM FCB DAY  aIN VIS (EST)        (HR)            (HR)               (EST)        (HF)            (RR)               (EST)       (HR)            (H8)      (Ka)      (EST)

F/R 0000 004 1 o. 68 o. 10 NONE NONE 1.3 1917 F/R . 0 120 0138 0.30 o. 18 NONE NONE SNOW 19. 1" 1945 o. 52 0.21 NONE NONE 1.50 o. 49 SNOW 0208 0219 o. 18 o. 1" NONE NONE o. 2 1019 SNOW 0933 2022 l0.82 7.57 1002 1035 0- 55 o. 55 1002 1033 o. 51 0-38 1244 l 256 0- 19 o. 0 5 NONE 1327 1513 1- 76 o. 74 1416 1433 o. 29 o. 03 SNOW 2205 2315 1. l7 o. 81 NONE NONE

12. 1 B 8.51 2. 50 1. 34 0.00 o. 40 7 F/S 1035 1220 l. 75 1. 26 1050 1051 0.02 o. 02 NONE o. 9 1050
1. 75 l.26 0.02 0.02 SRO'll 0822 0832 o. 18 o. 13 SONE NONE 0.1 1313 SNOi 0928 0950 o. 38 O. 38 NONE NONE SNOi 1021 1117 o. 95 o. 35 NONE NONE SNOV 1208 1313 1. 10 1. lO 1223 1313 O. 84 o. 84 1249 1313 o. 41 0- "1
2. 60 1-96 0.84 0- 84 o. 41 0.41 13 F/R 1541 2400 8. 31 8. 31 1802 2 400 5_ 96 5-96 2141 2400 2.32 2-31 0.3 2356 B.31 8. 31 5. ~6 5. 96 2.32 2.31
  • 14 F/B 0000 0235 2.59 2. 59 0000 0227 2.45 0039 0142 0102 0207
o. 38 0- 42 0- 13
o. 42 o." 0204
2. 59 2. 59 2. 45 2. 45 o. 79 o. 55 18 FOG 0358 0505 1- 12 1. 12 NONE NONE 1.1 0431 FOG 054 7 0559 o. 20 o. 20 NONE NONE FOG 0811 1058 2. 77 2. 36 NONE NONE 4.10 3.69 20 F /S 1411 1533 1.37 0- 69 1514 1533 0- 3 l 0- 06 NONE 0.5 1533
1. 37 0-69 o. 31 o. 06 24 F/L 1726 1759 o. 53 o. 25 NONE NONE 2."
o. 53 0.25 25 SNO ll 0302 0322 0.32 o. 20 NONE NONE 0.3 SNOll 0529 1825 12.93 0. 21 0806 0925 1.32 o. 56 0842 084 7 O.OB 0- 08 0957 1022 0- 41 o. 32 NONE l 103 1217 1. 24 o. 37 1115 1137 0-37 o. 12 1251 1346 0.91 o. 18 NONE 1518 1701 1. 71 o. 1D NONE l 744 1821 0-60 0-11 NONE SNOV 1856 2346 4.84 3. 23 1903 2123 2.3* o. 42 NONE
18. 09 11. 70 8. 54 2. 06 o. 45 o. 19 26 SNOW 0000 0429 4. 49 3. 04 0042 0102 o. 33 0- 16 NONE 0-2 1351 0140 0323 1. 71 o. 09 NONE SNOW 0510 0528 0-30 o. 11 NONE NONE SNOW 0811 2209 13.98 B. 13 1039 1840 8. 01 2. 52 1055 ,, 08 o_ 22 o.oo 1200 1312 1. 19 0-06 1342 1518 1- 60 0- 87 1550 1616 0.04 1803 1831 o.
o. ""

48 0.05 SNOW 2249 2336 o. 79 o. 29 NONE NONE

19. 55 11. 56 10.06  ?... 77 3. 94 1-02 27 SNOi 0007 0122 1. 26 o. "1 NONE NONE o.6 1354 SNOW 0204 0217 0-21 o. 08 NONE NONE SNOW 0313 0325 o. 20 o. 20 NONE NONE SNOW 0409 0433 0.40 o. *o 0415 0428 o. 23 o. 02 NONE SNOW 06Dl 0620 o. 32 0.18 HONE NONE SNOW 0656 0809 1. 21 o. 52 NONE NO!fE SNOW 1002 1050 *o. so o. 37 NONE !IONE SNOW 1135 1"21 2. 78 1. 27 1253 lJSS 1.02 o. 07 N'ONE
7. 17 3. 43 1. 25 0- 09 29 FOG 22** 2256 o. 20 0.20 NONE NONE 2. 1 2249 0.20 0.20 30 FOG 0454 0540 o. 7o o. 76 !iCNF: NONE 2. 1 0502 F/H 0739 0846 1.11 1.11 NO~E NONE 1.86 1.86
91. 8 l 56. 51 31~g3 15.59 8. 72 4.89

209 I FOG (F) o.a TABLE 7. 1L (CONT.) PERCENT OF TOTAL ROUBS OF DATA WITII VISIBILITY EQUAL TO OB LESS TRAN 3 I o.o o.s '"

o. 0 I HAZE (H) o.o o.o o.o
o. 0 DRIZZLE {L) o. 0 o.o BAIM {B) o.o o.o o.o SHOli (S) 6. q 1.2 0.3 F&H 2. 1 1. q o.s F&L < o. 1 o. 0 o. 0 F&B < o. 1 o. 0 o.o F&S 0.3 < o. 1 o.o
 ~OTAL                    9. 7                 2.7            o. a

TABLE 7.2L VISIBILITY OBSTRUCTION AT STATION P07A DECEl!BER 1977 210 INSTRU!IEMT IN OPERATION: 0000 T DEC*TT25 1 DEC T320 7 DEC-0810 9 DEC 0920 12 DEC-1825 20 DEC 0935 23 DEC-0935 26 DEC 1340 29 DEc-2qoo 31 DEC TOTAL HOURS OP OPERATION: 529.7

SJ Kl! ST Kl! SO. 5 Kl!

DAI OBSTR EPISODE !CCU l!OL!TED *EP'.ISODE ACCO !IULATED EPISODE ACCU!IDLATED SIB 'I.IS TI!!E OP. TYPE ONSET ERO DDBATION TI!IE :SJ Kl! ONSET END DURATION TI!IE ST Kl! ONSET END DURATION TI!IE :SO.SK!! FOR DAY l!IB VIS (EST) (HR) (HR) (EST) (BR) (BR) (ES'.!:) (BR) (HR) (Kl!) (EST). P/R 0000 OT40 T.67 T. 59 NONE BOBE 1-5 T939. P/L 0428 04q9 0.34 0.34 NONE ROHE F/ll 1JqJ T354 0 .. 18 O. T8 NOHE HOBB SNO'll 1931 1955 0. 40 o. 40 HONE MOllE 2.60 2.5T SHOii 1311 1331 0.33 0.33 HONE BOBE 1. q 1325 O.JJ 0.33 l!/S T322 15T9 T.96 T.96 BORE NOHE 1. a. T332 J 6 SHOii T043 1916 a.ss 8.17 1T33 1650 5. 29 T145 1238 a.as 0. 6T 0.3 1219 T343 1452 T.16 o. 27 1725 1757 o.53 0.20 BOBE SHOW 2052 2106 0. 23 0.23 BONE HOSE SHOii 2T56 2357 2.02 1. 95 230T 2315 0.23 o. 1 T HONE

10. 80 T0. 35 6.05 2.04 a. ea 1 F/S 093T 1120 1.8 T 1. 78 1052 TT20 0.46 o. 19 HONE 0.2 1320 P/S 1320 T549 2.48 2. qa 1320 1qq5 T. qT T.41 T320 1414 o. 91 0. 91 4.29 Q. 26 1.87 T.60 0. 91 . 0.91 SBO'll 0825 0913 o.ao o. 73 RONE MOSE 0.2 1601 SBO'll o9qs T054 T. TO 0. 67 NOHE SOBE J!/S 1236 2400 11.40 11. qo 1302 2400 10. 97 TO. 97 TJ28 2QOO ' T0.54 10.54 T3.30 12. 80 T0.97 10. 97 Ta.sq 10. 54 1! /S 0000 0001 0.oT 0.01 oDoo 0001 a.OT a.01 ooDo 0403 q.o5 q.o5 0.2 0755 0522 OBOT 2. 65 t. 95 a.OT 8. 0 T 8. 0T 8. 0 T 6.70 6.0 T
   -------~----------------------------------------------------------------------~----------------------------------------~-----------

T3 P/B T659 T720 0.34 0. 34 NONE NOHE 0.9 2310 P/B T8T5 2400 5. 75 5. 75 223T 2400 T.Q9 1_ q9 ROBE 6.09 6. 09 1. 49 n P/B 0000 0754 7.90 1. T9 0008 OH2 T.57 T. 57 NOSE a.a 0132 7.90 7. T9 1.57 1. 57 20 SHO'll TQ24 T821 3.95 3. 50 T546 1821 2. 59 2-25 1750 1821 O.ST 0. 51 0.2 T821 J. 9 5 3. 50 2. 59 2. 25 0. 5 T o. 5T

   ----------~--~--------------------------------------------------------------------------------------------------------~-----------

25 SSO'll 0339 0402 0.31 0.37 NOHE SOBE 0.5 1129 SIOli 07TJ 07q7 0.51 O. T5 ROHE HO!IE SllOV 0914 TO 17 T. 0 q 0.68 HOME HONE SllOV 1054 1208 T. 25 1. 06 TT16 1200 0.12 o. 34 HO!IB ssow 1309 T521 2.21 T.29 BOSE BOSE SNO'll T555 T608 0. 23 o. 23 NOHE HOSE 511011 1745 T807 0.37 o.34 HONE NOSE SHOW T839 T917 0.63 O. QT BO!E NOHE SHOW 2159 2228 0.48 o. 48 HOHB HONE SIOB 233Q 2356 0.36 0.36 BONE SOBE 7.51 5.38 0.12 0.34 26 S!OV 0009 0102 0.89 o. 57 HO!IB HORE o.s. 0933 SHOii 0700 0723 0.37 0.37 NOHE NOHE SIO'll 0917 0933 0.21 0.27 0929 0933 0.01 0.07 NOHE T. 53 1.20 0.07 0. 07

   ------------------~------~-------------------------------------------------------------------~--------------~----------------~~-
68. 28 63. T6 33. 35 31. 20 20.70 18.85 PERCENT OP TOTAL BOUBS OP DATA llITB VISIBILITY EQOAL TO*OR LBSS TBAS T K~ 0. 5 Kl!

FOG (P) o. o o. 0 o. a BAZB (B) 0.0 o.o 0.0 DRIZZLE (L) o.o o.o 0.0 BAIH (B) o.o o. 0 o. o SMOll (S) 4.3 T. 4 0.3 P&B 2.5 0. 6 O.D F&L o. T o.o o.o P& B 0-3 o.o o.o F&S 3. 9 3.3 TOTAL TT. 9 5.9 3. 6

211 VIII. TOTAL SOLAR RADIATION Total solar radiation (direct plus diffuse on a horizontal surface) is measured with a WeatherMeasure Model R411 pyranometer at the two main stations of each network. Data from the pyranometers in both the Cook and Palisades networks arc in~luded in this report for completeness. 2 Data are reported in Langleys (Ly), where 1 Ly ~ 1 g* cal *cm-Data are tabulated by month, showing the daily totals of total solar radiation received. To allow for chart changes, calibration and routine maintenance, a daily total is not considered missing if 1) the instrument was out of operation for only a few hours at most, and 2) an accurate estimate of the incident sol~r radiation received

  • at the station dur;Lng the down-time c.ar.. be made from the data at the other stations.

listed within parentheses. Totals for *such days are An earlier analysis of measured values of solar radiation compared to reference values for clear days (see Third Annual Report) showed that the data from the WeatherMeasure pyranometers were 5% to 15% low. A side-by-side comparison of each of the WeatherMeasure pyranometers to a calibrated Eppley pyranometer confirmed that the output from the weatherMeasure pyranometers was low. The comparisons, however, did not cover a wide enough range of conditions to determine the magnitude of new correction factors. Until such comparisons can be made, the previously-computed

  • correction factor for each instrument will continue to be used.

212

                                                                                       *1 TABi:.E    8.lA; Daily totals of incident solar radiation (direct plus diffuse) on a horizontal surface at the ground (La.~gleys/day) .                .:_

Jan I 77 Feb '77 Day Station Day Station C03A ClOA P03A P07A C03A ClOA P03A P07A 1 66 111 44 74 1 185 204 129 178 *-1 2 147 144 109 127 2 213 l.~H'> 19.8 ~04 3 89 99 76 93 3 135 125 125 125 4 156 152 139 156 4 101 109 97 107. 5 198 187 M 190 5 284 283 213 177 6 84 96 M 89 6 211 193 163 194 7 126 147 M 158 7 267 254 245 219 -*1 8 67 76 M 88 8 276 259 248 256 __l 9 121 l16 M 126 9 260 (227) 238 228 10 99 111 M 124 10 276 259 247 (251)

                                                                                      *-1 11     162      173      M     123        11    286    259        265    265       i 12     123      136      75    125        12    109      M          87    90 13      55       55      46     57        13     M       M        l.25   124 14     l13      127      95    119        14     M       M        179    196
                                                                                    .I 15     l17      l16      88    112        15    309    273        234    274

__ J 16 (142) 152 122 145 16 295 M M 304 17 219 187 138 127 17 322 289 M 284 18 210 116 160 160 18 205 M M 164 19 168 157 139 143 19 133 M 169 181 20 124 139 118 126 20 291 M 225 283 21 189 172 150 176 21 262 M 241 251 22 195 187 172 194 22 28~ M 258 263 i _J 23 86 95 . 77 88 23 155 M 128 123 24 71 85 51 70 24 41 M 53 55 25 105 l15 115 124 25 279 269' 201 196 26 119 106 79 94 26 128 128 121 137 27 230 M 197 203 27 188 184 . 193 200 28 150 M 120 161 28 315 304 330 304 29 167 M 167 177 30 225 M 178 192 31 250 245 200 208 Montnly Totals (4373) M M 4149 M M M (5633)

Monthly Totals (8570)* M (8299) 7991 M (12024) M 11236

           *The pyranometer at station C03A was slightly out-of-level during the period 7 March - 2 May 1977. For a clear day the recorded total daily insolation value is estimated to be 12% high .

Monthly Totals M 16192 (16035) 15360 M M 14190 M

215 TABLE 8.10: Daily totals of incident solar radiation (direct plus diffuse) on a horizontal surface at the ground (Langleys/day) . July '77 August '77 Day Station Day Station C03A ClOA P03A P07A C03A ClOA P03A P07A 1 692 665 644 633 1 M (603) 581 626 2 668 651 640 382 2 M 333 378 M 3 418 416 358 M 3 M 478 502 565 4 5 36' 531 536 495 4 M 363 337 423 5 647 625 605 611 5 270 297 308 M 6 642 617 592 578 6 172 165 213 M 7 470 451 394 446 7 385 344 354 M 8 355 407 405 388 8 287 278 278 M 9 661 599 590 M 9 150 167 179 177 10 566 555 497 M 10 473 414 404 386 11 289 304 322 214 11 139 138 111 115 12 485 434 440 381 12 602 592 563 534 13 673 M 634 M 13 524 430 507 M 14 433 M 388 386 14 565 553 535 .M 15 612 586 565 M 15 573 564 539 M 16 307 304 320 311 16 201 193 200 186 17 627 587 554 573 17 583 512 535 M 18 319 385 391 M 18 584 499 533 498 19 600 569 543 M 19 366 344 457 M 20 582 541 526 561 20 329 330 367 M 21 404 386 365 (352} 21 151 133 132 111 22 668 636 614 624 22 530 506 509 M 23 641 624 586 621 23 290 269 236 M 24 217 232 181 M 24 557 524 511 M 25 615 563 585 (581) 25 437 454 423 M 26 557 528 513 M 26 407 414 371 M 27 613 608 569 (605) 27 415 399 369 M 28 547 510 459 M 28 413 406 338 M 29 370 335 253 242 29 442* 388 324 M 30 M M 540 (555) 30 493 490 494 M 31 M M 516 M 31 434 420 397 M Monthly Totals M M 15125 M M (12000) 11985 M

216 TABLE 8.lE: Daily totals of incident solar radiation (direct plus diffuse) on a horizontal surface at the ground (Langleys/day). e:

                                                                                   --)

September '77 October '77 Day Station Day Station C03A ClOA P03A P07A C03A ClOA P03A P07A .. , 1 2 212 295 230 282 187 212 176 . 198 1 2 54 349 59 319 47 3.27 55 (316) I 3 442 425 448 M 3 322 304 361 ( 33'5) 4 409 375 395 M 4 378 360 348 364

                                                                                    ... I 5      290    276    250    203         5    199    178     134    120 6      480    460    452     M          6    315    278     225    266 7

8 399 303 403 304

                            . 327 278 M

M 7 8 105 229 113 194 111 166 121 177 ] 9 340 281 321 M 9 77 55 50 41 10 422 379 395 M 10 250 267 245 248 11 481 464 449 M 11 191 169 157 158 12 109 117 112 M 12 175 133 122 122 13 55 57 62 M 13 311 328 294 313 14 431 418 410 M 14 322 319 301 318 i 15 43 54 58 M 15 211 208 205 231 _I e: 16 238 180 240 M 16 170 175 177 240 17 206 187 192 M 17 300 303 277 307 18 253 246 281 M 18 87 97 92 79 19 167 166 88 80 19 209 145 177 230 20 40 43 52 86 20 296 294 272 265 21 139 129 192 190 21 274 277 255 270 22 275 282 250 271 22 173 187 142 M 23 180 157 107 94 23 67 89 62 66 24 272 208 186 M 24 213 220 217 M 25 293 277 238 M 25 125 116 99 103 26 363 343 329 349 26 58 71 66 76 27 179 142 118 136 27 1.94 204 176 194 28 351 307 290 319 28 255 258 247 258 i f 29 188 195 155 153 29 252 229 237 172 .* .! 30 162 160 88 89 30 147 144 168 158 31 117 117 118 135 Monthly Totals 8017 7547 7162 M 6425 6210 5875 M

217 TABLE 8.lF: Daily totals of incident solar radiation (direct plus diffuse) on a horizontal surface at the ground_ (Langleys/day) . November '77 December '77 Day Station Day Station C03A ClOA P03A P07A C03A ClOA P03A P07A 1 50 69 68 87 1 52 67 52 40 2 235 227 210 221 2 64 104 3i 22 3 126 M 118 104 3 27 56 31 . 66 4 238 M 153 242 4 163 161 153 163 5 134 128 139 131 5 36 61 42 37 6 171 158 145 (143) 6 48 79 27 52 7 74 83 87 86 7 83 124 37 80 8 94 137 108 109 8 28 49 29 24 9 89 92 86 68 9 56 96 39 65 10 44 69 18 20 10 54 102 47 82 11 60 64 101 96 11 158 156 64 93 12 129 203 199 222 12 51 71 47 46 I -- 13 181 181 171 155 13 18 33 22 21 14 194 191 148 135 14 21 42 30 37 15 151 142 113 92 15 135 143 114 109 16 197 185 175 177 16 156 158 145 147 17 147 127 121 122 17 60 69 65 52 18 60 55 36 22 18 85 96 73 56 19 59 62 78 79 19 45 55 35 27 20 53 47 39 38 20 8 21 11 8 21 154 153 141 121 21 59 87 36 55 22 82 84 85 80 22 144 116 118 119 23 15 25 16 16 23 150 145 129 M 24 40 50 30 26 24 48 59 63 57 25 35 40 47 46 25 63 87 54 69 26 166 157 141 14G 26 59 107 37 74 27 60 85 53 63 27 94 122 68 111 28 134 130 78 58 28 53 71 41 61 29 160 153 134 147 29 105 104 86 86 30 31 55 34 28 30 72 99 106 78 31 52 65 56 61 Monthly Totals 3363 M 3072 (3079) 2247 2805 20_88 M

                                                                                       ~

218 IX. SU~..ARY

                                                                      *1 This section summarizes the data presented in this            J report. Monthly totals or averages for all stations are i'
                                                                        .J presented for data from January 1977 through December 1977.

Table 9.lA shows monthly totals of p~ecipitation throughout the !'letwork. Table 9.lB gives the prevailing wind dirc::ction {¢1.ef ined as the wind direction which occurs most frequently during the month), the average wind speed, and the percentage of onshore (SW through N) and offshore (NE through S) winds for each month at the two main stations. Table 9.lC summarizes the percentage of time visibility was reduced to or below given distances, by month for the two main I J stations. Table 9.lD gives the monthly average of daily total solar radiation only for stations which had no missing data during a given month.

                                                                       . I

_J __ J _1

Table 9.lA Monthly Total Precipitation (inches) Month POlA P02A P03A P04A POSA P06A P07A POSA P09A PlOA PllA Pl2A Pl3A JAN 77 M M 1.12 (1. 54) (1.35) 1. 23 l.47 (1.56) M (1.49) M 1.14 (1.22) FEB 77 M M 0.61 0.81 0.69, (0.88) 0.73 M M 0.79 M (O. 62) 0.65 MAR 77 3.48 3.47 3.32 3.31 3.18 3.47 (3.43) 3.48 (3.05) 3.54 3.39 3.36 3.15 APR 77 3.31 ( 3. 27) 3.23 3.43 3.53 3.17 3.06 3.35 3.30 3.36 3.64 3.42 2.89 MAY 77 1.47 1.42 1.43 1.59 1.62 1.47 1.10 1. 73 (1. 76) 1.54 1.46 1. 59 1.10 JUN 77 4.68 ( 4. 54) 4.46 4.91 4.85 4.16 4.40 4.43 4.40 M 5.14 4.81 M JUL 77 3.20 (3.23) 3.11 2.94 3.08 2.97 2.15 ( 3. 27) 3.02 (2.57) 2;66 2.80 M AUG. 77 5.20 5.14 4.85 4.70 4.87 4.35 (4.39) 5.28 5.73 ( 4. 60) 4.52 4.73 4.08 SEP 77 6.02 6.02 5.64 5.63 5.98 6.19 5.61 6.02 5.47 5.70 5.72 6.26 (6.74) OCT 77 2.13 2.10 2.07 2.17 2.14 2.04 1.83 2.26 2.04 2.06 2.05 1.92 1. 85 NOV 77 (3.43) M (2.98) 3.22 3.05 3.04 2.68 (3.30) M 3.33 3.32 3.13 2.75 DEC 77 (3.16) M 2.51 2.96 2.93 3.01 2.85 3.27 M 2.88 (3.23) (2.54) 2.30

(\J (\J 0 Table 9.lB MONTHLY MEAN WIND SPEEDS AND DIRECTIONS P03A P07A 1977 hours of prevailing average  %  % hours of prevailing average  %  % data/hours direction speed onshore offshore data/hours direction speed onshore offshore in month (mph) in month (mph) JAN 530/744 WSW 10. 3 63.5 26.9 553/744 w 7.5 60.3 21. 3 FEB 577/672 SW 8.7 53.6 26.8 644/672 w 6.7 52.4 27.5 MAR 741/744 SW 8.4 37.3 47.5 742/744 SE 7.0 34.9 48.9 APR 720/720 SSW 7.2 37.9 34.4 720/720 SSE *5 .4 35.6 37.8 MAY 721/744 WSW 5.2 38.6 29.7 598/744 SSE 3.6 27.9 38.5 JUN 521/720 N 5.2 55.2 16.1 678/720 NW 3.5 43.6 20.1 JUL 694/744 SW 5~6 50.1 20.5 486/744 s 3.7 36.2 35.3 AUG 744/744 SSW 4.7 39.7 22.7 744/744 SSE 3.8 30.5 35.0 SEP 720/720 NW 4.9 38.3 30.3 719/720 WNW 3.8 34.3 40.7 OCT 744/744 s 6.7 38.4 34.3 744/744 SSE 5.0 35.0 38.7 NOV 634/720 SSE 8.0 35.5 50.7 718/720 SE 5.5 30.2 50.l DEC 504/744 SSW 8.9 37.4 42.7 310/744 ESE 5.9 32.1 46.7

  • l 1...-- - *._ ----

L _____

_j __ _ ; __ J
                                                                                                         ~---.-*

i

                                                                                                                   *    .J     J

Table 9.lC MONTHLY VISIBILITY PERCENTAGES P03A P07A hours of hours of 1977 operation 3 km 1 km 0.5 km operation 3 km 1 km 0.5 km JAN 150.8 17.1 8.5 1.1 599.5 24.2 8.4 2.3 FEB 270.0 3.0 0.2 <O.l 625.6 8.1 1.3 0.5 MAR 574.5 1. 5 1.0 0.7 744.0 2.4 0.7 0.3 APR 628.7 0~9 0.2 <0.1 717.6 2.6 0.3 0.1 MAY 744.0 5.1 0.9 0.3 730.7 2.4 0.2 <O.l JUN 692.7 4.1 0.4 0.1 662.3 5.5 0.7 0.2 JUL 744.0 5.7 1.9 1.4 735.4 1.8 0.7 0.4 AUG 672.9 7.3 1.4 0.5 744.0 8.3 1. 7 0.7 SEP 720.0 9.8 2.5 1.2 720.0 9.8 1.6 0.6 OCT 621.2 4.6 2.0 0.9 744.0 13.3 3.8 1.0 NOV 696.6 4.3 1.4 0.7 690.5 5.9 1.8 0.7 DEC 584.4 9.7 2.7 0.8 529.7 11.9 5.9 3.6 Note: Entries in this table are percent of total hours of operation for the given month with visibility equal to or less than the given distance. N N I-'

                                                                                  -------------------~

222 Table 9.lD: Monthly Averages of Daily Total Solar Radiation for Stations with Complete Data for Entire Month (Langleys/day) i I C03A ClOA P03A P07A 1977

                                                                    --1 January    (141)                                         134 February                                                (201)

March (276) (268) 258

                                                                   --]

April (401) 375 May 522 (517) 495 -1 June 473 July 488 August September October 267 207 (387) 252 200 387 239 190

                                                                 .1 -

I I November 112 *102 (103) December 72 90 67 i __ JI I I _J

APPENDIX B

E~*:JI~ The University of Michigan College of Engineering Space ReAearch Building DEPARTMENT OF ATMOSPHERIC & OCEANIC SCIENCE ~~-...r.....~--.._ 0 2455 Hayward

  • *]>~
    ~;::~'.~)~.::; Ann Arbor, Michigan 48109
                                              ~ . ._~.~:~*:;~~~:&~~J;;ttDj~~S~       313/ 764-3335 August 3, 1978 Report No. 320158-18-L Consumers Power Company 1945 W. Parnall Road Jackson, Michigan 49201 Attention:   Mr. Jawad S. Touma Meteorologist

Subject:

Quarterly Progress Letter Report for DRDA Contract Number 72-1221-KB2 11 Meterological Impact of Cooling Towers at the Palisades Nuclear Plant. 11

Dear Sir:

The following is a brief surmnary of work performed on subject contract for the period 1 April through 30 June . (1) Papers and reports (a) Most of the effort in the last quarter has been devoted to organizing and writing the text fo~ the. Sixth Annual Report*-- .A draft _o..f the text was near;ty completed. It *will be -submitted for your approval early in August and published in final form after it is reviewed and any suggested changes and/or additions are incorporated. (b) The Sixth Data Report (containing meteorological network data for 1977) was nearly completed and will also be submitted in final form*in.the next quarter. (2) Plume photographs and observations As determined by the presence of a plume in the time lapse photographs from the turbine building, the cooling towers began operation on 21 April 1978 and were in operation for approximately 55 days in the quarter. A delay in restarting the plume observation program-occurred, causing the first plume questionnaires not to be completed until 31 May. Of the 59 questionnaires received since then,

J.S. Touma August 3, 1978

  • (a) *15 (25%) reported observations of downwash and .

29 (49%) reported observations of plume fog on site. At least 5 of these were associated with the simultaneous occurrence of natural fog. (b) 9 reported plume lengths greater than 2 miles and 2 reported plumes longer than 4 miles. In the reportinq period, no fog associated with downwash was reported off-site. (31 .F~eld operations (a) Hygrotherrnographs and precipitation gages at all stations except for P03A and P07A were decommissioned on 1 and 2 April 1978. All hygrothermographs were returned to the University of Michigan for calibration checks in humidity _chambers. Work began on cleaning and lubricating their linkage mechanisms to insure optimum performance when the.units are returned to the field in late au.tumn for measurements through 31 March 1979.

  • (~)

(c) The wind vane potentiometer at station P03A burned out in February. Delays were experienced in obtaining a replacement, causing loss of wind data at that station until 13 April. Tl_le pyranometer used as a secondary standard was -instal:led--in -the field- for-comparison -with the units at stations-P03A and P07A. Cd) Plans were made to calibrate both wind systems in .the UM wind tunnel in July. (e) The table.below summarizes the percent possible data recorded at stations P03A and P07A in the last quarter April May June Solar Rad P03A 100 100 97 P07A 100 91 97 Wind Dir P03A 58 100 96 P07a 100 100 97 Wind Speed P 0 3A 58 100 97 P07A 100 *100 97

  • Visibility P03A P07A 100 0

100 95 94 73

                           .                  August 3, 1978 J.S. Touma (4)  Data processing and analysis (a)   Digitizing of all 1977 data was completed and temperature and humidity data through March 1978 were digitized.

(b) . Compute~*processing of digitized data was at various stages, but for most variables the many steps necessary to achieve the final accepted values were being completed on schedule. (c) The data analysis effort concentrated on the topics to be reported on in the Sixth Annual Report. (5) Pl.ans for the next quarter (a) The Sixth Annual Report and the Sixth Data Report will be completed and submitted. (b) Analysis of operational data obtained in 1977 will.begin. (c) Work will continue on a paper describing findings regarding lake breeze occurrences and behavior based on wind, temperature and humidity data from the Palisades network obtained from 1973 ) through 1977. Respectfully submitted, ltt~~&;rvv Project Director Distribution: Addressee (0+4) Dr. Harry Moses Dr. Fred Nurnberger Mr. Thomas Miskimen

l The University of Michi*:an

                                                                    *~*:.          College .of Engineering
                                                       ~ *-* ___...                Space Re..earch Builclin~

,DEPARTMENT OF ATMOSPHERIC & OCEANIC SCIENCE 0 2455 Hayward

                                            ~                                      Ann Arbor, Michigan 4!ll09 i

I L.-*---**~---*--- ---'~-'-~--; ---- 313/ 764-3335 November 9, 1978 Report No. 320158-19-L Consumers Power Company 1945 W. Parnall Road Jackson, Michigan 49201 Attention: Mr. Jawad s. Touma Meteorologist

Subject:

Quarterly Progress Letter Report for DRDA Contract Number 72-1221-KB2 "Meteorological Impact of Cooling Towers at the Palisades Nuclear Plant.**

Dear Sir:

The following is a brief summary of work performed on subject contract for the period 1 July through 30 September.

  • (1) Papers and reports (a) A draft of the text of the Sixth Annual Report was submitted in August for review, comments and suggestions. Several were received which were incorporated into the final text. The report in final form was submitted in October.

(b) The final version of the Sixth Data Report containing summaries and tabulations of 1977 data was nearly completed. A delay was en-countered because of questionable performance of the digitizer for some data. The end result was its return to the manufacturer for repair. Following its return in October these data were redigitized for final processing. (2) Plume observations and photographs As determined by time-lapse photographs of the plume and observations by security and engineering personnel, the cooling towers were in operation approxi-mately 60 days in the quarter. A total of 119 plume questionnaires were completed. Of the 119 questionnaires, a) 39 (33%) reported observations of plume downwash and 63 (53%) reported observations of plume fog.

  • Of the 63 cases, 21 were associated with the simultaneous occurrence of natural fog.

J.S. Touma November 9, 1978 b) 30 reported plume lengths exceeding 2 miles and 3 reported plume lengths longer than 4 miles. In observations reported at 0700 EDT, 15 July and on 14 August, the plume was causing fog and wet roads as far inland as the Blue Star Highway. Meteorological observations accompanying both reports showed that high humidities, patchy ground fog and light and variable winds were common to both. They are being studied in greater detail to determine if these effects would have occurred naturally. (3) Field Operations a) Wind systems from stations P03A and P07A were returned from the field, calibrated in the UM wind tunnel and returned to the field between 6 and 10 July. b) Calibrations of hygrothermographs were carried out in preparation for their return to field operation at all stations in early December . c) The table below summarizes the percent possible data recorded at stations P03A and P07A in the last quarter. July August September Solar Rad P03A 100 100 100 P07A 100 100 100 Wind Dir P03A 86 100 100 P07A 87 100 100 Wind Speed P03A 78 100 100 P07A 87 99 100 Visibility P03A 100 63 32 P07A 100 100 100 (4) Data processing and analysis a) The main effort in data processing was devoted to the limited redigitizing and final computer processing of 1977 data for the Sixth Data Report. Data for the month of December are nearly completed. With the return of the repaired digitizer, processing of 1978 data has resumed.

J.S. Touma November 9, 1978

  • b) Distributions of humidity by season for operational and non-operational conditions as well as for onshore and offshore winds were plotted and are being analyzed. In addition, several cases of plume downwash with onshore winds are being analyzed in terms of possible humidity increases downwind.

c) Occurrences of true lake breezes for 1978 were determined through August, based on analysis of data from station P03A, hourly observations for Benton Harbor Airport and synoptic weather maps. (5) Plans for the next quarter a) The Sixth Data Report will be sub~itted. b) Complete field operations at all stations will be resumed. c) Analysis of 1977 operational data will continue

  • d) Processing of 1978 data will continue.

It is hoped that data from the Palisades meteoro-logical tower may be made available for specific case studies. It is expected that such data could provide valuable information for interpreting the behavior as well as surface effects of the cooling tower plume. Respecfully sumbitted,

                         ~~z~

Project Director Distribution: Addressee (0+4) Dr. Harry Moses Dr. Fred Nurnberger Mr. Thomas Miskimen

The Lni"cr,ir~* of Miehi::<:.ir. (..<,llc:!e of En:!ineerin::<

                                                                  ~pace Resear<'.h Building DEPARTMENT OF ATMOSPHERIC & OCEA.1\IC SCIENCE*

0 2455 Haywnrd Ann Arbor, Michii:an 48109 313/ i64-3335 February 6, 1979 Report No. 320158-20-L Consumers Power Company 1945 W. Parnall Road Jackson, Michigan 49201 Attention: Mr. Jawad s. Touma Meteorologist

Subject:

Quarterly Progress Letter Report for DRDA Contract Number 72-1221-KB2 "Meteorological* Impact of Cooling Towers at the Palisades Nuclear Plant."

Dear Sir:

The following is a brief summary of work performed on subject contract for the period 1 October through 31 December .

1) Papers and reports The Sixth Data Report was submitted. It con-sisted of 222 pages of tabulations and summaries of 1977 temperature, humidity and precipitation data for all 13 network stations and wind, solar radia-tion and visibility data for the 2 main stations.

Monthly wind roses for the two main stations were also included.

2) Plume observations and photographs As determined by the presence of a plume in the time lapse photographs from the turbine building camera, the cooling towers were in operation for approximately 63 days in the quarter. A total of 71 questionnaires was completed by security and engineering personnel. Of the 71 question-naires, a) 36 (51%) reported observations of plume downwash and 55 (78%) reported observations of plume fog on site. Of the 55 cases, 25 were associated with the natural occurrence of fog. The occur-rences of downwash and plume fog are much higher than those reported in the su::nmer quarter and are du2 to higher average wind speeds and humidi-
  • ties observed in the winter quarter .

J.S. Touma February 6, 1979 b) 25 questionnaires reported plume lengths exceeding 2 miles and 5 reported plumes longer than 4 miles, both of which are larger than those reported in the summer quarter. c) The first icing caused by the plume was reported on 21 December. Although 2 addi-tional reports of icing were received in the quarter, there was no prolonged period of low temperatures to cause signi-ficant accumulations.

3) Field operations a) Equipment was prepared and calibrated for the resumption of measurements at all stations.

b) By 14 December hygrothermographs and precipi-tation gages were placed into operation at all stations. c) The table below summarizes the percent possible data recorded at* stations P03A and P07A in the last quarter . October November December Solar Rad P03A 87 100 100 P07A 95 91 100 Wind Dir P03A 87 100 77 P07A 100 97 80 Wind Speed P03A 87 100 95 P07A 100 81 86 Visibility P03A 87 100 94 P07A 100 100 90

4) Data Processing and analysis a) Digitizing and processing 1978 data continued throughout the quarter. Data for several variables were digitized through August 1978.

b) Analysis of temperature and humidity data to determine true lake breeze occurrences and characteristics was completed for 1978. The results remain to be corroborated by an analysis of wind direction data for stations P03A and P07A, but they indicate that about 43 true lake breezes occurred between March and December.

J.S. Touma February 6, 1979 The largest previous number that had occurred since the project began was 35 in 1974. c) Work continued on the other topics of analysis listed in Quarterly Report 320158-19-L.

5) Administrative A meeting was held with Mr. Jawad Touma and Dr.

John Rochow of Consumers Power Company to discuss the final year of work on the project. As a result of the discussion, a proposal was subsequently drafted outlining analysis topics and schedules for reporting of results for the contract year 1 April 1979 - 31 March 1980.

6) Plans for the next quarter a) Data collection, processing and analysis will continue. Data collection will end on about 26, March, at which time equipment will begin to be removed from the field, a task expected to take about 3 days .

b) A tentative outline for the text of the final report will be completed. Respectfully submitted, M11:l-¢)1ff71.,,t;?./l/ Edward Ryznar/ p Project Director Distribution: Addressee (0+4) Dr. Harry Moses Dr. Fred Nurnberger Mr. Thomas Miskimen

 \

0

320158 Sixth Annual Report - An Investigation of the Meteorological Impact of Mechanical-Draft Cooling Towers at the Palisades Nuclear Plant [ ' by EDWA:RD RYZNAR DENNIS G. BAKER 1:" MICHAEL R. WEBER I - DENNIS F. KAHLBAUM August 1978 r - iI .. I - Under contract with~ Consumers Power Company

- Jackson, Michigan I

I . I l-

  • College of Engineering Department of Atmospheric and Oceanic Science Ii. -

THE UNIVERSITY OF MICHIGAN COLLEGE OF ENGINEERING Department of Atmospheric and Oceanic Science Sixth Annual Report AN INVESTIGATION OF THE METEOROLOGICAL IMPACT OF MECHANICAL-DRAFT COOLING TOWERS AT THE PALISADES NUCLEAR PLANT by \ .. Edward Ry.znar.

  • i*

Dennis G. Baker Michael R. Weber Dennis F. Kahlbaum DRDA Project 320158 under contract with: CONSUMERS POWER COMPANY JACKSON, MICHIGAN administered through: The Division of Research Development and Administration

  • August 1978

PREFACE This is the sixth annual report on the investigation of the -1 I meteorological impact of mechanical-draft cooling towers at the Palisades Nuclear Plant. It elaborates on aspects of the work discussed briefly in quarterly letter reports issued in the past project year which ended 31 March 1978. The report also supplements five annual reports submitted in May 1973, \ I J June 1974, June 1975, May 1976 and June 1977, respectively. The first report describes the meteorological network and the equipment installed. The second interprets work by others on the meteorological effects of cooling towers and discusses natural meteorological variability near Lake Michigan, data processing procedures and hygrothermograph calibration methods. The third discusses results of improving and applying a cooling tower plume model to compute fog occurrences and reductions to visibility, the results *:~ _/ of lake breeze analyses and preparations for plume observations. The fourth discusses analyses of preoperational data and plume observations and photo-graphs obtained in 1975. The fifth describes plume observations and effects

                                                                                  ,_  )

on solar radiation using 1977 data; precipitation and temperature fields; occurrences and behavior of true lake breezes and advection-radiation fog; and occurrences of apple scab infection conditions, including a preliminary assessment of po~sible cooling tower effects. __ j Meteorological data from the 13-station network since 1972 are / I published in five data reports. They include summaries and tabulations of temperature, humidity, precipitation, wind velocity, visibility and solar radiation data through 1976. The authors would like to thank a number of people who helped in the work in the past year. Those who made important contributions to data processin~ ii

are Robert Kessler, Gary Rizzo, Michael St.Peter, Dennis Hodges, Randy .* Bliss, Will Beaton and Tom Tharp. Michael St.Peter also capably handled much of the equipment calibration and repair ~nd Donald Pe~rson maintained the collection of data and monitored equipment performance twice weekly in the field. Personnel at the Palisades Nuclear Plant also deserve special thanks. r *~ These include Larry Kenaga, for overseeing the plume observation program, Tim McBride, for maintaining the Turbine Building time lapse system, and the security and engineering personnel who took time to observe the plume and complete 612 questionnaires in about 246 days of cooling tower operation. Our special appreciation is expressed to Dr. Harry Moses of the U.S. Department of Energy for providing valuable consultation in tasks involving data processing, analysis and interpretation. His constructive ideas, suggestions, and inspiration on his monthly visits were always welcome .

  • he~p Ms. Barbara Walunas typed this and other reports, memoranda, and correspondence and capably handled many administrative details.

is sincerely appreciated. Her I.

  • iii

ABSTRACT The sixth year of work on a study of the meteorological impact of mechanical-draft cooling towers at the Palisades Nuclear Plant is described.  ! .,\ I It consists of analyses and comparisons of results using both pre-operational I and operational network data and climatological data, summaries of observa-tions of cooling tower plume behavior and effects for the 1976-77 operational

                                                                                .   \

I, period and brief descriptions of the status of netwo*rk data collection and J equipment performance in the 1976-77 project year. Results of each of these efforts are presented and discussed. (

                                                                                  .I
                                                                               ,   I I
                                                                              ._)

iv

CONTENTS I ." PREFACE ABSTRACT LIST OF FIGURES page ii iv vi LIST OF TABLES viii I. INTRODUCTION. 1 COOLING TOWER PLUME EFFECTS Edward Ryznar II. PLUME OBSERVATIONS AND PHOTOGRAPHS' 10 III. PLUME EFFECTS ON FOG 17 i IV. PLUME EFFECTS ON TOTAL SOLAR RADIATION 30

i. --

ANALYSES OF NETWORK DATA V. OCCURRENCES OF APPLE SCAB INFECTION CONDITIONS - Edward Ryznar 34 VI. TRUE LAKE BREEZE OCCURRENCES AND CHARACTERISTICS - Edward Ryznar 39 VI I. VIII. SEASONAL VARIATIONS IN AIR TEMPERATURE: A COMPARISON OF OPERATIONAL AND PREOPERATIONAL DATA - Michael R. Weber SEASONAL VARIATIONS IN RELATIVE HUMIDITY AND DEW P'JINT: A COMPARISON OF OPERATIONAL AND PREOPERATIONAL DATA - 48 Michael R. Weber 61 i' IX. PRECIPITATION IN 1976 COMPARED WITH CLIMATOLOGICAL NORMALS - Dennis F. Kahlbaum 75 X. A PRELIMINARY ANALYSIS OF OPERATIONAL AND NON-OPERATIONAL PRECIPITATION DATA THROUGH 1976 - Dennis F. Kahlbaum 86

  ,/

XI. DIURNAL VARIABILITY OF PRECIPITATION - Dennis G. Baker 94 REFERENCES 101 APPENDIX A. Network Data Collection 103 APPENDIX B. Project Publications and Reports 105

   *                                                -v

LIST OF FIGURES page

l. l Aerial photograph of Palisades cooling towers prior to operation. 2 1.2 Aerial photograph of Palisades cooling towers during operation on 23 December 1977. 3 1.3 Locations of meteorological stations in the Palisades and Cook networks. 6 l .4 Locations of meteorological stations in the Palisades network. 7 2.1 Example of completed plume questionnaire. I.

11 ' .J 3.1 Pressure ratio contours around mechanical draft cooling towers. 18 4.1 Recording of global solar radiation at P03A for 7 March 1977. 31

                                                                               ]

4.2 Recording of global solar radiation at P03A for l March 1977. 33 7.1 Diurnal variation of the temperature difference between coastal and inland stations for spring. 54 7.2 Diurnal variation of the temperature difference between coastal and inland stations for summer. 57 7.3 Diurnal variation of the temperature difference between coastal and inland stations for*autumn. 59 8.1 Diurnal variation of the ~el~tive humidity difference between coastal and inland stations for spring. 63 8.2 Diurnal variation of the dew point difference between coastal i: I and inland stations for spring. 64 8.3 Diarnal variation of the relative humidity difference between coastal and inland stations for summer. 66 8.4 Diurnal variation of the dew point difference between coastal and inland stations for summer. 67 8.5 Diurnal variation of the relative humidity difference between coastal and inland stations for autumn. 69 8.6 Diurnal variation of the dew point difference between coastal and inland stations for autumn. 70 9.1 rJetwork.atid *climatolbg1caJ :stations used in precipitation analysis. 76 9.2 Isohyets for winter 1975-76 and a climatological winter. 78 vi

LIST OF FIGURES (cont.) page 9.3 Isohyets for spring 1976 and a climatological spring. 79 9.4 Isohyets for summer 1976 and a climatological summer. 81 9.5 Isohyets for autumn 1976 and a climatological autumn. 82 9.6 Isohyets for the year 1976 and a climatological year. 84

  • i i 10. l Percent probability that winter mean daily precipitation differs
 \

between non-operational and operational periods. 89 1o.2 Percent probability that spring mean daily precipitation differs between non-operational and operational periods. 90

 ,..      10.3  Percent probability that summer mean daily precipitation differs
\      _i between non-opera ti ona 1 and operationa 1 periods.               92
 , .. 10.4  Percent probability that autumn mean daily precipitation differs between non-operational and operational periods.                   93
11. 1 Average hourly precipitation. 96
  • vii

I_,)

                                                                                   .-)

1,

                                                                                         '.)

LIST OF TABLES page 1.1 2.1 Network instrumentation and calibration schedules. Summary of plume questionnaire reports. 8 14

                                                                                       .l 3.1 Visibility data for P03A, PO?A and C03A for 1975 and 1976.            23   :" !

3.2 Contingency table for hours of advection-radiation fog for P03A and P07A. 25 .---.., I 3~3 Ratios of hours of fog at P03A and P07A. 27 5.1 Occurrences of apple scab infection conditions. 37 6.1 Occurrences of true lake breezes for 1973 through 1977. 40 6.2 Comparison of climatological data and 1977 data for Muskegon County Airport. 41 6.3 Number of true lake breezes reaching various distances inland. 43 6.4 Values of r 55 -r 9 for true lake breezes. 46 6.5 Changes in r 55 -T 9 with passage and retreat of true lake breezes. 46 7.1 Computations of increases in temperature due to cooling tower operation. 49 8.1 Average magnitudes of statistically significant increases in temperature, relative humidity and dew point near the Palisades Nuclear Plant. 72 8.2 Average magnitudes of statistically significant increases in temperature, relative humidity and dew point near the Palisades . ,/ Nuclear Plant. 72 8.3 Computations of increases in relative humidity due to cooling tower operation. 74 9.1 Total precipitation and departure from normal for the Palisades network and South Haven. 85 11.1 Harmonic analysis of average hourly precipitation. 97 I

                                                                                      -    I A.l Percent possible data recorded in 1977-78.                           104 viii

I. INTRODUCTION

Background

The investigation was initiated in 1971 by a request from the NOAA State Climatologist for Michigan in cooperation with Consumers Power Company and Indiana & Michigan Power Company for a study of meteorological effects of cooling systems at two nuclear power plants in southwestern Lower Michigan. The investigation was to be concerned with Consumers Power Company's Palisades Nuclear Plant, which was to use mechanical-draft cooling towers, and Indiana & Michigan Power Company's Donald C. Cook Nuclear Plant, which ) was to use a once-through cooling system. Water from Lake Michig~n was to be used in the cooling systems, both of which were under construction at the time. plume, injected directly into the atmosphere at a height of about 20 meters. If the plant has an average generator load at its full capacity of about 700 megawatts, a maximum amount of cooling is required and as many as 12,000 gallons per minute may enter the atmosphere directly (USAEC, 1972). Aerial photographs showing the cooling towers prior to and during their operation are given in Fig. 1.1 and 1 .2. In the operation of the once-through system at the Cook Nuclear.Plant, water is taken from Lake Michigan at a projected rate of about l ,645,000 gallons per minute (USAEC, 1973). It becomes heated in cooling the condensers,

      ~T~~~;'.~7lli~i1if~1~~;~~~r~"'!"l~~~~
          .~--'.:..;:J.1~-~'.">!~~.',,,;<'~'.S.~.2:r~*;:;;;,;;

Figure 1.1 Aerial photograph of Palisades cooling towers prior to operation~ L_ i..._ __

                                             **                *-~--! *~--j ---J
                                                                                 ** -----/

_ _J

w Fig. 1. 2 Aerial photograph of the Palisades cooling towers during operation on 23 December 1977.

4 and the heated water is returned to Lake Michigan. An area of warm water, or thermal plume, spreads out from the discharge point and heat and moisture are lost to the atmosphere by conductive, radiative and turbulent transfer processes as the air passes over it. According to Carson (1976) the energy flux per unit area into the atmosphere with a lake cooling method is about 3 orders of magnitude less than the energy flux from the top of a cooling tower. The planning of the study took into account the fact that even though the meteorological effects of the two methods of cooling were expected to be different in degree, a study of the effects of one system could supplement the other in many ways, since both nuclear plants were located on the Lake Michigan shoreline and separated by a distance of about 33 km. The two

                                          /

investigations were set up as similar 5-year projects, therefore, and work on them began in April, 1972, when orders for equipment were placed and location~ for meteorological stations were chosen.

                                                                                .   )

Purpose and Approach ( The goal of the cooling tower investigation is to determine (1) if .-' they significantly affect meteorological conditions inland from the nuclear certain conditions, increase atmospheric moisture near the ground for prolonged periods and, in addition, cause or enhance not only fog and/or icing at the surface, but also cloud growth and precipitation. These effects could impact spraying operations for disease prevention in the fruit belt inland from the cooling towers, for example, and the trafficability of the Interstate 196 Freeway located about 0.8 km from them.

5 An observational approach was taken, therefore, which was designed to provide basic informat1on on possible cooling tower effects on fog, solar radiation, cloudiness, precipitation, temperature, humidity and to the extent possible, icing. The nearest National Weather Service Station which could provide adequate and somewhat representative information on most

\_ -
          ' of these variables, however,. was at Muskegon County Airport located about 112 km north of Palisades and out of range of cooling tower influence.

To obtain information closer to the towers a special network of 13 meteoro-

  '     I    logical stations extending from near the tower site to about 19 km inland l

was established (Ryznar, et.al., 1976). A map showing locations of the stations comprising both the Palisades and Cook networks and stations having other types of meteorological data is shown in Fig. 1.. 3. Most of the open-circled stations have valuable long-term temperature and precipitation data that have been used to determine natural variability. Of particular relevance to the Palisades study is the station at South Haven, for example, which is only about 9 km north of the network and has over 40 years of data representative of near-shore conditions. A map showing locations of the Palisades network stations on a larger l_ - scale is given in Fig. 1 .4. Temperature, relative humidity and precipitation are measured at all stations. At the two main stations, #3 and #7 (called P03A and P07A in this report), wind velocity, visibility, and global solar radiation, consisting of direct plus diffuse solar on a horizontal surface are also measured. The network instrumentation and calibration schedules are given in Table 1 .1. I Station P03A is located in a flat field about 1 km ESE of the cooling towers and near the Interstate 196 Freeway. Time lapse photographs of the plume are made from this station as well as from the roof of the turbine building on-site. Together with measurements of visibility and the other

6

                                                       *9                                                          'l
                                                *B 810  cu    *5
                                                                     *6
                                                                                       ~ *7 "BANGOR l  /
                                                *11    *12
                                                                 *13 OCOLOMA 0 WATERVLIET e

0 0 Ii)

                                                                                    '8)

STATION TYPES REGULAR STATION . MAIN STATION* NWS CO-OPERATIVE MICHIGAN AGRICULTURE FAA NUCLEAR POWER PLANT X WATER INTAKE TEMPERATURE OSODUS

                                                                                                                   ; f
                                                                                                                    ....\

OEAU CLAIRE I

                  *7                                                             ODOWAGIAC                             Ii
                                 *11
      *6              0 BERRIEN SPRINGS ea
                    *10
         *9               *12 Miles 0                    5                       10 OGLENDORA a                  .a.a                     16J Kilonreters Fig. 1.3 Locations of meteorological stations in the Palisades and Cook networks.
  • _____ \.

c*-_" ____ ; N r PLANT SITE 30th AVE. LAKE MICHIGAN ..COVERT

                                      © 11
                                                    © 12 M,

1.40 0 13 MILES Figure 1.4 Locations of meteorological stations in the Palisades network.

8 Table 1. 1: Network Instrumentation and calibration schedule Height above Months Instrument and ground Date between Calib. Variable manufacturer (meters) installed c.alib. technique Precipitation Weighing gauge 1 10/72 6 Static Belfort Inst. Co. weights Temperature Hygrothermograph 1.5 2/73 6 Calib. Rel. Hum. Model 5-594 chamber Belfort Inst. Co. Wind Speed Gill 3-cup 3 2/73 6 Wind Anemometer tunnel Model 12101 R.M. Young Co. Wind Direction Wind Vane 3 2/73 6 Circular Model 104 linearity WeatherMeasure Corp. V~sibility Visiometer Model 1580 Meteorology 1.5 10/72 (P-3) 3/73 (C.-3) 5/73 12-18

                                                                       .(

Manufact._ J

                                                                           .__ )

Research Inc. (P-7)

                                                                            -*./

Solar Rad. Pyranometer 1 10/72 12 Comparison (P-3) with . " Model R411 12/72 standard __,( (C-3) WeatherMeasure Corp. 3/73 (P-7) . 12/72 _j (C-10) i I L_

9 variables, the time lapse photographs are especially significant for determining if cooling tower downwash occurs, its downwind extent and its possible effects on freeway trafficability. Station P07A has the same equipment as P03A except for the time lapse camera,' but because it is about 19 km inland, it is assumed to be out of range of direct cooling tower effects. In this way, its measurements act as "control station 11 measurements with

,i
\       which those made at station P03A can be compared.

The nuclear plant began test operations on April 1975 and gradually increased to 80% load later that month. Outages lasting from a few hours to a few days were experienced, but the plant remained on line until 20 December 1975, when it was shut down for about five months for refueling and steam generator eddy current testing. It resumed continuous operation on 18 May 1976 and except for occasional outages lasting from several hours to several days, it maintained an average ganerator load of about 700 .i MW(e) until 6 January 1978 when it was shut down for refueling. As determined by a plume in the photographs from the turbine building camera, the cooling towers resumed operation 21 April 1978. In keeping with the original plan of the investigation, the final I . evaluation of the meteorological impact of the cooling towers will be based on (1) an analysis and statistical comparison of all pre-operational and operational meteorological data and (2) case studies, observations, and photographs of plume behavior and effects. As with past annual reports, the present report is structured according to this plan in that it contains analyses of both pre-operational and operational network data and a summary of plume observations made in the operational period between 1 April 1977 and 5 January 1978 .

10 II. PLUME OBSERVATIONS AND PHOTOGRAPHS by Edward Ryznar Throughout the past year, observations of plume behavior

                                                                                   .I  --*1
                                                                                    .***i and effects were made both visually and photographically. Most of the
                                                                                     -*-r visual observations were made on site within about 300 meters of the cooling towers by plant security and engineering personnel. They made observations of both plume behavior, such as downwash and length of plume and plume effects, such as drift, icing and   fog*~nd  entered their observations onto questionnaires. In the plume  photograph~  program, time lapse photographs were taken.simultaneously from station P03A with a camera facing lakeward in the direction of the cooling towers and from the roof of the turbine building with a camera facing inland. Their locations are shown in Fig. 1 .1.

Results of the two programs for the operational periods of 1977-78 are discussed below. From the beginning of the 1977-78 contract year on 1 April 1977 until 5 January when the nuclear plant was taken off line for refueling, \ I

                                                                                     .      I
                                                                                        - _)

the cooling towers were in operation for about 246 days as determined by a visible plume in the time lapse photographs from the turbine building. J In that time period a total of 612 questionnaires was completed. About one quarter of these were *nighttime observations of the plume and its effects. An example of a completed questionnaire is shown in Fig. 2.1. It was completed by a member of the security staff at 0615 EST on 29 December - _f 1977. Information derivable from the questionnaire is that

1) it was cloudy and snowing;
2) the plume was moving north and ended on site;

Fig. 2.1 11 Cooling Tower Plume Questionnaire (Revised 5/18/76) TI n11 Pr Name (i. - ~* l lf..Lt1~ Date ;y./z-c;J77* Time7Cb/..5-

                                                           /    I
1. In the list of types of weather given below, encircle

~* I

  . ~.

one or more which best describe the general weather during your observation of the plume. r '. clear partly cloudy

                              @i        fog    rain   thunderstorm~r7ezing
                                                                        *~ain           *
2. Was there a visible plume?~ No
3. If you passed near the end of it, how far from the power plant would you estimate that it ended?
            ~                site to 2 miles        2-4 miles          more than 4 miles
4. If it ended at a location on the map, place a © at that location.
5. Was the wind strong enough to bring the plume to the ground?
            <§)

No

6. If it was, place a (6) on the map where you saw the plume contacting the groun'cr'.
!     \  7. Did you pass through the   plume?~           No If you did, place a   (j) at that location.
8. Did you pass under the plu...~e? ~ No If you did, place an @ at that location.
9. If you passed through, u~or n.ear the plume, did you observe drizzle from it?~ No
10. If you observed fog, do you think it was natural fog or fog caused by the plume?

Natural fo'=! D plume fog IZJ bothD If the fog was caused by the plume, place a q]} at that location .

12

11. Did you observe sn~lli_ng from the plume only and not from clouds? Yes ~

If you did, place an -~ at that location.

12. Did you obs~<;.i\'g on objects in the vicinity of the plume? es No *
13. \

If you observed icing caused by the plume, check one or \ ) more of the types of surfaces on which you observed it.

   ~*      trees and other vegetation
   ~~~cads
   ~       utility lines and towers                              --~
d. others, please list: )
                                                                ')
                                                                 .l
14. Place a ~ on the map where you observed icing.
15. If you drove to or from the plant, did you rnotice changes in road condition~~

Yes~ If yes, please briefly describe what they were and where.

                                                                     )

i

                                                                   .J

( _}

16. On the map, please sketch the plume as you saw it.
                                                                     \

1* J Thanks for your help! I _j

13 ll t.'

)

(

14

3) downwash to ground level was occurring which obscured visibilities at distances up to 200 meters north of the cooling towers and was accompanied by drift and freezing ~rift;
4) the snow observed was natural snow and not caused by the plume; I
                                                                                       . I
5) icing was occurring on most surfaces downwind, but was concentrated in the area of drift near the towers and
6) other than for the icY roads on site in the vicinity of the plume, no changes in road conditions were observed which were attributable to icing caused by the plume.

Meteorological conditions which accompanied this observation were that 1ight snow was occurring along nearly the entire eastern shore .of Lake Michigan, the temperature was -7°C, the dew point was -l0°C and the wind velocity was from the south at 5 meters per second. A summary of the 612 questionnairesaccording to the number that reported observations of downwash, plume fog and icing and plume length is given in Table 2.1. The three time periods listed are the first three* quarters of the year beginning 1 April. The third quarter is extended to include 5 January 1978, the last day of cooling tower operation - ) prior to plant refueling. .. -' I ( Table 2. 1 ...! _SumiTiaryofthe *p1ume Questionnare Reports*

                                       #Down--    #Plume                   #Pl urile Time Period          # Quest.         wash        fog         #Icing     > 2 miles 4/1 /77-6/30/77 .      271          73(27%)     68(25%)          6           34 7/1 /77-9/30/77        161          47(29%)     57(35%)          0           18        . I I

10/1 /77-1 /5/78 180 95{53%) 113{ 63%) 38 67 Total 612 215(35%) 237(39%) 44 119

15 Features of Table 2J are that

/'    -.       1)   The percentage of questionnaires which reported affirmative answers to the question "did the plume contact the ground" approximately doubled from summer to winter. In summer, approximately 28% reported observations of downwash compared to 53% in winter, which is in keeping with the increase in average wind speeds from summer to winter.
2) The percentage of questionnaires which reported affirmative answers I

\ . to the question 11 if you observed fog, do you think it was due to the plume 11 also nearly doubled from summer when it was near 30%,to winter when it was near 60%. Of the 237 reports of plume fog,87, or 37% of them, also had

  • ~ natural fog occurring at the time of the observation.

No cases of plume.fog were observed off-site, but several cases of drift off-site were observed. One observation made at 0800 EDT on 7

            **-----~--------

July reported drift under the plume about 1200 meters southeast oi the cool}ng towers on the Blue Star Highway. No unusual meteorological (" I conditions were present which could account for the large downwind transport i of drift. There were high broken clouds, the relative humidity was 87%, the temperature ~I/as 76°F and the wind velocity at station P03A was from the NNW at 5 meters per second.

3) Icing due to the cooling tower plume was last reported in the spring of 1977 on 9 April and first reported in the autumn on 12 November.

Of the 103 questionnaires received between 12 November 1977 and 5 January 1978, 38, or 31% of them reported icing on-site. On 20-23 December there were several reports of freezing,drift at various locations on the access road on site which caused slippery driving conditions in those areas. As was observed in the wintertime data obtained previously, the

  • icing taking place near the towers was primarily the dense type of glaze

16 ice caused by freezing drift. As the distance from the towers increased, the type of icing changed from glaze ice to a less dense type of rime ice caused by freezing of the plume rather than of the larg~r droplets comprising drift. No cases of icing caused by the plume were reported

                                                                                 ,- *1 off-site.                                                                          J
4) The number of reports of the plume length exceeding 2 miles varied with season. Of the total of 119 reports of long plume lengths, 29% occurred in spring, 15% in summer and 56% in autumn to winter. This is a result of the fact that in the cold seasons not only do the lower average temperatures cause more rapid and complete condensation of the plume, but also the higher average relative humidities retard its evaporation.
  • 1

( (

17 tr I. PLUME EFFECTS ON FOG Aerodynamic Downwash by Edward Ryznar Fog caused by aerodynamic downwash of the cooling tower plume is a common occurrence near the towers. In conditions with wind speeds exceeding about 3-4 m sec -1, the plume is swept to the ground immediately downwind of the towers and in high wind speeds and relative I humidities exceeding about 70%, it may remain in contact with

)           the ground for several hundred meters. As long as it remains in l ..

contact with the ground and is dense enough to obstruct horizontal r\ visibility, the plume is actually fog. In spite of its being at ground level, however, the plume retains its positive buoyancy and at some distance downwind it lifts off the ground either in its

    • condensed visible phase or, if enough evaporation and diffusion have taken place, in its invisible vapor phase.

Downwash *results from the distribution of pressure around the r\ tower structure -induced by the wind field. Distributions of pressure I ratios for three wind directions for a structure with geometrical proportions similar to the cooling towers are shown in Fig, 3.1. The figure was taken from a report by Ovard and Reisman for the i Ecodyne Cooling Products Division, Santa Rosa, California. The numbered contours are dimensionless pressure ratios (P.R.) obtained from the equation P.R. = p(v~/2) where ~p = wind-induced ~ressure difference across the towers,

  • P =air density, and v0 =wind velccity arriving at cooling towers .

18

                                                                  .; l   )
                         - 0.61 TO -0.69
      - -oa~
                ~*
                       /.-0.7  -0.6~
                                                        '--::-0.8 r  ....

__,/ \ tvo ~~ (~~ ~I I i

                                                                        .(
                                                                  *1,  .
                                                                      .J
                                                                    ,.,/

( __ )

                                                                         \
                                             ~                           r .
                                          -0.1                           I
                                             )                         ,J f
                                        -0.1
                                                    ) .   -~~ 3 l               -0.24
                                             \
                                          -0.1 J

Fig. 3.1 Pressure ratio contours around mechanical-draft cooling towers.

19 The pressure ratio can be either positive, implying a region ,. of upward moving air, or negative, which is a region of downward moving air. In Fig.3.1, the walls of the structure are shown folded out, with the long wall sections representing the intake louvers of the cooling towers. The longitudinal axis of the towers is the horizontal axis. The distribution of pressure ratios for a wind normal to the longitudinal axis is shown at the top of Fig.3.1. Because the Palisades towers are oriented east-west, similar distributions but with opposite signs are produced by north or south winds. The largest positive ratios are on the upwind side. The largest negative ratios, implying descending motion are on top and on the downwind side. The distribution corresponding to a wind direction 45° from

  • the orientation of the longitudinal axis or, for the Palisades towers, for a southwest wind, is shown in the middle of Fig.3.1. The large negative ratios which.occur along the entire top of the main tower structure as well as on its leeward (north) side, indicate a strong tendency for descending motion there. Corresponding distributions for northwest, northeast, and southeast winds can also be deduced.

The distribution corresponding to a wind direction parallel to the longitudinal axis or, for the Palisades towers, to an east or west wind, is shown at the bottom of Fig. 3.1. The smallest average negative ratios are produced by this wind direction, indicating that for the Palisades towers, if the wind is from the east or west, a higher speed than for any other direction is required for downwash to occur.

.*       rn addition, for these wind directions, plumes from individual cells
       ' combine to form one large plume and  ther~by enhance plume rise by a cumulative buoyancy effect.

20 Advection - radiation fog In addition to direct plume effects on fog near the towers caused by downwash, other more subtle. effects on fog at larger distances are possible and are being studied. For example, according to the I

                                                                               .j results using the Gaussian plume model, increases of relative humidity up to 15 percent can be caused by the plume at the location of station P03A. These may lead to an increase in occurrences of the advection-radiation type of fog. Ryznar et . .91., (1977) compared occurrences of this type of fog at stations P03A and P07A using 1973-74 (preoperational) and 1975 (operational) data and found no

( I effect attributable to the cooling towers. The work described below .. l extends the analysis to include 1976 data. A limited comparison is also made with data obtained from the visiometer within about 1 km of the Donald C. Cook nuclear plant located about 40 km south of the Palisades plant. lI Conditions for formation Advection-radiation fog (hereafter referred .J to as a-r fog) is caused by the advection onshore of m~ist lake air in daytime followed by nocturnal cooling of the air to saturation i by radiative heat losses from the land surface. As discussed in . . I detail in the Fourth Annual Report, meteorological conditions conducive i I to its formation on a given night are (1) a high relative humidity (>70%) .J in the evening, (2) a light wind speed (l-3 mph) and (3) a cloudless or nearly cloudless sky (scattered cirrus at most).

  • The reason that a thermal plume such as that from the once-through system at the Cook Nuclear Plant may affect fog formation is that if it is warmer than the air passing over it, turbulent transfer processes between water and air are enhanced by the unstable vertical temperature gradient, .resulting in an increased transfer of heat and moisture
  • 21
  • from water to air. The greater the gradient, the greater the transfer, as illustrated by steam fog over a thermal plume in wintertime. The air with greater humidity can move inland either with lake breezes (which are most frequent in the warm months when a-r fog is most frequent) or with an onshore gradient wind, fulfilling condition (1) above.

Near Lake Michigan, conditions favorable for a-r fog formation by natural processes occur most frequently in June through October. They are infrequent in the other months because of higher average wind speeds

\.

and greater cloudiness. In the cold months, for example, considered ,.,, .. here to include November through February, fogs are associated directly with various types of fronts and/or the advection of very cold air following a cold frontal passage. In the latter case fog, clouds and snow commonly occur together and may extend far inland .

  • Measurements and results. All obstructions to visibility such as fog, rain, haze and any combinations have been measured with visiometer systems which provide a measure of sensor-equivalent visibility. In the processing of visiometer data, each reduction in visibility to 3 km or less is assigned a cause which is determined from daytime hourly weather observations at Benton Harbor Airport, measurements of other meteorological variables from the 13-station network and weather maps. For those visibility reductions attributable to fog, it was possible to determine whether the fog was caused by frontal activity, advective processes, radiation losses or some combination.

Only cases of a-r fog are treated quantitatively in the discussion below .

22 A tabulation of the percent of recorded data for visibilities equal to or less than 3 km by month for 1975 and 1976 is given in Table lJ for station C03A in the Cook network and stations P03A and P07A in the Palisades network. Visibility reductions due to a-r fog only are shown on the left and those due to all causes are shown on the right. The numbers in parentheses are the percent possible l .! data recorded. A double asterisk by a month means that at least

                                                                             ~

85% of the month had acceptable data at all stations. \ I Comparisons among stations. A comparison of a-r fog occurrences among the three stations shows marked differences. For the warm months of ( J both 1975 and 1976, station P03A had the most a-rfog, followed by P07A and then C03A. A similar difference qetween P03A, which is 1.3 km inland, and P07A which is 19 .km inland, also occurred in prior years arid was described in the Fifth Annual Report. The difference was attributed mainly to an average increase in temperature and an J accompanying decrease in relative humidity with distance inland. Such a condition occurs frequently, especially in the warm months on sunny days with onshore winds. In addition, because both stations iI

                                                                                 )

are on level fields and in similar terrain, effects of local terrain .. differences on these results were considered to be minor. By means of 2 x 2 contingency tables comparing a-r fog at P03A and P07A it was shown that occurrences of a-r fog at P03A in 1975, during which the i

  • I cooling towers were in operation from April though 19 December, were not increased above those which occurred naturally.

The larger number of fog occurrences at P03A than at C03A, even though both stations are nearly equidistant from Lake Michigan and in similar meteorological regimes is believed due mainly to terrain

23 Table 3.1

,.*--~

( -* Percent of Recorded Visibility Data ~ 3 km for Stations P03A, P07A, and C03A for 1975 and 1976 1975 Advection-radiation fog All causes P03A P07A C03A P03A P07A C03A

        . J none ( 99)
  • no data none (99) 9.9 18
  *-.       F    none (9 9)        none (34) None ( 97.)                 16.5   8.7      22.4
          **M    2.6 (100)         none(lOO)               1. 2 (98)     24.4   5.0      15.2
  ,_ .      A    1. 3 (100)         0.01 (7 3)             0. 5. (100)    7.9   5.2       6.3 M     4*. *6. ( 78)     1.6 (100)              0.9 ( 9 3)    21.5   4. 7 . 14 I'       **J    11.0(94)           4.5(100)               4.2 (100)     19.4   6.3.      7.5 J    19.9(81)          *4.2(100)               1.9:(98)      29.2   5.4       6.1 r*

I I

          **A    8.4 (96)           4.8 *(89)              2. 4.' ( 90)  12.9   5.9       7.2
          **S    8.2 (87)           6.3 (95)               1. 5 (100)    12.6  11.6       4.7 I -

1 **O 6.1 (100) 3.8(100) 1. 9 (100) 6.6 3.9 2.2 N 3.9 ( 8 8) 5.5 (68) 3.4 (99) 7.7 8.3 9. 8 D none ( 87) no data none (100) 5.4 10.1 1976 (, I J none (100)* no data none (100) 11.1 14.5 F none (100) no data none (100) 4.2 10.4 I **M 1. 4 (93) none (85) none(lOO) 2.0 2.2 3.6 (_ .

          **A. 2.6 (89)          0.7 (99)               0.01 ( 91)     4.6   2.3       2.1
          **M     3.0 ( 91)         2.9   (100)            none ( 90)     8.2  11~6        6.5 J     6.0 ( 9 8)        3.1 (100)              0.01(78)       7.9   9.2       2.9 J     4.3 (81)          4.5 (89)               0.6 ( 6 6)     7.3   9.8        3.7
          **A    15.2(100)          9.1 (100)              4.3 (92)      18.2  12.2        5.2
          **S       5.3(100)        5. 4. ( 90)            0.8 (8 7)      8.4    8.3       4.9
          **O       3.0 (90)        1.7 (100)              1. 9 ( 100)    3.0    3.2       4.1
          **N      none (97)        none ( 9 8)            none ( 100)    5.9  10.8        5.8 D      none (21)        none     (84)          none (100)          22.9      13.1
   **      *%possible data recorded
          ** >'85% data recovered           at all stations

24 effects. Visiometers at both stations are at a height of 1.5 meters above ground, but whereas the unit at P03A is on a flat grassy field, the unit at C03A is on top of a north-south berm, which is sandy except for scattered clusters of dune grass. The berm slopes steeply downward about 4 meters in 10 meters eastward and 2 meters in 2 meters westward. Even with similar radiative cooling processes at both

                                                                                   *1 )

stations, the air cooling to saturation and resulting in fog at C03A settles in the lowest elevations, which are east of the visiometer. l Unless the fog thickness is sufficient to reach the height of the \ visiometer, no decrease in visibility is recorded. It was determined that the visiometer performance was not responsible for the differences described above. From the data on the right side --i I of Table 3.1, it can be noted that for December through February, when a~r fog is infrequent but other types of fog are common in addition to visibility obstructions caused by snow, rain, haze, etc.~ the percent of recorded data for visibilities <3 km at C03A significantly exceeds that for P03A and P07A except for December, 1976, when data **, I

                                                                                   .J recovery for P03A was only 21%. This. result indicates that the visiometer was responding accurately to a decrease in visibility to 3 km or less, that the difference in fog occurrences is real and that it is most                    ;

likely due to the terrain differences described above. j Comparison of preoperational and operational results. Table3.2 shows a breakdown of hours with a-r fog for the preoperational years of 1973-74 and the operational years of 1975 and 1976 in the form of a . 2 x 2 contingency table for stations P03A and P07A. Including only those hours (or fractions thereof) in the analysis when a determination

25 Table 3.2 Contingency table of hours of advection-radiation fog at P03A and P07A for visibility -2_3 km. 1973-1974 P03A fog no fog Total fog 158. 9 44.3 203.2 P07A* no fog 337.8 2579 2916.8 ( Total 496.7 2623.3 3120 1975

    • fog fog 150.9 P03A no fog 54.6 Total 205.5 P07A no fog 287.6 1954.9 2242.5 Total 438.5 2009.5 2448 1976 P03A fog no fog Total fog 108. 6 67.9 176.5 P07A no fog 164.8 1674.7 1839.5
  • Total 273.4 1742.6 2016

26 could be made that there was a-r fog at one or both stations provides significant information not only on the simultaneity of fog occurrences but also on their variation with distance inland from the cooling towers. In addition, the requirement that data must be available for both stations even though only one may have had fog eliminates uncertainties caused by any missing data. Even though the results of similaranalyses for 1973-74 and 1975 were discussed in previous reports, their significant features are summarized here for comparison with results for 1976. From Table 3.2 it can be noted that for 1976 there were (1) 108.6 hours when there was fog simultaneously at P03A and P07A, compared to 150.9 and 158.9 hours in I

                                                                             .. 1 1975 and 1973-74, respectively; (2) 67.9 hours when there was fog at P07A but not at P03A, compared to 54.6 and 44.3 hours in 1975 and 1973-74, respectively; (3) 164.8 hours when there was fog at P03A but not at P07A,               (
                                                                           .J compared to 287.6 and 337.8 hours in 1975 and 1973-74, I

I respectively, and ) i (4) no fog at either station for 1742.6 hours, or 86% of the 2016 possible hours which could have had fog on those days. In 1975 there was no fog for 82% of the possible hours, and in 1973-74 there was none for 84% of them.

27 In the comparison of results for P03A and P07A in terms of possible \' cooling tower effects, the important assumption is made that occurrences i \ ... of a-r fog at P07A, because that station is 19 km inland from the ~ . I cooling towers, are due to natural processes only. Treseare considered

    ~  to represent "control 11 data. Occurrences at P03A, on the other hand, because that station is only about 1 km from the cooling towers and r*

downwind, on the average, are assumed to be caused not only by natural processes, but also could be caused or enhanced by moisture from the \. cooling towers. If a significant increase in a-r fog occurrences , ' from preoperational to operational conditions is found at P03A without a corresponding increase at P07A, a possible cause is the cooling towers. Changes in fog occurrences at the two stations from pre-operational ~ to operational conditions can be seen more clearly by incorporating the results of Table3.2in terms of ratios. Table 3.3shows the ratios of hours of fog at one station alone to the total hours of fog at one or both stations. For example, the number 541 in the denominator for 1973-74 is the sum of 44.3, 158.9 and 337.8 hours from Table 3.2. ( Table 3.3:Ratios of hours of fog at one station alone to r* total hours of fog at one or both stations 1973-1974 1975 1976 P07A alone 44.3/541 = 8% 54.6/493. l = 11% 67.9/341 .3 = 19% P03A alone 337.8/541 = 62% 287.6/493.l = 58% 164.8/341 .3 = 48%

\_

28 The feature of Table 13is that the percentages of 11 fog alone" for 1973-74, 1975 and 1976 increase from the preoperational to the operational years at P07A and decrease at P03A. Specifically, it can be noted that even though P03A has much more frequent a-r fog than P07A, ( l ) the percentages that PO? Ahad fog a1one were 8%, 11 % and 19% of the total fog hours for 1973-74, 1975 and 1976, respectively, and

        * (2)   the percentages that P03A had fog alone were 62%, 58%

and 48% of the total fog hours for 1973-74, 1975 and 1976, respectively. A complete explanation of these trends is not possible at this time, but tentative reasons can be given. It can be stated with c~rtainty, for example, that because moisture from the cooling towers can only r increase the humidity and possibly fog, th~ decreasing trend at P03A is due to natural causes only. The increase observed at P07.A, on the other hand, could be caused by natural processes and/or cooling tower moisture; a possibility which seems to contradict the assumption that P07A provides control data uninfluenced by the cooling towers. j No direct information on this possible contradiction is available, but as Carson (1976) points out, many of the models for predicting plume dimensions and surface fogging from mechanical-draft towers predict frequent fogging at some distance (l to 10 km) from them due to downward dispersion of the plume after an initial rise. Near (

                                                                              . .I large bodies of water, such a condition can   occur~th onsho~e     winds by a process similar to that for particulate plumes described by Van der Hoven (1967) and by Lyons and Olsson (1972). Carson stresses, however, that such fogging has not been observed or reported and that the main cause of fog is aerodynamic downwash near the towers,

29 a condition not simulated by most models. At this point in the analysis it is considered premature to attribute the increase at P07A to cooling tower moisture. If this moisture c* i were responsible, a greater increase in average humidities should i**-, also be observed at P07A than at P03A. A comparison of humidity data i

 \    .

for the two stations for the months of most frequent a-r fog, however,

.r- -

does not show such an increase. Analysis of these results is continuing, with the expectation thata more detailed examination of specific fog occurrences using both past data and those to be obtained in 1978-79

,. *,   will provide additional information necessary for a more complete explanation .

.i

 \   .

I I . 1 \. -

30 IV. PLUME EFFECTS ON SOLAR RADIATION by Edward Ryznar In the study of plume effects on incident solar radiation thus far, it has been found that at a point in the plume s shadow, the reduction in 1 solar radiation is similar to that produced by broken (6/10-9/10 sky coverage) stratocumulus clouds. This is the case if the plume is dense and continuous enough over the observation point and if it maintains an average position between the sun and that point as it moves downwind. On the other hand, it has also been found that for a cloudless sky and an observation point close to either side of the average position of a plume s shadow it is possible 1 for that point to receive more solar radiation than it would if there were no plume (Ryznar, 1978). In other words, with certain orientations of sun, plume and observation point, it is possible for incident solar radiation at the observation point to be greater than it.would be without a plume even though occasional shadowing of the point by the plume may take place .. An example of such a condition was discussed briefly in the Fifth

                                                                                     **:   )

I I

                                                                                       . j Annual Report, using a pyranometer recording of global solar radiation I

(direct plus diffuse on a horizontal surface). For comparison with other J examples, the recording is shown again in Fig.4.1. It was obtained at station P03A on the cloudless morning of 7 March 1977 when a wind direction of 290 degrees caused the average position of a fragmenting plume to be between the sun and the pyranometer from 0830 until 1300 EDT. After 1300 the wind direction gradually shifted to 270 degrees, carrying the plume north of an imaginary sun-pyranometer line. The smooth solid curve in Fig.4.1 is the curve of global solar radiation for a cloudless sky for that station for 7 March. It is based on data from a nearby pyranometer uninfluenced by the plume as well as on symmetry of the afternoon and morning recordings aroun~ solar noon. Symmetry could be assumed because winds remained on shore and there was no noticeable change in air mass from morning to afternoon.

I'

.I 7 j
             /

j

"i ~ ~

2: l. r.. 0. u) a. q 0.

                                <I)

Fig. 4.1 Recording of global solar radiation at P03A for 7 March 1977.

    \(__ _

32 -,

                                                                                           \

It can be noted that in the morning the plume caused frequent variations l .I I of solar radiation, many of which exceeded clear sky values. For the period *

~

1130 to 1230, they occurred frequently enough and with sufficient amplitudes I j to cause the average to exceed that observed with a cloudless sky. The l reason is that the solar radiation reaching the pyranometer during the large .J positive variations consisted of not only that received directly from the sun but also that reflected from the sides of the plume. As long as the l average position of the fragmenting plume shadowed the pyranometer occasionally, the large downward variations were observed. From 1300 to 1400, however, t when the plume gradually moved north of the sun-pyranometer line, all j variations were above the clear sky curve because solar radiation continued to reflect from the south side of the plume but there was no shadowing of the pyranometer. Finally, after 1400, the plume position moved too far north of the pyranometer to cause significant additive effects, and the normal clear sky radiation was received. * !* J A second example is shown in Fig.4.2. Again, the sky was cloudless  ! J except for the plume. In this case, however, the plume was more dense and

                                                                                          \

continuous than in the first example and a shift in wind direction caused j it to move quite rapidly between the sun and pyranometer at 1130, remain oriented in the WSW to ESE shadowing position until about 1415 and change .I rapidly to a northeasterly direction after that time. The two examples given above illustrate types of effects the plume may have on solar radiation measured at the 1-km distance of station P03A. -~ t As implied in the discussion, the effects can range from an average enhance-ment to a diminution of solar* radiation. The type of effect depends not only on the characteristics of the plume but also where the observation point is located in relation to the plume and the sun.

33 I ( . I l r

j
                                                   'fl  ; )'

r [ _* i' 'i

             '~---*--
i*

fjl

                                                                   ... /... *.
  • Fig. 4.2 Recording of total solar radiation for 1 March 1977 at station P03A. The smooth curve drawn through the recording is
                      ~stimated for a cloudless sky.

34 V. OCCURRENCES OF APPLE SCAB INFECTION CONDITIONS by Edward Ryznar .r I J Apple scab is a parasitic fungus disease which can cause major damage to both leaves and fruit of apple orchards. Because the raising of apples and other fruit is one of the main industries in southwestern lower Mich*igan and there is a possibility that cooling tower moisture may cause an increase in the frequency of occurrence l) of certain combinations of temperature, humidity and precipitation conditions conducive to apple scab infections, a study of occurrences of these conditions before and during cooling tower operation is being carried out. The work described below is an extension of the preliminary study. described in the Fifth Annual Report. The preliminary study used 1974 (preoperational} and 1975 (operational) meteorological data. It compared occurrences of meteorological conditions which met certain criteria for several Palisades

                                                                                      *1
                                                                                       .. ~'
                                                                                         . .1 I
                                                                                             '1 network stations with those for Muskegon County Airport, 1vhich served as a representative control station. It is near Lake Michigan like the Palisades network, but it is out of range of cooling tower effects. Results of the study indicated that an increase in apple                  .J scab infection conditions observed between 1974 and 1975 was due to
                                                                                              'I  .

natural meteorological processes and not to the operation of the cooling

  *towers. The analysis described below extends the study to include                   .,)

i meteorological data for 1976. Germination leading to apple scab infections begins as soon as disease-carrying spores, released from perithecia on dead wet leaves on the orchard floor during temperatures abov.e freezing, land on new green leaves or fruit which are also wet (JJnes, 1971). The meteorological

35 ( ~*- conditions most conducive to apple scab germination and infection are temperatures between 63°F and 75°F accompanied by or following rain with high humidities. For example, at an average temperature of about 63°F, it takes only 9 hours for a primary infection and 18 hours for a severe infection to take place after* the start of a rain. If a protective spray is not applied before or within this critical 9-hour period, a spray with eradicative i . properties must be used. At colder temperatures longer times are ( . required for infections to occur. None can occur at temperatures below freezing. r Since an infection period begins with the start of rain, the ( . criteria used in this study to determine its severity were that the temperature remain above freezing during precipitation and that the relative humidity remain at least 85% following the end of precipitation .

       . The precipitation criterion was that it must exceed 0.005 inch per hour.

The reason for choosing the relative humidity criterion is that for the temperature range conducive to infections leaves, bark and fruit I . which are wet from rain are likely to remain wet as long as the relative humidity is at least 85% even though the rain has ended, thus

\.

adding to the period of infection. A computer program was written which totaled the number of hours fulfilling these criteria for several network stations and for Muskegon (1948-1952) for each occurrence of precipitation in each month from February through August. In addition, each occurrence wa~ categorized as being conducive to light, moderate or heavy infection according to data from a table given in Jones (1971) which shows degrees of infections in terms of durations of wet conditions for various te~perature cate~ories. Finally, the number of occurrences of each degree of infection was totaled by month. Equivalent information

36 for natural occurrences at Muskegon for 1974 through 1976 was obtained by manually screening hourly weather observations and tabulating durations of conditions which fulfilled the criteria given above. Results of the work are given in Table il. The number of occu~rences of light, moderate and heavy degrees of infection are given for 1974, 1975 and 1976 for Muskegon and for network stations P03A, P04A, P05A~ P06A and P07A. In addition, occurrences by month are given for station P05A and for Muskegon together with the average number of occurrences for Muskegon for the period 1948 through 1952. This 5-year period was chosen on the basis of completeness of hourly weather observations available on magnetic tape. Significant features of Table 5.1 are the following:

1) In general, the year 1976 had fewer total occurrences of all infection conditions than either 1974 or 1975 both at Muskegon and within the Palisades meteorological network. The total occurrences ei (16) for 1976 for Muskegon were 2 fewer than the climatological
                                                                                 .1 I

(1948-52) average for that station, 4 fewer than for 1974 and 7 fewer than for 1975. As described in the Fifth Annual Report, the

- large number of occurrences in 1975 was caused mainly by much above               I I

normal precipitation in the spring and summer months throughout southwestern lower Michigan.

2) Within the Palisades network itself, the total number of I

i occurrences for 1976 varied from 14 at P06A to 17 at P03A. The -~-! overall average of slightly less than 16 is the same as that obtained for Muskegon.

    • *- -~bl.ll r -, -- ---;
                                                                                                     - --j.       **1 Number of Occurrences of Apole Scab Infection Conditions Muskegon County Airport (MKG)

LIGHT(L) MODERATE(M) UEAVY(H) F M A M J J A TOT F M A M J J A TOT F M A M J J A TOT 1974 0 0 l 0 5 l 0 7 0 0 l 2 3 l l 8 0 l 2 0 1 0 5 1975 0 0 l 2 3 l 8 0 0 3 3 2 2 11 0 0 0 0 0 3 4 1976 0 l 0 0 l 2 0 4 0 l 0 2 2 0 6 0 0 0 2 2 l 1 6 AVE (1948-1952) 7 8 3 Stat ion P05A 1974 0 0 l 2 0 1 2 6 0 0 l 0 5 0 2 8 0 0 0 1 l 2 5 1975 0 0 l 3 3 4 l 12 0 0 0 3 3 l 3 10 0 0 0 2 0 0 2 4 1976 0 0 2 0 0 0 0 2 0 0 0 l 2 6 0 9 0 0 0 2 2 0 0 4 Totals Station 1974 1975 1976 L M H TOT L M H TOT L M H TOT MKG 7 8 5 20 8 11 4 23 4 6 6 .16 P03A 4 9 2 15' 4 15 3 22 4 10 3 17 w P04A 3 12 3 i's 3 15 3 21 4 8 4 16 P05A 6 8 5 19 12 l 0 4 26 2 9 4 15 P06/\ 4 ll 5 20 7 13 5 25 5 6 5. 14 P07A 5 10 3 18 9 12 3 24 5 6 5 16

                                                                        .    )

38

                                                                             )
                                                                       .\

These results indicate that moisture from the cooling towers is apparently not great enough to alter significantly occurrences of apple scab infection cond1tions from those which occur as a result

                                                                           . )

of natural meteorological processes. Similar analyses of 1977 data will be conducted to determine the consistency of these results.

                                                                        -~
                                                                             )

I

                                                                         .I
                                                                              \

I

                                                                            .I eJ
                                                                           . _j

39 VI . . TRUE LAKE BREEZE OCCURRENCES AND CHARACTERISTICS 1* by Edward Ryznar The importance of the lake breeze to studies of shoreline meteorology in general and diffusion processes in particular has I l . resulted in a continuing effort since 1973 to obtain information on lake breezes near Lake Michigan and how they affect the cooling tower plume. Lake breeze effects result from changes in temperature, { . { .. humidity, wind velocity and thermal stability which accompany the ( . ~ abrupt change from land air t6 lake air and produce co~responding changes in atmospheric diffusion characteristics. Meteorological data from the Palisades and Cook networks have been analyzed to determine true lake breeze occurrences, penetration inland and surface changes in temperature and humidity accompanying the passage of a lake breeze front. In addition, temperature data from the Cook meteorological tower have been analyzed to determine changes in thermal stability. The work described below extends the results des~ribed in each annual report to include results obtained from \ .. an analysis of 1977 data. A lake breeze is an onshore wind generated by the difference in temperature between the lake surface and the adjacent land surface, the land being warmer than the water. There are two general types of lake breezes. A true lake breeze is defined here as one consisting of lake air moving onshore against an offshore gradient r . wind~ The Lake Michigan shoreline in the vicinity of the meteorological networks is oriented approximately NNE-SSW, so a true lake breeze is one that moves inland against a wind from any direction between

  • northeast clockwise through south. At the network station locations,
       *a *gradient wind is determined mainly by the horizontal gradient of atmospheric pressure.

40 its passage is detected most reliably by a shift in wind direction from east to west. A temperature decrease and a humidity increase also occur. Although it is not considered here, a type of lake breeze also

                                                                                     .i  (

forms which enhances an existing onshore gradient wind .. Because onshore .., I I

                                                                                          )

(west) gradient winds are more common than offshore winds in the vicinity of the meteorological networks, this type occurs more frequently than a true lake breeze. In this case, an impetus is added to the onshore gradient wind which is detectable mainly as an increase in wind speed. Changes in temperature, humidity, wind direction -1

                                                                                          \

and thermal stability are generally less than those caused by a true lake breeze front. I Occurrences for 1973 through 1977. As discussed in previous annual reports, for the years 1973 through 1976, the months of March through September have had the largest number of true lake bre~zes. In 1977 there were 33 occurrences. The 149 total occur-

                                                                                     .!   I

_j rences between 1973 and 1977 are listed for March through November by year in Table 6.1.

                                *Table 6.1 Monthly Occurrences of True Lake Breezes for 1973 through 1977 Mar    Apr    May   Jun   Jul   Aug   Sep   Oct   Nov    Total 1973       5      3      2      2     2    3     1     3     0      21 1974       3             4      5     7   10     5     0     0      35 1975       1      3      4      4     5    7     3           2      30 1976       2      2      5      4     4    8     4           0      30 1977       1      6      6      6     4    5     3     2     0      33 Tot;il    12     15     21     21    22   33    16     7     2     149

41 The results in Table~ show a monthly distribution of true lake breeze occurrences which is slightly different for 1977 than for the other years. For 1973 through 1976,for example, July and August had the largest number of occurrences, but for 1977 April, M~y and June with 6 each outnumbered July (with 4) and August (with 5). Recalling that the least daytime cloudiness, the greatest warm land - cold water temperature difference and the lightest gradient wind speeds are ( . factors* most conducive to true lake breeze formation (Ryznar ..e.:t ....al., 1975), it is possible to explain these results by referring to i \ -* Table ~2. The table gives monthly averages of hourly observations for the National Weather Service Station at Muskegon County Airport. They are considered representative of average conditions near Palisades. The averages are for 1977 and for climatological (1940-1976) data .

    • Table 6.2 Comparison of Climatological and 1977 Meteorological Data Muskegon County Airport I Mar I Apr I May i Jun Jul I Aug 1 Sep I Oct Nov sky c0 ver c 1i m. I 7 . 4 I 6. 5 i 6 . 1 I 5. 7 4.9 5. 0 I 5 . 6 6 . 2 ; 8.4
                ~~~~----__,.---,-__,.~----~---~__,.~~---__,.__,.-;-~--;~~__,.~~

(tenths) 1977 , 6.3 5.9 4.9 [ 5.8 4.9 6.71. 7.6, 6.8 M Wind speed clim.  ! 12.2 12.2 10.4 I 9.4 8.6 8.5 9.2 /10.9 11.8

                ~~~~----~----.-~__,.---~---__,.~~~---~~-,--~--;__,.~__,.~~

(mph) 1977 I 12.8 i\11.5 I 9.7,11.3 12.2 i 11.7 jll.6 12.8 M 1 Precip clim. I 2.39! 3.16 2.711 2.64 2.51 2.561 3.36 2.7

                ~__,.~~----__,.---,..-_,.__,.-+-~----.-~~-+-__,.-+~~-;-~-_,.-_,.~-_,.~~

3.04 (inches) 1977 I 3.48: 1.71. 1.51! 2.52 2.41 2.481 4.4 1 2.46 M I Ave. max. temp. clim.140.5  !

                                    \54.9 I 65.9176.2 I                    I 80.4179.2 71.4 \60.7 l       45.7

(°F) 1977 I 46.4, 61.1 I 75.7 r 72.6 81.2 / 75.9 169.o : 56.7 M

42 Compared to the climatological data, the 1977 data show that in April and May Muskegon had less daytime cloudiness, lighter average wind speeds, much above normal average maximum temperatures and much below normal precipitation, all of which are in the right sense for more* than normal lake breeze occurrences. The higher than normal frequencies in June are more difficult to explain because that month had normal cloudiness, higher than normal wind speeds and below normal maximum temperatures. July was near normal except for wind speed, which averaged 4 mph above normal. August, because of its greater than normal cloudiness, higher than average wind speed, and below normal temperatures could be expected to have the fewer I _J true lake breeze occurrences observed. Penetration inland. Once a true lake breeze forms, the distance that it moves inland depends on the velocity of the offshore wind against which it is moving as well as on cloudiness. It has been found for example, that an offshore.wind of about 6 meters per second* is a critical speed which determines whether a true lake breeze will form and its behavior if it does. Even during cloudless conditions, if the offshore wind speed exceeds about 6 meters per second it is likely to inhibit true lake breeze formation completely, or at least not allow one to form until after midday, when sufficient heating of the land surface can occur. If it does form, it usually moves less than 3 km inland and is often forced to retreat lakeward, sometimes back to the lake itself.

  • measured at a height of 3 meters

43 Cloudiness produces similar effects on lake breeze circulations. I If there is sufficient morning cloudiness, a true lake breeze will not form because heating of the land surface is inhibited. If ,.. cloudiness increases sufficiently after onset of a true lake breeze, the lake breeze circulation will be weakened because the land-water temperature difference necessary to sustain it decreases. \ . Not only does this limit the distance inland which the true lake breeze can move but it also decreases meteorological changes caused by the lake breeze front. Table &3 shows the 149 occurrences of true lakebreezes in terms of those that reached various maximum distances inland. Table 6.3 Number of True Lake Breezes Reaching Maximum Distances Inland 1 km 1-5 km 5-11 km 11-19 km >19 km 1973 4 2 4 3 8 1974 3 3 6 10 13 1975 2 7 7 5 9 1976 3 7 7 12 1977 2 .1 10 5 15 Total 12 16 34 30 57 Of the 149 true lake breezes listed, it can be noted that 57, or nearly one out of three moved at least as far inland as the farthest station, which was P07A at 19 km. In these results, if a lake breeze

    • passed the farthest inland station of the Cook network, which was 12 km, and station P07A in the Palisades network, which was 19 km*,

it was assumed that it reached at least 19 km along the coastline in general.

44 Vertical structure. Two sources of information were used to determine how lake breeze frontal passages affect wind and temperature structure in the vertical near the eastern shoreline of Lake Michigan.

                                                                          . )

One source was the hourly values of data from the Cook meteorological tower. These data were obtained from Meteorological Evaluation Services, Inc. ,Amityville, New York, which has the responsibility for processing and tabulating tower wind and temperature data and for compu~ing diffusion categories. Hourly values of temperature

                                                                           ~

differences between 9 meters and 55 meters were analyzed to determine I i lake breeze effects on thermal stability. The second source was the measurements of lake breeze structure through and above the layer of onshore wind made by Olsson et.al. (1968) near Grand Haven, Michigan. Results of the latter study were described in the*fifth annual report. A total of 91 occurrences of true lake breezes for 1975, 1976, ei i and 1977 were analyzed to determine their effects on thermal .) I stability using the Cook meteorological tower data. Because the typical behavior of wind direction near the shoreline on a true lake breeze day is a wind shift from offshore to onshore near 1000 local time and back to offshore near 1900, it was possible* to obtain information on average temperature differences between 9 and 55 meters (1) prior to lake breeze frontal passage, (2) with its passage, (3) for the duration of the lake breeze and (4) with the return of land air toward the lake in the evening.

45 Results of the analysis are shown in Tables 6.4 a_nd 6"5 . Table 6.4 lists the average temperature differences and the number of cases for

1) the hour prior to the passage of the lake.breeze front, 2) the period of onshore wind during the lake breeze and 3) the hour after the evening wind shift from onshore to offshore. It can be noted that in 80 of the 89 cases, the temperature difference for the hour prior to lake breeze passage was substantially negative (lapse) with an average of -1.5 °F, which is i . equivalent to -1.81 °C/1DO m, or nearly twice the adiabatic lapse rate (neutral stability). Also, during the period of onshore wind it remained predominantly negative, but one hour after the wind shifted from onshore td offshore, 55 of the 86 cases showed a substantial inversion.

The effects of the passage and retreat of the lake breeze front on the temperature difference are shown in Table 6.5. If a change in the temperature difference is positive, it could have been caused either by an increasing inversion or a decreasing lapse, both of which signify a change toward thermal stability between 55 and 9 meters. Contrarily, a negative change could have been caused either by a decreasing inversion or an increasing lapse and signifies a change toward thermal instability. It can be noted that with the passage of a lake breeze front the trend is toward thermal stability in 47 cases. S~ch a change would be expected because the colder heavier air which was over the lake displaces the warmer lighter land air, producing a decrease in the temperature lapse which existed for the hour prior to lake breeze passage. It is significant, however, that 42 cases were negative or zero changes. With the retreat of the lake breeze in the evening, a similar but more prevalent change toward stability occurs. This may be explained by the land-air cooling due to radiative losses as

46 Table 6.4 Values of T55 -T 9 for True Lake Breezes

                     .,                              During       I T55-T9             Hour Prior             Onshore Winds !I Hour After      --**

i# Cases Ave. °F I# Cases Ave.°F : #Cases Ave. ° F i I Neg. (lapse) l 80 -1.5 80 -1.2 i 21 -1.0 I Pas. (inversion) I 5 +2.9 5 +0.8 !\ 55 +l.6 I I Z2ro 4 0 l 0 10 0 I I i Table 6.5 J Change in T55 -T 9 with P~ssage and Retreat of True Lake Breezes Is; gn of Change I \i/ith Passaqe I With Retreat I #Cases Ave. OF ~ 7T Cases Ave. OF

  \Pos. (incr. inversion            41'      +0.8                 77      +l.3 or deer. lapse)

I

  ;Neg. (deer. inversion            20       -0.9                   5     -0.7 1   or i ner. lapse)
  ~ero                              22          0
                                                          \

4 0

47 displac~ng the now warmer lake air as the wind shifts from onshore to offshore. It can be noted that the total humber of cases doe~ not always equal 91, the total number of lake breezes. Reasons for this include missing data, the lake breeze did not always reach the meteorological tower, there was not always a well-defined evening wind shift from onshore to offshore and some lake breezes formed in the Palisades network but not in the Cook r . I l network. In summary, the results show that

1) for the hour prior to lake breeze passage, there is usually a lapse in temperature which averages about
1. 5° F,
2) as the lake breeze front passes, there is *a trend toward increasing thermal stability,
3) during the daytime period of onshore wind there is
**            4) 5)

usually a temperature lapse which averages abuut l.2°F, as the wind shifts from onshore to offshore in the evening, the temperature difference changes from lapse to inversion and the change averages about 1 .3°F and for the hour after the evening wind shift an inversion averaging about 1.6°F is most common. Usually, the magnitude of the inversion continues to increase after the wind shift occurs .

48 I VII. SEASONAL VARIATIONS IN AIR TEMPERATURE: A COMP ...HSON OF OPERATIONAL AND PREOPERATIONAL DATA by Michael R. Weber Introduction In the Third Annual Report a diffusion model for computing the average annual number of hours of fog that would occur annually if the Palisades coolin9 towers were operated at full design capacity was described and applied. The basis for the diffusion calculations was the standard Gaussian diffusion equations. Although there are questions concerning the applicability of these equations to modeling the diffusion of water vapor in a cooling tower plume, work by Hanna (1974) and others indicates that they may provide reasonable diffusion estimates. With this in mind, the model mentioned above was modified to provide estimates of the increases in temperature and relative humidity that would be expected directly beneath the plume at a distance of 1 km, from the towers. One kilometer is the approximate distance of station P03A from the I I

                                                                                     ... J towers.I:1clude9in the modifications were the following simplifying assumptions:

(1) ambient pressure of 1000 mb (2) "very unstable 11 stability class, which gives the highest ground-level concentrations; (3) plume height of 400 m and (4) the combined output of both towers treated as a single point source. The computer program for the model was run for various combinations of temperature, relative humidity and wind speed. The predicted temperature increase for a 2 m/s wind is shown in Table 7.1 as a function of ambient temperature and relative humidity. The table shows that the lower the ambient temperature, the larger the predicted temperature increase . The effects* of ambient relative humidity on the predicted temperature

Table 7.1 Gaussian Diffusion Estimates of Increase in Temperature (°F} at l km Due to Cooling Tower Operation Wind Speed.; 2 m/s 1:~EI... HUt1IDITY T E M p F f~ A T u i:~ E , F

o. 10. 20. 30. 40. ~)O. 60. 70. BO
  • 10.00 0.07 0.79 0.70 0.1.11 0 * ** ,.,......
                                                                                 ~J                   0.41     0.31   0.20          0. OB 20.00       0.87     0.79         0.71        0.62                  0.52                     0. 4~5   0. ~52 (). 22        () .. 1 :I.

30.00 0.07 0.79 0.71 0.63 o.~-:.;3 0.44 (). 34 (). 24 0.14 40.0() 0. f.17 o.oo 0.72 0 **~13 o.~;4 0 * ,,,....,. 0.45 o.:*u, () * ~! l.1 (). t 7

         ~)() * () 0 0. OEI   o.oo         0.72        0 ..-!>4                                       0.46     0.37   (). 2f:l l.iO. 00 70.00 o.oo O.IW o.ao 0.81 0.73 0.73
0. /.14

(). {1:'.'i o.57 w..J

0. 5{1 0.47 0.40

(). 39 0.40

o. :rn 0.32

()

0. :I. 9
                                                                                                                                          '"l'"I

(). 2~5 [)(),00 o.oa O.El1 0.73 0. t.i~"i 0. 5*7 0.49 0. 41 (),33 o. :n

         '}(). ()()  O.ElO    0.81         0.74        0.6!.1                o.~rn.                   (). ~)() 0. *13 () * :*5 !'.) 0. 2'}

100.00 O.B9 0.81 0.74 o.t.i7 (). 5'} 0. ~.H 0.44 (). 37 o.:H

50 increase range from negligible at low temperatures to a slight positive change at high temperatures. The magnitude of the temperature increase predicted for low temperatures is about 0.7 to 0.9°F (0.4 to 0.5°C). Although these are only estimates, it will be shown below that their magni-tudes are very similar to the magnitude of the minimum detectable change in temperature required to be statistically significant. Evaluation of Temperature Data -1 I The use of statistical measures to determine whether there are significant differences between preoperational and operational temperature data for

                                                                                 \J stations near the Palisades plant was discussed in the Fifth Annual Report.

Lowry (1977) has shown that such a before/after study is an ideal method for determining the existence of localized effects on climate. The analysis -- J I has been recently extended and revised, as discussed below, to include data through November 1976 for both the Cook and Palisades meteorological networks. I Both cooling systems began operation in Spring 1975 and were shut down in December 1975 for at least six weeks. The Cook plant resumed operation in late February 1976 and the Palisades plant resumed operation in May 1976. i I Since the data available for this analysis cover the period February 1973 - *- .J November 1976, there are two years of preoperational and two years of

                                                                                    - I I

operational data for the summer (June, July, August) and autumn (September, October, November) seasons for both plants, as well as the spring (March, .__ l I April, May) season for the Cook Plant. There are only limited operational data available for the winter (December, January, February) season. Data recorded while a plant was temporarily shut down are included in the preoperational data set.

51 The basic data u:ed in the following analysis are hourly air temperatures for the network stations. Details on instrumentation, calibrations, and data processing are given in Ryznar et.£.]_., (1976). Method The approach takeri in determining a possible temperature effect due to the cooling systems is to compare the operational and preoperational temperature data for stations near the shoreline. Since, however, the seasonal average temperature at those stations can vary greatly from year to year '** due to natural causes, it is necessary to incorporate additional data into the analysis to take into account such natural variability. The network stations 10-20 km inland, for example, are affected by the same large-scale weather patterns as those near the lake but are far enough away so that the chances that their temperatures are affected by the cooling systems are remote. Data from these inland stations are used as controls, therefore, to accommodate natural temperature variations. For each hour, the average temperatures for the Cook inland stations (C-10, 11, 12) and for the Palisades inland stations (P-6, 7, 13) were subtracted from the corresponding average temperatures for the shoreline stations in each network (C-1, 3, 4, 5) and (P-1, 2, 3, 8, 10). After stations were grouped and temperature differences (6T) calculated, the data were sorted by wind direction measured at P03A and by the hour of day. The* wind direction (WO) sorting is into two categories: offshore (45° ~WO < 180°) and onshore (225° ~WO< 360°). Hours with alongshore winds (0° ~WO < 45°) and (180° ~WO < 225°) were not used in the analysis. The data were sorted by wind direction because

52 iI if there is an increase in temperature near the plant, the possibility of detecting it in the station data exists only during periods of onshore winds. In addition, the 6T data for offshore winds provide a ~antral which may be compared to the 6T data for onshore winds. The data were finally sorted by hour of day. Plots of the average diurnal variation of the shoreline minus inland 6T for each season and wind direction category were made to be able to compare

                                                                                            \

visually the operational curves with the preoperational curves. If there II

  • J is a detectable cooling system effect, one would expect the onshore (wind direction) operational 6T curves to be displaced upward (i.e., more positive Cl' 6T) from the preoperational curves, with no corresponding displacement of*

the offshore operational curves. To evaluate the statistical significance of any observed differences, 11 Student 1 s 11 -t test was applied. The test requires that the observations in the data sample be independent and approximately normally distributed. e! Hourly observations of most meteorological variables, however, are generally not independent, since the value of a variable for one hour is usually dependent on the value for the previous hour. To avoid the problem of dependence within a sample, the data were

                                                                                          .l sorted by hour of the day so the observations grouped for any particular hour were separated by at least 24 hours (and often longer, due to the wind direction restriction).         The t-test was then applied for each hour of the day.         Although the results for any particular hour are closely related to the results for the hours immediately preceding and following it, significant results are separable from the natural diurnal variability in the temperature field.

53 Discussion The method described above was used to analyze temperature data for March 1973 - November 1976. Results for spring are shown in Fig. 7.1 In this and the following figures, dashed lines and open circles represent

  • .,' /

preoperational data. Vertical lines show the 99% confidence interval given by the t-distribution. Operational data are plotted as solid circles and solid lines. The numbers shown at the points plotted at 0600, 1200, 1800, and 2400 EST are the number of observations in each of those data points. In Fig. 7.1, the moderating effect of the lake on shoreline temperatures is clearly seen in the Cook curves for onshore winds. Inland temperatures are higher during the day and lower at night than those near the shore. \ . With offshore winds, on the other hand, there is little diurnal variation. It is also apparent that there is little difference between operational and preoperational data for offshore winds, while for onshore winds, the

  • operationa 1 curve is consistently lower than the preoperational curve. The operational data, in fact,
  • fa 11 outside the 99% confidence limits (+0.5 °C) throughout the af te rno_on.

Similar characteristics are also apparent in the Palisades curves for the spring season. There are, however, some differences. The most evident of these is that the operational curve for offshore winds is at or near the confidence limit for preoperational data for most of the day. Since, with offshore winds; there is no meteorological reason for differences in ~T between the two data periods, it is assumed that the difference observed is an indication of a systematic difference between the data sets. It could for example, be caused by one or more of the instruments responding nonlinearly between semi-annual calibrations.

54 onshore *offshore 1

                                                                                          "1, j
                                                                                    ;     \

(.) 0 w (.) z-1 II.I a: II.I u. LI. Q 1 II.I coast warmer r1t Palisades '., j a: - I

           <                                                                      *,,_)

a: 0

                                                                                 *?
           !..I a.
           ~

LLI t-J

                   -2 48 inland warmer 00 04  08  12  16    20   2400  04 08   12 ' 16 20 24
                                                                                  - }

HOUR, EST I Fig. 7.1 Diurnal variation of the difference in temperature between _I coastal and inland stations at both Cook and Palisades, with onshore and offshore winds, for the spring season. Vertical lines show 99% confidence interval on preoperational I data. Number of observations shown every six hours. __ J

55 For purposes *of this analysis, it is assumed that both the offshore and

  • onshore operational curves may be displaced toward the correspondi-ng pre-operational curves by an amount that would make the two offshore curves have the same daily mean value. This moves the Palisades operational curves of Fig.7.1 up by abou~ 0.4°C for all hours. Such an adjustment makes the operational/preoperational comparison for Palisades very similar to that for the Cook network.

The sign of the observed differences between preoperational and operational data in the onshore curves of Fig. 7.1 is opposite to that expected if there were a cooling system effect. The differences appear to be caused by natural differences in cloudiness between the preoperational and operational years. \ . For example, average daytime cloudiness at Muskegon, the nearest represen-tative first-order weather station ('Vl00 km north of Palisades), was 9% higher in spring of 1973 and 1974 than in the two operational years. The effects of these differences are apparent in the Muskegon temperature data. In the preoperational period, ~aily mean temperatures averaged 0.3°C above normal, but the 1600 EST temperatures averaged 1 .0°C below normal. In the operational period, daily means were O.l°C above normal, while 1600 EST temperatures averaged exactly normal. It is likely that the larger number of cloudy days during the two preoperational springs resulted in weaker average shoreline/inland temperature gradients and the flatter daytime ~T curve. So even though natura1 variability was taken into account, significant differences between operational and preoperational data still occurred. There is no doubt that a larger preoperational data base would have tended to average the effects of these anomalies .

56 Diurnal plots of .6.T for the summer season are shown in Fig.7.2. Immediately apparent is the fact that the operational data fall within the confidence limits on all of the graphs. As in spring, the Cook offshore curves show little diurnal variation. An effect of the lake being

                                                                                        .'     '\

warmer than in spring is seen in the more positive nighttime onshore .6.T's. . I i During daytime, the higher lake temperatures are apparently offset by increased temperatures inland, so that the .6.T is about the same as that for spring. The Palisades offshore curves exhibit an unexpected diurnal variation {r which is, in fact, just the opposite of the onshore variation. The portions ,_I of the curves between 1000 and 1900 EST are similar to their Cook counter- .I I

                                                                                                /1 parts, but the surprising result is the negative .6.T at night. It is                     .I believed that this is due to station locations, since, of the five Palisades                  I
                                                                                         '~ !

shoreline stations, four are located in low-lying terrain. Station 1 is located in a depression among sand dunes, and stations 3, 8, and 10 are all located in a large low-lying area which rises gradually to the east and is bounded sharply on the west by sand dunes. The terrain farther inland, on the other hand, is higher and more rolling. It is likely that temperatures of the shoreline stations are affected to a greater degree by local air drainage processes by \<Jhich, in the absence of otht forces, cool air tends to settle into low-lying areas at night. This process I

                                                                                             *. J has been observed to cause large differences in temperature over short distances and could reasonably account for not only the offshore negative
  .6.T's observed at night, but also the less positive (compared to Cook) onshore nighttime .6.T's.

An additional characteristic of station locations which may be responsible for differences between the daytime portions of the Cook and Palisades onshore .6.T curves is the distance of each set of shoreline stations from

\. 57 onshore offshore coasiarmer Cook r*'., 0 00 0

i. -- z w -1 a::

Ii.I

        ~

u.

       -c coast warmer I
~~

Ii.I r:c

        ~2 r:c
        &LI a.
                                       +-

Palisades

E Ii.I t- 1
            -1
  .. /
0. 04 08 12 16 08 12 16 20 24 Fig~ 7.2 As in Fig. 7.1, for the summer season .

58 Lake Michigan. Three of the four Cook shoreline stations are within 0.5 km of the shoreline, while three of the five Palisades stations are more than e: 1.5 km inland. Since the Palisades shoreline stations are more spread out, l I shoreline-inland temperature gradients are less well-defined, and the daytime portions of the curves are flatter. Autumn curves are shown in Fig.7.3. The Cook onshore operational curve, which is at or near the preoperational confidence limit, is the type of

                                                                                       'I result expected if, indeed, the cooling system did raise shoreline temperatures.

Since, the offshore operational curve shows a similar shift, the effect appears to be systematic. A downward shift of the 0.4°C by which the offshore curves differ brings the onshore operational curve well within .-1 the confidence limits. The effect of the relatively warm lake is then

                                                                                      .i seen, for both Cook and Palisades, in the fact that shoreline temperatures            I are higher than inland temperatures throughout almost the entire day.

Since there are very few operational data available for winter at this time, the curves have not been included.

                                                                                   *. .I
                                                                                      ./

i __ J Conclusions .I

                                                                                    . J Based on the data available and analyses made at this time, there is no detectable average increase in temperature at stations near either the Donald C. Cook or Palisades Nuclear Plants due to operation of their respective cooling systems. The magnitude of a statistically significant difference between operational and preoperational temperatures varies only           !
                                                                                    .1 slightly with season, but more strongly with time of day. At the 1% level,

59

 **                onshore coast warmer offshore Cook
    ~

LLi' 0 0 2 w a: LU I.I.. u. Q coast warmer LLI a: Pantades

    ~
    ~2 a:

LU a.

    ~

LU t-inland warmer 00 04 08 12 16 20 2400 04 08 12 16 20 24 HOUR, EST Fig. 7.3 As in Fig. 7.1, for the autumn season .

60 such a difference is about 0.5°C in the daytime, and between 1 .0 and l.5°C at night. As described above calculations with the Gaussian diffusion equations show that it is reasonable to be searching for a temperature change of that magnitude, especially in the winter season. When sufficient wintertime meteorological measurements have been obtained with the cooling

 . towers operating, such an analysis will be performed.
                                                                                \
                                                                                  '-f:}
                                                                                .* J

(

                                                                                  -I
                                                                               **    ,I
                                                                                  ,  \

_J

61 VIII. SEASONAL VARIATIONS IN RELATIVE HUMIDITY AND DEW POINT:

  • I A COMPARISON OF OPERATIONAL AND PREOPERATIONAL DATA by Michael R. Weber I

( Introduction A statistical analysis of differences in air temperature between t *' the preoperational and operational data periods at stations near both -<-- I the Donald C. Cook and Palisades Nuclear Plants was described in the

\ ' . previous section. The discussion below extends the analysis to include the moisture variables relative humidity and dew point.      Relative humidity and temperature are measured directly at each of the network stations, while dew point is derived from the concurrent values of temperature and relative humidity .
  • The method used in this analysis ts identical to that described above except that 1) humidity data begin in January 1974, whereas temperature data begin in February 1973, and 2) the wind direction I

I criteria for determining onshore and offshore winds have been changed

  \

I . to offshore (55° _:::.WO < 170°) and onshore (235° _:::.WO< 350°). The first of these differences was necessitated by the lack of reliable calibrations of the humidity sensors in 1973. It resu'lts in less preoperational data being included in the humidity analysis than in the temperature analysis. The second change was made to be consistent with other analyses in this report. It results in somewhat fewer cases being included in each '.'!ind direction category in the humidity analysis than in the temperature analysis.

62 Discussion The diurnal variation of the difference in relative humidity (6RH) between coastal and inland stations at both Cook and Palisades, with onshore and offshore winds, is shown in Fig. 8.1 for the spring season. The corresponding dew point difference (6DP) graphs are shown I in Fig. 8.2. The Cook 6RH curves for onshore winds show a distinct diurnal cycle, which is exactly opposite to the diurnal 6T cycle shown in the previous section. At night, when it is warmer near the coast j' than it is inland, the relative humidity is lower near the coast. *--1 The daytime relative humidity, on the other hand, is higher near the coast because the temperature is lower than it is* inland. The combina-tion of these effects is shown in the 6DP curves. It can be noted I I that the diurnal cycle of 6DP is small, implying thqt there is little diurnal change in the coastal/inland absolute moisture gradient in

  • spring.
                                                                           **~

The Cook onshore 6DP curves also show little difference between operational and preoperational data. Therefore, the apparently signi-ficant differences in daytime 6RH between the two periods are directly I

                                                                               'l  I
                                                                              '_ .i related to the significant 6T differences discussed previously. Those I

differences were attributed to naturally-occurring differences in .I ,.

                                                                                    )

cloudiness between the preoperational and operational periods. The Palisades 6RH curves for onshore winds show a diurnal cycle similar to that for Cook. However, the difference between the daytime operational and preoperational curves is not as large. This

ONSHORE OFFSHORE . 63 I ', ,i

\

12 16 24 0 12 16 24 {r , l ' /

             ~'o          a      12     1a   20
                                                     ~

2* 'o-1-----+----+----+12_ ____,1a>----20+-----l24 HOUR. EST HOUR, EST'

  • Fig. 8.1 Diurnal variation of the difference in relative humidity between coastal and inland stations at both Cook and Palisades, with onshore and offshore winds, for the spring season.

Shaded area shows 99% confidence interval on preoperational data. Positive differences indicate relative humidity . higher at coast than inland. Number of observations shown every six hours.

I i 64 . I ONSHORE OFFSHORE q q ei N N

       ~                                      ~
                                                                                       '1
                                                                                    \_.,

I s u >\. .. ( u w .-, zLJJ '/ a::o I I

   ~ci LL H

0

                                                                                              \

f-ZLO ( H* 00 ~* c... I

x LJJ 0

q ~:I 3 I I .. _;

                                                                       *99 I                                      I q                                      q                                        ..

N 10 12 16 20 N 24 10 8 12 16 20 24 I Q C/ I N N

                                              ~
               +99 i
                                                                                     . _\

u I

                                                                                             !/
                                                                                            \

_) Fig. 8.2 Diurnal variation of the difference in dew point between coastal and inland stations at both Cook and Palisades, with onshore and offshore winds, for the spring season. Shaded area shows 99% confidence interval on preoperational data. Positive differences indicate dew point higher at coast than inland. Number of observations shown every six hours.

65 ' *. feature, combined with the larger difference in daytime 6T at Palisades, contributes to 6DP curves which show significant differences throughout the afternoon. A major portion of these differences, however, is due to systematically higher dew points inland. This is also apparent r /' I, in the displacement of the offshore 6DP curves from one another; It is probably due to the systematic error in the temperature data i . discussed previously. / A feature of the operational Palisades 6RH curve for offshore winds which also is evident in the corresponding 6DP curve is the higher inland relative humidity from 0600-1200. There is no apparent meteorological explanation for this behavior. It may result from the small size of the operational data set, and the fact that due to the operating schedule of the Palisades plant, most of the springtime

    • . operational data come from late in the season .

The suinmer 6RH and 6DP curves are shown in Figs. 8.3 and 8.4, respectively. In all of the took graphs, there is little difference between operational and preoperational data for either onshore or

\.      offshore winds. As in spring, the diurnal cycle of 6RH with onshore winds is the inverse of the 6T cycle. There is also a diurnal cycle of
        ~DP  which indicates that the absolute amount of moisture in the air increases at the shoreline   rel~tive to inland  durin~-the afternoon.

This may be partly due to those lake breezes which pass the coastal i

\

I stations but do not penetrate as far as the inland stations. In such situations the coastal stations will be in the cooler and more moist

 \ .... lake air while the inland stations will be in warmer and drier land air. Sudden increases in dew point temperature associated with passage of lake breezes have been observed near Grand Haven, Michigan, by Ollson, et al. (1968).
                                                                                                                                        --         l CJ'\

CJ'\ REL HUMIDITY DIFFERENCE, PER CENT REL HUMIDITY DIFFERENCE, PER CENT

                              -12.00    -s.oo   -e.oo    -aoo    D.lMI       -12.llO     -alllJ   -e.ao   -aoo     a.oo 3.00 11.00 9.00 lO                                                                                                                                         0
z (f)

OJ  ::r: 0 I c: 0 w :Oi3 i3 :JJ rn m Ul

)::>  -t Vl a;                                                            Cii
l lO OJ
           ~                                                            ~

0

              -IB.llll -15.00 -12.00    -S.00
-ti 0
-s rt
T" ro Vl c

3 0 3 ro

-s    ::r:                                                                                                                               (f) 0 c:                                                                                                                                 I Vl   ::o-                                                                                                                                0
  • N ro :JJ PJ rn m Ul Vl -t 0
l Cii 'Cii
                                                                           *                                                 ~-**

OFFSHORE 67 ONSHORE

                                                                                                                               ~

0 N

 *         ~

3

                     \I         ::::
                                       +99 j
!\.
                                                                              ) ?\ ,,,
                                                                                          ..,,, .. 0*1. :::~
                                                                                                                               ~

3 1 I I I u (!)LI') UJ

  • cio \' : : lo:'<. ,c ~:  ::::::.

t>" ~ w u  ;'.::;:  :::: z ~ UJ f:i]Q u.O u. H

'"' *1 Tur a

I-

        ~"'?:                 V*
! LI')

oO  :;:: :*:*: d c.. I I

        ~

I UJ \

                                                                                                                   ? i !! 7
                                       'I 9~

Cl I q q I *:l J I

                                        -99
            '..'}                                                                                                             .'..'}

I

\.          q N

q N

            ~

1.0 4

                                       +99 8                     12          16              2ll q

N 24 IQ

                                                                                                                               ~
'1 4 8 12 16 20 24 3

I ~ u LI') d 0 d LI') d I

        ~

UJ Cl q I

            "'!                                                                                                                "'?

I -99 I

 **         q N

IO 8 HOUR, EST 12 16 20 Fig. 8.4 As in Fig. 8. 2' for the summer season. 0 N 24 ID 4 8 12 HOUR, EST 16 24.

68 The Palisades summer 6RH curves for both onshore and offshore winds have diurnal cycles which are inverses of the corresponding 6T curves. Although the onshore and offshore opera.tiona..1-* 6RH curves generally fall within the 99% confidence limits, they both have an I average relative humidity which is about 0.8% higher inland than . .f that for the corresponding preoperational curves. This systematic -1 shift is also seen in the 6DP curves, where both operational curves are at or near their respective limits for most of the day. Since both _).' onshore and offshore operational 6DP curves differ by about 0.5°C from the respective preoperational curves, no meteorological signifi-cance is attached. The autumn 6RH and 6DP curves are shown in Figs. 8.5 and 8.6, *'

                                                                                    ,- I respectively. The diurnal cycle of RH for onshore winds is pronounced            - .I i

again in this season. With* the lake keeping the coastal stations generally warmer than the inland stations in autumR.,..the curves are shifted towards higher inland RH compared to the other seasons. For both Cook and Palisades there is little or no difference between the operational and preoperational 6RH data for either onshore or offshore winds. Coupled with a corresponding similarity of 6T data, the Palisades 6DP data show no significant differences for onshore winds. The differences shown for Cook onshore 6DP, on the other hand, are apparently related to the systematic difference in 6T between the operational and preoperational data sets discussed previously. . __ ! ' Due to the lack of sufficient operational wintertime data, no comparisons have yet been made for that season.

0 d 2 I

i:

UJ CJ

                                                                  --~'
o. Q T T

__ '/ T If"? T

0. Q N N
  . 'o 8    12     16  20    24  'o                12     16 24 HOUR. EST                              HOUR, EST Fig. 8.6 As in Fig. 8.2, for the autumn season.

71 Conclusions Based on the data available and analyses made at this time, I there have been no detectable average increases in temperature, relative - humidity, or de*tJ point at stations near either the Donald C. Cook J or Palisades Nuclear Plants caused by operation of their respective cooling systems. The magnitudes of statistically significant increases in temperature, relative humidity and dew point are given by season and time of day for Cook and Palisades in Tables 8.1 and 8.2, respectively. It can be seen from these data that there is more consistency in the

      . daytime values of these variables. than in the nighttime values. Thus an avera~e  temperature increase of a.S°C, an average relative humidity increase of  3~6,* or an average dew point increase of a.7°C at the stations near either plant should be detectable during periods of onshore winds in these seasons by this method .
  • As indicated in the previous section, a temperature increase of a.S°C is the same order of magnitude as that predicted by the Gaussian. diffusion equations. The increase in relative humidity pre-dicted by them is shown in Table 8.3 as a function of ambient temperature and relative humidity. Except at very low temperatures, there is little dependence on ambient relative humidity. As with temperature, however, the largest predicted increases in relative humidity are at low temperatures. It thus appears that winter is the most likely season to detect either a temperature or a moisture effect by this statistical approach. It is also evident that the magnitude of

'l -

72 Table 8.1 Average magnitude of a statistically 5ignificant (99% confidence level) increase in temperature, relative humidity and dew point near the Donald C. Cook Nuclear Plant.

                                                                     .I
                                                                      ,*-*1

( I. Spring t:iT(°C) t:iRH(%) 6DP(°C) -i, J Day 0.5 2.8 0.7

                                                                         ~-\_

Night 0.7 3.7 0.7 Summer -- ( Day 0.4 2.9 0.7 Night 1.1 5.9 1.0 -1 Autumn

                                                                         ---\

Day 0.4 3. 1 0.6 Night 0.9 6. 1 0.9 Table 8.2 Average magnitude of a statistically significant (99% confidence level) increase in temperature, relative humidity e; and dew point near the Palisades Nuclear Plant

                                                                               )

Spring Day 0.5 2.8 0.7

                                                                               \

Night 1.1 6.9 1. 1 Summer i Day 0.4 2.2 0.6 I j Night 1.3 7.0 1. 2 Autumn Day 0.4 2.7 0.5 I Night 1. 0 6.7 0.8 __ I!

                                                                                /
                                                                                                                                           -:*~**
                                                                                                                               *~ ~

Table 8.3 Gaussian Diffusion Estimates of Increase in Realtive Humidity (%) at l km Due to Cooling Tower Operation Wind Speed = 2 m/s r~EL llUMIDITY T r.. M p E". F~ A T u r~ E. v r-.. () . 1 (). 20. 30. 40. ~.)() . l.1 () * /0. DO. l0.00 ll.1. 07 11.69 B.63 l.1.44 4. fl/ 3,73 2.90 2.30 l

  • flf.1 20.00 1 ~). 77 11.45 U.43 6.30 4.77 3 **~17 2. f:l9 2.33 :L. 92
30. ()() 1~).47 11.20 f:l. 24 6
  • 1 ~) 4.6? 3 **~11 2.BB 2. 3~::; :I.. 9/

40.00 l~5.J.6 J.().95 El. 04 6. ()() 4. ::'i6 3. ~.'i*1 2.Bf:i  :~ * ~:-s ~:_:; :I.. 99

=rn. oo :l.4.E1c1 10.70 7. 1:14 5.04 4.44 3.47 2. f:I 1 2.34 2. ():I.

f.10.00 14.55 10.45 7 * .!1:3 f.'i. 6f:l 4. 3:;~ 3,39 2. lt.1 2. 3:1. ~!

  • O~.~

70.00 14.24 10.1 17 7.42 ~.) * ~::; :L 4 .19 3.30 2. 70 2.20 ~-~.02 no.oo .t ~~. 93 9.93 7. 21. ~'i. 34 *1 * (),11 ~L21  ::.~ t \~)] 2 t ::.~ :*5 2. 00 lj> 0

  • 0 () :to.oo* 'J. 67 /. ()()  :~;. :I. *7 3.92 3. :t:L 2. !:5!:_:j 2. :I. 'I l. "i7
                   *saturated

74 a statistically significant increase in relative humidity detectable by this method is consistent with that predicted by the diffusion model. J

                                                                       *j
                                                                         \

75 IX* PRECIPHATION IN 1976 COMPARED WiTH CLIMATOLOGICAL NORMALS by Dennis F. Kahlbaum I ' II \ _, I Introduction I A concern in the operation of the large number of mechanical-draft cooling towers at Palisades is that the addition of 1arge amounts of heat and moisture into the atmosphere by them may increase cloudiness and precipitatior..

\

-~ .... As Carson (1976) points out in his review of recent findings, both natural I and mechanical-draft cooling towe.rs may cause such effects, but they are i \ . difficult to separate from natural variabilities. The Pali~ades cooling towers, because.of their location near Lake Michigan, are in a region where natural precipitation patterns and types are significantly affected by the

**           lake itself,. particularly in late autumn and winter.      A large natural variability in cloudiness and precipitation is the result .
                 .* To obtatn information on precipitation patterns and their natural. variability in the Palisades area, long-term precipitation data from representative i1lational Weather Service stations and* data from the .Pali sades network were analyzed both by season and by year.       The analyses for 1976 discussed below supplement those fon 1973, 1974, and 1975 discussed in previous annual        report~.*

Fig. 9. 1 shows the 1ocati ans of the network stations (numbered 1 through

13) and climatological stations used in the analysis. Shown beside each climatological station is the span of years for which it has precipitation data. It can be noted that record 1engths range from 14 years for Watervliet and Grand Junction to thirty years for most other stations. Those stations 11Jith record 1engths exceeding 30 yeq.rs have s ubstanti a1 di sconti nui ti es in records~

but data from these stations are considered sufficiently accurate for qualitative

01946-1975 AllEGAH

                                                                 @1962~1975 GRANO JUNCTION 01946-1975 BlOOMlNGOAlE C!J
                                                     ©    01924-1975 llANGOR
                           .1924-1975 COLOMA 0       01946-1975 l'AW PAW PAW PAW IN'WS)  (AG/2EJ 01962-1975 WATERVltfT Fig. 9. 1 Network artd cltmatolb9ital *stations used in precipitation analysis. 76
                                               '----   --~*
_ _ ..J
                                                                                                                          -~*-J' --.-...)

77 comparisons with network data for 1975 and l976 . Seasonal and Annual Distributions Winter. Precipitation for the winter of 1975~76 is shown at the bottom i of Fig. 9.2. Generally, it in.creased from the shoreline inland. In addition, \ ..~. large variability is evident. For *example, there is about one inch more pre-cipitation at stations #.1 and #2 than the average of stations #3, #10 and #4 even though they are separated by short distances. A comparison of the distribution of precipitation for the winter 1975-76

        \vith that based on climatology, which is shown at the top of Fig. 9.2, reveals good agreement. Both show an increase from the shoreline inland and a comparable

( . degree of spatial variability along the shoreline. However, the actual amounts of precipitation are quite different, as expected, because the 1975-76 winter had a much above normal amount of precipitation as discussed below.

    • Spring.

Fig. 9.3 The precipitation pattern for the spring of 1976 is shown in It is primarily the result of several thunderstorms which passed over the area. According to cooperative observers at several stations in the region, 14 thunderstorm days occurred during this season. Of these storms, 6 produced rainfall amounts in excess of 1.0 11

  • One storm, on May 20th, also produced hail .

Due to these storms, neither the distribution nor the quantity of pre-cipitation agrees with climatography. Whereas climatography shows an increase from the* coastline inland, the 1976 spring pattern decreases from the shore-line inland. In addition, the region in general received a much above normal amount of precipitation. Summer. The convective activity which occurred during the spring season carried over into s urrmer. According to cooperative observers, 15 thunderstorm*:

  • days occurred during thi~s amounts in excess of 1.0 11
  • season. Of these storms, 4 produced precipitation A storm on July 26th caused over 2.5 11 of rain in

78 i 7.0

                                                                                    *~.
                                                                                          *-.l I ~.    ~TI~
                                                         ."°°""""""
                                                                                /"'

v

  • 8.5 9.0
                                                                        /*~~~
                                                                                            )
                                                                                            )
                                                                                            "\

I J Oa.99

                                                       -~~*.o I
                                                                                            )

01.87 8.5 08.25 W4TU't'l.ltT

                                   ~

e_.s 8.0 o.o Fig. 9.2 Isohyets for winter 1975-76 and a climatological winter.

79 Jo

  • '. ~, ;>
                    .~o"""""""'**,.*',,,**""',t':,*'===':::'::':i'o'..
                                 : SPRiNG
                                                                       ,. '~ '

9.90:!;50 ll~l~

         .*'   ~ ..
   '.*o; 9.05:.71 (2) 00*)
  .*,                                                                            """°'

10.0 10.0 14.0 013.87 -* 013-27

                                                                                                             --------13,5 13.0 12.92 o      o*

P~w*=j' L, Fig. 9.3 As in Fig. 9.2, for the spring season .

80 --i I one hour at station #7. The effects of this activity are evident in the pattern shown in Fig. 9.4. The maximum precipitation area around #13 is noteworthy. A review of the rainfall records indicates that this maximum was not the re-

                                                                                        -1 sult of just one storm, but of 3 very local storms.       On June 12th, for example,    1 this station received 1.30 of rain while station #12, about 2.9 miles away, 11 received only 0.21  11
  • Another interesting feature of the distribution is the rapid decrease of precipitation toward the north. Cooperative observer records indicate that relatively little. convective activity occurred over that portion of the region.

As a result of this irregular degree of convective activity, the precipi-

                                                                                        -~l tation pattern for the    summer of 1976 bears little resemblance to climaiJO:graphy.

In addition, due to the spatial variability produced by the storms, some areas I I received much above normal rainfall, while other *areas received below normal amounts, a type of pattern which is typical of summer precipitation. Autumn. The thunderstorm activity present during the spring and surrimer seasons subsided rapidly during the e_~rly pa.rt of autumn. In all, only two thunderstorm days were reported. Nonetheless, their effects are readily apparent in the pattern shown in Fig. 9.5. The maximum precipitation area around Bloomingdale was caused bya*stonn on September 9th which produced nearly 1.5 of rain. 11 Aside from the Bloomingdale area, the region recieved uniform precipitation. Such uniformity- is also evident in the climatography. However, it can be noted that the amounts of precipitation during thi~ season are significantly less than climatography. i I

81

                                             .0
            ','  *'t' Ml\.f$,. ' . .                                               ...

10.16:..61 c2c,~ 9.99:.67 0

                                          ~DJ                              ..

10.D 9.66=68 Q (14) I WAHM.llT o 9.~Igr2 llMlONM.UIOI 10.0 I.

                                                                '\   ~,,;*
    • ~/6.0 Fig. 9.4 As in Fig. 9.2, for the summer season.

82

                                                                                                                              .l 10.0       9.5             9.0             a.s      a45:!;.53
                                                                                                         \ 0       (30) t OM
                                                             """"""""""      0
                                                                                  'i.25~

(30)

                                                                            ""°"'.._..

l

                                                                                                                                 -1  !
                                                    '1711~.44 0
                                                @    )(1B)

U.5r.62 0

                                             /

0 *.-i 0 (30) COLOM.A 8Jl2~2

                                                                                             ,s>,!!. ,,.~_,,,,l30)
                                                                                                     """"                      I     I 9.76~2
                                                                                                                                      /,

0 (14) WATHVU!T _l 9.0 ... 9.5 9.0

                                                                                                                                    ")
                                         ~*.o
                                                                               ....                           06.94 I

el

                                                                                                                          ...       I

__l 60

                        '*~~.'. fj*                                                                                      6.0
                          ~~~31     3(1)61}4
                          ©M©~6.0"
                             @0.0 705.02"\                                                                                           \

__\ 05.77

                                      £ 06.00    o::.w 2                06.60 WAT(Ml!T
                                      ~
                                                                                              ~~                                    I b  ....                 3                                    ...                                                    .!

i Fig. 9.5 As in Fig. 9.2, for the autumn season.

83 Annual. The precipitation distribution for the year 1976 is shown in Fig. g_,6:. Interestingly, even though the year had 31 thunderstorm days, the general pattern is similar to climatography not only in distribution but !.__ also in the quantity of precipitation. Both show an increase from the coastline to near the Bloomingdale/Bangor region, then a gradual decrease further inland. , In addition, mast stations had precipitation amounts nearly equaling their clima-tological counterparts. Hm1'ever, due ~o the convective activity, large spatial variations are still evident. The 3.14 11 less precipitation at station #3 than c ( at station #2, even though they are separated by only 1.4 km, is notable. Departures from Normal Table 9.1 summarizes the seasonal and annual totals for the Palisades network area for 1976. The totals for the Palisades network were obtained

j. by averaging the seasonal totals for each station. The totals for South Haven, the nearest representative NWS cooperative station, .are taken from Climatological Data (U.S. Environmental Data Service, 1976).

Climatologically, according to data from South Haven.winter is the driest season and summer is the wettes:t. In the period from December 1975, through November 1976, however, spring was the wettest season and autumn was the driest for both South Haven and the Palisades network. Since only a limited number of seasons of data can be obtained from the network, it is important to know how representative the seasons of operation are of average long-term conditions. The probability of occurrence method

    *used by Baker and Ryznar (1974), was used here to determine the significance of 1976 departures from normal. The departure classes into which the seasonal and annual totals fell are given in Table 9.1 . All in all, 1976 received near    normal precipitation. The much above normal amounts of precipitation
  • in winter and spring were balanced by the below normal amounts in summer and autumn. A preliminary assessment of some differences among stations in terms of possible cooling tower effects is given in the next section.

84

                                  /

Ji::""'"""~=l.02 .\

                                                    ~

3 c7.:za:.us 0 3l I _l I 034.17 035.46 J I

                                                                                ..I l
                                                                      ~35
                                                                                 .J
                                                             \
                                                                   ~36 37 37 i'

_) Fig. 9.6 As in Fig. 9.2, for th e calendar year.

                                                                       / *----....

TABLE 9.1 Total Precipitation and Departure from Normal for the Palisades Network and South Haven Palisades Network South Haven Average Total Climatolorical for Network 1976 Norma Depai:-ture Season {inches) (inches} {inches) Departure Class Winter 1975-76 7 .18 8.26 6.48 +l.78 Much Above Spring 1976 13.93 12.78 8.85 +3.93 Much Above Summer. 1976 9.75 7.75 9.65 -1.90 Below Autumn 1976 6.38 6.24 8.74 -2.50 Below Annual 1976 35.55 32.75 33.82 -1.07 Normal 00 01

86

x. A PRELIMINARY ANALY.SIS OF OPERATIONAL ANO NON-OPERATIONAL PRECIPITATION DATA THROUGH 1976 by Dennis F. Kahlbaum Introduction Of the possible meteorological effects due to the mechanical draft cooling towers at the Palisades.Plant, a modification *of the precipitation is, perhaps, the most difficult to detect because of the already high natural variability of precipitation. Such natural variability was discussed in the pre.vious sec-tion. Detection of any modification is further hampered by the fact that,
                                                                                            ]

like other meteorological variables, precipitation is not normally distributed. According to Huff (1971) and Brooks and Carruthers (1953), the lower boundary of zero gives it an approximate log-norma 1 or a gamma di stri buti on. Thus, be- . --] cause of this non-normality, classical statistical methods which assume nor-ma 1ity (such as the "Student 1 s 11 t-te.st) cannot be used on preci pi tati on. Numer-ous techniques have been applied in order to normalize precipitation data, but all have failed, (see Hess, 1974 for a listing). Therefore, a statistical test which is independent of the sample distribution is required. The Wilcoxin- _{ Mann-Whitney statistical test was chosen here because it: __ J

1) is independent of the sample distribution
                                                                                               \
2) can be used on samples of unequal sizes i
                                                                                            .* J
3) abstractly uses magnitude by its utilization of ranks
4) is as. powerful as the t-test when dealing with non-normal distributions _J (Lehmann, 1975).

Other researchers are currently employing the Wilcoxin-Mann-Whitney statistic in precipitation modification experiments (Patrinious, 1978 and Vogel, 1978, per-sonal communications). In this study, daily precipitation data from the period October, 1972 through November, 1976 inclusive for both the Palisades Network and surrounding National ~,

87 Weather Service Stations were used.

  • To obtain the Wilcoxin-Mann-Whitney statistic from this data set, the following steps were applied to each station individually in order to eliminate any raingage exposure effects:
1) All days with zero precipitation are ignored.(This removes the obvious bias of no effect, since precipitation must be available in order to be r~

modified.) (

2) The precipitation days are grouped by season.

r

3) The precipitation days are* either coded 11 operational 11 or 11 non-operational 11 depending on the plant 1 s status.
4) The precipitation days are then ranked in order of increasing amount r

I without regard to plant status.

5) The ranked data are then separated according to the operational status of t

[ . the plant.

6) *The number of observations in each group is counted and the ranks summed.
7) The Wilcoxin-Mann-Whitney statistic is then computed from the following formula:

WMWS= N N + Nl(Nl+l) 1 2 2 - I Rl I . where: WMWS is the Wilcoxin-Mann-Whitney statistic N1 is the size of sample 1 N2 is the size of sample 2 E R is the summation of the ranks pertaining to sample 1 (Hewlett-1 Packard, 1975).

8) A significance is then determined from this statistic and compared to a predetermined confidence level after which a decision is made.

The null hypothesis tested by the Wilcoxin-Mann-Whitney statistic is: Ho: The mean daily operational precipitation equals the mean daily non-

 ~        operational precipitation.     (EG. Ho: U1=U 2)

88 This hypothesis can be rejected if either of the following conditions occurs: WMWS (Sample) > WMWS (1-a/2) or e: WMWS (Sample) < WMWS (a/2) J I Recent research has shown that this classical use of the statistic is not

                                                                                      )

always required to determine a modification. Instead, the relative magnitude of the significance level can be interpreted as an indicator of a possible difference (Lindmann, 1974). Both of these interpretations will be employed in the following discussion. To aid in showing the results, the significance level a is given as a percent- _( age. This percentage refers to the probability of rejecting the null hypo the-sis. Moreover, a difference is considered significant whenever this probability is 90% or greater. Discussion Winter. The statisti~s fQr the winter season are shown in Fig. 10:1. They display an increase in the rejection probability toward South Haven. However, the 84% level at that site is too low to cause rejection of the null hypothesis. Thus, at this time, no significant differences can be found between operational and non-operational precipitation for this season. However, this conclusion is based on only 14 operational precipitation days,,which are considered too ) _j few to enable a valid conclusion to be drawn. i Spring. The probability pattern for the spring season is quite variable \

                                                                                     )

as shown in Fig. 10.2. Significant differences in daily precipitation can be found at South Haven and Bloomingdale. Elsewhere, low probability levels J. prevail, especially at station PlOA. The high values at South Haven and Bloomingdale correspond to differences of 0.23 and 0.36 inch per. precipitation day, respectively. Such large increases for the operational period are probably the result of the very heavy thunderstorms which occurred during 1975.

                                        @45 046 40 0     0 PAW PAW PAW PAW (NWS)  (AG/lE) 40 0

WATERVLIET 0 316 311 315 0 0 10.l Percent probability that winter mean daily precipitation differs between non-operational and operational periods.

082 ALLEGAN ID 0 90 0 GRAND JUNCTION G99 BLOOMINGDALE 0 0 PAW PAW PAW PAW (NWS) . (AG/2E) 2~~RVLIET 060 ---------- £ BENTON HARBOR 315 0 ,_. '--..--~-*

                   \ ____

Fig. 10.2 As in Fig. 10.l, for the spring season.

                                         - - * -. l--'    '-~:
                                                                      *, __  ) {_____ .J l.-   '

J

                                                                                                                               ,___ ___ )
                                                                                                                                           --- __ )
}                                                                                   91 Summer. The statistics obtained for the summer months reveal a highly
\

I . ordered pattern.as shown in Fig.10.3.The highest probabilities for rejecting the hypothesis of equal means are in an arc surrounding the Palisades Plant. c--- The magnitudes of these probabilities (>95%), as well as the fact that the

 )

( differences are positive, indicate that the precipitation in the operational period is approximately 0.16-:inches per precipitation day more than in the non-operational period. Although it indicates a significant change, the Wilcoxin-r--

c. Mann-Whitney statistic does not provide the reason for this increase. One possible explaination is that the injection of heat and moisture from the
)

'- cooling towers is enhancing precipitation downwind, but natural causes could ) be responsible. A better understanding of the reasons for the increase will result from an analysis of the 1977 summer precipitation characteristics. Autumn. The pattern obtained for this season is extremely variable as shown in Fig.10.4.As found in the winter season, the magnitude of the probabilities is too low to cause rejection of the null hypotheses. Thus statistically, no significant differences can be found for this season. Conclusions The Wilcoxi n-Mann-Whi tney statistic has been applied to daily preci pi tat ion data from both network and National Weather Service stations in an attempt to determine if any significant differences occur between operational and non-operational periods. For the winter, spring and autumn seasons, some stations indicated differences, but no consistent pattern was discernible. However,

  • - during the summer season, significant differences occurred in an orderly pattern around the Palisades Plant. At this time, it is uncertain if the l.__.

heat and moisture emitted by the cooling towers is the cause of the observed increase. Analysis of additional operational data will aid in -determing the

    • cause .

30 026 l..O N Allro>.N BENTON HARBOR

                            ----40" 30 311          315 0           0 Fig. 10.3 As in Fig. 10.1, for the summer season .
    • \ ___ _ '--*
                                                                  )
                                                                        )

_) .-

                                                          **--~-.

0 b PAW PAW PAW PAW INWS) (AG/2E) 0 0 312 WATERVLIET 0 316 311 315 0 0 u:> w Fig. 10.4 As in Fig. 10.l, for the autumn season.

r-- 94 XI. DIURNAL VARIABILITY OF PRECIPITATION by Dennis G. Baker The study of climatological and statistical characteristics of precipitation discussed in the preceding sections has been extended to include a study of the diurnal variability of precipitation. It is similar to that reported in Baker & Ryznar (1976), which determined the diurnal precipitation variations at Coloma, Berrien Springs, and Muskegon us~ng ten years of hourly precipitation reports. A harmonic analysis of these data revealed that for all three stations and all seasons, except summer, a 24-hour period predominated with maximum accumulation around 0300 EST. No predominant period was evident in summer. In addition, in summer the patterns for Coloma and Berrien Springs were alike, but Muskegon departed significantly, especially in ._\- the afternoon. However, since Muskegon is quite far north of the net-

                                                                                 .i works, the Muskegon results may not be valid for the Cook or Palisades areas.                                                                       __ ;

Also in this previous study, one year of network data was examined I but found to be insufficient to determine any diurnal periodicity. J This section updates the previous study by -examining the four years of network data now available. The four-year data period extends from December 1972 through November 1976 using amounts of precipitation for hourly intervals categorized by season. If data are missing at a particular station, data from the nearest station with good data are used. Since very little I precipitation data are missing, this procedure is probably justified. The data for all stations in each network are averaged to obtain a network

95 average. The individual station results were also examined for changes in the diurnal variations from the coast inland, but no such variations were found. A three-point smoother was applied to the data to reduce the high frequency variability of the results. For each season the total precipitation amount for each hour of the day was calculated. Also calculated was the total precipitation resulting from adding together only those hours with hourly amounts of ..::_.10 inches and hours with >.25 inches. These total*s were then divided by the number \ .

         . of days in the sample to give the average daily precipitation amounts.

Plots of these values are given in Figure 11.1. The curve for <. l0.11 1* L. represents contributions from light rain situations while the >.25 11 curve represents contributions from heavy rain. Since heavy rains are 1.... - almost always associated with convective activity, the latter curve is a measure of the importance of convective activity in enhancing precipita-tion. A harmonic analysis of the total precipitation is summarized in Table 11.1. Only the most important period is given. For this period, its length, amplitude, percent of the variance explained, and the tim~ of maximum are given. The results for each season are discussed separately below. Winter: l I l .. The diurnal precipitation variations for the Cook and Palisades networks are very similar except for a small decrease lasting several I \. hours around 1700 EST in the Cook network which does not appear for the Palisades network. Both networks have their maximum hourly precipitation at 0600 EST and minima in the late morning. A secondary maximum is evident around 1800 EST, especially for the Palisades network. The diurnal pre-11

    • ci pi tati on curve for hours with >. 25 or more of preci pita ti on indicates

96 WINTER SPRING

           ,90
           ,80
            ,70
            ,60
                                                                                           ,' \ '
            .so                                                                       '\ .,,      \
                                                                                                    \
            ,40
                                                                                                         \
                                                                                                           ' ' ....... ,   I v
            ,30
             ,20 k
I 0
  .<:::                                                                                                                                 .I k,10
    <V 0.

UJ

     <V       0 0
  *.-1*                                                                                                     AU'IW1N
  ....0
    § .BO
  *.-1
    .j.l C1l
    .j.l
   *.-1
   -~ .70 0
     <V k

p.,

        >< .60
    ....k
        ;:l 0
i:: ,50
        <V O'
        "'~ ,40 k               ,,                                                                                                               \
                                                                                                                                      -..I
                    /~\j  \
     ..:                    I                                                                                                      ,
                             '                                                                                                 / '
              ,30             "
                               '.........                               I
                                                                         ,-,I I     I I      I I          I I           \
               ,20                                                I I

1 I ' I \

                                                       ,,                                                                             .J
                               \
                                                     ,' \
                                                          '\ ,
               ,10               \  __ ',  ,,,--\/,'        ,,

O mid 06 12 18 mid 06 i2 l Hour (EST) Fig. 11. 1 Average hourly precipitation.

-~-~ 97 ( . Table 11. 1 Harmonic Analysis of Average Hourly Precipitation Cook Network Palisades Network MKG Berrien Springs Winter Predominant Period (hr) 12 12 24 24 explained variance (%) 43 67 47- 62 ( . amplitude I (. 01 inch) .050 .069 .042 .049 l . time of max (EST) c* (first max after \ . midnight 0415 0440 0400 0350 S~ring (. Predominant l Period (hr) 24 24 24 24 explained

e variance (%)

amplitude ( . 01 inch) 58

                             .112 70
                                               .148 89
                                                          . 103 64
                                                                         .069 time of max (EST)

(first max after midnight) 2020 1910 0105 *0255 I

 \  .

Summer Predominant Period (hr) 24 24 24 12 ( . explained variance (%) 45 46 50 41 amplitude (. 01 inch) .088 .118 .074 .071 time of max (EST) (first max after* midnight) 2220 2130 0245 0605

~ 98 *1 1 Cook Table 11. 1 (Continued) Palisades Berrien

                                                               ]
                                                               --i Network        Network        MKG  Springs      .!

Autumn *1_, Predominant * --, Period (hr) 12 24 24 24 _l explained I variance (%) 44 44 42 53

                                                                 .\

amplitude (. 01 inch) - . 041 .054 .037 .082 -1 _J time of max (EST) (first max after -,_ midnight) 0350 0330 0010 0550 eJ _j I __\

99 that the primary nocturnal precipitation maximum results mostly from increased convection during these hours. The harmonic analysis shows that a 12-hour period predominates. The results for the 10-year data period for Muskegon and Berrien Springs have a predominant 24-hour period. The curves for these stations, corresponding to Figure 11.1 (given in Baker & Ryznar, 1976), have the

r. primary, nocturnal peak, but do not have the secondary afternoon peak.

These differences probably result from only four years of data being used in this analysis.

  • Spring:

The shapes and magnitudes of the curves for the Cook and Palisades I - ' areas are very similar. The major peak in precipitation is in the late i. afternoon with a minimum around noon. around 0600 EST. There is a minor secondary maximum The curve for >. 25" of preci pita ti on stJggests most of the observed diurnal variation results from convective activity. The harmonic analysis shows that a 24-hour period predominates. The result~ for the Cook and Palisades networks are similar to the 10-year averages for Muskegon and Berrien Springs except for the time of maximum. The

'*. maximum for the long-term stations is around 6 hours later in the evening.

r

  • The reason for these differences is not clear, but probably relates to the length of the sampling period.

Summer: The curves for the Cook and Palisades networks are*again similar, although the precipitation in the Cook network is less than in the Pali-sades network for almost every hour. A substantial amount of the diurnal

  • variation is evident in the >.25 11 contribution implying that

1-- 166 convective activity is the major contributing factor. The harmonic analysis shows that the results for the Cook and Pa 1i sades networks agree. better with Muskegon than with Berrien Springs even though Berrien*Springs is within the Cook network. However, as was found for springtime, the times of the maxima are much later in the evening for Muskegon than for the -, two networks. ( I

                                                                                       .l Autumn:

The curves for the Cook and Palisades networks differ more in autumn than in the other seasons. Although both have maxima around 0200 EST, Cook has a secondary maximum at 1600 EST while Palisades has two maxima,

                                                                                     *1
                                                                                      *. J one at 1000 EST and the other at 1600 EST.      The Cook secondary maxima               I

_I is evident in the .:_.25 11 curve, but the primary maximum appears to come from hours with precipitation totals between .10 11 and .25". The harmonic analysis shows a predominant 12-hour period for the Cook network and a predominant 24-hour period for the Palisades network. In summary, although four years is too short to be representative of long-term conditions, some features are similar to the 10-year averages for Muskegon. Much of the observed diurnal variation a~pears to result from convective activity regardless of season. I J I I _j

l 01 REFERENCES

    • Baker, D.G., and E. Ryznar, 1976~ Coastal Meteorology in the Vicinity of the Donald C. Cook Nuclear Plant: A Preliminary Analysis. Department of Atmospheric and Oceanic Science, University of Michigan, *68 pp.

Baker, D.G. and E. Ryznar, 1974: An investigation of the meteorological impact of a once-through cooling system at the Donald C. Cook Nuclear Plant. Second Annual Report, DRDA Project 320157, The University of Michigan, 68 pp. Brooks, C.E.P. and N. Carruthers, 1953. Handbook of Statistical Methods in Meteorology. Her Majesty 1 s Stationery Office, London. Carson, J.E., 1976: Atmospheric impacts of evaporative cooling systems, Argonne National Laboratory Report ANL/ES-53, 48 pp. Hanna, S.R., 1974: Meteorological effects of the mechanical-draft cooling towers at .the Oak Ridge Gaseous Diffusion Plant. Air Resources Atmospheric Turbulence and Diffusion Laboratory, Oak Ridge, Tennessee, 39 pp.

  • Hess, W.N. 1974: Weather and Climate Modification, John Wilcox & Sons, New York.

Hewlett-Packard Co., 1975: Statistical Applications; from J.L. Freund, 1962, Mathematical Statistics*, Prentice-Hall . Huff, F.A. 1971: Evaluation of Precipitation Records in.Weather Modification Experiments, Advances in Geophysics, V. 15,

          *Academic Press, New York.

Jones, A.L.,* 1971: Diseases of tree fruits in Michigan, Michigan State University Extension Bulletin E-i14, 31 pp. Lehmann, E.L., 1975: Nonparametrics: Statistical Methods Based on Ranks, Holden-Day, Inc., San Francisco. Lindman, H.R., 1974: Analysis of Variance in Complex Experim~ntal Designs, W.H. Freeman & Company, San Francisco. Lowry, W.P., 1977: Empirical estimation of urban effects on climate: a problem analysis. J. Appl. Meteor.,~. 129-135. Lyons, W.A. and L.E. Ollson, 1972: Mesoscale Air Pollution Transport in the Chicago Lake Breeze. J. Air Poll. Control Assoc., 22, 876-881. Olsson, L.E., A.L. Cole and E.W. Hewson, 1968: Observed land and lake breeze circulation on the eastern shore of Lake Michigan, 25 June 1965. Tech. Report, ORA Project 08650, The University of Michigan, 93 pp.

  • Patrinous, A., 1978. Personal Communication Ryznar, E., 1978: An observation of cooling to11Jer plume effects on total solar radiation, Atmos. Env.,g, 1223-1224.

102 Ryznar, E., D.G. Baker, and H. Moses, 1976: Coastal meteorological net-works to determine effects of nuclear plant cooling systems. Bull. Am. Meteor. Soc.,.§_§_, 1441-1446.

                                                                            .:-1 Ryznar, E., M.R. Weber, and D.G. Baker, 1975: An investigation of the meteorological impact of mechanical-draft cooling towers at the Palisades Nuclear Plant. Third Annual Reoort, DRDA Project        *1 320158, University of Michigan, 59 pp.                               ,\

Ryznar, E., M.R. Weber, O.F. Kahlbaum, and W.G. Snell, 1977: An investigation of the meteorological impact of mechanical-draft cooling towers at the Palisades Nuclear Plant. Fifth Annual Report, DRDA Project'320158, University of Michigan, 103 pp.

                                                                              .l U..S. Atomic Energy Commission, 1972: Environmental Statement for Palisades Nuclear Generating Plant. Docket No. 50-255.

J U.S. Atomic Energy Commission, 1973: Environmental Statement for -,, Donald C. Cook Nuclear Generating Plant. Docket Nos. 50-315 ' and S0-316. i U.S. Environmental Data Service: Climatological Data from 1976. Van der Hoven, I., 1967: Atmospheric transport and diffusion at coastal sites. Proceedings of the USAEC Meteorological Meeting, Atomtc Energy of Canada Limited, Chalk River, Ontario, 229-237. Voge 1 , J. , 1978. Per*sona 1 Commun i ca ti on.

                                                                             . _)

l 03 APPENDIX A NETWORK DATA COLLECTION Percentages of possible data recorded for each month between April 1977 and 31 March 1978 are given in Table lA. The percentages listed for precipitation, temperature and relative humidity are monthly averages for the 13 network stations, and those listed for solar radiation, wind speed, wind direction and visibility are for each of the two main stations.

  • The general pattern of data recovery experienced in past years was repeated in 1977-78 in that recovery was excellent in the warm

[ months and deteriorated in the coldest months. Several heavy snowstorms, for example, not only did not allow the network to be serviced on schedule, but led to measurement problems such as

    • frozen wind sensors.
  • A calibration schedule was maintained throughout the year.

Each hygrothermograph was calibrated in a humidity chamber at least twice and weekly checks with a psychrometer were made at each station. Humidity adjustments were not made in the field, however. Twice during the year the wind speed recording systems were returned for calibration in the University of Michigan wind tunnel used for testing and calibrating micrometeorological instrumentation. Linearity checks were performed on the wind direction systems semi-annually. At the end of the 1977-78 contract year all equipment was de-commissioned except for that at the two main stations. It \'lill be re-activated by 1 November 1978 so that one more winter of measurements can be obtained with the cooling towers operating .

Table A.l Percent Possible Data Recorded in 1977-78 1977' 1978 Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Precipitation 99 98 93 93 96 93 98 93 86 85 66 93 Temperature 99 97 98 93 95 97 98 98 99 93 94 100 Rel. Hum. 99 97 97 91 94 97 98 98 99 93 94 100 Solar Rad. P03A 100 99 100 100 100 100 100 100 100 97 100 100 P07A 100 100 67 96 99 100 100 100 98 100 20 59 Wind Dir. P03A 100 97 100 94 100 100 100 100 100 60 0 0 P07A 100 100 100 94 100 100 100 100 90 15 84 100 Wind Speed P03A 100 100 73 94 100 100 100 88 73 80 6 0 P07A 100 100 93 94 100 100 100 100 41 13 73 96 Visibility P03A 100 100 100 100 100 100 84 98 79 34 76 100 P07A 100 100 100 100 100 100 92 98 90 18 0 0

      • t_ __ _ l __ --~
                                                         '*.--*     : ____ J ..___ ____ i     __ )      _._,
                                                                                                            **:___ )
                                                                                                                     .______)'

105 APPENDIX 8 I PROJECT PUBLICATIONS AND REPORTS Journal Articles and Papers Ryznar, E., D.G. Baker and H. Moses, 1976:* JICoastal meteorological' networks to determine effects of nuclear plant cooling systemsJI. Bull. Amer. Meteor. Soc., 2.Z_, 1441-1446.

         --...,~-~
                    , 1977: JIAdvection-radiation fog near Lake Michigan.JI Atmos. Env., l!_, 427-730.

\ , 1978: JIAn observation of cooling tower plume effects ' -----=- (. on total solar radiation.JI Atmos. Env., J1., 1223-1224. i

l. Weber, M.R., 11 Average diurnal wind variation in southwestern Lower Michigan. 11 J. Appl. Meteor.; (in press).

Weber, M.R., 11 Seasonal variations in temperature in the vicinity of two nuclear power plants: a compariso'n of operational and preoperational data. 11 Presented at the American Meteorological Society Conference on Climate and Energy, May 1978, and published in proceedings.

  • Moses, H., D.G. Baker, E. Ryznar, and D. Young: 11 A comparison of the amounts of solar and wind energy available. 11 Presented at the American Meteorological Society Conference on Climate and Energy, May 1978, and published in proceedings.

i Annual Reports I l All annual reports come under the general heading of JIAn investigation of the meteorological impact of mechanical-draft cooling towers at the Palisades Nuclear PlantJI, DRDA Project 320158, University of Michigan. I 1973 Ryznar, E. and D.G. Baker: First Annual Progress Report, 42 pp.

~      .

1974 ---- and D.G. Baker: Second Annual Report, 78 pp. 1975 M.R. Weber, and D.G. Baker: Third Annual Reoort, 59 pp. 1976 , M.R. Weber, D.G. Baker and D.F. Kahlbaum, Fourth Annual Reoort, 102 pp. 1977 , M.R. Weber, D.F. Kahlbaum and W.G. Snell, Fifth Annual Report, 103 pp . Data Reports 1975 Ryznar, E., D.G. Baker, M.R. \>/eber, R. Kessler, and J.A. Baron: Data Report No. 1: Summary of Meteorological Measurements for the Period October 1972 through June 1973. 99 pp.

106

   . 1975 Weber, M.R., R. Kessler, W.G. Snell, D.C. Dismachek, and D.F. Kahlbaum: Data Report No. 2: Summary of Meteorological Measurements for the Period July 1973 through December 1973. 100 pp.    .~

1976 Weber, M.R., R. Kessler, W.G. Snell, D.F. Kahlbaum: Data Report No. 3: Summary of Meteorological Measurements for the Period Janua~y 1974 through December 1974. 172 pp. 1976 Snell, W.G. and D.F. Kahlbaum: Data Report No. 3.1: Summary of Temperature and Humidity Measurements for the Period January 1974 through December 1974. 37 pp. l 1977 Weber, M.R., D.F. Kahlbaum, R. Kessler and C.R. Wilkes: Data Report No. 4: Summary of Meteorological Measurements. for the Period January 1975 through December 1975. 215 pp. 1977 Weber, M.R., D.F. Kahlbaum, R. Kessler, G.J. Rizza*, M. St. Peter and C.R. Wilkes: Data Report No. 5: Summary of Meteorological .. J Measurements for the Period January 1976 through December 1976. 220 pp.

                                                                                 -~  '

_J

                                                                               ~

_i

  • Science & Technology ii II I . '

Measurements and Vegetational Impact of Chemical* Drift from Mechanical Draft Cooling Towers -* John J. Rochow Department of Environmental Services, Consumers Power Co., Jackson, Mich. 49201

  • Volume 12, Number 13 Pages 1379-1383 December 1978 Copyright© 1978 by the American Chemical Society and reprinted by permission of the copyright owner

Measurements and Vegetational Impact of Chemical Drift from Mechanical Draft Cooling Towers John J. Rochow Department of Environmental Services, Consumers Power Co., Jackson, Mich. 49201 saccharum Marsh.), and beech (Fagus grandifolia Ehrh.),

  • Collection and analyses of precipitation prior to and after typical of much of the successionally advanced sand dune cooling tower operation at the Palisades Plant in southwestern communities along the eastern shores of Lake Michigan.

Michigan resulted in high deposition rates of sulfate and However, the forests surrounding the cooling towers are calcium up to 92 m from the towers. Sulfate deposition rates dominated by red oak, white pine (Pinus strobus L.), sassafras during operation averaged up to 9.0 g m- 2 month- 1 in areas (Sassafras albidum [Nutt.] Nees.), and white ash (Fraxinus within 50 m of the cooling towers and decreased to 0.61 g m- 2 americana L.), typical of earlier successional communities on month- 1 between 700 an.cl 1609 m. Calcium deposition rates stabilized sand dunes. during operation averaged up to 4.5 g m- 2 month- 1 in areas within 50 m of the cooling towers and decreased to 0.57 g m- 2 Experimental month- 1 between 700 m and 1609 m. The high sulfate depo-sition rates were assumed to be responsible for severe vege- Twenty-seven Tru-Chek (Tru-Chek, Rain Gauge Div., tation damage within 92 m of the cooling towers. Examination Edwards Mfg. Co., Albert Lea, Minn.) rain gauges (stations) of chloride deposition rates showed that most affected areas were installed on 1.5-rri posts at various distances from the cooling towers (Table I). Twenty-three experimental gauges did not receive sufficient amounts to cause vegetation damage. Sulfate and calcium deposition rates were fitted to a multiple were located from 30.5 to 183 m from the cooling towers and regression equation using several independent variables. four control gauges ranged from 670 to 1609 m from the towers Plotted regression lines showed that 64% of the sulfate and (Table I). Fourteen of the experimental gauges were located 47% of the calcium fell out within the first 92 m. under the forest canopy, and nine in the open. Two control gauges were located under the forest canopy, and two in the open. During the months when temperatures were below freezing (November-April), 82 mL of a 50% ethylene glycol-The quantity and extent of drift from wet cooling towers 50% methanol (by volume) solution was added to the gauges. have been addressed and modeled by several investigators. The solution approximated the density of rain water, and as Chen (1) has recently reviewed 10 of these models. However, precipitation was added, self-mixing occurred to prevent a few investigations have encompassed actual.field measure- stratification and subsequent freezing. To prevent insects and ments of drift and assessed the resultant effect of drift other detritus from entering the gauges during the summer chemicals on the terrestrial environment (2). months, a cone was fabricated from fiberglass screen and in-The present study was designed to measure the quantities serted into the gauge. During all months, 5 mL of mineral oil of drift chemicals (calcium, sulfate, and chloride), assess was added to the gauges to prevent evaporation. Preexperi-their effects on vegetation, and model their deposition pat- mental tests showed that 5 mL of mineral oil reduced evapo-terns around the mechanical draft cooling towers at the Pal- ration from the gauges to about 1% of the average monthly isades Nuclear Plant site (Consumers Power Co.) on Lake precipitation. Michigan in southwestern Michigan. Two cooling towers each Monthly collection of precipitation was conducted from with 18 cells were constructed during 1972-73 as a retrofit to January 1973 through December 1976. The precipitate from the plant, which was initially designed and operated with each gauge was recorded and poured into polyethylene bottles once-through cooling using Lake Michigan water. Each and transported to the Consumers Power Co. laboratory for cooling tower is 198 m long, 15.2 m wide, and 19.8 m high and analysis. At the laboratory each water sample was measured is designed to cool 757 000 L min- 1 of condenser cooling water. for volume and analyzed for calcium, sulfate, and chloride The design drift rate is estimated to be between 0.005 and 0.2% content. Calcium was determined by atomic absorption with (3). 0.5% lanthanum oxide added to a 10-mL sample. Sulfate was Sand dunes that rise up to 61 m above Lake Michigan sur- determined using the methylthymol blue method described round the cooling towers. These dunes are classified as the by McSwain et al. (4). Chloride was determined by the mer-coastal blowout type that is generally aligned at right angles curic thiocyanate-ferric nitrate method (5). to the shoreline often with very steep slopes. The cooling Sulfate and chloride were selected for analyses because towers were constructed in interdunal depressions; conse- sulfuric acid and sodium hypochlorite, respectively, were to quently, much of the surrounding terrain is at a higher ele- be added in substantial amounts to the cooling water. Calcium vation than the top of the cooling towers. was selected for analysis to serve as an indicator of the relative The dominant forest community at the Palisades site is increase in concentration of all natural Lake Michigan water

 *comprised of red oak (Quercus rubra L.), sugar maple (Acer       chemicals due to cooling tower evaporation and their subse-Volume 12, Number 13, December 1978       1379

Table I. Palisades Cooling Tower Drift: Monthly Mean United States. In the vicinity of the Palisades site, natural Deposition Rates precipitation totaled 221 cm for the 32-month nonoperational period, or an average of 83 cm per 12 months (6). shortest distance from (g M- 2 month-1) Calcium deposition measurements at the Palisades site, on coollng tower sulfate: calcium the other hand, show a rate over three times that reported for (m) (+/-95% Cl) (+/-95% Cl) stations in northeastern United States (7), 0.17 g m- 2 month- 1 nonoperational vs. 0.056 g m- 2 month- 1* The higher rate for the Palisades site, period (all stations) 0.29 (0.20) 0.17 (0.12) however, is most likely due to the effect of foliar leaching of operational period calcium into the gauges positioned under the forest canopy. station no. Calcium concentrations of precipitation under trees have been 31 6.62 (1.78) 1.94 (0.57) shown to be up to 15 times greater than the concentration in 2 61 4.51 (1.53) 1.60 (0.74) precipitation collected in the open (8, 9). 1.14 (0.27) 0.86 (0.79) Operational Deposition Rates. The Palisades Plant 3 122 cooling towers became operational in April 1975 and contin-4 183 0.72 (0.20) 0.44 (0.44) ued into December 1975 at which time the plant was shut 5 61 1.90 (0.36) 0.77 (0.58) down for repairs. During June 1976 the plant resumed oper-6 183 0.71 (0.20) 0.50 (0.54) ation and continued through December 1976. These periods 7 31 6.64 (1.84) 1.99 (0.61) provided a total of 16 months operational data. During this 8 56 3.28 (1.20) 0.87 (0.43) period, sulfuric acid (H 2S0 4 ) (97% pure) was added to the 9 46 8.96 (2.40) 2.77 (0.66) cooling water at an average rate of 2620 L day- 1 to maintain 10 84 2.96 (1.14) 1.00 (0.38) suitable pH to inhibit scaling in the condensers and cooling 11 37 9.34 (3.17) 2.62 (0.76) towers. Also, 16% sodium hypochlorite (NaOCI) was added 12 61 1.04 (0.23) 0.77 (0.68) at an average rate of about 375 L day- 1 to control biological 13 143 0.68 (0.21) 0.56 (0.58) . growth in the condensers and cooling towers. Although the 14a 670 0.57 (0.15) 0.42 (0.50) plant is currently rated at 675 MWe, the average monthly 15a 823 0.74 (0.26) 0.34 (0.34) output was 475 MWe during the operational period. 16 98 0.84 (0.23) 0.51 (0.42) During the operational period, sulfate was deposited at rates 17 107 0.97 (0.17) 0.82 (0.78) 20-30 times those measured when the plant was not in oper-18 61 1.53 (0.28) 0.58 (0.30) ation for those stations that are within 50 m of the cooling 19 38 3.11 (0.97) 1.16 (0.61) towers, whereas calcium was deposited at rates 10-25 times 20 76 3.20 (1.24) 1.06 (0.48) the nonoperational rates for these same stations (Table I). 2~ 53 7.43 (4.28) 4.45 (2.05) Average concentrations of sulfate and calcium in Lake 22 122 1.05 (0.28) 0.43 (0.42) Michigan water are 22.2 and 33.6 ppm, respectively. Average 1.83 (0.60) 0.93 (0.62) concentrations for sulfate and calcium in the cooling tower 23 38 basin water were 435 and 100 ppm, respectively, during the 24 31 2.91 (0.79) 1.23 (0.66) period of operation. Increase in the sulfate concentration in 25 76 2.39 (1.09) 1.02 (0.57) the cooling water is due to both the addition of sulfuric acid 25a.b 793 0.57 (0.49) 0.22 (0.40) and cooling water evaporation. Increase in calcium concen-27a.b 1609 0.54 (0.58) 0.57 (0.86) tration is due to cooling water evaporation only. Consequently,

  *controls. bSix months data only.                                    sulfate deposition rates are much higher in proportion than calcium deposition rates.

The highest monthly mean sulfate deposition rates were quent deposition and impact on the surrounding terrain. calculated for Stations 9 and 11 (Table I) which are located Monthly calcium, sulfate, and chloride deposition rates on opposite sides of one of the cooling towers. However, the were calculated from the total amount of precipitate collected highest individual monthly sulfate deposition rate of 27.1 g and the concentration of each element in the precipitate. m- 2 month- 1 was calculated for Station 21. There did not Monthly mean deposition rates and confidence intervals were appear to b.e any seasonal trend in sulfate deposition rates at calculated for all monthly data. The monthly sulfate and any station, except for a slight decrease during the colder calcium deposition rates were fitted to a multiple regression months. For calcium the highest monthly mean deposition equation using distance, multiples of distance, wind direction, rate occurred for Station 21 which was distinctly higher than plant load, and H 2S0 4 rate of addition to the cooling towers any other st11tion that is close to the towers (Table I). During as independent variables. On-site wind data collected in a seven of the 16 months of operation, this Station had depo-separate study (6) and plant operating data were used in the sition rates over 5 g m- 2 month- 1

  • All stations except those regression equation. within 50 m of the cooling towers showed higher average cal-cium deposition rates during the summer months (May-Results and Discussion September). Those stations located in the open showed Only detailed results for calcium and sulfate are presented. summer calcium deposition rates two to three times that of Some of the chloride results are used for discussion pur- winter deposition rates. On the other hand, those stations poses. located under the canopy showed summer calcium deposition Nonoperational Deposition Rates. Due to extended three to eight times that of winter deposition rates resulting outages at the Palisades Plant, nonoperational data were partially from canopy leaching.

collected for 32 months from January 1973 to March 1975 and It is also noteworthy that mean deposition rates for both from January 1976 to May 1976. During this 32-month period, sulfate and calcium for the control stations ( # 14, 15, 26, 27) the mean sulfate and calcium deposition rates for all stations under operating conditions are at least twice those under were 0.29 and 0.17 g m- 2 month- 1, respectively (Table I). The nonoperational conditions (Table I). The portion of drift sulfate deposition rate based on annual precipitation coin- chemicals that are carried out to the control stations is pre-cided closely with that reported by Pearson and Fisher (7). sumably those particles that are less than 450 .um and are They reported a sulfate deposition rate of 0.40 g m- 2 month- 1 dispersed by the vapor plume (JO). at 114 cm aJinual precipitation for 18 stations in northeastern Isopleths connecting stations of equal ranges of sulfate and 1380 Environmental Science & Technology

Figure 1. Isopleths of equal ranges of sulfate deposition rates (g m-2 month- 1) under cooling tower operational conditions Figure 3. Sulfate induced defoliation of deciduous tree species within 50 m of cooling towers

  • Figure 2.

Isopleths of equal ranges of calcium deposition rates (g m- 2 month- 1) under cooling tower operational conditions calcium deposition rates are plotted in Figures 1 and 2, re-spectively. Within the area enclosed by the isopleth of heaviest deposition, vegetation has suffered severe chemically induced damage, so that the tree canopy has been completely defol-iated. The area enclosed by the isopleth of next heaviest de- Figure 4. Sulfate and ice induced vegetation damage resulting in total canopy removal within 50 m of cooling towers position (2-5 g m- 2 month- 1 for sulfate and 1-2 g m-2 month- 1 for calcium) also received chemically induced veg-etation damage. However, the more severe damage is re- severe winter of 1976-77 added to vegetation damage by stricted to those areas that are south and southeast of the physically breaking of branches and entire trees. Normal leaf cooling towers. The area enclosed by the third isopleth (1-2 emergence during the spring of 1977 did not take place for g m- 2 month- 1 for sulfate and 0.5-1.0 g m- 2 month-1 for most of the arborescent vegetation in these two areas, so that calcium) received vegetation damage, primarily to the upper vegetation consisted primarily of woody sprouts and herba-portions of the trees, to the southeast of the cooling towers. ceous vegetation, less than 1.5 m high (Figure 4). A greater frequency of onshore winds and winds from the The extremely high sulfate deposition rate is presumed to north is a contributing factor to intensifying vegetation be responsible for the vegetation damage around the cooling damage to the south and southeast of the cooling towers. towers. Typical leaf damage is quite similar to that described Vegetation damage around the cooling towers at the Pali- for acute doses of sulfur oxides (11, 12). At this time the pre-sades Plant has progressed from early visible signs on the cise sulfate compound responsible for the damage has not been sensitive white pine (Pinus strobus) to complete defoliation identified. It is known, however, that the pH of the cooling of all tree species in the area of severest impact (Figures 1 and water is maintained around 6.0-6.5. Therefor.e, acidic damage 2). Near the end of the first period of cooling tower operation is not likely unless chemical transformations take place from (April-December 1975), white pine leaves began to display the time when the drift leaves the cooling towers to the time signs of severe necrosis. During the second period of operation when it enters the leaf stomata. (June-December 1976), the deciduous tree species began to It is possible that chlorine as HOC!- or chloride salts could display signs of injury. Typically, leaves displayed a mottled be responsible for some of the vegetation damage close to the necrotic appearance, often displaying total collapse of the leaf towers. For example, the highest monthly mean deposition tissue. All tree species in the area of maximum impact, and rate for chloride (1.38 g m*-2 month- 1, not shown) was at some areas of the next highest impact area (Figures 1 and 2) Station 21. were nearly defoliated by August 1976 (Figure 3). Ice accu- Sodium chloride deposition rates of 1.45 g m- 2 month- 1* on mulation on vegetation from the plume and drift during the corn and soybeans produced little visual evidence of growth Volume 12, Number 13, December 1978 1381

Table II. Palisades Cooling Tower Drift: Multiple Regression Analysis for Sulfate and Calcium Deposition Rates squared multiple correlation regression beta coeH slgnlllcant coefl wt significance deletions total covariates (+/-SE) (+/-SE) (P) (R2), % R 2, o/o sulfate 26.56 constant -1.08 (0.816) distance X plant load -0.008 (0.002) -0.513 (0.146) <0.0005 24.05 distance X wind -0.105 (0.034) -0.422 (0.137) 0.002 24.63 distance 3 0.868 (0.226) 0.403 (0.105) <0.0005 23.59 wind 0.133 (0.031) 0.401 (0.093) <0.0005 22.81 plant load 0.010 (0.002) 0.329 (0.072) <0.0005 22.37 calcium 10.15 constant -1.80 (1.98) distance 3 29.84 (13.99) 32.35 (15.17) 0.034 9.02 distance 2 -41.77 (19.46) -24.52 (11.43) 0.033 9.01 distance 4 -7.13 (3.42) -14.08 (6.77) 0.038 9.08 distance 21.40 (10.77) 6.02 (3.03) 0.048 9.17 ell dividual stations, plant load (MWe), and H 2S0 4 rate of ad-

.c  '           *'                                                            dition to cooling towers. As a result, the least-squares deletion c                                                                             analysis for sulfate indicated that distance X plant load, dis-
 ~ *

~

                   *"                                                         tance X wind, distance 3, wind, and plant load are the major

_§ 7 covariates that affect sulfate deposition rate (Table II). By w .; examining the beta weights, it appears that the interaction a: of distance and plant load has, relatively, the greatest impact z 64r. 0

;::                                                                           on sulfate' deposition rate. The interaction of distance and the 5

i iii 0 0. w 0

    .                  *'                                                     percentage of time the wind is from the opposite 90° sector also has a relatively large influence on sulfate deposition rate .

w

         .,. .~     **       20 741.                     Beta weights are unitless values that permit the comparison
~
..J l

i of the impact of the significant co~ariates on the dependent

J Ill *25 variable (deposition rate), utilizing a uniform and absolute z *" *' magnitude. However, the squared multiple correlation coef-w *" l
1 o" ,)6 .17 n ficient deletions (R 2 ) are similar so that the total proportion of the variation accounted for by each independent variable is approximately the same (Table II).

OISTANCE FROM COOLING TOWERS (meters) For calcium, only the variables-distance, distance 2 , dis-Figure 5. Monthly mean sulfate deposition rates vs. distance under tance3, and distance 4-were significant at P :S ,0.05 and were cooling tower operational conditions retained for the multiple regression analysis (Table II). In Regression line c;ilculated from equation given in text. Dashed line: sulfate general, distance 3 and distance 2 appear to be relatively im-deposition under nonoperational conditions portant in expressing calcium deposition rate as shown by their beta weights, but the squared multiple correlation reduction and changes in plant color (13). Although McCune coefficient deletions (R 2 ) show little difference among all four et al. (14) showed that under controlled conditions certain variables. woody plant species sustained injury at doses as low as 7.2 µg Figures 5 and 6 show the monthly mean sulfate and calcium Cl cm- 2 (0.072 g m-2), other woody species showed varying deposition rates for all experimental stations plotted against degrees of injury up to 264 µg Cl cm- 2. Curtis et al. (15) and distance. The regression lines shown in Figures 5 and.6 were his students showed that when simulated drift was sprayed computed at various distances using the mean plant load and on certain tree species foliar injury symptoms developed after mean percent of time that the wind was from opposite 90° spraying for 43 days with 15.4 mL m- 2 of saline cooling tower sector from the following regression equations (Table II). basin water (6365 ppm Cl-). This is equivalent to about 2.2 S0 4 2 - deposition rate= 1.08 - 0.008 (D)(L) g m- 2 month- 1. Therefore, it is possible that vegetation at the Station with the highest monthly mean chloride deposition - 0.105 (D)(W) + 0.868 (D 3) + 0.133 (W) + 0.0103 (L) rate could have sustained injury by chloride salts. However, Ca 2 + deposition rate = -1.80 + 29.84 (D3) this does not account for the extensive areas of vegetation - 41.77 (D 2) - 7.13 (D4) + 21.4 (D) damage where chloride deposition rates ranged from 0.5 to 1.0 g m- 2 month. - 1 Nonoperational chloride deposition rate av- where D = distance in meters, L = mean plant load in MWe, eraged about 0.35 g m- 2 month- 1 . and W = mean percentage of time wind is from opposite 90° Modeling Chemical Deposition Rates. By fitting the sector. individual monthly deposition rates for sulfate and calcium The curve for calcium shows higher deposition rates at (dependent variables) to multiple regression analyses, models 40-50 m than at 30 m due to the influence of Station 21. As predicting deposition rates were constructed. Several com- stated earlier, this station had calcium deposition rates o v e r . binations of independent variables were examined which in- 5 g m- 2 month- 1 for seven of the 16 months of operation. No cluded, distance from towers, distance 2 , distance3, distance4, explanation can be offered for this high deposition rate. percent of time that wind was from opposite 90° sector of in- Canopy leaching is not a reasonable explanation as this station 1382 Environmental Science & Technology

A model depicting sulfate deposition rate is greatly in-

 .r;                                                                           fluenced by distance in combination with plant load and wind c 0                                                                          direction. A model depicting calcium deposition rate, on the e *
 ~e                                                                            other hand, is more influenced by distance 3 and distance2. The 2                                                                            plotted regression curves show that 64 and 47% of the sulfate w
  ~     J and calcium fall out within 92 m of the cooling towers. These c::

z 0 ll 477. cumulative deposition rates are similar to what was predicted by models of drift deposition for at least one model.

  ~     z   *1*'                         L                                     Acknowledgment
l1
> 677. Thanks are extended to the Consumers Power Co. Engi-91 *" "s *10 neering and Research Lab, especially J. A. Wildern and C.R.

(3 *" *

                      . ...*~:z                * *'

17 i Snow, for the sample analysis; to R. A. Kleinert and M. P.

  ~                                          "     22  13 Bombery for the graphical preparations; to J. L. Gill and R.

w

l1 R. Neitzel of Michigan State University for their assistance DISTANCE FROM COOLING TOWERS (meters) on the statistical analysis; to J. G. Peck and M. L. Pahl for Figure 6. Monthly mean calcium deposition rates vs. distance under typing the manuscript; and to J. Z. Reynolds, I. H. Zeitoun, cooling tower operational conditions and R. F. Green for their review of the manuscript.

Regression line calculated from equation given in text. Dashed line: calcium deposition under nonoperational conditions Literature Cited (1) Chen, N.C.J., "A Review of Cooling Tower Drift Deposition is more exposed than other stations close to the towers. Models", Oak Ridge National Labs, ORNL/TM-5357, 1977. Whether the curve in reality continues to dip within 30 m (2) Taylor, G. G. Jr., Mann, L. K., Dahlmann, R. C., Miller, F. L., cannot be verified as no measurements were made in this in- "Environmental Effects of Chromium and Zinc in Cooling-Water Drift", in "Cooling Tower Environment", S. R. Hanna and J. Pell, terval. Eds., ERDA Symp. Ser., CONF-740302, pp 408-26, 1975. By planimetering the areas under the two curves, it is esti- (3) U.S. Atomic Energy Commission, "Final Environmental State-mated that 64 and 47% of the sulfate and calcium, respectively, ment: Palisades Nuclear Generating Plant", Doc. No. 50-255, fall out in the first 92 m. Wistrom and Ovard (10) predicted 1972. that 68. 7% of the drift mass falls out in the first 122 m. At 145 (4) McSwain, M. R., Watrous, R. J., Douglass, J.E., Anal. Chem., 4, 1329 (1974). m, where the curve for sulfate flattens out, about 74% of the (5) Technician Auto Analyzer II, Chloride in Water and Seawater, sulfate has fallen out. Beyond 145 m, the deposition is rela- Industrial Method No. 217

  • 72 WI A, Technician Industrial Systems, tively uniform up to 1609 m which is the most distant station. Tarrytown, N.Y., 1977.

The curve for calcium levels off between 100 and 200 m where (6) Ryznar, E., Baker, D. G., Weber, M. R., Kessler, R., Snell, W. G., Kahlbaum, D. F., Baron, J. A., Dismachek, D. C., Wilkes, C.R., "An another 20% of the total calcium load is deposited. Beyond 200 Investigation of the Meteorological Impact of Mechanical-Draft m, the deposition rate drops to a mean of 0.39 g m- 2 month- 1 Cooling Towers at the Palisades Nuclear Plant", Data Rep. 1-4, out to 1609 m. Both sulfate and calcium have nearly equal University of Michigan, Ann Arbor, Mich.,.1975-77. deposition rates at 1609 as at 200 m; thus, the curves were (7) Pearson, F. J. Jr., Fisher, D. W., "Chemical Composition of At-mospheric Precipitation in the Northeastern United States", Geo!. extrapolated out to 1609 m to calculate the areas under the Surv. Water-Supply Paper 1535-P, GPO, Washington, D.C., curves. 1971. In conclusion, deposition of chemicals, especially sulfate, (8) Will, G. M., Nature, 176, 1180 (1975). on the surrounding terrain by fresh water wet mechanical (9) Tamm, C. 0., Physiol. Plant, 4, 184 (1951). (10) Wistrom, G. K., Ovard, J. C., "Cooling Tower Drift, Its Mea-draft cooling towers can be substantial, especially within 92 surement, Control and Environmental Effects", Presentation m of the towers. The ecological impact on vegetation from Cooling Tower Institute Annual Meeting, Houston, Tex., 1973. these high sulfate deposition rates can also be highly negative. (11) Barrett, T. W., Benedict, H. M., "Sulfur Dioxide", in "Recog-Although similar studies are lacking to substantiate the sulfate nition of Air Pollution Injury to Vegetation: A Pictorial Atlas", Air hypothesis, sulfur oxides of much lower concentrations have Pollution Control Assoc., Pittsburgh, Pa., 1970. (12) USDA Forest Service, "Air Pollution Damage Trees", 1973. been known to cause inju~y to plant tissue. The lower toxicity (13) Mule hi, C. L., Armbruster, J. A., "Effects of Salt Sprays on the of sulfate as compared to sulfite, for example, may be over- Yield and Nutrient Balance of Corn and Soybeans", in "Cooling shadowed by the much higher sulfate deposition rates. Tower Environment", S. R. Hanna and J. Pell, Eds., ERDA Symp. Chloride salts are not likely causing the vegetation damage Ser. CONF-740302, pp 379-92, 1975. (14) McCune, D. C., Silberman, D. H., Mandi, R.H., Weinstein, L. when the present chloride deposition rates are compared with H., Freudenthal, P. C., Giardina, P.A., J. Air Pollut. Control Assoc., chloride applications to plants reported in the literature and 27, 319 (1977). with the chloride deposition rates at other stations where (15) Curtis, C.R., Lauver, T. L., Francis, B. A., Mulchi, C. L., Doug-vegetation damage has been extensive. lass, L. W., "Potential Cooling Tower Drift Effects on Native Vegetation", in Proc. Cottrell Centennial Symp. on Air Pollution Additional studies are now in progress to specifically and Its Impact on Agriculture, 1977. identify the chemical(s) that is responsible for the vegetation damage. Received for review December 19, 1977. Accepted June 26, 1978 .

  • Volume 12, Number 13, December 1978 1383

DAILY AVERAGE HEAT REJECTION Btu/h x io6 Day Jan Feb Mar Apr May - June

                                                 -    July      Aug  Sept    Oct  -Nov
                                                                                     -   -Dec 1              !::d 91.0   0    (I)  15.9   45.8   75.6     109.3              125.7        109.7  63.4   42.6 H, ()

2 113.0 0 19.1 19.6 40.2 15.6 71.2 139.6 93.5 23.2 (f)f1 3 109.9 (I) p.. 19.1 3.3 30 .9 56.2 76.7 1.44 100.8 106.7 0 f1 (I) 4 100.5 <: f1 22.2 3.3 30.9 45.3 88.4 6.43 53.3 106.7 0 I-'* 5 78.5 () 0 31. 8 26.2 30.9 62.5 130.2 105.6 15.42 64.6 53.4 35.0 (I) ~ 6 96.1 c+ 15.9 26.2 30.9 78.1 74.4 39.8 25.2 55.3 31. 8 68.9 7 127.0 31. 5 13.1 45.9 91. 5 30. 3 109.2 25.0 55.7 31. 3 99.5 8 90.3 25.1 22.3 71.9 30.9 . 28.1 18.6 72.7 31. 3 64.9 31. 5 136.o 9 53.7 25.1 22.3 91. 5 62.5 112.4 103.8 34.4 56.6 20.1 100.8 10 25.1 19.1 75.2 71.6 71~. 9 44.3 102.3 31.0 49.9 70.1 63.8 11 18.8 10.8 94.8 77.1 37.5 22.8 87.7 66.2 68.8 66.8 55.7 12 1-3 18.8 15.2 101.4 110.6 G 52.2 114.3 95.6 74.4 66.8 66.8 (I) 13 .§ 25.1 11. 8 101.4 102.8 27.5 14.9 89.5 84.1 62.2 63.4 81.9 14 (I) 21.9 25.7 107.9 86.8 88.2 41.1 99.0 40.2 13.5 71.1 47.7 f1  !::d 15 Pl 0 (I) 22.3 124.2 111.4 G 16.2 102.5 43.2 12.5 73. 5 185.6 c+ H, () 16 19.1 117.7 128.6 62.5 96.9 58.7 56.4 10.4 71.0 128.4

      ~

0 (/) f1 17 (I) (I) p.. 19.1 114.4 123.2 31. 8 86.2 56.0 77.2 12.6 61. 7 116.0 f1 18  !::d <: (I) f1 28.7 171.0 123.5 6o.4 70.2 55.6 126.9 10.9 49.5 183.5 (I) I-'* 19 () () 0 14.5 111.2 108.2 46.8 79.6 62.0 154.6 10.7 1,0.1 324.1 0 ~ 20 f1 (I) c+ 15.9 111.2 98.8 46.8 19.6 66.3 53.6 10.5 33.1 154.4 p.. 21 (I) 29.9 19.1 160.2 192.8 *30. 0 67.1 49.9 107.9 44.o 9.3 129.6 f1 22 26.2 16.o 71.9 126.4 45.9 73.4 59.1 68.o 18.7 66.8 132.8 0 23 ~ 22.9 17.1 114.4 114.2 31.2 44.7 58.7 40.5 62.0 30.9 132.8 c+ 24 19.1 22.3 46.2 l,6.8 52.7 55.5 59.9 49.5 16.7 129.7 0 25 H, 15.9 22.3 114.8 112.9 31. 2 36.2 52.0 87.9 43.4 30.9 154.1 26 (/) (I) 18.9 19.1 123.1 129.6 46.8 63.7 70.8 65.9 44.o 10.1 142.1 27 f1 15.9 50.6 121.4 89.2 93.7 l,o. 8 71.0 79.6 9.5 12.6 119.4 28 <: 19.1 12.6 118.1 I-'* () 86.5 93.7 39.1 65.9 121.3 6.2 27.8 134.5 29 (I) 9.9 111. 5 77.4 78.1 123.5 63.6 131.6 27.9 57.3 138.9 30 o.o 89.9 64.3 62.5 49.3 32.9 111.2 43.4 52.4 256.0 31 19.8 48.3 109.2 69.0 53.6 138.7

APPENDIX F

  • PALISADES NUCLEAR PLANT CIRCULATING WATER SYSTEM CHLORINATION DATA MONTH/YEAR JANUARY 1978 "N" Weir "S" Weir

(]) (]) 0 +'i:: +' Total (]) Total  ::::: Cll Cll +' (]) (]) (]) s  ;:j cd s  ;:j cd s rl 0 8 s +'

      *ri cd -

(]) i::

                      '"d

(]) Cll-

i rl cd 0

(]) p:; i:: i : : - cd :::::

                                    +' 0 p..

s Residual Chlorine (ppm)

                                                                           *ri 8-i::

p.. *ri

                                                                            ;:j  s 0

(]) p:; i:: i : : - cd ::::: rl

                                                                                     +' 0 cd
                                                                                                         .Residual Chlorine (ppm)
                                                                                                                      *ri 8-i::

p.. .,...,

                                                                                                                       ;:i   s
                                                                                                                                  ~

i:: 0

                                                                                                                                          -s p..

OD ill ~8 ..__. s rl u ..__.OD 3 '"d OD

                                                                           '"d ..__.

rl rl '"d OD

                                                                                       ;:j   ::::: ..__.
                                                                                                                      '"d ..__.

rl

                                                                                                                                  +' ..__.
                                                                                                                                    ;:j
 +'

cd

      +' C\J 0 rl 0

cd s 0

                                    .,..., rl                              ~

0 s 0

                                                                                     .,..., rl 0          rl
                                                                                                                      ~

Q 80  :;;::; r:r.J i:q 1 2 3 r:r.J i:q 1 2 3 Q NO CHLORINATION DUE TO COOLING TOWERS OUT OF SERVICE

    • PALISADES NUCLEAR PLANT CIRCULATING WATER SYSTEM CHLORINATION DATA MONTH/YEAR FEBRUARY 1978 "N" Weir "S" Weir Total Total
  <d                     Residual                       Residual*

Cl) Cll- Chlorine Chlorine

i rl td (ppm) (ppm) rl bD u ..._,

0 td

1 2 3 1 2 3 NO CHLORINATION COOLING TOWERS OUT OF SERVICE
  • PALISADES NUCLEAR PLANT CIRCULATING WATER SYSTEM CHLORINATION DATA MONTH/YEAR MARCH 1978 "N" Weir "S" Weir Total Total Residual Residual Chlorine Chlorine (ppm) (ppm) 1 2 3 1 2 3 NO CHLORINATION COOLING TOWERS OUT OF SERVICE

Date

  • * 'rotal ;rime of Cl Treatment 2

(min) NaOCl Used (gal) Simultaneous ()

   !2:                                                      H 0    Blowdown Rate                                      !:d

() () (gpm)

                                                 ~

t:1 !2: 0 8 ~

   !:d                                           ::q        H H   1--'                                     .......... !2:

() !:d K Q 1-\j

r (j)
                   ..----.I--' Ill  8  ~                    :::<::: ~
   ~

H 'd 0 I-'* 0  :: ~ !I> H

                  'd 'i p.. c+                             8        (/)

0 I\)

   !2:              13 I-'* s::: ~     :::<:::              M
                   ~P Ill              (j)                          E;
                                                            !:d (j) 1--'     I-'*                         M
                                       'i                   (/)     (/)
                                                ~           K w                                                    (/)     2l
                                                ~

H 8 c: t:-J M 0

t"l 1--' ()

Holdup Time \0

                                                                    ~
                                               -.:i (min)                          CX>        80       1-\j
                                                            ~

121 ~8 Simultaneous ~ H Blowdown Rate 0 2: (gal) t=J

                                                            !I>

8 1--' () ~

                                                            !I>

p' (j)

                  ..----.f--'  Ill  8 (/)
                 'd 0 I-'* 0              ::
                 'd Ii p.. c+

13 I-'* s::: Ill  :::<::: I\) ~P Ill 1--' (j)

                          <D 1--'     I-'*
                                      'i w

Holdup Time (min) Dilution Flow (gpm)

  • PALISADES NUCLEAR PLANT CIRCULATING WATER SYSTEM CHLORINATION DATA MONTH/YEAR MAY 19T8 "N" Weir "s" Weir
                                                 <])                                                  <])

Total ~ 0 +-'i:::: Cl'.l +> <])

                                                                                                    +-'                  Total         <])
                                                                               ....,s Cl'.l                                                  0
       <])
            <])

s 'Cl

                                          ;:J ctl 0 p:;                Residual                       ;:J 0 p:;

ctl Residual s

                                                                                                                                      *r-i r-1 i=..

s +> <]) <]) Chlorine 8 ......... <]) Chlorine 8 ......... .........

      *r-i 8

ctl

            <])

i:::: o:i ...--.. 0 r-1 i:::: ctl ~s- P< i::::

                                                                                      *r-i i:::: i:::: .........

(1j ~ r-1 i:::: p., *r-i i:::: s

            ;.; *r-i                (1j  +-' 0       p.,         (ppm)          ;:J    s     +-' 0 (1j                   (ppm)         ;:J   s       0 p.,

OJ) r-1 8 s r-1 u-OJ) r-1 'Cl OJ) 'Cl ......... r-1 r-1 'Cl 00 'Cl .........

                                                                                                                                                    *r-i
                                                                                                                                                    +-' .__,

0~-

  <])                                     ;:J                                                 ;:J 0~-

r-1  ;:J

 +-'

(1j (1j

      +>

0 r-1 C\J 0 rn s

                                         *r-i   r-1 0
=: s r-1 0 r-1
                                                                                             *r-i                                     :::i::        *r-i A    8U                    12;          er.! i:Q            l        2   3                  er.! i:Q                1        2    3                A 24      175                                     0          .58    <.05 <.05     35                     0            <.05 <.05 <.05    92                 60K 26            6                                 0        <. 05 r <.05 <.05      40                     0            <.05 <.05 <.05    20                 60K 27      175                 250                 0        <.05       .07 .15    95                      0            <.05 .10 .48      60                 60K 160
  • 40 .42 .53 . 35 .30 .32 30 445 330 0 .* 32 .47 .52 437 0 .25 .58 .98 28 60K 31 175 200 0 . 35 . 39 20 0 .29 .34 .47 155 60K
  • PALISADES NUCLEAR PL.ANT CIRCULATING WATER SYSTEM CHLORINATION DATA MONTH/YEAR JUNE 1978 "N" Weir "S" Weir G-i +' Q) Q)
                                                                                                                                                            ~

0 i:::: OJ +' Total Q)

                                                                                                               +'                Total          Q)

Q)  ;::l al s OJ

                                                                                                         ;::l  al                               E         ,...,0 Q)   s           'CJ               0 IZ                   Residual          *rl              O IZ                  Residual         *rl        r:. ........

s +' Q) Q) Chlorine 8- Q) 8-

          *rl 8

al ........ Q) s:: OJ ........

i,..., i::::

al 5---s (ppm) s i:::: i:i.. .,.., i:::: al s:: ........

                                                                                                                ~     ,...,

Chlorine s:: p., ..... s:: 0 s p., E-1 S* ,..., al QO

                                            +' 0
                                            ,..., 'CJ i:i..

00

                                                                                         ;:::l
                                                                                      *"CJ .._,        +' 0 al
                                                                                                       ,..., 'CJ 00 (ppm)          ;::l
                                                                                                                                               'CJ.._,

s .,.., QO (IJ al .._, u .._,  ;::l ~ .._, ,...,  ;::l ~ ...__.. ,..., +' .._,

+'        +' (\J            0               .,..,s ,...,0                                0             .S
                                                                                                       .,.., ,...,o                              0        ,...,;:::l al        0,...,            al                                                        ::c:                                                    ::c:       .,..,

Q E-IU ~ UJ. iJ=l 1 2 3 UJ. iJ=l 1 2 3 Q 1 15 125 0 .29 .35 .54 203 55K 2 17 175 0 . 32 . 34 .90 0 . 34 . 35 .37 55K 115 100 . 30 . 38 .60 0 55K 3 25 20 215 100 .15 .25 50 0 .25 . 72 .85 68 55K

     )         25                85                                                                            450          .15      .10  .05         0              55K 14             25            300                    100           .05      .12   .13            0              100          .05     .05   .09         0              55K 15             25                                   100           .46    1.15    .71            0 19             18           185                    1250           .05      .05   .05            0           1550            .05    1. 66 1. 51        0              55K*

20 50 150 1250 .05 .05 .25 0 1250 .05 .3 .2 0 55K 23 20 100 450 .05 .05 .1 0 100 .05 .15 .25 0 55K 24 50 125 250 .05 .1 .05 0 325 .05 .2 .2 0 55K 25 25 100 450 .05 .24 0 450 .05 .05 0 55K 26 20 185 925 .05 .2 0 925 .05 .05 0 55K 27 75 450 .05 0 250 .3 0 55K

*No limit exceeded c1                      demand 0.3 .

2

  • PALISADES NUCLEAR PLANT CIRCULATING WATER SYSTEM CHLORINATION DATA MONTH/YEAR JULY 1978 "N" Weir "S" Weir G-< +' <!) <!)
                                                                                                                                      ~

0 c CJJ +' Total <!)

                                                                                                +'           Total          <!)
        <!)
            <!)

s <d  ;::l 0 '° p:; Residual =: CJJ 0;::l '° p:; Residual s 0 rl 8 s +'ro ...--..

      *.-1
            <!)   c
            >-t *.-!
                          <!)

CJJ .........

=> rl m
                                         <!)

cm

                                        +' 0
s. .s.

P; Chlorine (ppm) 8 ........ c P; *.-{

                                                                             ;::l  s
                                                                                          <!)

c c ......... m ~ rl

                                                                                       +' o m Chlorine

{ppm) 8 ........ P; *.-!

                                                                                                                           ;::l  s
                                                                                                                                     ""'0I:: .........s P;

bO rl 8 s 3 <d~-bO *.-! rl bO <d - rl <d tlO <d- +' .__.. a.1 m .._, u .__.. rl  ;::l ~- rl  ;::l

+'

m +' (\j 0 s 0

                                              ,....,                        :§            s      0                          0        rl 0 rl                             *.-{
r::

A 8U '° 12: c.a i:Q 1 2 3

                                                                                       *r:-i rl c.a i:Q            1        2  3
                                                                                                                                     *.-{

A 5 12 125 450 .05 .05 0 325 .05 .15 0 55K 6 17 120 450 .05 .05 0 100 .07 0 55K r 7 9 100 625 .05 .05 0 100 .05 .05 0 55K -11 13 14 60 60 60 60 100 100 100 100 1250 1250 1250 625

                                                         .05
                                                         .05
                                                         .05
                                                         .05
                                                                 .12
                                                                 .17
                                                                .05
                                                                .12
                                                                        .05
                                                                        .05
                                                                        .05
                                                                        .32 0

0 0 0

                                                                                           .625 250 625 0
                                                                                                         .05
                                                                                                         .05
                                                                                                         .05
                                                                                                         .05
                                                                                                                .54
                                                                                                                . 78
                                                                                                                .40
                                                                                                                .23
                                                                                                                     . 53
                                                                                                                     .65
                                                                                                                     .26
                                                                                                                     .20 65 0

0 55K 55K 55K 55K 24 60 150 250 .05 .15 0 100 .68 90 55K . 25 120 150 450 .2 .17 .10 0 100 .05 . 31 . 39 0 55K 27 120 150 450 .05 .1 .17 0 100 .23 .15 .15 0 55K 28 120 150 450 .22 .12 .10 0 100 .17 .05 .05 0 55K 29 120 150 100 .05 .12 .08 0 250 .05 .25 .27 0 55K 30 120 125 250 .15 .10 . 83 0 100 . 85 1. 48 - 0 55K

  • P_l\LISADES NUCLEAR CIRCULATING WATER SYSTEM CHLORINATION DATA PLA.L~T MONTH/YEAR AUGUST 1978 "N" Weir "S" Weir
      ~    +'                                   (!)

Total (!)  ::;: 0 i::: C/l +' (!) s C/l +' Total .(!) 0 (!)  ;:j ell  ;:j ell

                                                                                                                                         ...,s rl

(!) s rd o~ Residual 'M o~ Residual ~ s +' (!) (!) Chlorine 8 - i::: (!) Chlorine 8 - i:::

      *r-l  ell -           .C/l-        i:::   i:::-

sp.. p.. *r-l i::: i:::- i::: s

      !:-; (!) i:::
            ;....  ...,    ::i .-I ell ell
                                        +' 0 (ppm)            ;j    s       ell ::;: rl
                                                                                                  +' 0 ell                   (ppm)         p.. *r-l
                                                                                                                                           ;j    s   0
                                                                                                                                                    *r-l p..

b.O (]) rl 8 ell s rl b.O u ........

                                        ,.., rd
                                         ;:j b.O
                                                                                   'd ........ rl 'd b.O
                                                                                                   ;j     ::;: ........                  ,..,

rd......., +' ........

                                                                                                                                                     ;j
 +'

ell

      +'

0,.., C\J 0 ell s

                                        *r-l  rl 0                                    0
i::

s

                                                                                                  ...,  rl 0                                0
                                                                                                                                         ,..... rl
                                                                                                                                         >-<        *r-l
 ~    8U                   :;;::;       Cl)   i:Q              l        2     3                   Cl)   i:Q               l      2    3             ~

2 45 100 625 .05 .06 .06 0 0 .05 .06 .08 100 55K 9 45 100 1250 .05 .05 .07 0 0 .05 .05 .05 80 55K ~14 50 90 175 125 250 0 .05

                                                              .05
                                                                      .42    .16
                                                                      .45 10.3 60 0            250 0          .05
                                                                                                                        .11
                                                                                                                                .16 .10 6.7 5,9 60 0

55K 55K* 15 90 75 0 .05 .05 .10 90 17 50 150 0 .05 .15 .05 50 0 .05 .05 .10 50 55K 20 80 150 100 .11 .10 .08 0 100 .11 .24 .20 0 55K 22 90 150 0 .21 .1. .09 90 0 .26 .16 .10 90 55K 24 33 75 100 .25 .14 - 0 55K 26 15 150 0 .05 .05 - 160 0 .05 .10 .21 160 55K

*No limit exceeded                c1 2 demand 0.3 ppm .

[\) I-' co I [\) Date

  • ~*
  • Total Time of
        -i::--

I-' Cl Treatment 0

 °'    Vl       0
                °'                  2 V1
                         °'            (min) b--'          I-'

0 Vl 0 co NaOCl Used 0 0 0 0 (gal) Simultaneous 0 H I-' Blowdown Rate ~ 0 [\) 0 0 0 0

                         °'

Vl (gpm) ~ 0

                                                                   !21    ~

1-3 1-3 p:j H I-' I-' 0 I-' ...____

                                                                          ~

0 Vl Vl o~ <--<: 0 '-cl P' ro

                                           ,-.. I-' Ul 1-3  ~                   f:;

t*d 0 I-'* 0 ~ ~ H

                                          'd Ii P. CT                     1-3   (/)

[\) [\) ~ ttj I-' 0 13 I-'* i:: ~ Vl --:] Vl ~:::i [ll ro (;

                                                                          ~

ro I-' I-'* ttj Ii (/) (/) (/) I-' [\) 0 w ~ (/) !21 w -i::-- Vl 1-3 1-3 c: ttj ttj 0

                                                                          ~     Li Holdup Time
                                                                  ~

ttj 0 0

 °'            0         0                                        ~             ~

(min) 8 0 '-cl I-'

                                                                 \()      ~
                                                                 -----1   H co      !21   ~

1-3 Simultaneous ~ [\) [\) [\) H Vl Vl Vl Blow down Rate 0 0 0 0 0 !21 (gal) t:J

                                                                          ;i>

1-3 0 0 I-' 0 0

i:.

I-'  !:ll Vl Vl 0 Vl p' ro

                                          ,-.. I-' Ul 1-3  (/)
                                         'd 0 I-'* 0
                                         'd Ii P. CT

[\) [\) 13 I-'* i:: [ll ~ I-' I-' [\) ~ 1:1 [ll I-' ro 0 0 Vl ro I-' I-'* Ii [\) w I-' w w 0 V1 V1 [\) Holdup Time 0

 °'    0       0         0 (min)

V1 V1 V1 V1 Dilution Flow V1 V1 Vl V1 (gpm)

 ~     ~       ~         ~
    • PALISADES NUCLEAR CIRCULATING WATER SYSTEM CHLORINATION DATA PLA.J.~T MONTH/YEAR OCTOBER 1978 "N" Weir "S" Weir
      '+-! +'                               Q)                                                         Q)
                                                                                                                                                   ~

0 s:: C/J +' Total Q)

                                                                                                     +'                Total         Q)

Q) s  ;:l al Residual s

                                                                             .,.,8,......,

C/J

                                                                                                 ;:l   al                            s
                                                                                                                                    .,.,8,......,

0

                                                                                                                                                  .-I Q)              <rj            0 p::                                                      0   p::            Residual                      Ii.

s +' Q) Q) s:: s:: ........ Chlorine s:: Q) s:: s:: ........ Chlorine

      .,., al ........

8 Q) s:: C/J ........ sA s:: s:: s

           ;...  .,.,  ;::i r-1 al al
                                     +' O
                                            ~

(ppm) A *.-i

                                                                              ;:l      s         al
                                                                                                +' 0
                                                                                                       ~ r-1 al         (ppm)         A*.-i
                                                                                                                                     ;:l      s    O A
                                                                                                                                                  .,., bO r-1 8 s          r-1     QO    r-1 <rj QO                              <rj -              r-1 <rj QO u '-"                                                 r-1                                                    <rj -         .µ -
 <l.l al       -                     ;:l ~-                                                     ;:l ~-                             r-1            ;:l
+'    +' C\J           0              a o                                     0                  a o                                              .,.,q A

Cti 0 r-1 8U z Cti .,., r-1 CJ) l::Q 1 2 3

                                                                             ~                  .,., r-1 CJ)  l::Q           1       2
2 r-1 3

8 87 100 0 .05 .20 .10 60 0 .05 . 30 .22 55K

  • 17 19 60 60 70 110 100 100 0

0 0

                                                       <.05
                                                       <.05
                                                       <.05
                                                                 .12
                                                                 .29
                                                                <.05
                                                                       .33
                                                                       .15
                                                                       .15 60 60 0

0 0 0

                                                                                                                  <.05
                                                                                                                  <.05
                                                                                                                  <.05
                                                                                                                          .15
                                                                                                                          .25
                                                                                                                               . 30
                                                                                                                               .24
                                                                                                                          .15 <.05 60 60 0

55K 55K 55K 21 73 100 0 . 25 .16 .13 0 0 .13 . 32 .29 0 55K 23 60 100 0 .02 .16 .16 0 0 .09 .2 .13 0 55K 25 60 100 0 <.05 *.08 .15 0 0 <.05 .10 .07 0 55K 27 60 75 0 <.05 .07 .10 0 0 <.05 <.05 .70 0 55K 29 160 145 0 <.05 .18 .05 0 0 <.05 .23 .17 0 55K

  • PALISADES NUCLEAR PLANT CIRCULATING WATER SYSTEM CHLORINATION DATA MONTH/YEAR* NOVEMBER 1978 "N" Weir "S" Weir
        ..... +>                           <IJ Total                            <IJ                                      ::;:

0 s:: Cll +> <IJ s Cll +> Total <IJ 0

               <IJ                         '°                                             ;:l
                                                                                               '°                             s Residual                                                                   rl
         <IJ   s           'Ci        ;:l O IZ                                    *ri         0 IZ               Residual        *ri       >:.

s +> ro-

                            <IJ       <IJ s:: s::-              Chlorine          E-i -

s::

                                                                                          <IJ s:: s::-           Chlorine        E-i - s::
        *ri s::

Cll-

i rl  :;:: sPl Pl *ri p. *ri s:: s 3'° 'Ci0 8 <IJ  ::;: rl
               ;.., *ri
        ~ E-i ..__.. s    rl   'OD° +>

OD (ppm)  ;:l s

                                                                             'Ci ..__..   '°
                                                                                         +>

rl 0 OD

                                                                                              'Ci    '°         (ppm)         ;:l   s
                                                                                                                             'Ci..__..

0

                                                                                                                                       *.-i Pl OD
                                                                                                                                       +> ..__..
 <l.l                      u ..__.         ::;: .......                      r-i          ;:l ::;: .......                   rl         ;:l
+>      +>        (\J      0          s    0                                   0
i:::

s 0 0 rl

r::

Q'° 0 rl E-i u ~'° *.-i rl CJ) P'.l l 2 3

                                                                                         *r-i rl CJ)  P'.l           1       2    3
                                                                                                                                       *.-i Q

13 30 27 0 <.05 <.05 <.05 30 55K 15 60 105 0 .4 .55 .23 30 0 .32 .37 .42 30 55K

      .       60            80              0            .20     . 30  .55          30             0        .22    .35  .47        30        55K 19            60             70             0            .3      . 38  .55          30             0        .33    . 30 . 70       30        55K 23            80          100               0            .10     .36   .12          30             0        .12    .27  .15        50        55K 26           60          110               0           <.05     .09   .07          30             0       <.05   <.05 <.05        30        55K

PALISADES NUCLEAR PLANT CIRCULATING WATER SYSTEM CHLORINATION DATA MONTH/YEAR DECEMBER 1978 "N" Weir "S" Weir

         '+-l +>                                <I!                                                  <I!                                     ::::

0 i:: C/l +> Total <I! +> Total <I!

                <I!                      ;:::l  al Residual           s            C/l
                                                                                              ;:::l  al                          s          ,...,0 s                                                              *r-i                              Residual 8
           <I!
       . *r-1s +>a
                <I!

l-i::

                             'CJ
                              <I!

C/l-

i,...,

0 p::;

                                          <I!

i:: cd ~s-Chlorine (ppm) 8-p.; i::

                                                                                        *r-1 s

0 p::;

                                                                                              <I!

i:: i : : - cd :::: ,..., Chlorine

                                                                                                                                *r-i 8-i::

p.. *r-i F.. i:: 0 p..

                                                                                                                                                    -s
                ;... *r-1
                             ,...,  al  +>      0 p..                            ;:::l       +>     0 cd            (ppm)        ;:::l  s   *r-1     bO
  <l.l
         ,..., 8 al s     u-bO  ,...,  'CJ bO                          'CJ'--'
                                                                               ,...,         ,..., 'CJ bO                       'CJ'--'
                                                                                                                                ,...,       +>     '--'
                     '--'                ;:::l  :::: '--'                                     ;:::l ::::: '--'                               ;:::l
 +>al    +'        C\J       0           s 0                                     0            s 0                                0          ,...,

0,..., cd *r-1,...,  ::r:: *r-1,..., ;I:: *r-i A 8U ~ C!.l ~ l 2 3 C!.l ~ 1 2 3 Q 1-12 SHUT DOWN FOR OUTAGE 13 60 155 0 <.05 .65 .10 30 0 <.05 .75 <.05 30 55K

  • 21 55 50 150 150 0

0

                                                          <.05
                                                          <.05
                                                                  <.05 <.05
                                                                  <.06 <.05 34 32 0

0

                                                                                                               <.05
                                                                                                               <.05
                                                                                                                       .15 <.05
                                                                                                                       .35 <.05 21 15 55K 55K 25            34            120                0         <.05     .05 <,05            60               0      <,05   <.05  .05        24          55K 28            71            130                0          .05     .1    .05           24               0       .05    ,3   .1         30          55K
  • -**}}