ML20064F408
| ML20064F408 | |
| Person / Time | |
|---|---|
| Issue date: | 03/02/2020 |
| From: | Joseph Kanney NRC/RES/DRA |
| To: | |
| J. Kanney 415-1920 | |
| References | |
| Download: ML20064F408 (7) | |
Text
1 Coastal Flooding SHAC-F Research Webinar Joseph Kanney Fire and External Hazards Analysis Branch Division of Risk Analysis Office of Nuclear Regulatory Research U.S. Nuclear Regulatory Commission March 2, 2020
Outline
- Agenda
- Research Objectives
- Status 2
Agenda 3
Time Topic Speaker(s) 1:00 pm Welcome and Introductions Joseph Kanney (NRC) 1:15 pm Overview of Probabilistic Coastal Flooding Hazard Assessment Methods Norberto Nadal-Caraballo (USACE) 2:00 pm Q&A Open 2:15 pm Overview of the SSHAC Process Kevin Coppersmith (CCI) 3:00 pm Break 3:10 pm Coastal SHAC-F Description Norberto Nadal-Caraballo (USACE), Rajiv Prasad (PNNL),
Joseph Kanney (NRC) 4:15 pm Open Discussion Open 5:00 pm Adjourn
4 Motivation Interest in application of PFHA to NPP flood hazard assessments
- No consensus framework or standard set of methods for performing PFHA
- Potentially large uncertainties in estimates for both magnitude and frequency of extreme floods
- Reliance on professional or expert judgment in several steps of the PFHA Current PFHA situation similar to state of probabilistic seismic hazard assessment (PSHA) several decades ago
- Structured multilevel assessment approach known as the Senior Seismic Hazard Analysis Committee (SSHAC) process developed for PSHA With suitable modification and adaptions, SSHAC process might be basis PFHA framework
- Structured Hazard Assessment Committee Process for Flooding (SHAC-F)
5 Research Objectives
- Develop Structured Hazard Assessment Committee Process for Flooding (SHAC-F)
- Identify technically defensible data sets, models, and interpretations
- Address key areas where expert assessment is required and use of such experts
- Participatory peer review
- Accommodate problems of varying complexity through an appropriate hierarchy of SHAC-F study levels
6 Research Status SHAC-F framework developed for local intense precipitation (LIP) and riverine flooding
- Presented at several NRC PFHA Research Workshops (RIL-2001)
- https://www.nrc.gov/reading-rm/doc-collections/research-info-letters/2020/
- NUREG/CR Report in preparation SHAC-F framework for coastal flooding in progress
- Presented at 5th Annual NRC PFHA Research Workshop (Feb 19-21, 2020)
- Solicit feedback in todays webinar
- Finalize and publish as a PNNL technical report
7 Contact Information Joseph Kanney Email: joseph.kanney@nrc.gov Phone: +1 301-415-1920