Multi-Mechanism Flood Hazard Assessment: Example Use Case Studies

Somayeh Mohammadi, Michelle Bensi, Shih-Chieh Kao, Scott T. Deneale

Research output: Book/ReportCommissioned report

Abstract

Multi-mechanism flood (MMF) events are caused by the combined effects of more than one flooding mechanism. Although floods can result from the occurrence of individual flood mechanisms, they can (and often do) result from multiple flooding mechanisms. MMF events may be more severe than single mechanism events, or they may differ in characteristics. To facilitate comprehensive risk-informed decision-making to protect against and mitigate the effects of flood events, understanding the hazard contributions from MMFs is important. Nevertheless, conventional probabilistic flood hazard assessment approaches typically focus on individual flood hazard mechanisms. This report is part of a research project funded by the US Nuclear Regulatory Commission (NRC) intended to assist NRC in developing the technical basis for guidance on developing probabilistic estimates of flood hazards for combinations of flood mechanisms. Specifically, the purpose of this report is to document two case studies to illustrate approaches for quantifying MMF hazards for inland and coastal flooding scenarios.
Original languageEnglish
Place of PublicationUnited States
DOIs
StatePublished - 2021

Keywords

  • 54 ENVIRONMENTAL SCIENCES
  • 58 GEOSCIENCES

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