Atchafalaya River Delta. Report 8. Numerical Modeling of Hurricane-Induced Storm Surge

摘要

This report contains a description of the US Army Engineer Waterways Experiment Station (WES) Implicit Flooding Model (WIFM) and how it was applied to the Atchafalaya River Delta Project. Input required by the model for this application is discussed. The model is verified to both tidal and hurricane conditions by comparing prototype water-surface elevations to simulated results. Hurricane wind fields are generated using the standard project hurricane (SPH) model. The storm surge model is used to simulate the response of the Atchafalaya Bay area for a set of 12 hypothetical hurricane events. Hurricane parameters defining this ensemble of storms were derived from historical data. Originator supplied keywords include: Atchafalaya Bay; Hurricanes; Numerical modeling; and Storm surge.