Storm Surge Simulations for Hurricane Hugo (1989): On the Significance of Inundation Areas
- 1 May 2007
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Waterway, Port, Coastal, and Ocean Engineering
- Vol. 133 (3), 183-191
- https://doi.org/10.1061/(asce)0733-950x(2007)133:3(183)
Abstract
The storm surge generated by Hurricane Hugo (1989) is reproduced for the purposes of (1) evaluating the significance of including inland flooding areas and corresponding levels of spatial resolution and (2) assessing the spatial variability of near-inlet boundary forcings with respect to storm surge hydrographs. The study focuses on the coastal regions of South Carolina, incorporating inundation areas between Charleston and Shallotte Inlet and including Winyah Bay and the Waccamaw River. The region of interest is modeled with five variations of an unstructured, finite-element mesh, including a localized coarse grid with and without floodplains, a localized fine grid with and without floodplains, and a large-domain approach that includes floodplains and the continental shelf and deep ocean. Simulation results demonstrate that the inclusion of inland flooding areas significantly improves the description of storm surge generation within coastal regions. While the large-domain approach is shown to be beneficial, it is determined that the coarse mesh resolution of the floodplains is sufficient. Computed water surface elevations at specific locations surrounding Winyah Bay Inlet indicate that storm surge hydrographs are highly spatially dependent near inlets, as opposed to the astronomical tides, which exhibit minimal variance in space around the inlet environment.Keywords
This publication has 20 references indexed in Scilit:
- Automatic, unstructured mesh generation for tidal calculations in a large domainInternational Journal of Computational Fluid Dynamics, 2006
- An Unstructured Mesh Generation Algorithm for Shallow Water ModelingInternational Journal of Computational Fluid Dynamics, 2002
- A comparison of the nonlinear frictional characteristics of two-dimensional and three-dimensional models of a shallow tidal embaymentJournal of Geophysical Research, 1995
- The influence of domain size on the response characteristics of a hurricane storm surge modelJournal of Geophysical Research: Oceans, 1994
- Aspects of nonlinear simulations using shallow-water models based on the wave continuity equationComputers & Fluids, 1994
- Shallow water modeling in spherical coordinates: equation formulation, numerical implementation, and applicationJournal of Hydraulic Research, 1994
- A finite element study of tidal flow data for the North Sea and English ChannelAdvances in Water Resources, 1989
- A Comparison of Tidal Models for the Southwest Coast of Vancouver IslandPublished by Elsevier BV ,1988
- Some tests of precision for a finite element model of ocean tidesJournal of Computational Physics, 1986
- Review of Drag Coefficients over Oceans and ContinentsMonthly Weather Review, 1977