Show simple item record

contributor authorWesterink, Joannes J.
contributor authorLuettich, Richard A.
contributor authorFeyen, Jesse C.
contributor authorAtkinson, John H.
contributor authorDawson, Clint
contributor authorRoberts, Hugh J.
contributor authorPowell, Mark D.
contributor authorDunion, Jason P.
contributor authorKubatko, Ethan J.
contributor authorPourtaheri, Hasan
date accessioned2017-06-09T16:20:52Z
date available2017-06-09T16:20:52Z
date copyright2008/03/01
date issued2008
identifier issn0027-0644
identifier otherams-66206.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4207517
description abstractSouthern Louisiana is characterized by low-lying topography and an extensive network of sounds, bays, marshes, lakes, rivers, and inlets that permit widespread inundation during hurricanes. A basin- to channel-scale implementation of the Advanced Circulation (ADCIRC) unstructured grid hydrodynamic model has been developed that accurately simulates hurricane storm surge, tides, and river flow in this complex region. This is accomplished by defining a domain and computational resolution appropriate for the relevant processes, specifying realistic boundary conditions, and implementing accurate, robust, and highly parallel unstructured grid numerical algorithms. The model domain incorporates the western North Atlantic, the Gulf of Mexico, and the Caribbean Sea so that interactions between basins and the shelf are explicitly modeled and the boundary condition specification of tidal and hurricane processes can be readily defined at the deep water open boundary. The unstructured grid enables highly refined resolution of the complex overland region for modeling localized scales of flow while minimizing computational cost. Kinematic data assimilative or validated dynamic-modeled wind fields provide the hurricane wind and pressure field forcing. Wind fields are modified to incorporate directional boundary layer changes due to overland increases in surface roughness, reduction in effective land roughness due to inundation, and sheltering due to forested canopies. Validation of the model is achieved through hindcasts of Hurricanes Betsy and Andrew. A model skill assessment indicates that the computed peak storm surge height has a mean absolute error of 0.30 m.
publisherAmerican Meteorological Society
titleA Basin- to Channel-Scale Unstructured Grid Hurricane Storm Surge Model Applied to Southern Louisiana
typeJournal Paper
journal volume136
journal issue3
journal titleMonthly Weather Review
identifier doi10.1175/2007MWR1946.1
journal fristpage833
journal lastpage864
treeMonthly Weather Review:;2008:;volume( 136 ):;issue: 003
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record