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unknown
Wave-current interaction in Willapa Bay
Authors
Banas
Bertin
+67 more
Booij
Burchard
Carniel
Chassignet
Dalrymple
Dunn
Emmett
Feddersen
Flather
Gonzales
Guza
Haas
Haas
Haidvogel
Haidvogel
Hanslow
Hanslow
Hedgpeth
Hench
Jarret
John C. Warner
Kang
Kirby
Komen
Kraus
Kraus
Kumar
Lane
Lesser
Liu
Long
Luettich
Madsen
Maitane Olabarrieta
Malhadas
McWilliams
Newberger
Nguyen
Nirnimesh Kumar
Nishimura
Oshiyama
Park
Pawlowicz
Perlin
Putrevu
Reniers
Robin
Rodi
Ruessink
Sayce
Shchepetkin
Smith
Smith
Spargo
Stacey
Svendsen
Tanaka
Tanaka
Uchiyama
Umlauf
Van Dongeren
Warner
Warner
Warner
Weir
Wilmott
Özkan-Haller
Publication date
13 December 2011
Publisher
'American Geophysical Union (AGU)'
Doi
Cite
Abstract
Author Posting. © American Geophysical Union, 2011. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 116 (2011): C12014, doi:10.1029/2011JC007387.This paper describes the importance of wave-current interaction in an inlet-estuary system. The three-dimensional, fully coupled, Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modeling system was applied in Willapa Bay (Washington State) from 22 to 29 October 1998 that included a large storm event. To represent the interaction between waves and currents, the vortex-force method was used. Model results were compared with water elevations, currents, and wave measurements obtained by the U.S. Army Corp of Engineers. In general, a good agreement between field data and computed results was achieved, although some discrepancies were also observed in regard to wave peak directions in the most upstream station. Several numerical experiments that considered different forcing terms were run in order to identify the effects of each wind, tide, and wave-current interaction process. Comparison of the horizontal momentum balances results identified that wave-breaking-induced acceleration is one of the leading terms in the inlet area. The enhancement of the apparent bed roughness caused by waves also affected the values and distribution of the bottom shear stress. The pressure gradient showed significant changes with respect to the pure tidal case. During storm conditions the momentum balance in the inlet shares the characteristics of tidal-dominated and wave-dominated surf zone environments. The changes in the momentum balance caused by waves were manifested both in water level and current variations. The most relevant effect on hydrodynamics was a wave-induced setup in the inner part of the estuary.Primary funding for this study was furnished by the U.S. Geological Survey, Coastal and Marine Geology Program, under the Carolinas Coastal Change Processes Project.2012-06-1
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Last time updated on 08/06/2012
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Last time updated on 01/04/2019