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Apr 26, 2012
Modeling Coastal Sediment Transport at the Mouth of the Colorado River, Texas
Authors: Lihwa Lin, Nicholas C. Kraus, and Ronnie G. BarcakAuthor Affiliations
Publication: Estuarine and Coastal Modeling (2003)
Abstract
This paper describes diagnostic numerical simulations of waves, current, sediment transport, and morphology change at the mouth of the Colorado River; Texas. The simulations were performed with the Inlet Modeling System (IMS) developed by the Coastal Inlets Research Program at the Coastal and Hydraulics Laboratory, U.S. Army Engineer Research and Development Center. The IMS version applied consists of the circulation and sediment transport model M2D coupled with the wave spectral model STWAVE. The study site exhibits complex patterns of sediment transport over a weir jetty and deposition in an impoundment basin. Six alternatives are evaluated by comparison of calculated morphologic change and sediment impoundment coupled with the hydrodynamics over a 1-year simulation interval. Simulations are performed with and without a sediment training structure, different jetty lengths, and different weir lengths and elevations. The alternatives are examined for effectiveness in improving efficiency of the impoundment basin and in reducing sediment shoaling in the entrance channel to decrease dredging frequency.
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© 2004 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Lihwa Lin
Research Hydraulics Engineer. U.S. Army Engineer Research and Development Center (ERDC), Coastal and Hydraulics Laboratory (CHL), 3909 Halls Ferry Road, Vicksburg, MS 39180
Nicholas C. Kraus
Senior Scientist, ERDC, CHL, 3909 Halls Ferry Road, Vicksburg, MS 39180
Ronnie G. Barcak
Civil Engineer, U.S. Army Corps of Engineers, Galveston District, 2000 Fort Point Road, Galveston, TX 77550
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