摘要: In this work we will employ an unstructured grid, coupled wave- current-sediment model to study the influence of wave-induced near bottom stresses on the sediment transport and morphological change within the Skagit River delta an... 展开 In this work we will employ an unstructured grid, coupled wave- current-sediment model to study the influence of wave-induced near bottom stresses on the sediment transport and morphological change within the Skagit River delta and Skagit Bay in Western Washington. The resulting coupled wave- current model will resolve the influence of external processes, including tidal forcing, buoyant river discharge, fluvial sediment supply and wind on tidal flat sediment transport. It will be used to evaluate the capabilities of state- of-the-art open source sediment models and to examine dynamic processes influencing net sediment transport over tidal flats and channel networks including convergence fronts; tidal asymmetries; buoyancy forcing; spatial and temporal variations in bed stress; and interactions between channel networks and adjacent tidal flats. 收起