Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Incident Boundary Conditions for Wave Transformation
The nearshore wave transformation model STWAVE is used to transform hindcast wave time histories to the shore to estimate longshore sediment transport rates. These transport rates are used to evaluate engineering design of beach fills and coastal shore protection structures. The boundary conditions used to force STWAVE are typically derived from the Wave Information Studies (WIS) wind-wave hindcast database. In the past, only bulk wave parameters (height, period, and direction) were available from the database, and these parameters were used to generate parametric spectra to drive the transformation model. Thus, the detailed spectral information from the hindcast was lost in the transition to the nearshore. The updated WIS hindcast is archiving wave spectra, as well as parameters, for intermediate-depth sites along the coast. The purpose of this paper is to evaluate the feasibility of driving a nearshore model with hindcast spectra versus parameters for a two-year period at Duck, North Carolina. Comparisons are made with nearshore gauge measurements. The relative impacts of the incident boundary input on sediment transport estimates for the two-year period are evaluated.
Incident Boundary Conditions for Wave Transformation
The nearshore wave transformation model STWAVE is used to transform hindcast wave time histories to the shore to estimate longshore sediment transport rates. These transport rates are used to evaluate engineering design of beach fills and coastal shore protection structures. The boundary conditions used to force STWAVE are typically derived from the Wave Information Studies (WIS) wind-wave hindcast database. In the past, only bulk wave parameters (height, period, and direction) were available from the database, and these parameters were used to generate parametric spectra to drive the transformation model. Thus, the detailed spectral information from the hindcast was lost in the transition to the nearshore. The updated WIS hindcast is archiving wave spectra, as well as parameters, for intermediate-depth sites along the coast. The purpose of this paper is to evaluate the feasibility of driving a nearshore model with hindcast spectra versus parameters for a two-year period at Duck, North Carolina. Comparisons are made with nearshore gauge measurements. The relative impacts of the incident boundary input on sediment transport estimates for the two-year period are evaluated.
Incident Boundary Conditions for Wave Transformation
J. M. Smith (Autor:in) / M. B. Gravens (Autor:in)
2006
13 pages
Report
Keine Angabe
Englisch
Physical & Chemical Oceanography , Operations Research , Computer Software , Ocean waves , Boundaries , Sediment transport , Coastal engineering , Computer programs , Data bases , Ocean models , Gages , Ocean tides , Shore protection , Transformations , Beaches , North carolina , Feasibility studies , Inshore areas , Parametric analysis , Coastal regions , Hindcast spectra , Wave transformation , Wis(Wave information studies) , Stwave model , Nearshore , Parametric spectra , Transformation models
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