Numerical Modelling of Infragravity Wave Response during Delilah
1999
Van Dongeren, A. | Reniers, A.
In this paper the nonlinear numerical model SHORECIRC is applied to simulate the intragravity wave conditions on two days during the 1990 Delilah campaign. In order to simulate the wave conditions an algorithm has been derived which synthesizes a directional of/shore wavefield from data including the bound, directional low-frequency components. The model-data comparison shows that the mean short wave transformation on the real bathymetry is predicted correctly, and that the mean longshore current is predicted very well for one of the two days without tuning the parameters. Furthermore, the structure of the infragravity spectrum as measured in the nearshore array is correctly represented but the energy level is under'estimated.Research report for Rijkswaterstaat, RIKZ.
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