The NearCoM (Nearshore Community Model) model is extended for far-field applications in the multi-scale modeling project. In the application to San Francisco Bight and Ocean Beach, NearCoM integrates three modules: 1) SWAN for wave generation and propagation; 2) SHORECIRC for prediction of tidal current, wind-induced current and wave-induced nearshore circulation; and 3) H-H type sediment module for prediction of sediment transport and morphology change.
Figure caption: Boundary-fitted grids used in NearCoM (SWAN and SHORECIRC). Left: SF grid for the San Francisco Bight domain. Right: the nested BEACH grid for the Ocean Beach domain.
Animation: Tidal current at the mouth of San Francisco Bay. The result is from the SF domain model.
Figure caption: Wave height distribution (right) and longshore currents (left) obtained from the Ocean Beach domain model. Wave conditions: Hs=4m, Pdir = 40 deg, Tp=15s at SF open boundaries. Wind: 10m/s SW. The figure shows strong longshore currents and vortices generated by breaking waves at the erosional hot spot location..
