High resolution 3D storm surge and inundation numerical model used in the Jiaozhou Bay
胶州湾高分辨率三维风暴潮漫滩数值模拟

Based on FVCOM (Finite-Volume Coastal Ocean Model) ocean model with improved sea surface atmosphere item, the high resolution 3D storm surge and inundation numerical model (JS-FVCOM) was developed in the Jiaozhou Bay, which has a much finer resolution especially in the Dagu River Estuary, where the grid sizes equal to about 20 m. Besides, by adopting MPI calculating method, the calculating time can be further reduced, which can satisfy the need of practical operation. With different combinations of three essential factors such as astronomic tides, typhoon intensity and river flux, five numerical experimentations were designed to simulate the process of storm surge. The results show that 1)the storm surge increases rapidly with the increase of typhoon intensity, however, it starts to decrease significantly when the water level is higher than the dike; 2)in tidal estuary, where the flooding encounters high tide, the floodplain will happen easily; 3) the JS-FVCOM model can successfully simulate the process of the storm surge with reasonable flooded coverage and water level, which can provide scientific and credible simulation data for the emergency response work, such as risk assessment of storm surge and staff evacuation.