Simulation of Storm-Induced Cross-Shore Sediment Transport at Anmok Beach with Wave-Resolving CST3D-WR

Abstract

An intensive field survey was carried out before and after a typhoon Goni at Anmok Beach. east coast of Korea, where a submerged breakwater exists. Survey items include offshore wave height. direction. and period: nearshore wave height, direction, and period. current and water level. bed load and suspended sediment load; bathymetry, and shoreline position. Interesting bathymetric change was observed after the typhoon: offshore sediment transport and cons bathymetric change happened along the most coastline. The data exhibit the impact of the typhoon clearly. A wave-resolving numerical modelling system CS23D-WR was applied to the site for the typhoon situation, and qualitatively well reproduced the field bathymetric change.