Abstract
Surge-Wave-Tide coupled model (SuWAT) has been developed and improved its applicability. Effect of tidal variation on storm surge is discussed by a simplified bathymetry test and hindcast simulation in Korean west coast. Effect of wave setup is also confirmed by hindcast of storm surge in Kochi coast caused by typhoon Anita. SuWAT became enabling to use time history data of atmosphere as a boundary forcing and applied to hindcast simulation of typhoon Vera, which caused the national worst storm surge disaster. Climate change experiment result by GCM is employed for future coastal disaster projections, and the results indicate future storm surge would increase in the Ise Bay and the west Seto Inland Sea.
