Coastal Flood Risk
The risks of disaster are intertwined, and there is an occurrence possibility of simultaneous damage in multiple areas. This study assesses aggregate risk of storm surge by typhoons which attack Ise and Mikawa bay, and employs synthetic typhoon data-sets made by the stochastic typhoon model. Storm surges in Ise and Mikawa bay are calculated by an empirical formula and a nonlinear shallow water equation model. The study estimates loss function in Mikawa bay using the results of inundation simulation, and calculates damage using asset map. Event curve is estimated by the relationship of annual exceedance probability and aggregate loss.