ESTIMATION OF INUDUATION IN NEMURO STORM SURGE USING COUPLED MODELING OF WAVE AND STORM SURGE

Abstract

 In this study, we conducted a series of inuduation simulatoins for several storm events that induced the catastrophic strom surges on the Hokkaido coast and investigated critical points of the surge and wave simulation for understanding flood risk. Results of the storm surge simulation showed that the inundation begins from low level grounds and a quay of fishing port. Setting the proper height on the quay of port is important to prevent the surge-induced inundation. It was found that the storm surge height changes with the different wind speed limit in Nemuro. In addition, there are no large difference in storm surge height on other coasts due to the wind speed limit. Therefore, it was found that suitable wind speed limitation is critical to the accurate prediction of the storm surge and wave in a region such as the Nemuro strait.