IMPACT ASSESSMENTS OF CLIMATE CHANGE ON BEACH TOPOGRAPHY IN TOSA BAY, JAPAN

For coastal zone management, it is important to predict future changes in external forces and beach topography due to climate change. In particular, as wave direction is one of the dominant factors in the longshore sediment transport, changes in wave direction exert significant impacts on future beach topography. Despite many studies carried out on the future projection of wave climate, there are few examples of studies on future beach topography due to climate change. This study aims to assess future changes in wave direction by wave simulation considering climate change, and to clarify the effect on beach topography on actual beaches.