This study investigates long term shoreline changes of Japanese five beaches and estimates effect of sea level rise due to future climate change on beaches. The long term shoreline changes were investigated at Sendai, Niigata, Kashiwazaki, Kochi, and Miyazaki using old maps. In all those areas, notable erosion occurred from 1950 to 1990 and shoreline change tended to be stable after 1990. The future forecasts estimated shoreline changes using Bruun rule for SRES A1B scenario considered about wave heights and subsidence, in addition to sea level rise. The results were shoreline retreat over 10 m in five beaches. Shoreline retreat over 10 m will cause harmful impacts on the coastal management in the future.
