Abstract
Recently heavy rains occur frequently and researchers consider a climate change may be one of the causes. Thus, this study estimates the influence of the sea surface temperature changes on rainfall intensity due to a Typhoon. First the Typhoon No.18, 2013 which caused heavy damage on Kyoto and Shiga prefectures due to the heavy rainfall is reproduced (control run). Then its SST global warming experiment is carried out using latest meso-scale meteorological model WRF. As the result of the SST global warming experiment, the catchment average rainfall of the Yodogawa river above Hirakata becomes 1.5 times larger than that of the control run. This result indicates a possibility that further heavier rainfall may occur in the future due to a climate change.
