Abstract
The purpose of this study is to estimate the impact of economic damage due to the slope failure with global warming. Extreme rainfall is obtained with General Circulation Model outputs and RCP scenarios(GCM : MIROC5.0, MRI CGCM3, GFDL CM3.0, HadGEM2-ES, RCP senarios: RCP2.6, RCP4.5, RCP8.5), and calculated slope failure probability and sediment hazard economic damage in Japan(present year period, 2050 year period, and, 2100 year period). Sediment hazard adaptations is evaluated using economic damage results and sediment high risk area information is analyzed to mitigation of furture life. The results obtained are as follows; 1) As 2050 year period economic damage evaluation, all RCP senarios are indicated increase by 1.5-2.5billion yen compared to present economic damage. 2) As 2100 year period economic damage evaluation, RCP8.5 senario is indicated increase by 0.5billion yen compared to 2050 year periopd economic damage, and other senarios are similar to 2050 year period. 3) When adaptation measures were taken, additional economic damage in the future could be kept below 2.0 billion yen.
