DEVELOPMENT OF RISK INFORMATION IN SEDIMENT DISASTER PRONE AREAS DUE TO CLIMATE CHANGE ADAPTATION

Abstract

 In this study, we attempted to develop information that can be used as an adaptation measure to prepare spatio-temporal sediment disaster prone areas risk information according to maximum heavy rainfall from the past to the future forecast. The target area is Nagano Prefecture. The risk information of the warning area was derived using the probable maximum precipitation as the maximum rainfall. In addition, we have developed probability risk map from the past to the future of the caution zone obtained by using slope failure probability model as spatio-temporal sediment disaster prone areas risk information. As a result, The sediment disaster prone areas risk information has been developed in each climate condition (present, near furture and future), and the quantification of risks has been attempted the time change according to local area. Information on local governments was obtained to need to support of counter measure. In addition, resulting output data was suggested to use a case study of adaptation measures.