2015 Volume 13 Pages 57-65
The purpose of this study is to provide higher estimation of heavy rain scale in Japan by our proposed method. An installation of an observation points is insufficient for the estimation. Therefore, due to this insufficiency, we used the observation values of a monitoring point as a substitute for the values of different areas. However, the values have a discrepancy between their observation point and the location of the actual damage. The calculation of the risk indices requires a time interval; thus, there is a discrepancy between the temporal resolution and the actual timing at which the damage occurred. This study proposes an indicator model that provides estimation of heavy rain scale. The estimated values and indicators were implemented and evaluated by using our indicator model. The indicators correlated significantly well with the actual rainfall in comparison to the observation values. The proposed indicator model results that the indicators may estimate heavy rain with high immediacy when considering the purpose of monitoring disaster damage.
