DEVELOPMENT OF LANDSLIDE AND DEBRIS FLOW DISASTER INFORMATION DISTRIBUTION SERVICE TO ENHANCE SELF-EVACUATION

Abstract

 A landslide and debris flow disaster information distribution service was developed to raise resident's awareness and enhance safe and quick self-evacuation. The information distribution service provides the information on the occurrence area of landslide and debris flow directly to the users. The landslide and debris flow occurrence is estimated by using the integrated information of the spatial and temporal rainfall distribution measured by the X-band multi parameter Radar, landslide and debris flow hazard expected area and topographic factors such as slope. The landslide and debris flow disaster information service is distributed by using an application software which works on Android and iOS base smartphones and PCs. The applicability of the predicted landslide and debris flow occurrence area was discussed by using the sediment disasters occurred in Tochigi prefecture in September 2015. The predicted alert areas have good agreements with the landslide and debris flow occurred area in Tochigi.