Investigation about the situation of the landslide disaster using airborne Lidar data

Abstract

Kokusai Kogyo Co., Ltd was entrusted from Tokyo Metropolitan Government and acquired airborne Lidar data on October 18 and October 27. The damage area of the mudflow has been visualized by ELSAMAP created from DHM (difference of DSM and DEM). Moreover, sediment volume estimation is carried out using the airborne Lidar data before and after disaster. Airborne Lidar data will be useful for the future disaster-prevention activity in Izu-Oshima.