*Fumitoshi Imaizumi¹, Kazuki Yamamoto¹, Atsushi Ikeda⁴, Okihiro Ohsaka¹, Hiroyuki Sugimoto², Satoru Suzuki², Shinichi Sato², Yoshiaki Kashiwabara³, Naoki Nishimura³ (1.Faculty of Agriculture, Shizuoka University, 2.Fuji Sabo Office, Ministry of Land, Infrastructure and Transport, 3.Asia Air Survey Co., Ltd., 4.Faculty of Life and Environmental Sciences, Tsukuba University)