*Ishizuka Masahide¹, Yasunori Kurosaki², Hiroaki Hagino³, Kazuki Nanko⁴, Gantsetseg Batdelger⁵, Yukio Yasuda⁴, Satoru Suzuki⁶ (1.Kagawa University, Faculty of Engineering and Design, 2.Tottori University, Arid land research center, 3.Forestry and Forest Products Research Institute, Tohoku Research Center, 4.Forestry and Forest Products Research Institute, Department of Disaster Prevention, Meteorology and Hydrology, 5.Information and Research Institute of Meteorology Hydrology and Environment, Mongolia, 6.Forestry and Forest Products Research Institute, Center for Forest Damage and Risk Management)