Honami Watanabe², *Chiyuki Narama¹, Yoshitaka Mori², Katsuhisa Kawashima³ (1.Niigata University, Program of Field Research in the Environmental Sciences, 2.Graduate School of Science and Technology, Niigata University, 3.Research Institute for Natural Hazards & Disaster Recovery, Niigata University)

*Kazuhiro Kimura^1,5, Katsuhisa Kawashima², Takane Matsumoto², Akihiko SASAKI⁴, Tsutomu Iyobe³, Junichi Miyamura¹, Masaki Nakahashi¹ (1.Japan Meteorological Agency, 2.Research Institute for Natural Hazards and Disaster Recovery, Niigata University, 3.Faculty of Engineering, Kyoto University, 4.Department of Geography and Environmental Studies, Kokushikan University, 5.Graduate School Science and Technology, Niigata University)

*Kazuhiro Kimura^1,5, Katsuhisa Kawashima², Takane Matsumoto², Akihiko SASAKI⁴, Tsutomu Iyobe³, Junichi Miyamura¹, Masaki Nakahashi¹ (1.Japan Meteorological Agency, 2.Research Institute for Natural Hazards and Disaster Recovery, Niigata University, 3.Faculty of Engineering, Kyoto University, 4.Department of Geography and Environmental Studies, Kokushikan University, 5.Graduate School Science and Technology, Niigata University)