*Maksym Gusyev¹、Yoshito Kikumori¹、Terumasa Nishihara²、Takeshi Hayashi³、Kimpei Ichiyanagi⁴、Naofumi Akata⁵、Tomoki Oda⁶、Uwe Morgenstern⁷、Michael Stewart⁷ (1.International Centre for Water Hazard and Risk Management (ICHARM), Public Works Research Institute (PWRI)、2.Civil Engineering Research Institute for Cold Region, PWRI、3.Akita University、4.Kumamoto University、5.National Institute for Fusion Science (NIFS)、6.University of Tokyo、7.GNS Science, New Zealand)