*Nobuhito Ohte¹, Ken'ichi Osaka², Masanori Katsuyama³, Tomoki Oda⁴, Shigeru Mizugaki⁵ (1.Department of Social Informatics, Graduate School of Informatics, Kyoto University, 2.Department of Ecosystem Studies, School of Environmental Science, The University of Shiga Prefecture, 3.Global Survivability Studies Unit, Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, 4.Department of Forest Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 5.Civil Engineering Research Institute for Cold Region, Public Works Research Institute)