Japan Science and Technology Agency, Geo-hazards division, Disaster Prevention Research Institute, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
Geo-hazards division, Disaster Prevention Research Institute, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
Laboratory of Erosion Control, Division of Forest and biomaterial Science, Gradate school of Agriculture, Kyoto University, Kyoto, 606-8502 Japan
Laboratory of Erosion Control, Division of Forest and biomaterial Science, Gradate school of Agriculture, Kyoto University, Kyoto, 606-8502 Japan
Department of Integrative Environmental Sciences, Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, 305-8572 Japan