*Reona Hiramine1, Kaori Aoki2, Daisuke Ishimura1,2, Makoto Kobayashi2 (1.Department of Geography, Tokyo Metropolitan University, 2.Research Center for Volcanic Hazards and Their Mitigation, Tokyo Metropolitan University)
convener:Takashi Chiba(Faculty of Bioresource Sciences, Akita Prefectural University), Tetsuya Shinozaki(Center for Research in Isotopes and Environmental Dynamics (CRiED), University of Tsukuba), Daisuke Ishimura(Department of Geography, Tokyo Metropolitan University), Chairperson:Daisuke Ishimura(Department of Geography, Tokyo Metropolitan University)