*Yuiya Teramoto1, Nobuhisa Matuta1 (1.Okayama University)
convener:Tatsuto Aoki(School of Regional Development Studies, Kanazawa University), Nobuhisa Matsuta(Okayama University Graduate School of Education), Toshihiko Sugai(Department of Natural Environmental Studies, Institute of Environmental Studies, Graduate School of Frontier Science, The University of Tokyo), Mamoru Koarai(Earth Science course, College of Science, Ibaraki University)