2:45 PM - 3:00 PM
*Kazuhisa A. Chikita1, Hideo Oyagi2, Shiori Yamane6, Tadao Aiyama3, Toshihisa Itaya4, Misao Okada5 (1.Department of Earth and Planetary Sciences, Faculty of Science, Hokkaido University, 2.College of Humanities and Sciences, Nihon University, 3.The Fukuda Hydrology Center, Inc., 4.Shin Engineering Consultant, Inc., 5.Suiko-Research, Inc., 6.Department of Earth and Planetary Sciences, School of Science, Hokkaido University)