*Daisuke Ishimura¹, Hiroyuki Tsutsumi², Naoya Takahashi³, Ryuhei Oda¹, Jun Matsukaze¹, Heitaro Kaneda⁴, Motoya Kobayashi⁴, Yasuhiro Kumahara⁵, Makoto Kobayashi⁶, Toshihiko Ichihara⁷ (1.Department of Geography, Tokyo Metropolitan University, 2.Department of Environmental Systems Science, Faculty of Science and Engineering, Doshisha University, 3.Department of EarthScience, Tohoku University, 4.Graduate School of Science, Chiba University, 5.Graduate School of Education, Hiroshima University, 6.Research Center for Volcanic Hazards and Their Mitigation, Tokyo Metropolitan University, 7.Sedimentary Environments Research)

*Yusuke Suganuma^1,2, Moto Kawamata², Kota Katsuki³, Tatsuo Kanamaru⁴, Heitaro Kaneda⁵, Takushi Koyama⁶, Tanabe Yukiko^1,2, Daisuke Shibata⁷, Takeshige Ishiwa¹, Takuya Itaki⁸, Jun'ichi Okuno^1,2, Osamu Seki⁹, Itsuki Suto¹⁰, Masakazu Fujii^1,2, Hideki Miura^1,2 (1.National institute of Polar Research, 2.SOKENDAI, 3.Shimane University, 4.Nihon University, 5.Chiba University, 6.Oita University, 7.Tsukuba University, 8.GSJ, AIST, 9.Hokkaido University, 10.Nagoya University)

*Yoichi Fukuda¹, Jun Nishijima², Takahito Kazama¹, Kazuki Nakamura³, Koichiro Doi⁴, Yusuke Suganuma⁴, Jun'ichi Okuno⁴, Akito Araya⁵, Heitaro Kaneda⁶, Yuichi Aoyama⁴, Hideki Miura⁴ (1.Department of Geophysics, Graduate School of Science, Kyoto University, 2.Graduate School of Engineering, Kyushu University, 3.Faculty of Engineering, Nihon University, 4.National Institute of Polar Research, 5.ERI, University of Tokyo, 6.Graduate School of Science, Chiba University)

*Yoichi Fukuda¹, Jun Nishijima², Takahito Kazama¹, Kazuki Nakamura³, Koichiro Doi⁴, Yusuke Suganuma⁴, Jun'ichi Okuno⁴, Akito Araya⁵, Heitaro Kaneda⁶, Yuichi Aoyama⁴, Hideki Miura⁴ (1.Department of Geophysics, Graduate School of Science, Kyoto University, 2.Graduate School of Engineering, Kyushu University, 3.Faculty of Engineering, Nihon University, 4.National Institute of Polar Research, 5.ERI, University of Tokyo, 6.Graduate School of Science, Chiba University)