*Naoto Ishikawa¹, Ryokei Yoshimura², Tesfaye Kidane¹¹, Shin-ichiro Higashino³, Shin-ichi Kagashima⁴, Nobutatsu Mochizuki⁶, Ameha A. Muluneh⁵, Kirika Kitagawa⁴, Mamoru Kadoya⁷, Noriaki Obara¹⁰, Yo-ichiro Otofuji⁹, Minoru Funaki, Tetsu Kogiso¹, Masakazu Fujii⁸ (1.Graduate School of Human and Environmental Studies, Kyoto University, 2.Disaster Prevention Research Institute, Kyoto University, 3.Graduate School of Engineering, Kyushu University, 4.Yamagata University, 5.Addis Ababa University, 6.Kumamoto University, 7.X-TREME COMPOSITE JAPAN, 8.National Institute of Polar Research, 9.Japan Geochronology Network, 10.Robotista, 11.University of KwaZulu Natal)

*Naoto Ishikawa¹, Ryokei Yoshimura², Tesfaye Kidane¹¹, Shin-ichiro Higashino³, Shin-ichi Kagashima⁴, Nobutatsu Mochizuki⁶, Ameha A. Muluneh⁵, Kirika Kitagawa⁴, Mamoru Kadoya⁷, Noriaki Obara¹⁰, Yo-ichiro Otofuji⁹, Minoru Funaki, Tetsu Kogiso¹, Masakazu Fujii⁸ (1.Graduate School of Human and Environmental Studies, Kyoto University, 2.Disaster Prevention Research Institute, Kyoto University, 3.Graduate School of Engineering, Kyushu University, 4.Yamagata University, 5.Addis Ababa University, 6.Kumamoto University, 7.X-TREME COMPOSITE JAPAN, 8.National Institute of Polar Research, 9.Japan Geochronology Network, 10.Robotista, 11.University of KwaZulu Natal)

*Yasuhiko Ohara^1,2, Kyoko Okino³, Norikatsu Akizawa³, Masakazu Fujii⁴, Yumiko Harigane⁵, Naoto Hirano⁶, Ken-ichi Hirauchi⁷, Osamu Ishizuka⁵, Shiki Machida⁸, Katsuyoshi Michibayashi⁹, Alessio Sanfilippo¹⁰, Jonathan E. Snow¹¹, Hiroyuki Yamashita¹² (1.Hydrographic and Oceanographic Department of Japan, 2.Japan Agency for Marine-Earth Science and Technology, 3.Atmosphere and Ocean Research Institute, University of Tokyo, 4.National Institute of Polar Research, 5.Geological Survey of Japan/AIST, 6.Tohoku University, 7.Shizuoka University, 8.Chiba Institute of Technology, 9.Nagoya University, 10.University of Pavia, 11.University of Houston, 12.Kanagawa Prefectural Museum of Natural History)

*Kyoko Okino¹, Yasuhiko Ohara^2,3, Masakazu Fujii⁴, Tomoko Hanyu¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Japan Coast Guard, 3.Japan Agency for Marine-Earth Science and Technology, 4.National Institute of Polar Research)

*Masakazu Fujii¹, Kyoko Okino² (1.National Institute of Polar Research and SOKENDAI, 2.Atmosphere and Ocean Research Institute, The University of Tokyo)

*Kyoko Okino¹, Yasuhiko Ohara^2,3, Masakazu Fujii⁴, Tomoko Hanyu¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Japan Coast Guard, 3.Japan Agency for Marine-Earth Science and Technology, 4.National Institute of Polar Research)

*Masakazu Fujii¹, Kyoko Okino² (1.National Institute of Polar Research and SOKENDAI, 2.Atmosphere and Ocean Research Institute, The University of Tokyo)

*Minoru Ikehara¹, Kay I. Ohshima², Takuya Itaki³, Hiroshi Sato⁴, Masakazu Fujii⁵, Michiyo Yamamoto-Kawai⁶, Hiroki Matsui¹, Takahito Ikenoue⁷, . Scientific Party of R/V Hakuho-maru KH-19-1 cruise (1.Center for Advanced Marine Core Research, Kochi University, 2.ILTS, Hokkaido University, 3.GSJ, AIST, 4.Senshu University, 5.National Institute of Polar Research, 6.Tokyo University of Marine Science and Technology, 7.Marine Ecology Research Institute)

*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)

*Masakazu Fujii¹, Hiroshi Sato², Minoru Ikehara³, Yoshifumi Nogi¹, Taichi Sato⁴, Yasuyuki Nakamura⁵, Eri Helen Amsler⁶, Sam Sherriff-Tadano⁷ (1.National Institute of Polar Research and SOKENDAI, 2.Senshu University, 3.Kochi University, 4.AIST, 5.JAMSTEC, 6.University of Bern, 7.AORI, UTokyo)

*Hiroshi Sato¹, Masakazu Fujii^2,3, Hiroki Matsui⁴, Minoru Ikehara⁴ (1.School of Business Administration, Senshu University, 2.NIPR, 3.SOKENDAI, 4.Center for Advanced Marine Core Research, Kochi University)

*Hiroshi Sato¹, Masakazu Fujii^2,3, Hiroki Matsui⁴, Minoru Ikehara⁴ (1.School of Business Administration, Senshu University, 2.NIPR, 3.SOKENDAI, 4.Center for Advanced Marine Core Research, Kochi University)

*Minoru Ikehara¹, Takuya Itaki², Masakazu Fujii³ (1.Center for Advanced Marine Core Research, Kochi University, 2.GSJ, AIST, 3.National Institute of Polar Research)

*Minoru Ikehara¹, Takuya Itaki², Masakazu Fujii³ (1.Center for Advanced Marine Core Research, Kochi University, 2.GSJ, AIST, 3.National Institute of Polar Research)