*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)

*Norikatsu Akizawa¹, Shiki Machida², Kyoko Okino¹, Yasuhiko Ohara³ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.Hydrographic and Oceanographic Department of Japan)

*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)

*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)