*Kohei Mizobata¹, Daisuke Hirano², Ryosuke Makabe², Yutaka Watanabe³, Yoshiyuki Nakano⁴, Kitade Yujiro¹, Shigeru Aoki³ (1.Tokyo University of Marine Science and Technology, 2.National Institute of Polar Research, 3.Hokkaido Univesity, 4.Japan Agency for Marine-Earth Science and Technology)

*Katsuro Katsumata¹, Shigeru Aoki², Kay I. Ohshima², Michiyo Yamamoto-Kawai³ (1.University of Tokyo, 2.Hokkaido University, 3.Tokyo University of Marine Science and Technologh)

*Yoshihiko Ohashi¹, Daisuke Hirano^1,2, Kohei Mizobata³, Kazuya Kusahara⁴, Kazuki Nakata⁵, Kazuya Ono⁶, Masakazu Fujii^1,2, Ryosuke Makabe^1,2, Kay I. Ohshima⁶, Takeshi Tamura^1,2, Shigeru Aoki⁶ (1.National Institute of Polar Research, 2.SOKENDAI, 3.Tokyo University of Marine Science and Technology, 4.Japan Agency for Marine-Earth Science and Technology, 5.Japan Aerospace Exploration Agency, 6.Hokkaido University)

*Shigeru Aoki¹, Katsuro Katsumata², Kei Yoshimura² (1.Hokkaido University, 2.The University of Tokyo)

*Daisuke Hirano^1,2, Kohei Mizobata³, Kazuya Kusahara⁴, Kazuya Ono⁵, Shigeru Aoki⁵ (1.National Institute of Polar Research, 2.The Graduate University for Advanced Studies, SOKENDAI, 3.Tokyo University of Marine Science and Technology, 4.Japan Agency for Marine-Earth Science and Technology, 5.Institute of Low Temperature Science, Hokkaido University)