*Tomokazu Hokada^1,2, Sotaro Baba³, Atsushi Kamei⁴, Ippei Kitano⁵, Kenji Horie^1,2, Yoshikuni Hiroi^1,6, Yoichi Motoyoshi^1,2, Mami Takehara¹, Kazuyuki Shiraishi¹ (1.National Institute of Polar Research, 2.The Graduate University for Advanced Studies (SOKENDAI), 3.University of the Ryukyus, 4.Shimane University, 5.Kyushu University, 6.Chiba University)

*Yoshikuni Hiroi¹, Tomokazu Hokada², Tatsuro Adachi³, Yasuhito Osanai³, Yoichi Motoyoshi², Kazuyuki Shiraishi² (1.Chiba Univ, 2.National Institute of Polar Research, 3.Kyushu University)

*Tomokazu Hokada^1,2, Sotaro Baba³, Atsushi Kamei⁴, Ippei Kitano⁵, Kenji Horie^1,2, Yoshikuni Hiroi^1,6, Yoichi Motoyoshi^1,2, Mami Takehara¹, Kazuyuki Shiraishi¹ (1.National Institute of Polar Research, 2.The Graduate University for Advanced Studies (SOKENDAI), 3.University of the Ryukyus, 4.Shimane University, 5.Kyushu University, 6.Chiba University)

*Yoshikuni Hiroi¹, Tomokazu Hokada², Tatsuro Adachi³, Yasuhito Osanai³, Yoichi Motoyoshi², Kazuyuki Shiraishi² (1.Chiba Univ, 2.National Institute of Polar Research, 3.Kyushu University)