*Yoshihiro Tomikawa^1,2, Kaoru Sato³, Yoshitaka Saito⁴, Isao Murata⁵, Naohiko Hirasawa^1,2, Masashi Kohma³, Kyoichi Nakashino⁶, Daisuke Akita⁷, Takuma Matsuo⁸, Masatomo Fujiwara⁹, Lihito Yoshida² (1.National Institute of Polar Research, 2.The Graduate University for Advanced Studies, SOKENDAI, 3.The University of Tokyo, 4.Japan Aerospace Exploration Agency, 5.Tohoku University, 6.Tokai University, 7.Tokyo Institute of Technology, 8.Meiji University, 9.Hokkaido University)

*Lihito Yoshida¹, Yoshihiro Tomikawa^2,1, Mitsumu K Ejiri^2,1, Masashi Kohma³, Kaoru Sato³ (1.the Graduate University for Advanced Studies, 2.National Institute of Polar Research, 3.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo)