*Ikumi Oyabu^1,2, Kenji Kawamura^1,2, Christo Buizert³, Frédéric Parrenin⁴, Ryu Uemura⁵, Motohiro Hirabayashi¹, Jun Ogata¹, Kyotaro Kitamura¹, Kaori Fukuda¹, Shuji Fujita^1,2, Tomotaka Saruya¹, Kumiko Goto-Azuma^1,2 (1.National Institute of Polar Research, Research Organization of Information and Systems, 2.Graduate Institute for Advanced Studies, SOKENDAI, 3.Oregon State University, 4. Institut des Géosciences de l’Environnement, 5.Nagoya University)

*Tomotaka Saruya¹, Atsushi Miyamoto², Shuji Fujita^1,3, Kumiko Goto-Azuma^1,3, Motohiro Hirabayashi¹, Akira Hori⁴, Makoto Igarashi¹, Yoshinori Iizuka⁵, Takao Kameda⁴, Hiroshi Ohno⁴, Wataru Shigeyama³, Shun Tsutaki^1,3 (1.National Institute of Polar Research, 2. Institute for the Advancement of Graduate Education, Hokkaido University, 3.Polar Science Program, Graduate Institute for Advanced Studies, SOKENDAI, 4.Kitami Institute of Technology, 5.Institute of Low Temperature Science, Hokkaido University)

*Shuji Fujita^1,2, Tomotaka Saruya¹, Motohiro Hirabayashi¹, Kumiko Goto-Azuma^1,2, Jun Ogata¹, kaori Fukuda¹, kyotaro Kitamura¹, Hiroshi Ohno³, Iizuka Yoshinori⁴ (1.National Institute of Polar Research, Research Organization of Information and Systems(ROIS), 2.Graduate Institute for Advanced Studies, SOKENDAI, Department of Advanced Studies,, 3.Kitami Insititute of Technology, Japan, 4.ILTS, Hokkaido University Japan)

*Mai Matsumoto^1,2, Yoshinori Iizuka², Teruo Aoki³, Satoru Adachi⁴, Tomotaka Saruya³, Akihiro Hachikubo⁵, Kaoru Kawakami², Takeshi Saito², Sumito Matoba², Shuji Fujita^3,6 (1.Graduate School of Environmental Science, Hokkaido University, 2.Institute of Low Temperature Science, Hokkaido University, 3.National Institute of Polar Research, 4.Snow and Ice Research Center, NIED, 5.Kitami institute of Technology, 6.The Graduate University for Advanced Studies, SOKENDAI)