*Ikumi Oyabu^1,2, Kenji Kawamura^1,2,3, Shuji Fujita^1,2, Ryo Inoue², Hideaki Motoyama^1,2, Kotaro Fukui⁴, Motohiro Hirabayashi¹, Yu Hoshina⁵, Naoyuki Kurita⁵, Fumio Nakazawa^1,2, Hiroshi Ohno⁶, Konosuke Sugiura⁷, Toshitaka Suzuki⁸, Shun Tsutaki^1,2, Ayako Abe-Ouchi⁹, Masashi Niwano¹⁰, Frédéric Parrenin¹¹, Fuyuki SAITO³, Masakazu Yoshimori⁹ (1.National Institute of Polar Research, Research Organization of Information and Systems, 2.Graduate Institute for Advanced Studies, SOKENDAI, 3. Japan Agency for Marine Science and Technology, 4.Tateyama Caldera Sabo Museum, 5.Nagoya University, 6.Kitami Institute of Technology, 7.University of Toyama, 8.Yamagata University, 9.Atmosphere and Ocean Research Institute, The University of Tokyo, 10.Meteorological Research Institute, Japan Meteorological Agency, 11. Institut des Géosciences de l’Environnement, France)

*Ryo Inoue¹, Shuji Fujita^1,2, Kenji Kawamura^1,2,3, Ikumi Oyabu^1,2, Fumio Nakazawa^1,2, Hideaki Motoyama^1,2, Teruo Aoki² (1.Graduate Institute for Advanced Studies, SOKENDAI, 2.National Institute of Polar Research, 3.Japan Agency for Marine-Earth Science and Technology)