*Takuto Ando¹, Yoshinori Iizuka², Hiroshi Ohno³, Shin Sugiyama² (1.Arctic Research Center, Hokkaido University, 2.Institute of Low Temperature Science, Hokkaido University, 3.Kitami Institute of Technology)

*Fumio Nakazawa^1,2, Kenji Kawamura^1,2, Ikumi Oyabu¹, Hiroshi Ohno³, Konosuke Sugiura⁴, Shuji Fujita^1,2, Kumiko Goto-Azuma^1,2, Hideaki Motoyama^1,2 (1.National Institute of Polar Research, 2.SOKENDAI (The Graduate University of Advanced Studies), 3.Kitami Institute of Technology, 4.University of Toyama)

*Shuji Fujita^1,2, Kenji Kawamura^1,2, Hiroshi Ohno³, Ikumi Oyabu^4,1, Fumio Nakazawa¹, Konosuke Sugiura⁵, Ayako Abe-Ouchi⁶, Shun Tsutaki⁶, Fuyuki Saito⁷, Ralf Greve⁸, Hideaki Motoyama^1,2, Kumiko Goto-Azuma^1,2, Kenichi Matsuoka⁹ (1.National Institute of Polar Research, Research Organization of Information and Systems(ROIS), 2.Department of Polar Science, The Graduate University for Advanced Studies (SOKENDAI), Japan, 3.Kitami Institute of Technology, Japan, 4.Japan Society for the Promotion of Science (JSPS), Japan, 5.Toyama University, Japan, 6.Atmosphere and Ocean Research Institute, The University of Tokyo, Japan, 7.Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Japan, 8.Institute of Low Temperature Science, Hokkaido University, Japan, 9.Norwegian Polar Institute, Norway)

*Fumio Nakazawa^1,2, Kenji Kawamura^1,2, Ikumi Oyabu¹, Hiroshi Ohno³, Konosuke Sugiura⁴, Shuji Fujita^1,2, Kumiko Goto-Azuma^1,2, Hideaki Motoyama^1,2 (1.National Institute of Polar Research, 2.SOKENDAI (The Graduate University of Advanced Studies), 3.Kitami Institute of Technology, 4.University of Toyama)

*Tokuta Yokohata¹, Kazuyuki Saito², Tomohiro Hajima², Akihiko Ito¹, Kumiko TAKATA¹, Hiroshi Ohno³, Go Iwahana⁴, Hirokazu Machiya², Tetsuo Sueyoshi⁵ (1.National Institute for Environmental Studies, 2.Japan Agency for Marine-Earth Science and Technology, 3.Kitami Institute of Technology, 4.Alaska University, 5.National Institute for Polar Research)

*Kazuyuki Saito¹, Hirokazu Machiya¹, Go Iwahana², Hiroshi Ohno³, Tokuta Yokohata⁴ (1.Japan Agency for Marine-Earth Science and Technology, 2.International Arctic Research Center, University of Alaska Fairbanks, 3.Kitami Institute of Technology, 4.National Institute for Environmental Studies)

*Kazuyuki Saito¹, Hirokazu Machiya¹, Go Iwahana², Hiroshi Ohno³, Tokuta Yokohata⁴ (1.Japan Agency for Marine-Earth Science and Technology, 2.International Arctic Research Center, University of Alaska Fairbanks, 3.Kitami Institute of Technology, 4.National Institute for Environmental Studies)

*Kenji Kawamura^1,2,3, Ryu Uemura⁴, Hideaki Motoyama^1,2, Iizuka Yoshinori⁵, Kazuho Horiuchi⁶, Shuji Aoki⁷, Kumiko Goto-Azuma^1,2, Shuji Fujita^1,2, Osamu Seki⁵, Motohiro Hirabayashi¹, Fumio Nakazawa^1,2, Ikumi Oyabu¹, Hiroshi Ohno⁸, Shun Tsutaki⁹, Ayako Abe-Ouchi⁹ (1.National Institute of Polar Research, Research Organization of Information and Systems, 2.SOKENDAI, 3.Japan Agency for Marine-Earth Science and Technoloty, 4.University of the Ryukyus, 5.Hokkaido University, 6.Hirosaki University, 7.Tohoku University, 8.Kitami Institute of Technology, 9.University of Tokyo)

*Ryu Uemura¹, Hideaki Motoyama², Valerie Masson-Delmotte³, Jean Jouzel³, Kenji Kawamura², Kumiko Goto-Azuma², Shuji Fujita², Takayuki KURAMOTO^2,10, Motohiro Hirabayashi², Takayuki Miyake², Hiroshi Ohno^4,2, Koji Fujita⁵, Ayako Abe-Ouchi⁶, Yoshinori Iizuka⁷, Shinichiro Horikawa^7,5, Makoto Igarashi², Keisuke Suzuki⁸, Toshitaka Suzuki⁹, Yoshiyuki Fujii² (1.University of the Ryukyus, 2.National Instititute of Polar Research, 3.LSCE, CEA-CNRS, 4.Kitami Institute of Technology, 5.Nagoya University, 6.The Unviersity of Tokyo, 7.Hokkaido University, 8.Shinshu University, 9.Yamagata University, 10.Fukushima prefectual center for environmental creation)

*Kenji Kawamura^1,2,3, Ryu Uemura⁴, Hideaki Motoyama^1,2, Iizuka Yoshinori⁵, Kazuho Horiuchi⁶, Shuji Aoki⁷, Kumiko Goto-Azuma^1,2, Shuji Fujita^1,2, Osamu Seki⁵, Motohiro Hirabayashi¹, Fumio Nakazawa^1,2, Ikumi Oyabu¹, Hiroshi Ohno⁸, Shun Tsutaki⁹, Ayako Abe-Ouchi⁹ (1.National Institute of Polar Research, Research Organization of Information and Systems, 2.SOKENDAI, 3.Japan Agency for Marine-Earth Science and Technoloty, 4.University of the Ryukyus, 5.Hokkaido University, 6.Hirosaki University, 7.Tohoku University, 8.Kitami Institute of Technology, 9.University of Tokyo)

*Ryu Uemura¹, Hideaki Motoyama², Valerie Masson-Delmotte³, Jean Jouzel³, Kenji Kawamura², Kumiko Goto-Azuma², Shuji Fujita², Takayuki KURAMOTO^2,10, Motohiro Hirabayashi², Takayuki Miyake², Hiroshi Ohno^4,2, Koji Fujita⁵, Ayako Abe-Ouchi⁶, Yoshinori Iizuka⁷, Shinichiro Horikawa^7,5, Makoto Igarashi², Keisuke Suzuki⁸, Toshitaka Suzuki⁹, Yoshiyuki Fujii² (1.University of the Ryukyus, 2.National Instititute of Polar Research, 3.LSCE, CEA-CNRS, 4.Kitami Institute of Technology, 5.Nagoya University, 6.The Unviersity of Tokyo, 7.Hokkaido University, 8.Shinshu University, 9.Yamagata University, 10.Fukushima prefectual center for environmental creation)

*Kazuyuki Saito¹, Hirokazu Machiya¹, Go Iwahana², Hiroshi Ohno³, Tokuta Yokohata⁴ (1.Japan Agency for Marine-Earth Science and Technology, 2.International Arctic Research Center, University of Alaska Fairbanks, 3.Kitami Institute of Technology, 4.National Institute for Environmental Studies)

*Kazuyuki Saito¹, Hirokazu Machiya¹, Go Iwahana², Hiroshi Ohno³, Tokuta Yokohata⁴ (1.Japan Agency for Marine-Earth Science and Technology, 2.International Arctic Research Center, University of Alaska Fairbanks, 3.Kitami Institute of Technology, 4.National Institute for Environmental Studies)