*Ryo Inoue¹, Shuji Fujita^1,2, Motohiro Hirabayashi¹, Mai Matsumoto³, Hiroshi Ono⁴, Hayato Inoue⁵, Tomotaka Saruya¹, Ikumi Oyabu^1,2, Kyotaro Kitamura¹, Mai Suzuki², Fumio Nakazawa^1,2, Shun Tsutaki^1,2, Kenji Kawamura^1,2,6 (1.National Institute of Polar Research, Research Organization of Information and Systems, 2.The Graduate University for Advanced Studies, 3.Graduate School of Environmental Science, Hokkaido University, 4.Kitami Institute of Technology, 5.Graduate School of Science and Technology, Hirosaki University, 6.Japan Agency for Marine Science and Technology)

*Ikumi Oyabu¹, Kenji Kawamura^1,2, Christo Buizert³, Frédéric Parrenin⁴, Ryu Uemura⁵, Motohiro Hirabayashi¹, Kumiko Goto-Azuma¹, Jun Ogata¹, Kyotaro Kitamura¹, Kaori Fukuda¹, Shuji Fujita^1,2 (1.National Institute of Polar Research, Research Organization of Information and Systems, 2.SOKENDAI, 3.Oregon State University, 4.Institut des Géosciences de l’Environnement, 5.Nagoya University)

*Kumakura Yuki¹, Kazuho Horiuchi¹, Chin Tze Shin², Ikumi Oyabu³, Kenji Kawamura³, Takeyasu Yamagata⁴, Hiroyuki Matsuzaki⁴ (1.Graduate School of Science and Technology, Hirosaki University, 2.Faculty of Science and Technology, Hirosaki University, 3.National Institute of Polar Research, 4.Micro Analysis Laboratory, Tandem accelerator (MALT), The University of Tokyo)

*Kumiko Goto-Azuma¹, Kaori Fukuda¹, Jun Ogata¹, Nobuhiro Moteki², Tatsuhiro Mori³, Sho Ohata⁴, Yutaka Kondo¹, Makoto Koike⁵, Motohiro Hirabayashi¹, Kyotaro Kitamura¹, Ayaka Yonekura^6,1,7, Shuji Fujita^1,6, Fumio Nakazawa^1,6, Yoshimi Ogawa-Tsukagawa¹, Ikumi Oyabu^1,6, Kenji Kawamura^1,6 (1.National Institute of Polar Research, 2.Tokyo Metropolitan University, 3.Keio University, 4.Nagoya University, 5.The University of Tokyo, 6.SOKENDAI, 7.Marine Works Japan Ltd.)

*Mai Suzuki¹, Ikumi Oyabu^2,1, Kenji Kawamura^2,1, Yoshinori Iizuka³ (1.The Graduate University for Advanced Studies, 2.National Institute of Polar Research, 3.Institute of Low Temperature Science)