*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)

*Yuki Komuro^1,2, Fumio Nakazawa^1,3, Kumiko Goto-Azuma^1,3, Naoko Nagatsuka⁴, Motohiro Hirabayashi¹, Jun Ogata¹, Kaori Fukuda¹, Naoyuki Kurita⁵, Koji Fujita⁵, Ayaka Yonekura⁶, Kyotaro Kitamura¹, Sune Olander Rasmussen⁷, Giulia Sinnl⁷, Trevor James Popp⁷, Dorthe Dahl-Jensen⁷ (1.National Institute of Polar Research, 2.Laboratory for Environmental Research at Mount Fuji, 3.The Graduate University for Advanced Studies, SOKENDAI, 4.Japan Agency for Marine-Earth Science and Technology, 5.Nagoya University, 6.Marine Works Japan, 7.University of Copenhagen)

*Nao Esashi¹, Chiaki Sasaki², Toshitaka Suzuki², Motohiro Hirabayashi³, Yoshinori Iizuka⁴, Sumito Matoba⁴, Koji Fujita¹ (1.Graduate School of Environmental Studies, Nagoya University, 2.Faculty of Science, Yamagata University, 3.National Institute of Polar Research, 4.Institute of Low Temperature Science, Hokkaido University)

*Kazuho Horiuchi¹, Rin Yoshioka², Riko Yagihashi¹, Iizuka Yoshinori³, Sumito Matoba³, Kaoru Kawakami³, Sakiko Ishino⁴, Mahiro Sasage⁵, Mai Matsumoto⁵, Takeyasu Yamagata⁶, Hiroyuki Matsuzaki⁶ (1.Graduate School of Science and Technology, Hirosaki University, 2.Faculty of Science and Technology, Hirosaki University, 3.Institute of Low Temperature Science, Hokkaido University, 4.Institute of Nature and Environmental Technology, Kanazawa University, 5.Graduate School of Environmental Science, Hokkaido University, 6.Micro Analysis Laboratory, Tandem accelerator (MALT), The University of Tokyo)

*Ryu Uemura¹, Reo Hoshiya¹, Arie Staal², Sumito Matoba³, Iizuka Yoshinori³ (1.Nagoya University, 2.Utrecht University, 3.Hokkaido University)