*Chihiro Miyamoto¹, Yoshinori Iizuka², Kohei Sakata³, Yoshio Takahashi¹ (1.Department of Earth and Planetary Science, Department of Science, The University of Tokyo, 2.Institute of Low Temperature Science, Hokkaido University, 3.Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University)

*Akane Tsushima¹, Vasileios Gkinis², Kumiko Goto-Azuma³, Sumito Matoba⁴, Hideaki Motoyama³ (1.Research Institute for Humanity and Nature, 2.Niels Bohr Institute, University of Copenhagen, 3.National Institute of Polar Research, 4.Institute of Low Temperature Science, Hokkaido University)

*YOICHIRO HORI¹, Nozomu Takeuchi¹, Minoru Yoshida², Yoshiyuki Hujii³ (1.Chiba University Graduate school of Science, 2.Hakusan Corporation, 3.National Institute of Polar Research)

*Ikumi Oyabu¹, Kenji Kawamura^1,2,3, Kumiko Goto-Azuma^1,2, Kyotaro Kitamura¹, Takakiyo Nakazawa⁴, Shuji Aoki⁴, Edward Brook⁵, Thomas Blunier⁶ (1.National Institute of Polar Research, Research Organization of Information and Systems, 2.SOKENDAI (The Graduate University of Advanced Studies), 3.Japan Agency for Marine Science and Technology, 4.Tohoku University, 5.Oregon State University, 6.University of Copenhagen)

*Shuji Fujita^1,2, Kotaro Fukui³, Hideaki Motoyama^1,2, Fumio Nakazawa^1,2 (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), 3.Tateyama Caldera Sabo Museum)

*Miho Arai¹, Kenji Kawamura^2,3,4, Kyotaro Kitamura², Kumiko Goto-Azuma^2,3, Jun Ogata², Remi Dallmayr², Fumio Nakazawa^2,3, Motohiro Hirabayashi², Takakiyo Nakazawa⁵, Shuji Aoki⁵, Toshitaka Suzuki¹ (1.Graduate School of Science and Engineering, Yamagata University, 2.National Institute of Porlar Research, 3.SOKENDAI, 4.JAMSTEC, 5.Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University)

*Nozomu Takeuchi¹, Koji Fujita², Kenji Kawamura³, Akane Tsushima⁴, Kenshiro Miyauchi¹, YOICHIRO HORI¹, Vladimir Aizen⁵, Azamat Osmonov⁶ (1.Chiba University, 2.Nagoya University, 3.National Institute of Polar Research, 4.Research Institute for Humanity and Nature, 5.University of Idaho, 6.Central Asian Institute of Applied Geo-Science)

Fumio Nakazawa^1,2, *Naoko Nagatsuka¹, Kumiko Goto-Azuma^1,2, Dorthe Dahl-Jensen³, Jørgen Peder Steffensen³ (1.National Institute of Polar Research, 2.SOKENDAI (The Graduate University of Advanced Studies), 3.Niels Bohr Institute, University of Copenhagen)

*Ryu Uemura¹, Dome Fuji ice core Research Group² (1.University of the Ryukyus, 2.National Instititute of Polar Research)

*Shuji Fujita^1,2, Frédéric Parrenin Parrenin^3,4, Ayako Abe-Ouchi^5,6, Kenji Kawamura^1,2, V. MASSON-DELMOTTE⁷, Hideaki Motoyama^1,2, Fuyuki Saito SAITO⁶, M. Fujita SEVERI⁸, B. STENNI⁹, Ryu Uemura¹⁰, E. W. Wolff¹¹ (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), 3.CNRS, LGGE, F-38041 Grenoble, France, 4.University Grenoble Alpes, LGGE, F-38041 Grenoble, France, 5.Atmosphere and Ocean Research Institute (AORI), University of Tokyo, Chiba, Japan, 6.Japan Agency for Marine–Earth Science and Technology, Yokohama, Japan, 7.Laboratoire des Sciences du Climat et de l’Environnement, Institut Pierre Simon Laplace, UMR CEA-CNRS-UVSQ-UPS 8212, Gif-sur-Yvette, France, 8.Department of Chemistry, University of Florence, Florence, Italy, 9.Department of Environmental Sciences, Informatics and Statistics, Ca’ Foscari University Venice, 30123 Venice, Italy, 10.Department Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, Okinawa, Japan, 11.Department of Earth Sciences, University of Cambridge, UK)