*Shigeki Murakami¹, Shohei Hattori², Ryu Uemura³ (1.Tohkamachi Experimental Station, Forestry and Forest Products Research Institute, 2.School of Materials and Chemical Technology, Tokyo Institute of Technology, 3.Faculty of Science, Department of Chemistry, Biology, and Marine Science, University of the Ryukyus)

*Ryu Uemura¹, Masashi Nakamoto¹, Satoru Mishima¹, Masakazu Gibo¹, Ryuji Asami¹, Chen Jin-Ping², Chung-Che Wu², Yu-Wei Chang², Chuan-Chou Shen² (1.University of the Ryukyus, 2.National Taiwan University)

*Yuina Uechi¹, Ryu Uemura¹ (1.University of the Ryukyus)

*Yuina Uechi¹, Ryu Uemura¹ (1.University of the Ryukyus)

*Shohei Hattori¹, Asuka Tsuruta¹, Iizuka Yoshinori², Ryu Uemura³, Sumito Matoba², Naohiro Yoshida¹ (1.Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2.Institute of Low Temperature Science, Hokkaido University, 3.University of Ryukyus)

*Kazushi Noro¹, Shohei Hattori², Ryu Uemura³, Kotaro FUKUI⁴, Motohiro Hirabayashi⁵, Kenji Kawamura⁵, Hideaki Motoyama⁵, Naohiro Yoshida², Norimichi Takenaka¹ (1.Graduate School of Engineering, Osaka Prefecture University, 2.Tokyo Institute of Technology, 3.University of Ryukyu, 4.Tateyama Caldera Sabo Museum, 5.National Institute of Polar Research)

Ryoto Furukawa¹, *Ryu Uemura², Koji Fujita³, Jesper Sjolte⁴, Kei Yoshimura⁵, Sumito Matoba¹, Iizuka Yoshinori¹ (1.Institite of Low Temperature Science, Hokkaido University, 2.Department of Chemistry, Biology, and Marine Science, Faculty of Science, University of the Ryukyus, 3.Graduate School of Environmental Studies, Nagoya University, 4.Department of Geology, Quaternary Science, Lund University, 5.Institute of Industrial Science, the University of Tokyo)

*Iizuka Yoshinori¹, Koji Fujita², Shohei Hattori³, Ryu Uemura⁴, Osamu Seki¹, Chihiro Miyamoto⁵, Toshitaka Suzuki⁶, Naohiro Yoshida^3,7, Hideaki Motoyama⁸, Sumito Matoba¹ (1.Institite of Low Temperature Science, Hokkaido University, 2.Graduate School of Environmental Studies, Nagoya University, 3.Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4.Department of Chemistry, Biology, and Marine Science, Faculty of Science, University of the Ryukyus, 5.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 6.Department of Earth and Environmental Sciences, Faculty of Science, Yamagata University, 7.Earth-Life Science Institute, Tokyo Institute of Technology, 8.National Institute of Polar Research)

*Shohei Hattori¹, Ryu Uemura², Kazushi Noro³, Kotaro Fukui⁴, Motohiro Hirabayashi⁵, Norimichi Takenaka³, Joel Savarino⁶, Kenji Kawamura⁵, Hideaki Motoyama⁵, Naohiro Yoshida¹ (1.Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Japan, 2.University of the Ryukyus, Japan, 3.Osaka Prefectural University, Japan, 4.Tateyama Caldera Sabo Museum, Japan, 5.National Institute of Polar Research, Japan, 6.Univ. Grenoble Alpes, CNRS, IRD, IGE, F-38000 Grenoble, France)

Ryoto Furukawa¹, *Ryu Uemura², Koji Fujita³, Jesper Sjolte⁴, Kei Yoshimura⁵, Sumito Matoba¹, Iizuka Yoshinori¹ (1.Institite of Low Temperature Science, Hokkaido University, 2.Department of Chemistry, Biology, and Marine Science, Faculty of Science, University of the Ryukyus, 3.Graduate School of Environmental Studies, Nagoya University, 4.Department of Geology, Quaternary Science, Lund University, 5.Institute of Industrial Science, the University of Tokyo)

*Iizuka Yoshinori¹, Koji Fujita², Shohei Hattori³, Ryu Uemura⁴, Osamu Seki¹, Chihiro Miyamoto⁵, Toshitaka Suzuki⁶, Naohiro Yoshida^3,7, Hideaki Motoyama⁸, Sumito Matoba¹ (1.Institite of Low Temperature Science, Hokkaido University, 2.Graduate School of Environmental Studies, Nagoya University, 3.Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4.Department of Chemistry, Biology, and Marine Science, Faculty of Science, University of the Ryukyus, 5.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 6.Department of Earth and Environmental Sciences, Faculty of Science, Yamagata University, 7.Earth-Life Science Institute, Tokyo Institute of Technology, 8.National Institute of Polar Research)

*Shohei Hattori¹, Ryu Uemura², Kazushi Noro³, Kotaro Fukui⁴, Motohiro Hirabayashi⁵, Norimichi Takenaka³, Joel Savarino⁶, Kenji Kawamura⁵, Hideaki Motoyama⁵, Naohiro Yoshida¹ (1.Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Japan, 2.University of the Ryukyus, Japan, 3.Osaka Prefectural University, Japan, 4.Tateyama Caldera Sabo Museum, Japan, 5.National Institute of Polar Research, Japan, 6.Univ. Grenoble Alpes, CNRS, IRD, IGE, F-38000 Grenoble, France)

*Hotaek Park¹, Ryu Uemura², Kimpei Ichiyanagi³ (1.Japan Agency for Marine-Earth Science and Technology, 2.Ryukyu University, 3.Kumamoto University)

*Hotaek Park¹, Ryu Uemura², Kimpei Ichiyanagi³ (1.Japan Agency for Marine-Earth Science and Technology, 2.Ryukyu University, 3.Kumamoto University)

*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)

*Kenji Kawamura^1,2,3, Shin Sugiyama⁴, Ryu Uemura⁶, Hideaki Motoyama^1,2, Takanobu Sawagaki⁵, Iizuka Yoshinori⁴, Kazuho Horiuchi⁷, Shuji Aoki⁸, Kumiko Goto-Azuma^1,2, Shuji Fujita^1,2, Osamu Seki⁴, Motohiro Hirabayashi¹, Ikumi Oyabu¹ (1.National Institute of Polar Research, Research Organization of Information and Systems, 2.SOKENDAI, 3.JAMSTEC, 4.Hokkaido University, 5.Hosei University, 6.University of Ryukyus, 7.Hirosaki University, 8.Tohoku University)

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

*Ryu Uemura¹, Yudai Kina¹, Kanako Omine² (1.Department of Chemistry, Bioogy, and Marine Science, University of the Ryukyus, 2.University of the Ryukyus)

*Kanako Omine¹, Ryu Uemura¹, Kosuke Masaka¹, Ryuji Asami¹, Chuan-Chou Shen², Mahjoor Ahmad Lone² (1.University of the Ryukyus, 2.Dept. of Geosci., National Taiwan University)

*Ryuji Asami¹, Yuji Akamine¹, Hidetaka Genka¹, Ryotaro Matsumoto¹, Ryu Uemura¹, Yasufumi Iryu², Chuan-Chou Shen³ (1.Faculty of Science, University of the Ryukyus, 2.Graduate School of Science, Tohoku University, 3.HISPEC, National Taiwan University)

*Ryu Uemura¹, Yudai Kina¹, Kanako Omine² (1.Department of Chemistry, Bioogy, and Marine Science, University of the Ryukyus, 2.University of the Ryukyus)

*Kanako Omine¹, Ryu Uemura¹, Kosuke Masaka¹, Ryuji Asami¹, Chuan-Chou Shen², Mahjoor Ahmad Lone² (1.University of the Ryukyus, 2.Dept. of Geosci., National Taiwan University)

*Ryuji Asami¹, Yuji Akamine¹, Hidetaka Genka¹, Ryotaro Matsumoto¹, Ryu Uemura¹, Yasufumi Iryu², Chuan-Chou Shen³ (1.Faculty of Science, University of the Ryukyus, 2.Graduate School of Science, Tohoku University, 3.HISPEC, National Taiwan University)