*Iizuka Yoshinori¹, Kaoru Kawakami², Mahiro Sasage², Mai Matsumoto², Akira Hori³, Takeshi Saito¹, Keita Takasugi³, Takumi Hatakeyama⁴, AKIHISA WATARI², Nao Esashi⁵, Miu Otsuka², Atsushi Miyamoto⁶, Ryu Uemura⁵, Sakiko Ishino⁷, Shuji Fujita⁸, Teruo Aoki⁸, Koji Fujita⁵, Shohei Hattori⁹, Kazuho Horiuchi⁴, Motohiro Hirabayashi⁸, Kenji Kawamura⁸, Sumito Matoba¹ (1.Institite of Low Temperature Science, Hokkaido University, 2.Graduate School of Environmental Science, Hokkaido University, 3.Department of Earth and Environmental Engineering, Kitami Institute of Technology, 4.Graduate School of Science and Technology, Hirosaki University, 5.Graduate School of Environmental Studies, Nagoya University, 6.Hokkaido University, 7.Institute of Nature and Environmental Technology, Kanazawa University, 8.National Institute of Polar Research, 9.International Center for Isotope Effects Research, Nanjing University)

*Kaoru Kawakami^1,2, Yoshinori Iizuka², Akira Hori³, Sakiko Ishino⁴, Mahiro Sasage^1,2, Mai Matsumoto^1,2, Keita Takasugi³, Takeshi Saito², Sumito Matoba², Shohei Hattori⁵ (1.Graduate school of Environmental Science, Hokkaido University, 2.Institute of Low Temperature Science, Hokkaido University, 3.Kitami Institute of Technology, 4.Institute of Nature and Environmental Technology, Kanazawa University, 5.International Center for Isotope Effects Research, Nanjing University)

*Mahiro Sasage^1,2, Iizuka Yoshinori², Shuji Fujita^3,4, Kaoru Kawakami^1,2, Takeshi Saito², Mai Matsumoto^1,2, Keita Takasugi⁵, Sumito Matoba², Akira Hori⁵, Sakiko Ishino⁶, Shohei Hattori⁷ (1.Graduate School of Environmental Science, Hokkaido University, 2.Institute of Low Temperature Science, Hokkaido University, 3.National Institute of Polar Research, Research Organization of Information and Systems (ROIS), 4.Department of Polar Science, The Graduate University for Advanced Studies (SOKENDAI), 5.Kitami institute of Technology, 6.Institute of Nature and Environmental Technology, Kanazawa University, 7.Nanjing University)

*Mai Matsumoto^1,2, Iizuka Yoshinori¹, Saito Takeshi¹, Koji Fujita³, Teruo Aoki⁴ (1.Institute of Low Temperature Science, Hokkaido University, 2.Graduate School of Environmental Science, Hokkaido University, 3.Graduate School of Environmental Studies, Nagoya University, 4.National Institute of Polar Research)