*Nozomu Takeuchi¹, Yoichiro Hori¹, Minoru Yoshida², Yoshiyuki Fujii³ (1.Chiba University, 2.Hakusan Co Ltd, 3.National Institute of Polar Research)

*Iizuka Yoshinori¹, Sumito Matoba¹, Ryoto Furukawa¹, Takuto Ando¹, Takeshi Saito¹, Fahmida Parvin¹, Tomomi Amino¹, Mai Shibata¹, Moe Kadota¹, Osamu Seki¹, Shin Sugiyama¹, Ryu Uemura², Koji Fujita³, Asuka Tsuruta⁴, Shohei Hattori⁴, Shuji Fujita⁵, Hideaki Motoyama⁵, Naoko Nagatsuka⁵, Ikumi Oyabu⁵, Satoru Yamaguchi⁶, Satoshi Adachi⁶, Hiroshi Ohno⁷, Akira Hori⁷, Chihiro Miyamoto⁸, Yoshio Takahashi⁸, Chiaki Sasaki⁹, Toshitaka Suzuki⁹, Angel T. Bautista VII^10,11, Hiroyuki Matsuzaki¹⁰, Kazuho Horiuchi¹², Atsushi Miyamoto¹³, Kei Yoshimura¹⁴, Jesper Sjolte¹⁵, Masashi Niwano¹⁶, Naga Oshima¹⁶, Akihiro Hashimoto¹⁶, Tetsuhide Yamasaki¹⁷, Teruo Aoki¹⁸ (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 Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 5.National Institute of Polar Research, 6.The National Research Institute for Earth Science and Disaster Prevention, 7.Department of Civil and Environmental Engineering, Kitami Institute of Technology, Hokkaido, Japan, 8.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 9.Faculty of Science, Yamagata University, 10.Department of Nuclear Engineering and Management, The University of Tokyo, 11.Philippine Nuclear Research Institute - Department of Science and Technology (PNRI-DOST), 12.Graduate School of Science and Technology, Hirosaki University, 13.Institute for the Advancement of Higher Education, Hokkaido University, 14.Institute of Industrial Science, The University of Tokyo, 15.Department of Geology, Quaternary Science, Lund University, 16.Meteorological Research Institute, Japan Meteorological Agency, 17.Avangnaq, 18.Graduate School of Natural Science and Technology, Okayama University)

*Tomomi Amino^1,2, Yoshinori Iizuka², Sumito Matoba² (1.Graduate school of environmental science, Hokkaido University, Japan, 2.Institute of low temperature science, Hokkaido University, Japan)

*Shohei Hattori¹, Asuka Tsuruta¹, Iizuka Yoshinori², Koji Fujita⁴, Ryu Uemura³, Sumito Matoba², Naohiro Yoshida^1,5 (1.Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2.Hokkaido University, Japan, 3.University of Ryukyus, 4.Nagoya University, Japan, 5.Earth-Life Science Institute)

*Fahmida Parvin¹, Osamu Seki², Yoshinori Iizuka², Sumito Matoba², Kimitaka Kawamura³, Kaori Ono², Takayuki Shiraiwa² (1.Graduate School of Environmental Earth Science, Hokkaido University, Kita 10-jo Nishi 5-chome, Kita-ku, Sapporo, 060-0819, Japan, 2.Institute of Low Temperature Science, Hokkaido University, Kita 19-jo Nishi 8-chome, Kita-ku, Sapporo, 060-0810, Japan, 3.Chubu Institute for Advanced Studies, Chubu University, Kasugai 487-8501, Japan)

*Takuto Ando¹, Yoshinori Iizuka², Hiroshi Ohno³, Shin Sugiyama² (1.Arctic Research Center, Hokkaido University, 2.Institute of Low Temperature Science, Hokkaido University, 3.Kitami Institute of Technology)