*Keiichiro Hara¹, Sumito Matoba², Motohiro Hirabayashi³, Tetsuhide Yamasaki⁴ (1.Fukuoka University, 2.Hokkaido Univ., 3.NIPR, 4.Avangnaq)

*Fahmida Parvin¹, Osamu Seki¹, Yoshinori Iizuka¹, Sumito Matoba¹, Ken Sawada² (1.Intitute of Low Temperature Science, Hokkaido University, 2.Faculty of Science, Hokkaido University)

*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)

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)

*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)

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)

*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 Hirozawa¹, Teruo Aoki^2,3, Masashi Niwano³, Sumito Matoba⁴, Yuji Kodama⁵ (1.Okayama University Faculty of Science, 2.Okayama University, Graduate School of Natural Science and Technology, 3.Meteorological Research Institute, 4.Institute of Low Temperature Science, Hokkaido University, 5.National Institute of Polar Research)

*Shin Sugiyama¹, Shun Tsutaki², Daiki Sakakibara³, Evgeny A. Podolskiy³, Masahiro Minowa¹, Yoshihiko Ohashi¹, Jun Saito¹, Takanobu Sawagaki⁷, Sumito Matoba¹, Naoya Kanna³, Hiroyuki Enomoto⁶, Martin Funk⁴, Riccardo Genco⁵, Yvo Weidmann⁴, Guillaume Jouvet⁴, Julien Seguinot⁴ (1.Institute of Low Temperature Science, Hokkaido University, 2.Earth Observation Research Center, Japan Aerospace Exploration Agency, 3.Arctic Environment Research Center, National Institute of Polar Research, 4.Laboratory for Hydraulics, Hydrology and Glaciology, ETH-Zurich, Switzerland, 5.Department of Earth Science, University of Florence, 6.National Institute of Polar Research, 7.Hosei University)

*Shin Sugiyama¹, Shun Tsutaki², Daiki Sakakibara³, Evgeny A. Podolskiy³, Masahiro Minowa¹, Yoshihiko Ohashi¹, Jun Saito¹, Takanobu Sawagaki⁷, Sumito Matoba¹, Naoya Kanna³, Hiroyuki Enomoto⁶, Martin Funk⁴, Riccardo Genco⁵, Yvo Weidmann⁴, Guillaume Jouvet⁴, Julien Seguinot⁴ (1.Institute of Low Temperature Science, Hokkaido University, 2.Earth Observation Research Center, Japan Aerospace Exploration Agency, 3.Arctic Environment Research Center, National Institute of Polar Research, 4.Laboratory for Hydraulics, Hydrology and Glaciology, ETH-Zurich, Switzerland, 5.Department of Earth Science, University of Florence, 6.National Institute of Polar Research, 7.Hosei University)