*Keiko Konya¹, Go Iwahana^3,2, Tetsuo Sueyoshi⁴, Tomoaki Morishita⁵ (1.Japan Agency for Marine-Earth Science and Technology, 2.Universitry of Alaska, Fairbanks, 3.Hokkaido university, 4.Ninational Institute of Polar Research, 5.Forestry and Forest Products Research Institute)

*Go Iwahana¹, Robert Busey¹, Reginald Muskett¹, Hiroshi Ohno², Ji-Woong Yang³, Jinho Ahn³, Simon Zwieback⁴, Franz Meyer⁴, Masao Uchida⁵, Kazuyuki Saito⁶ (1.International Arctic Research Center, University of Alaska Fairbanks, 2.Kitami Institute of Technology, 3.Seoul National University, 4.Geophysical Institute, University of Alaska Fairbanks, 5.National Institute for Environment Studies, 6.Japan Agency for Marine-Earth Science and Technology)

*Kazuki Yanagiya¹, Masato Furuya², Go Iwahana^3,4, Petr Danilov⁵, Alexander Fedorov⁶ (1.Graduate School of Science Hokkiado University, 2. Department of Earth and Planetary Sciences Hokkaido University, 3.International Arctic Research Center, University of Alaska Fairbanks, 4.Arctic Research Center Hokkaido University, 5.Institute of Northern Applied Ecology North-Eastern Federal University in Yakutsk, 6.Yakutsk Permafrost Institute)

*Takahiro Abe¹, Go Iwahana^2,3, Takeo Tadono¹ (1.Earth Observation Research Center, Japan Aerospace Exploration Agency, 2.International Arctic Research Center, University of Alaska Fairbanks, 3.Arctic Research Center, Hokkaido University)

*Go Iwahana¹, Toshio Sone², Masao Uchida³, Tokuta Yokohata³ (1.International Arctic Research Center, University of Alaska Fairbanks, 2.Institute of Low Temperature Science, Hokkaido University, 3.National Institute for Environmental Studies)