Mai Matsumoto^1,2, Kaoru Kawakami³, Takuto Ando⁴, Mai Shibata^1,2, Sumito Matoba², Shuji Fujita^5,6, Teruo Aoki⁷, Satoru Adachi⁸, Akihiro Hachikubo⁹, Koji Fujita¹⁰, Akira Hori¹¹, Satoru Yamaguchi¹², Tomonori Tanikawa¹³ and Yoshinori Iizuka², (1)Hokkaido University, Graduate School of Environmental Science, Sapporo, Japan, (2)Hokkaido University, Institute of Low Temperature Science, Sapporo, Japan, (3)Nagoya University, Graduate school of Environmental studies, Nagoya, Japan, (4)Akita University, Graduate School of International Resource Sciences, Akita, Japan, (5)National Institute of Polar Research, Tokyo, Japan, (6)Graduate Institute for Advanced Studies, SOKENDAI, Department of Advanced Studies, Tokyo, Japan, (7)Meteorological Research Institute, Tsukuba, Japan, (8)National Research Institute for Earth Science and Disaster Resilience, Snow and Ice Research Center, Shinjo Cryospheric Environment Laboratory, Shinjo, Japan, (9)Kitami institute of technology, Kitami, Japan, (10)Nagoya University, Graduate School of Environmental Studies, Nagoya, Japan, (11)Kitami Institute of Technology, Kitami, Japan, (12)National Research Institute for Earth Science and Disaster Resilience, Snow and Ice Research Center, Nagaoka, Japan, (13)Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan