[A-CG57] Science in the Arctic Region

convener:Masashi Niwano(Meteorological Research Institute), Shunsuke Tei(Arctic Research Center, Hokkaido University), Tetsu Nakamura(Faculty of Environmental Earth Science, Hokkaido University), Jun Ono(Atmosphere and Ocean Research Institude, The University of Tokyo)

The Arctic and circumpolar region is the key area for the study of global change because the anthropogenic impact is projected to be the largest in this area due to the complicated feedback processes of the nature. A number of international and interdisciplinary research projects have been conducted for the studies on the land-atmosphere-ocean system. In order to understand the feedback processes occurring in the Arctic and to project the global warming in the future, we need to establish the intense observational network and to exchange the knowledge and information by combining the different scientific communities under the common interest of the Arctic. The objectives of this session are 1) to exchange our knowledge on the observational facts and integrated modelling and 2) to deepen our understanding on wide range of natural sciences related to the Arctic and the circumpolar region. Studies on humanities, social sciences, and interdisciplinary fields are also welcomed.

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[ACG57-07] Surface displacement after a wildfire in a permafrost region of Central Yaktuia detected by L-band SAR Interferometry

*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)

[ACG57-08] Effect of crustose lichen (Ochrolecia frigida) on soil CO₂efflux in a sphagnum moss community over western Alaska tundra

*Yongwon Kim¹ (1.University of Alaska Fairbanks)

[ACG57-09] Long term analysis of the Bare Ice and Dark Ice on the Greenland Ice Sheet using multi satellites

★Invited Papers

*Rigen Shimada¹, Masahiro Hori¹, Nozomu Takeuchi², Teruo Aoki^3,4 (1.Japan Aerospace Exploration Agency, 2.Chiba University, 3.National Institute of Polar Research, 4.Meteorological Research Institute)

[ACG57-10] Arctic sea surface temperature monitoring with SGLI onboard GCOM-C

*Yukio Kurihara¹, Kazunori Ogata¹, Masahiro Hori¹, Hiroshi Murakami¹, Misako Kachi¹ (1.Japan Aerospace Exploration Agency / Earth Observation Research Center)

[ACG57-11] Interannual trend of satellite-derived snow grain size over the Greenland Ice Sheet

*Teruo Aoki^1,2, Rigen Shimada³, Masahiro Hori³, Masashi Niwano², Tomonori Tanikawa², Sumito Matoba⁴, Iizuka Yoshinori⁴, Koji Fujita⁵ (1.Arctic Environment Research Center, National Institute of Polar Research, 2.Meteorological Research Institute, Japan Meteorological Agency, 3.Earth Observation Research Center, Japan Aerospace Exploration Agency, 4.Institute of Low temperature Science, Hokkaido University, 5.Graduate School of Environmental Studies, Nagoya University)

[ACG57-12] Estimation of Greenland surface mass balance using positive degree-days method and energy balance model

*Ryouta O'ishi¹, Fuyuki SAITO², Takashi Obase¹, Ayako Abe-Ouchi^1,2,3 (1.Atmosphere and Ocean Research Institute, the Universitoy of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology, 3.National Institute of Polar Research)