[A-CG52] Science in the Arctic Region

Thu. May 29, 2025 9:00 AM - 10:30 AM Exhibition Hall Special Setting (3) (Exhibition Hall 7&8, Makuhari Messe)

convener:Tatsuya Kawakami(Hokkaido University), Masatake Hori(University of Tokyo, Atmosphere Ocean Research Institute), Kazuki Yanagiya(Japan Aerospace Exploration Agency), Yota Sato(Japan Agency for Marine-Earth Science and Technology), Chairperson:Tatsuya Kawakami(Hokkaido University), Rigen Shimada(Japan Aerospace Exploration Agency)

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 nature. Several international and interdisciplinary research projects have been conducted for the studies on the land-atmosphere-ocean-cryosphere systems. To understand the feedback processes occurring in the Arctic and to project global warming in the future, we need to establish an intense observational network and exchange 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 observational facts and integrated modelling and 2) to deepen our understanding of the wide range of natural sciences related to the Arctic and the circumpolar region. Studies in humanities, social sciences, and interdisciplinary fields are also welcomed.

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9:00 AM - 9:15 AM

[ACG52-01] Decadal Variability in Sea Ice Meltwater Amount in the Beaufort Gyre and Its Association with Multi-Year Ice Loss

*YenChen CHEN¹, Vigan Mensah², Kay I. Ohshima² (1.Graduate School of Environmental Science, Hokkaido University, 2.Institute of Low Temperature Science, Hokkaido University)

9:15 AM - 9:30 AM

[ACG52-02] A new look at the Baffin Bay and Labrador Shelf freshwater content: estimation of a weekly climatology and interannual anomalies

*Vigan Mensah¹, Igor Yashayaev², Koji Fujita³, Stephen E. L. Howell⁴, Miho Ikeda⁵, Kay I. Ohshima^1,6 (1.Institute of Low Temperature Science, Hokkaido University, 2.Bedford Institute of Oceanography, Dartmouth, NS, Canada, 3.Graduate school of environmental studies, Nagoya University, 4.Climate Research Division, Environment and Climate Change Canada, Toronto, Canada, 5.Faculty of Science, Hokkaido University, 6.Arctic Research Center, Hokkaido University, Sapporo)

9:30 AM - 9:45 AM

[ACG52-03] Transition from pack ice zone to marginal ice zone in the Arctic Ocean and its impact on the changes in the atmosphere-sea ice-ocean system

*Ying Chen¹ (1.Polar Research Institute of China)

9:45 AM - 10:00 AM

[ACG52-04] A Numerical Study associated with Soya Warm Current Impact to Sea-Ice Distribution in Soth Part of Okhotsk Sea

*Ryu Saiki¹, Humio Mitsudera², Takuya Nakanowatari¹, Hiroshi Kuroda¹, Tomoshige Inoue³, Hiroaki Ueda³, Katsushi Iwamoto⁴ (1.Japan Fisheries Research and Education Agency, Kushiro, 2.Institute of Low Temperature Science, Hokkaido University, 3.Faculty of Life and Environmental Sciences, University of Tsukuba, 4.Monbetsu City Hall)

10:00 AM - 10:15 AM

[ACG52-05] Validation of alkalinity as a freshwater tracer in the Pacific Arctic Ocean

*Komura Tsukushi¹, Michiyo Yamamoto-Kawai¹, Kaede Goto¹, Mariko Hatta², Akihiko Murata² (1.Tokyo University of Marine Science and Technology, 2.Japan Agency for Marine-Earth Science and Technology)

10:15 AM - 10:30 AM

[ACG52-06] Effect of sediment loads on the biogeochemical properties of sea ice along the coast of Alaska, Arctic Ocean

*Ryota Akino¹, Daiki Nomura^1,2,3, Masaki Yoshimura¹, Keigo D Takahashi¹, Amane Fujiwara⁴, Mariko Hatta⁵, Hisatomo Waga⁵, Laura Whitmore⁵ (1.Faculty of Fisheries Sciences, Hokkaido University, 2.Field Science Center for Northern Biosphere, Hokkaido University, 3.Arctic Research Center, Hokkaido University, 4.Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 5.University of Alaska Fairbanks)

Session information