[M-IS01] Global Antarctic Science: connecting the chain of changing huge ice sheets and global environments

Thu. May 28, 2026 10:45 AM - 12:15 PM 201A (International Conference Hall, Makuhari Messe)

Chairperson:Oyabu Ikumi(National Institute of Polar Research, Research Organization of Information and Systems), Kondo Ken(Graduate School of Environmental Studies, Nagoya University), Aoki Shigeru(Hokkaido University), Yamazaki Kaihe(University of Tasmania), Ishiwa Takeshige(National Institute of Polar Research)

Due to global warming, the Antarctic Ice Sheet (AIS) may be beyond a critical threshold, causing the global sea level rise at a faster rate than previously thought. The changes in AIS could trigger a global cascade of global tipping points as ocean circulations. The timescale of these changes is various and has the different characteristics of the response. The complex interactions among the different spatio-temporal phenomena prevent improvement of future predictions. This session will promote interdisciplinary research related to the Southern Ocean and AIS, focusing on the changes in AIS, Southern Ocean circulations and ecosystems from the past to present, which is essential for accurately understanding global environmental changes. Also, the session will comprehensively discuss the latest observational and model simulation results, and proposals for new research observations.

+Add all to schedule

10:45 AM - 11:00 AM

[MIS01-01] Multidisciplinary observation campaign on changes of the Antarctic Climate System during the 67th Japanese Antarctic Research Expedition

*Shigeru Aoki¹, Kenji Kawamura², Daisuke Hirano², Kazuya Ono¹, Ryosuke Makabe², Kazutoshi Sato², Hirokazu Yamagata⁴, Satoko Owari⁵, Fumio Nakazawa², Ikumi Oyabu², Yoshihiko Ohashi², Takeshige Ishiwa², Yoshiaki Suzuki³ (1. Hokkaido University, 2. National Institute of Polar Research, 3. The National Institute of Advanced Industrial Science and Technology, 4. Nippon Institute of Techonology, 5. Tokyo University of Marine Science and Technology)

11:00 AM - 11:25 AM

[MIS01-02] Meltwater-Driven Tipping Cascade of the East Antarctic Ice Sheet: Holocene Rapid Ice-Sheet Thinning and Ice-Shelf Collapse in Dronning Maud Land

★Invited Papers

*Yusuke Suganuma¹ (1. National institute of Polar Research)

11:25 AM - 11:40 AM

[MIS01-03] Shortwave Penetration Drive Subsurface Warming and Melt on Langhovde Glacier, East Antarctica

*Jun Saito¹, Masahiro Minowa¹ (1. Institute of Low Temperature Science, Hokkaido University)

11:40 AM - 11:55 AM

[MIS01-04] Upper-ocean temperature and salinity structure beneath the Antarctic land-fast ice measured by Adélie penguins

*Nobuo Kokubun^1,2, Kazuya Kusahara³, Toshitaka Imaki², Ryosuke Makabe^1,4, Akinori Takahashi^1,2 (1. National Institute of Polar Research, 2. SOKENDAI, 3. JAMSTEC, 4. TUMSAT)

11:55 AM - 12:10 PM

[MIS01-05] Study on the Distribution Structure of Water Masses in the Indian Ocean Sector of the Southern Ocean Using ARGO Float Data

Akamine Juna¹, *Kitade Yujiro¹ (1. Tokyo University of Marine Science and Technology)

Discussion (12:10 PM - 12:15 PM)

Session information