[M-IS03] The Southern Ocean and the Antarctic Ice Sheet dynamics in past, present and future

Wed. May 25, 2022 3:30 PM - 5:00 PM 104 (International Conference Hall, Makuhari Messe)

convener:Kazuya Kusahara(Japan Agency for Marine-Earth Science and Technology), convener:Akira Oka(Atmosphere and Ocean Research Institute, The University of Tokyo), Yoshifumi Nogi(National Institute of Polar Research), convener:Shun Tsutaki(National Institute of Polar Research), Chairperson:Kazuya Kusahara(Japan Agency for Marine-Earth Science and Technology), Akira Oka(Atmosphere and Ocean Research Institute, The University of Tokyo), Yoshifumi Nogi(National Institute of Polar Research), Shun Tsutaki(National Institute of Polar Research)

The Southern Ocean and Antarctic ice sheet, which are the giant reservoirs of heat, water, and materials, have a potential to play central roles in long-term global climate change. This system is composed of the following sub-systems; ice shelf which is a place of the interaction of ice sheet and ocean, flowing iceberg, seasonal sea ice zone, Antarctic bottom water which drives the thermohaline circulation, active biological production and Antarctic Circumpolar Current. These sub-systems are interacted with each other and have significant impact on changes in the global environmental system. This session aim to summarize recent observational and simulation studies from various fields relating to the past and present changes in the Antarctic Ice sheet and Southern Ocean, which are essential elements for unraveling the changes in the global climate system. Further, future science plans for understanding of the environmental changes of the Antarctic Cryosphere is also discussed.

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3:30 PM - 3:45 PM

[MIS03-01] Review of KAKENHI project "Giant reservoirs of heat/water/material : Global environmental changes driven by the Southern Ocean and the Antarctic Ice Sheet"

★Invited Papers

*Kenji Kawamura^1,2,3, on behalf of KAKENHI project "Giant reservoirs of heat/water/material : Global environmental changes driven by the Southern Ocean and the Antarctic Ice Sheet" - (1.National Institute of Polar Research, Research Organization of Information and Systems, 2.Graduate University for Advanced Studies, SOKENDAI, 3.Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

3:45 PM - 4:00 PM

[MIS03-02] Warm surface waters increase Antarctic ice shelf melt and delay dense water formation

*Shigeru Aoki¹, Tomoki Takahashi¹, Kaihe Yamazaki¹, Daisuke Hirano², Kazuya Ono¹, Kazuya Kusahara³, Takeshi Tamura², Guy D. Williams⁴ (1.Hokkaido University, 2.National Institute of Polar Research, 3.JAMSTEC, 4.University of Tasmania)

4:00 PM - 4:15 PM

[MIS03-03] Upslope flow of mCDW across the continental shelf using a high-resolution model in the Cape Darnley Bottom Water formation region.

*Vigan Mensah¹, Yoshihiro Nakayama¹, Masakazu Fujii², Kay I. Ohshima¹ (1.Institute of Low Temperature Science, 2.National Institute of Polar Research)

4:15 PM - 4:30 PM

[MIS03-04] Regional East Antarctica simulation with optimized ocean, sea ice, and thermodynamic ice shelf model parameters

*Shuntaro Hyogo¹, Yoshihiro Nakayama², Masakazu Fujii³, Takeshi Tamura³, Ayako Abe-Ouchi⁴, Shigeru Aoki² (1.Graduate School of Environmental Science, Hokkaido University, 2.Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan., 3.National Institute of Polar Research and SOKENDAI, 4.Atmosphere and Ocean Research Institute, The University of Tokyo)

4:30 PM - 4:45 PM

[MIS03-05] Reconstruction of sea surface temperatures in the Scotia Sea during the past warm periods based on GDGT paleothermometry

*Ishii Hana¹, Osamu Seki², Masanobu Yamamoto³, IODP Expedition 382 Scientists⁴ (1.Graduate School of Environmental Science, Hokkaido University, 2.Institute of Low Temperature Science, Hokkaido University, 3.Faculty of Environmental Earth Science, 4.IODP Expedition 382 )

4:45 PM - 5:00 PM

[MIS03-06] Simulating the evolution of the Antarctic ice sheet until the year 2300 with a climate-index method

*Ralf Greve^1,2, Christopher Chambers¹, Takashi Obase³, Fuyuki SAITO⁴, Wing-Le Chan³, Ayako Abe-Ouchi³ (1.Institute of Low Temperature Science, Hokkaido University, 2.Arctic Research Center, Hokkaido University, 3.Atmosphere and Ocean Research Institute, The University of Tokyo, 4.Japan Agency for Marine-Earth Science and Technology)

Session information