[M-IS15] Global climate change driven by the Southern Ocean and the Antarctic Ice Sheet

convener:Osamu Seki(Institute of Low Temperature Science, Hokkaido University), Akira Oka(Atmosphere and Ocean Research Institute, The University of Tokyo), Yoshifumi Nogi(National Institute of Polar Research), Robin Elizabeth Bell(Lamont Doherty Earth Observatory)

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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[MIS15-01] Shallow Sea Trial of the Under Ice AUV “MONACA”

*Hirokazu Yamagata¹, Toshihiro Maki¹, Hiroshi Yoshida², Yoshifumi Nogi³ (1.Institute of Industrial Science, The University of Tokyo, 2.Japan Marine Science and Technology Cente, 3.National Institute of Polar Research)

[MIS15-02] Modeling warm water intrusion into Lützow-Holm Bay, East Antarctica

*Kazuya Kusahara¹, Daisuke Hirano², Masakazu Fujii³, Alexander D. Fraser⁴, Takeshi Tamura³ (1.Japan Agency for Marine-Earth Science and Technology, 2.Hokkaido University, 3.National Institute of Polar Research, 4.University of Tasmania)

[MIS15-03] Estimation of the Antarctic ice sheet surface mass balance using the polar regional climate model NHM-SMAP

*Masashi Niwano¹, Akihiro Hashimoto¹, Shun Tsutaki², Hideaki Motoyama², Naohiko Hirasawa², Ayako Abe-Ouchi³ (1.Meteorological Research Institute, 2.National Institute of Polar Research, 3.Atmosphere Ocean Research Institute, University of Tokyo)

[MIS15-04] Accurate chronology and climatic reconstruction around MIS 11 from the Dome Fuji ice core

*Kenji Kawamura^1,2,3, Ikumi Oyabu¹, Shuji Aoki⁴, Takakiyo Nakazawa⁴, Ayako Abe-Ouchi⁵, Fuyuki SAITO³ (1.National Institute of Polar Research, Research Organization of Information and Systems, 2.Graduate School for Advanced Studies, SOKENDAI, 3.Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 4.Tohoku University, 5.University of Tokyo)

[MIS15-05] Deglaciation history of the East Antarctic Ice sheet revealed by exposure ages and marine-lake sedimentary records in Lutzow-Holm Bay

*Yusuke Suganuma^1,2, Moto Kawamata², Yuki Haneda¹, Takeshige Ishiwa¹, Kota Katsuki⁵, Takuya Itaki³, Osamu Seki⁴, Jun'ichi Okuno^1,2 (1.National institute of Polar Research, 2.The Graduate University for Advanced Studies (SOKENDAI), 3.Geological Survey of Japan, AIST, 4.Hokkaido University, 5.Shimane University)

[MIS15-06] Cross-check of dust-magnetic correlation and oxygen isotope stratigraphy in the Southern Ocean

*Hiroki Matsui¹, Minoru Ikehara¹, Yusuke Suganuma^2,3, Osamu Seki⁴, Jun'ichi Okuno^2,3, Ikumi Oyabu², Kenji Kawamura^2,3 (1.Center for Advanced Marine Core Research, Kochi University, 2.National Institute of Polar Research, 3.Department of Polar Science, School of Multidisciplinary Sciences, The Graduate University for Advanced Studies (SOKENDAI), 4.Institute of Low Temperature Science, Hokkaido University)