[M-IS14] Global climate change driven by the Southern Ocean and the Antarctic Ice Sheet

Mon. May 27, 2019 10:45 AM - 12:15 PM Convention Hall B (2F)

convener:Osamu Seki(Institute of Low Temperature Science, Hokkaido University), Akira Oka(Atmosphere and Ocean Research Institute, The University of Tokyo), Ryu Uemura(University of the Ryukyus), Ryosuke Makabe(National Institute of Polar Research), Chairperson:Sam Sherriff-Tadano(University of Tokyo)

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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10:45 AM - 11:00 AM

[MIS14-06] High resolution ocean temperatures reconstructions over the last glacial-interglacial in the Kerguelen region, Southern Ocean.

*Matthieu Civel^1,2, Xavier Crosta³, Giuseppe Cortese⁴, Elisabeth Michel⁵, Alain Mazaud⁵, Samuel Jaccard⁶, Lena Thöle⁶, Minoru Ikehara¹, Takuya Itaki² (1.Center for Advanced Marine Core Research, Kochi University, Japan, 2.Geological Survey of Japan, AIST, Tsukuba, Japan, 3.UMR 5805 CNRS EPOC, Université de Bordeaux, France, 4.GNS Science, Lower Hutt, New Zealand, 5.LSCE-IPSL, CEA-CNRS-UVSQ, 91198 Gif-sur-Yvette, France, 6.Institute of Geological Sciences & Oeschger Centre for Climate Change Research, University of Bern, Switzerland)

11:00 AM - 11:15 AM

[MIS14-07] Present-day crustal motion and gravity change in East Antarctica: implications for the mantle viscosity and Holocene Antarctic Ice Sheet change inferred from GIA modeling

*Jun'ichi Okuno^1,2, Koichiro Doi^1,2, Yuichi Aoyama^1,2, Takeshige Ishiwa¹, Akihisa Hattori², Yoichi Fukuda³ (1.National Institute of Polar Research, 2.SOKENDAI, 3.Kyoto University)

11:15 AM - 11:30 AM

[MIS14-08] Reconstruction of the East Antarctic ice sheet variability during the last 3 myrs in the central & eastern Droning Maud Land, East Antarctica

*Yusuke Suganuma^1,2, Moto Kawamata², Kota Katsuki³, Tatsuo Kanamaru⁴, Heitaro Kaneda⁵, Takushi Koyama⁶, Tanabe Yukiko^1,2, Daisuke Shibata⁷, Takeshige Ishiwa¹, Takuya Itaki⁸, Jun'ichi Okuno^1,2, Osamu Seki⁹, Itsuki Suto¹⁰, Masakazu Fujii^1,2, Hideki Miura^1,2 (1.National institute of Polar Research, 2.SOKENDAI, 3.Shimane University, 4.Nihon University, 5.Chiba University, 6.Oita University, 7.Tsukuba University, 8.GSJ, AIST, 9.Hokkaido University, 10.Nagoya University)

11:30 AM - 11:45 AM

[MIS14-09] Vertical ice flow motions obtained from year-round GNSS observations on Shirase Glacier, Antarctica

*Yuichi Aoyama^1,2, Koichiro Doi^1,2, Daisuke Hirano³, Takeshi Tamura^1,2, Shigeru Aoki³, Kazuo Shibuya¹ (1.National Institute of Polar Research, 2.SOKENDAI, 3.Institute of Low Temperature Science, Hokkaido University)

11:45 AM - 12:00 PM

[MIS14-10] Operation plan and design of the Antarctic exploration 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 Center, 3.National Institute of Polar Research)

12:00 PM - 12:15 PM

[MIS14-11] Geophysical insights into tectonic, volcanic, sedimentation, and glacial processes in Indian and Southern Oceans: Preliminary geophysical results of R/V Hakuho-maru KH-19-1 cruise

*Masakazu Fujii¹, Hiroshi Sato², Minoru Ikehara³, Yoshifumi Nogi¹, Taichi Sato⁴, Yasuyuki Nakamura⁵, Eri Helen Amsler⁶, Sam Sherriff-Tadano⁷ (1.National Institute of Polar Research and SOKENDAI, 2.Senshu University, 3.Kochi University, 4.AIST, 5.JAMSTEC, 6.University of Bern, 7.AORI, UTokyo)

Session information