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

Mon. May 27, 2019 1:45 PM - 3:15 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:Takeshige Ishiwa(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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1:45 PM - 2:00 PM

[MIS14-12] Simulations of glacial ocean carbon cycle with a parameterization of stratification dependence of vertical diffusivity

*Hidetaka Kobayashi¹, Akira Oka¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo)

2:00 PM - 2:15 PM

[MIS14-13] Impacts of precession on the periodicity of climate and AMOC variabilities

*Sam Sherriff-Tadano¹ (1.Atmosphere and Ocean Research Institute, the University of Tokyo)

2:15 PM - 2:30 PM

[MIS14-14] Warming and climate feedbacks in the southern high latitude driven by obliquity, precession-eccentricity, and atmospheric CO2

*Kanon Kino¹, Ayako Abe-Ouchi^1,2, Ryouta O'ishi¹, Fuyuki SAITO², Masakazu Yoshimori¹ (1.Atmosphere and Ocean Research Institute, the University of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology)

2:30 PM - 2:45 PM

[MIS14-15] Origin of Circumpolar Deep Water intruding onto the Amundsen and Bellingshausen Sea continental shelves

*Yoshihiro Nakayama^1,2, Menemenlis Dimitris², Hong Zhang², Michael Schodlok², Eric Rignot^2,3 (1.Institute of Low Temperature Science, Hokkaido University, 2.NASA's Jet Propulsion Laboratory, 3.Uniersity of California, Irvine)

2:45 PM - 3:00 PM

[MIS14-16] Ocean and material circulation in the southern part of the Australian Antarctic Basin in 2018/2019 summer - preliminary results from Kaiyomaru KY18-04 cruise

*Katsuro Katsumata¹, Daisuke Hirano², Daiki Nomura², Kaihe Yamazaki², Yoichiro Koh², Masaaki Kiuchi², Shigeru Aoki², Hiroto Murase³ (1.JAMSTEC, 2.Hokkaido Univ., 3.NRI-FSF)

3:00 PM - 3:15 PM

[MIS14-17] Mooring observation aiming direct current measurement and quantitative evaluation of Meridional Circulation of Southern Ocean

*Kitade Yujiro¹, Kohei Mizobata¹, Kazuho Watanabe¹, Linquiao Chen³, Gaopin Guo³, Shigeru Aoki², Shyuki Ushio⁴, Keishi Shimada¹, Kay I. Ohshima² (1.Tokyo University of Marine Science and Technology, 2.Hokkaido University, 3.Shanghi Ocean University, 4.National Institute of Polar Research)

Session information