JpGU-AGU Joint Meeting 2020

Session information

[E] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[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.

*Michael E Weber1, Maureen E Raymo2, Victoria L Peck3, Trevor Williams4, Osamu Seki5, Yuji Kato6, Mutsumi Iizuka5, and IODP 382 Scientists (1.Steinmann Institute, University of Bonn, Bonn, Germany, 2.Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York, USA, 3.British Antarctic Survey, Cambridge, UK, 4.International Ocean Discovery Program, Texas A&M University, College Station, USA, 5.Institute of Low Temperature Science, Hokkaido University, Japan, 6.Center for Advanced Marine Core Research, Kochi University, Japan)

*Kohei Mizobata1, Yujiro Kitade1, Keishi Shimada1, Daisuke Hirano2, Yoshimasa Matsumura3, Cheng Lingqiao4, Shigeru Aoki2, Takeshi Tamura5 (1.Tokyo University of Marine Science and Technology, 2.Institute of Low Temperature Science, Hokkaido University, 3.Atmosphere and Ocean Research Institute, The University of Tokyo, 4.Shanghai Ocean University, 5.National Institute of Polar Researc)