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

Tue. May 24, 2016 3:30 PM - 5:00 PM 201B (2F)

Convener:*Minoru Ikehara(Center for Advanced Marine Core Research, Kochi University), Yoshifumi Nogi(National Institute of Polar Research), Kay I. Ohshima(Institute of Low Temperature Science, Hokkaido University), Chair:Kay I. Ohshima(Institute of Low Temperature Science, Hokkaido University), Yoshifumi Nogi(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 ocean circulation as well as ecosystem in the Southern Ocean which is essential element for unraveling the changes in the global climate system, and discuss future science plans for understanding of the environmental changes of the Antarctic Cryosphere.

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3:30 PM - 3:45 PM

[MIS15-06] Role of the Southern Ocean in the post-2002 global warming hiatus

*Akira Oka¹, Masahiro Watanabe¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo)

3:45 PM - 4:00 PM

[MIS15-07] Temporal and spatial variability of the ACC, fronts and eddies in the Indian Sector of the Southern Ocean derived from satellite radar altimetry

*Kohei Mizobata¹ (1.Tokyo University of Marine Science and Technology)

4:00 PM - 4:15 PM

[MIS15-08] Role of Weddell Sea ice variability in southern African climate

*Yushi Morioka¹, Francois Engelbrecht², Swadhin Behera¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Council for Scientific and Industrial Research)

4:15 PM - 4:30 PM

[MIS15-09] Development of a thin ice thickness algorithm of AMSR2 for Antarctic coastal polynyas

*Sohey Nihashi¹, Kay I. Ohshima² (1.Department of Mechanical Engineering, National Institute of Technology, Tomakomai College, 2.Institute of Low Temperature Science, Hokkaido University)

4:30 PM - 4:45 PM

[MIS15-10] Estimation of thin ice thickness discriminating polynya type from AMSR-E passive microwave data

*Kazuki Nakata¹, Kay I. Ohshima², Sohey Nihashi³ (1.Graduate School of Environmental Science, Hokkaido University, 2.Institute of Low Temperature Science, Hokkaido University, 3.National Institute of Technology, Tomakomai College)

4:45 PM - 5:00 PM

[MIS15-11] Temporal and spatial variation of dissolved inorganic carbonates in the summer of Antarctic seasonal sea ice zone

*Gen Hashida¹, Tomomi Takamura¹, Daiki Nomura², Hisayuki Yoshikawa³ (1.Inter-university Research Institute Corporation Research Organization of Information and Systems / National Institute of Polar Research, 2.Hokkaido University, Faculty of Fisheries Science, 3.Hokkaido University, Graduate School of Environmental Science)