[M-IS21] Global climate and ecosystem change driven by Southern Ocean and Antarctic Ice Sheet

Wed. May 27, 2015 11:00 AM - 12:45 PM 301A (3F)

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:Takeshi Tamura(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 Earth's climate and ecosystem changes. 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 in the Southern Ocean which is essential element for unraveling the changes in the Erarth's climate system, and discuss future science plans for understanding of the environmental changes of the Antarctic Cryosphere.

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11:00 AM - 11:15 AM

[MIS21-01] Integrated multidisciplinary study on change in the Southern Ocean and the Antarctic ice sheet

*Yoshifumi NOGI¹, Kay I. OHSHIMA², Minoru IKEHARA³, Masato MOTEKI⁴, Kenji KAWAMURA¹, Yoichi FUKUDA⁵, Ayako ABE-OUCHI⁶, Takeshi TAMURA¹, Yusuke SUGANUMA¹ (1.National Institute of Polar Research, 2.Institute of Low Temperature Science, Hokkaido University, 3.Center for Advanced Marine Core Research, Kochi University, 4.Tokyo University of Marine Science and Technology, 5.Department of Geophysics, Graduate School of Science, Kyoto University, 6.Atmosphere and Ocean Research Institute, The University of Tokyo)

11:15 AM - 11:30 AM

[MIS21-02] Reconstruction of the East Antarctic ice sheet variability during the last 3 Ma and glacial dynamism in the warm world

*Yusuke SUGANUMA¹, Jun'ichi OKUNO¹ (1.National Institute of Polar Research)

11:30 AM - 11:45 AM

[MIS21-03] Interannual Variation of Surface Wind over the Southern Ocean -Correlation Feature with DPOI and KDOI-

*Masafumi YAGI¹, Kunio KUTSUWADA¹, Mikio NAGANOBU², Daichi KOBAYASHI¹ (1.School of Marine Science Technology , Tokai University, 2.NRIFSF/Fisheries Research Agency)

11:45 AM - 12:15 PM

★ [MIS21-04] Variability of the Southern Ocean in annual to decadal time scales

*Katsuro KATSUMATA¹ (1.JAMSTEC)

12:15 PM - 12:45 PM

★ [MIS21-05] Prospects of Antarctic climate and ice sheet studies based on ice cores

*Kenji KAWAMURA¹, Ayako ABE-OUCHI², Shuji FUJITA¹, Kumiko GOTO-AZUMA¹, Hideaki MOTOYAMA¹, Ryu UEMURA³, Yoshinori IIZUKA⁴ (1.National Institute of Polar Research, 2.Atmosphere and Ocean Research Institute, The University of Tokyo, 3.University of the Ryukyus, 4.ILTS, Hokkaido University)