[M-IS20] Global climate change driven by the Southern Ocean and the Antarctic Ice Sheet

Thu. Jun 2, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (35) (Ch.35)

convener:Osamu Seki(Institute of Low Temperature Science, Hokkaido University), convener:Yusuke Suganuma(National institute of Polar Research), Masahiro Minowa(Institute of Low Temperature Science, Hokkaido University), Chairperson:Osamu Seki(Institute of Low Temperature Science, Hokkaido University), Yusuke Suganuma(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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11:00 AM - 1:00 PM

[MIS20-P01] Summary of the 5 Years Activities of the Project on the Interaction of the solid Earth and the Antarctic Ice Sheet

*Yoichi Fukuda¹, Jun Nishijima², Takahito Kazama³, Kazuki Nakamura⁴, Koichiro Doi¹, Yusuke Suganuma¹, Jun'ichi Okuno¹, Akito Araya⁵, Heitaro Kaneda⁶, Yuichi Aoyama¹, Hideki Miura¹ (1.National Institute of Polar Research, 2.Graduate School of Engineering, Kyushu University, 3.Graduate School of Science, Kyoto University, 4.Faculty of Engineering, Nihon University, 5.ERI, University of Tokyo, 6.Faculty of Science and Engineering, Chuo University)

11:00 AM - 1:00 PM

[MIS20-P02] Oceanic mixing on the continental slope of the Australia-Antarctic Basin

*Katsuro Katsumata¹ (1.JAMSTEC)

11:00 AM - 1:00 PM

[MIS20-P03] Estimation of flow velocity of Shirase Glacier using Sentinel-1 SAR data

*Shotaro Ohkawa¹, Koichiro Doi^2,1, Kazuki Nakamura³, Yuichi Aoyama^2,1, Hiroto Nagai⁴ (1.The Graduate University for Advanced Studies, SOKENDAI, 2.National Institute of Polar Research, 3.College of Engineering, Nihon University, 4.School of Education, Waseda University)

11:00 AM - 1:00 PM

[MIS20-P04] Reconstruction of Circumpolar Deep Water mass change in high latitudes Southern Ocean during the Last Interglacial based on radiolarian assemblage

*Mutsumi Iizuka¹, Takuya Itaki², Osamu Seki¹ (1.Hokkaido university, 2.National Institute of Advanced Industrial Science and Technology)

11:00 AM - 1:00 PM

[MIS20-P05] Detection of the grounding line of Langhobde and Shirase glaciers in East Antarctica

*Chiyuki Narama¹, Tsutomu Yamanokuchi², Shin Sugiyama³ (1.Niigata University, Program of Field Research in the Environmental Sciences, 2.RESTEC, 3.Hokkaido University, Institute of Low Temperature Science)

11:00 AM - 1:00 PM

[MIS20-P06] GDGT based SST records in the Scotia Sea over the past 800 kyrs

*Osamu Seki¹, Masanobu Yamamoto³, IODP expedition 382 scientists² (1.Institute of Low Temperature Science, Hokkaido University, 2.IODP Expedition 382, 3.Faculty of Environmental Earth Science, Hokkaido University)

11:00 AM - 1:00 PM

[MIS20-P07] On-site observation of snow grain size between the coast of the East Antarctic Ice Sheet and Dome Fuji, by the Handheld Integrating Sphere Snow Grain Sizer (HISSGraS)

*Ryo Inoue¹, Teruo Aoki^2,1, Shuji Fujita^2,1, Kenji Kawamura^2,1,3, Shun Tsutaki², Hideaki Motoyama^2,1, Fumio Nakazawa^2,1 (1.The Graduate University for Advanced Studies, 2.National Institute of Polar Research, 3.Japan Agency for Marine-Earth Science and Technology)

11:00 AM - 1:00 PM

[MIS20-P08] Separating of Glacial Isostatic Adjustment (GIA) across Antarctica from GRACE/GRACE-FO observations via Independent Component Analysis (ICA)

*Tianyan Shi¹, Yoichi Fukuda², Koichiro Doi^1,2, Jun'ichi Okuno^1,2 (1.Department of Polar Science, Gradualate University for Advanced studies School of Multidisciplinary Sciences, 2.National Institute of Polar Research)

11:00 AM - 1:00 PM

[MIS20-P09] Determination of long-term mass variation of the Antarctic ice sheet using satellite gravimetry and satellite altimetry data

*Keiko Yamamoto¹, Jun'ichi Okuno², Koichiro Doi², Yoichi Fukuda² (1.National Astronomical Observatory of Japan, 2.National Institute of Polar Research)

11:00 AM - 1:00 PM

[MIS20-P10] An AUV Capturerig Drone “ANCO”

*Hiroshi Yoshida¹, Hirokazu Yamagata², Toshihiro Maki², Masakazu Fujii³, Yoshifumi Nogi³ (1.Japan Agency for Marine-Earth Science and Technology, 2.The University of Tokyo, 3.National Institute of Polar Research )

Session information

[M-IS20] Global climate change driven by the Southern Ocean and the Antarctic Ice Sheet

[MIS20-P01] Summary of the 5 Years Activities of the Project on the Interaction of the solid Earth and the Antarctic Ice Sheet

[MIS20-P02] Oceanic mixing on the continental slope of the Australia-Antarctic Basin

[MIS20-P03] Estimation of flow velocity of Shirase Glacier using Sentinel-1 SAR data

[MIS20-P04] Reconstruction of Circumpolar Deep Water mass change in high latitudes Southern Ocean during the Last Interglacial based on radiolarian assemblage

[MIS20-P05] Detection of the grounding line of Langhobde and Shirase glaciers in East Antarctica

[MIS20-P06] GDGT based SST records in the Scotia Sea over the past 800 kyrs

[MIS20-P07] On-site observation of snow grain size between the coast of the East Antarctic Ice Sheet and Dome Fuji, by the Handheld Integrating Sphere Snow Grain Sizer (HISSGraS)

[MIS20-P08] Separating of Glacial Isostatic Adjustment (GIA) across Antarctica from GRACE/GRACE-FO observations via Independent Component Analysis (ICA)

[MIS20-P09] Determination of long-term mass variation of the Antarctic ice sheet using satellite gravimetry and satellite altimetry data

[MIS20-P10] An AUV Capturerig Drone “ANCO”

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