[M-IS14] Paleoclimatology and paleoceanography

Fri. May 30, 2025 9:00 AM - 10:30 AM Convention Hall (CH-A) (International Conference Hall, Makuhari Messe)

convener:Takashi Obase(Japan Agency for Marine-Earth Science and Technology), Atsuko Yamazaki(Graduate School of Environmental Studies, Nagoya University), Hitoshi Hasegawa(Faculty of Science and Technology, Kochi University), Yusuke Okazaki(Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University), Chairperson:Hitoshi Hasegawa(Faculty of Science and Technology, Kochi University)

We discuss past environmental changes and events at interannual to tectonic timescale toward understanding Earth's climate system by integrating terrestrial and marine proxy studies and numerical modeling. At JpGU2025, in addition to the regular session, we will have a topic session on highlighting the characteristic of "present-day" climate and ocean from perspective of paleoclimate and paleoceanography. We hope this session will provide an opportunity to promote communication between participants from the multidisciplinary field.

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9:00 AM - 9:15 AM

[MIS14-11] Understanding Large-Scale Retreat Mechanisms of the East Antarctic Ice Sheet through Seamless Sea-Land Geological Drilling

*Yusuke Suganuma^1,2, Takuya Itaki³, Yuki Haneda⁴, Kazuya Kusahara⁵, Takashi Obase⁵, Takashige Ishiwa^1,2, Takayuki Omori⁶, Minoru Ikehara⁷, Rob McKay¹⁰, Osamu Seki⁴, Daisuke Hirano^1,2, Masakazu Fujii^1,2, Yuji Kato⁷, Atsuko Amano³, Yuki Tokuda⁹, Hokuto Iwatani⁸, Yoshiaki Suzuki³, Motohiro Hirabayashi¹, Hiroyuki Matsuzaki⁶, Takeyasu Yamagata⁶, Masao Iwai⁷, Kota Katsuki¹¹, Francisco J. Jimenez-Espejo¹², Hiroki Matsui¹³, Koji Seike³, Moto Kawamata¹⁴, Naohisa Nishida¹⁵, Masato Ito¹, Shin Sugiyama⁴, Jun'ichi Okuno^1,2, Takanobu Sawagaki¹⁶, Ayako Abe-Ouchi⁶, Shigeru Aoki⁴, Hideki Miura¹⁷ (1.National institute of Polar Research, 2.The Graduate University for Advanced Studies (SOKENDAI), 3.Geological Survey of Japan, AIST, 4.Institute of Low Temperature Science, Hokkaido University, 5.JAMSTEC, 6.The University of Tokyo, 7.Marine Core Research Institute, Kochi University, 8.Yamaguchi University, 9.Tottori University of Environmental Studies, 10.Antarctic Research Centre, Victoria University of Wellington, 11.Shimane University, 12.Consejo Superior de Investigaciones Científicas-Universidad de Granada, 13.Akita University, 14.Civil Engineering Research Institute for Cold Region, 15.Tokyo Gakugei University, 16.Hosei University, 17.Aomori Public University)

9:15 AM - 9:30 AM

[MIS14-12] Revision of pollen data from the Chiba Composite Section (CbCS) as proxy for terrestrial temperature around MIS 19

*Masaaki Okuda¹, Yuki Haneda², Yusuke Suganuma³, Makoto Okada⁴ (1.Natural History Museum and Institute, Chiba, 2.Geological Survey of Japan, AIST, 3.National Institute of Polar Research, 4.Department of Earth Sciences, College of Science, Ibaraki University)

9:30 AM - 9:45 AM

[MIS14-13] Bistability of AMOC and Millennial scale climate variability; dependence on background climate condition in the past, present and future

*Ayako Abe-Ouchi¹, Wing-Le Chan¹, Sam Sherriff-Tadano², Yuta Kuniyoshi¹, Takahito Mitsui³, Takashi Obase⁴, Akira Oka¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Ryukyu Univ., 3.Juntendo University , 4.JAMSTEC)

9:45 AM - 10:07 AM

[MIS14-14] Evaluating Eurasian ice sheet reconstructions based on the DATED-2 margin chronology using paleo sea level constraints

★Invited Papers

*Evan James Gowan¹, Anna Hughes², Richard Gyllencreutz³, Jan Mangerud⁴, John Inge Svendsen⁴, Jo Brendryen⁴, Riccardo Riva⁵ (1.Kumamoto University, Kumamoto, Japan, 2.University of Manchester, Manchester, United Kingdom, 3.Stockholm University, Stockholm, Sweden, 4.University of Bergen, Bergen, Norway, 5.Delft University of Technology, Delft, Netherlands)

10:07 AM - 10:30 AM

[MIS14-15] Change in deep-seawater [CO₃^2-] in the Southern Pacific during the last interglacial

★Invited Papers

*Shinya Iwasaki¹, Katsunori Kimoto², Lester Lembke-Jene³, Rika Horiuchi², Kana Nagashima², Frank Lamy³, Julia Rieke Hagemann³, Helge Arz⁴, Takuto Kasuya⁵, Kota Sakaoka¹, Tomohisa Irino¹, Naomi Harada⁶ (1.Graduate School of Environmental Science, Hokkaido University, 2.JAMSTEC, 3.AWI, 4.Leibniz Institute for Baltic Sea Research, 5.Kyushu University, 6.University of Tokyo)

Session information

[M-IS14] Paleoclimatology and paleoceanography

[MIS14-11] Understanding Large-Scale Retreat Mechanisms of the East Antarctic Ice Sheet through Seamless Sea-Land Geological Drilling

[MIS14-12] Revision of pollen data from the Chiba Composite Section (CbCS) as proxy for terrestrial temperature around MIS 19

[MIS14-13] Bistability of AMOC and Millennial scale climate variability; dependence on background climate condition in the past, present and future

[MIS14-14] Evaluating Eurasian ice sheet reconstructions based on the DATED-2 margin chronology using paleo sea level constraints

★Invited Papers

[MIS14-15] Change in deep-seawater [CO₃^2-] in the Southern Pacific during the last interglacial

★Invited Papers

Authentication

Session information

[M-IS14] Paleoclimatology and paleoceanography

[MIS14-11] Understanding Large-Scale Retreat Mechanisms of the East Antarctic Ice Sheet through Seamless Sea-Land Geological Drilling

[MIS14-12] Revision of pollen data from the Chiba Composite Section (CbCS) as proxy for terrestrial temperature around MIS 19

[MIS14-13] Bistability of AMOC and Millennial scale climate variability; dependence on background climate condition in the past, present and future

[MIS14-14] Evaluating Eurasian ice sheet reconstructions based on the DATED-2 margin chronology using paleo sea level constraints

★Invited Papers

[MIS14-15] Change in deep-seawater [CO32-] in the Southern Pacific during the last interglacial

★Invited Papers

Authentication

[MIS14-15] Change in deep-seawater [CO₃^2-] in the Southern Pacific during the last interglacial