Japan Geoscience Union Meeting 2019

Session information

[E] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS03] Evolution and variability of the Asian monsoon in Cenozoic global climate changes

Thu. May 30, 2019 3:30 PM - 5:00 PM 304 (3F)

convener:Masanobu Yamamoto(Faculty of Environmental Earth Science, Hokkaido University), Ryuji Tada(Department of Earth and Planetary Science, Graduate School of Science, The Univeristy of Tokyo), Chairperson:Ryuji Tada(The University of Tokyo), Yoshimi Kubota(National Science Museum), Masanobu Yamamoto(Hokkaido University)

The Asian Monsoon (AM) is a part of interhemispheric atmospheric phenomena that is driven by the thermal gradient between ocean and land. Contrasts of insolation, heat content and latent heat transfer between ocean and land may have affected the behavior of the AM in the past, but the proxy records are occasionally controversial and do not show a clear picture of the AM variability. Recent proxy and modeling studies suggest that glacial pCO2 cycles could be related to the position of southern westerlies, which is sensitive to interhemispheric heat imbalance. Because monsoon is driven by the heat imbalance, knowledge on the variability of the AM is important to understand the behavior of the global climate system. In this session, presentations on the reconstruction of long-term AM variability from various archives such as IODP expedition cores, discussion on its forcing, and the roles of the AM in global climate changes are welcome.

3:30 PM - 3:45 PM

*Yuki Ota1,2,3,4, Hodaka Kawahata4, Junichiro Kuroda4,3, Atsushi Suzuki2, Daisuke Araoka2, Asuka Yamaguchi4, Ayako Abe-Ouchi4 (1.Department of Earth and Planetary Science, The University of Tokyo, 2.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 3.Department of Biogeochemistry, Japan Agency for Marine-Earth Science and Technology, 4.Atmosphere and Ocean Research Institute, The University of Tokyo)

3:45 PM - 4:05 PM

*Yoshimi Kubota1, Steven Clemens2, Kyung-Eun Lee3, Ann Holbourn4, Etsuko Wakisaka5, Keiji Horikawa5, Ryuji Tada6, Katsunori Kimoto7 (1.National Museum of Nature and Science, 2.Brown University, 3.Korea Maritime and Ocean University, 4.Christian-Albrechts-University, 5.University of Toyama, 6.The University of Tokyo, 7.Japan Agency for Marine-Earth Science and Technology)

4:05 PM - 4:20 PM

*Ryuji Tada1, Tomohisa Irino2, Arisa Seki3, Masafumi Murayama4, Kaz Mitake1, Masayuki Ikeda5 (1.Department of Earth and Planetary Science, Graduate School of Science, The Univeristy of Tokyo, 2.Faculty of Environmental Earth Science, Hokkaido University, 3.Faculty of Science, Shinshu University, 4.Faculty of Agriculture and Marine Science, 5.Shizuoka University)



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