Japan Geoscience Union Meeting 2018

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[EE] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS01] Evolution and variability of Asian Monsoon and its linkage with Cenozoic global cooling

Mon. May 21, 2018 3:30 PM - 5:00 PM 201A (2F International Conference Hall, Makuhari Messe)

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:Yamamoto Masanobu(Hokkaido University), Tada Ryuji(The University of Tokyo), Irino Tomohisa, Matsuzaki Kenji(The University of Tokyo)

Although Asian Monsoon (AM) is a regional phenomenon, it exerts a significant impact on the global climate. Since uplift of Himalaya and Tibetan Plateau (HTP) has been considered to have played a significant role on the establishment and intensification of AM, numerous attempts have been made to prove the linkage between the HTP uplift and AM evolution, but the linkage is largely unproved till now. On the other hand, comparison of global climatic changes, pCO2 reconstructions, and AM evolution process during Cenozoic suggests that AM evolution is significantly affected by global climate changes most likely through pCO2. Thus, importance of the HTP uplift on AM evolution is questioned. However, it should be noted that the effects of the HTP uplift and AM precipitation on chemical weathering, erosion, and CO2 uptake could be acting as feedback loops on AM-HTP uplift linkage.

From July 2013 to November 2016, IODP conducted a series of expeditions such as 346 (Asian Monsoon), 353 (Indian Monsoon Rainfall), 354 (Bengal Fan), 355 (Arabian Monsoon), 356 (Indian through-flow), and 359 (Maldives Monsoon) that are related to AM evolution and its interaction with global climate system in NW Pacific and Indian Ocean regions, and exciting results are gradually coming out. We believe it is timely to start gathering and synthesizing the results of these cruises and update and exchange information and ideas to promote our understanding of AM evolution, variability, their controlling factors, and their interaction with global climate system during the Cenozoic.

4:00 PM - 4:15 PM

[MIS01-08] Relationship between typhoon-induced hazards in East Asia, pressure and SST pattern in Pacific Ocean during the Middle to Late Holocene

*Yoshiaki Suzuki1, Ryuji Tada2, Kana Nagashima3, Tomohisa Irino4, Takeshi Nakagawa5, Tsuyoshi Haraguchi6, Katsuya Gotanda7, Gordon Schlolaut3 (1.Waseda University, 2.University of Tokyo, 3.JAMSTEC, 4.Hokkaido University, 5.Ritsumeikan University, 6.Osaka City University, 7.Chiba University of Commerce)

4:30 PM - 4:45 PM

[MIS01-10] History of the Leeuwin Current during the last 5 million years: Evidence from seawater Neodymium isotope variation

★Invited Papers

*Hideko Takayanagi1, Shigeyuki Wakaki2, Irwan Irwan1, Naoki Sekine1, David De Vleeschouwer3, Jeroen Groeneveld3, Kara Bogus4, Takeshige Ishiwa5, Tokiyuki Sato6, Briony L. Mamo7, Yuxin He8, Cecilia M. McHugh9, Lars Reuning10, Willem Renema11, Beth A. Christensen12, Jorijntje Henderiks13, Stephen J. Gallagher14, Craig S. Fulthorpe15, Tsuyoshi Ishikawa2, Yusuke Yokoyama16, Yasufumi Iryu1 (1.Tohoku University, 2.JAMSTEC, 3.MARUM, 4.Texas A&M University, 5.National Institute of Polar Research, 6.Akita University, 7.University of Hong Kong, 8.Zhejiang University, 9.Queens College, 10.RWTH Aachen University, 11.Naturalis Biodiversity Center, 12.Adelphia University, 13.Uppsala University, 14.University of Melbourne, 15.University of Texas, 16.University of Tokyo)

4:45 PM - 5:00 PM

[MIS01-11] Miocene aridity and sabkha development: Southeast Indian Ocean offshore western Australia

★Invited Papers

*Cecilia M McHugh1, Gabriel Tagliaro2, Craig S. Fulthorpe2, Michelle Kominz3, Jeroen Groeneveld4, Yuxin He6, Hideko Takayanagi5 (1.School of Earth and Env. Sciences, Queens College City University of New York, USA and Lamont-Doherty Earth Observatory of Columbia University, NY, USA, 2.Institute for Geophysics, John A. and Katherine G. Jackson School of Geosciences, The University of Texas at Austin, TX, USA., 3.Department of Geosciences, Western Michigan University, Kalamazoo, MI, USA, 4.Faculty of Geosciences, Bremen University, Bremen, Germany, 5.Department of Earth Science, Tohoku University, JP, 6.School of Earth Sciences, Zhejiang University, Zheijang, China)

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