JpGU-AGU Joint Meeting 2017

Session information

[EE] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS06] [EE] Evolution and variability of Asian Monsoon and its linkage with Cenozoic global cooling

Tue. May 23, 2017 1:45 PM - 3:15 PM A09 (Tokyo Bay Makuhari Hall)

convener:Ryuji Tada(Department of Earth and Planetary Science, Graduate School of Science, The Univeristy of Tokyo), Christian Betzler(University of Hamburg), Peter Dominic Clift(Louisiana State University), Chairperson:Takuya Sagawa(Institute of Science and Engineering, Kanazawa University), Chairperson:Yoshimi Kubota(National Museum of Nature and Science)

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.

2:05 PM - 2:20 PM

*Ken Sawada1, Chiaki Aoyagi1, Satoshi Furota1, Tomohisa Irino2, Yaeko Igarashi3 (1.Department of Earth and Planetary Sciences, Faculty of Science, Hokkaido University, 2.Faculty of Environmental Earth Science, Hokkaido University, 3.Institute for Paleoenvironment of Northern Regions)

2:35 PM - 2:55 PM

*Christian Betzler1, Gregor P Eberli2, Dick Kroon3, James D. Wright4, Peter K Swart2, Bejugam N Nath5, John J Reijmer6, Carlos A Alvarez-Zarikian7, IODP Exp. 359 Scientists7 (1.University of Hamburg, 2.University of Miami, 3.University of Edinburgh, 4.Rutgers University, 5.CSIR-National Institute of Oceanography, 6.King Fadh University of Petroleum & Minerals, 7.International Ocean Discovery Program)

2:55 PM - 3:15 PM

*Dirk Kroon1, Tereza Kunkelova1, Simon Jung1, Erica Sandra de Leau1, Nick Odling1, Silvia Spezzaferri2, Stefanie Hayman2, Andres Rüggeberg2, Montserrat Alonso Garcia3, JIm Wright4, Carlos Alvarez Zarikian5, Christian Betzler6, Gregor Eberli7, Luigi Jovane8, Juan Laya9, Anna Ling Hui-Mee7, John Reijmer10, Juan Reolid9, Craig Sloss11 (1.School of GeoSciences; University of Edinburgh; Scotland, 2.Earth Sciences;Universite of Fribourg; Switzerland, 3.Instituto Portugues do Mar e da Atmosfera (IPMA), Lisboa, and Centro de Ciências do Mar (CCMAR), Universidade do Algarve, Faro, Portugal, 4.Department of Geological Sciences, Rutgers, USA, 5.IODP, Texas A&M University, College Station, TX 77845, USA, 6.Institute of Geology, CEN, University of Hamburg, Germany, 7.Department of Marine Geosciences, University of Miami, USA, 8.Instituto Oceanográfico da Universidade de São Paulo; Praça do Oceanográfico, 191, Brazil, 9.Department of Geology and Geophysics, Texas A &M University, College Station, 10.College of Petroleum Engineering and Geosciences, KFUPM, Dhahran, Saudi Arabia, 11.School of Earth, Environmental and Biological Sciences, Queensland University of Technology, Brisbane Australia)




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