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 as playing a significant role on the establishment of AM, numerous attempts have been made to prove the linkage between the HTP uplift and AM evolution. On the other hand, comparison of global climate, pCO2, and AM evolution during Cenozoic suggests that AM evolution is significantly affected by global climate and pCO2. Thus, importance of the HTP uplift on AM evolution is questioned. However, 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 2013 to 2016, IODP conducted a series of expeditions that are related to AM evolution and its interaction with climate system in NW Pacific and Indian Ocean regions, and exciting results are gradually coming out. So it is timely to start gathering and synthesizing the results of these cruises and exchange information and ideas to promote our understanding of AM evolution, variability, their controlling factors, and their interaction with HTP uplift and/or global climate system during the Cenozoic.
Edited by: Ryuji Tada, Christian Betzler and Peter Clift