JpGU-AGU Joint Meeting 2020

Session information

[E] Oral

A (Atmospheric and Hydrospheric Sciences ) » A-CG Complex & General

[A-CG45] Multi-scale ocean-atmosphere interaction in the tropical Indo-Pacific region

convener:Yu Kosaka(Research Center for Advanced Science and Technology, University of Tokyo), Sang-Wook Yeh(Hanyang University), Takanori Horii(Research and Development Center for Global Change (RCGC), Strategic Research and Development Area, Japan Agency for Marine-Earth Science and Technology (JAMSTEC)), Hiroki Tokinaga(Disaster Prevention Research Institute, Kyoto University)

Tropical Indo-Pacific Oceans are home to ocean-atmosphere interaction on a broad range of spatio-temporal scales. Teleconnections induced by the tropical Indo-Pacific variability exert a significant imprint on global climate. Since the 1980s, in-situ and satellite observations, reanalysis products, and advancements in climate modeling have led to depicting various aspects of intraseasonal (e.g., MJO), interannual (e.g., ENSO and IOD) and decadal (e.g., IPO) variability in the tropical Indo-Pacific Oceans and their impacts on tropical (e.g., monsoons) and extratropical (e.g., storm track) climate. Newer studies find an active role of salinity in ocean-atmosphere interaction in the tropical Indian Ocean. Other recent studies highlight the inter-basin coupling between the tropical Pacific and the Indian Ocean in seasonal prediction of the Asian summer monsoon and decadal redistribution of ocean heat content associated with the so-called "hiatus" of global warming. Long term change in the Pacific Walker circulation has been recapturing attention in terms of the pattern effect of warming on climate feedback and sensitivity against radiative forcing as well as ENSO modulations under a warmer climate. A variety of processes are mutually interrelated and shape the climate, its variability, and change. To examine these challenging issues from various perspectives and foster understanding of the role of tropical air-sea interaction in the climate system, this session offers a forum to discuss recent progress in observational, modeling and theoretical studies of multi-scale tropical ocean-atmosphere interaction in the tropical Indo-Pacific Oceans.