Mon. Apr 28, 2014 2:15 PM - 4:00 PM 423 (4F)

Convener:*Motoki Nagura(Japan Agency for Marine-Earth Science and Technology), Takuya Hasegawa(Japan Agency for Marine-Earth Science and Technology), Ayako Seiki(Japan Agency for Marine-Earth Science and Technology), Tomoki Tozuka(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo), Hiroki Tokinaga(International Pacific Research Center, University of Hawaii), Masamichi Ohba(Central Research Institute of Electric Power Industry (CRIEPI), Environmental Science Research Laboratory), Yukiko Imada(Atmosphere and Ocean Research Institute, the University of Tokyo), Chair:Takuya Hasegawa(Japan Agency for Marine-Earth Science and Technology), Yukiko Imada(Atmosphere and Ocean Research Institute, the University of Tokyo)

El Nino/Southern Oscillation, Indian Ocean Dipole, Atlantic Nino, and Atlantic Meridional Mode are ocean-atmosphere interaction phenomena in the tropics. These phenomena have interannual timescales of two- to seven-year periods. It has been pointed out that they are related to various phenomena of shorter (e.g., intraseasonal) and longer (e.g., quasidecadal, multidecadal to long-term trend) timescales as well as phenomena of various spatial scales. In addition to interactions among the tropical phenomena, links with atmospheric and oceanic variations in mid to high latitudes have been discussed in past studies. These phenomena strongly affect weather, climate, and climate variations over the globe including those in Japan. To enhance our understanding of tropical ocean-atmosphere interactions and other related phenomena, cooperation between various fields (meteorology, oceanography, climatology, etc.) needs to be strengthened. This session aims to give an opportunity for researchers of atmosphere and ocean to present results on phenomena on various spatial and temporal scales, including tropical ocean-atmosphere interactions on interannual timescales, Madden-Julian Oscillation (MJO), tropical cyclones (typhoons), quasi-decadal to multi-decadal variations, climate change and other related phenomena, so that researches on tropical multi-scale ocean-atmosphere interactions are promoted. We welcome submissions on theoretical, observational, and modeling studies.