Atmospheric and Hydrospheric Sciences(A)
Session Sub-categoryComplex & General
Session IDA-CG39
TitleMulti-scale ocean-atmosphere interaction in the tropical Indo-Pacific region
Short TitleTropical ocean-atmosphere interaction
Main ConvenerNameYukiko Imada
AffiliationMeteorological Research Institute, Japan Meteorological Agency
Co-Convener 1NameTomoki Tozuka
AffiliationDepartment of Earth and Planetary Science, Graduate School of Science, The University of Tokyo
Co-Convener 2NameHiroki Tokinaga
AffiliationDisaster Prevention Research Institute, Kyoto University
Co-Convener 3NameYu Kosaka
AffiliationResearch Center for Advanced Science and Technology, University of Tokyo
Session LanguageEJ
ScopeMulti-scale ocean-atmosphere interaction in the tropics exerts a significant imprint on the global climate via atmospheric teleconnection. Since the 1980s, anchored by in-situ and satellite observations, improvements in modeling and theoretical understanding, various aspects of dominant modes of interannual (e.g., ENSO and IOD), intraseasonal (e.g., MJO) variabilities and their impacts on tropical (e.g., monsoons) and extra-tropical (e.g., North America) climate variations have received wide attention. Recent satellite-based salinity measurements indicate for an active role of salinity in the tropical ocean-atmosphere interaction. While recent studies suggest a possible link between interdecadal Pacific oscillation and global warming hiatus in 2000s, changes (if any) in the tropical ocean-atmosphere interaction are yet to be understood. Due to interactions between different time scales, between different ocean basins, and with the extratropics, the tropical ocean and atmosphere play a key role in shaping climate, its variability and change. To better understand and examine these challenging issues from various perspectives, this session offers a forum to discuss recent progress in observational, modeling and theoretical studies of multi-scale tropical ocean-atmosphere interaction.
Presentation FormatOral and Poster presentation
Co-Sponsoring Societies
(Society Members)
The Oceanographic Society of Japan
Invited Authors
  • Takanori Horii (Research and Development Center for Global Change (RCGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC))
  • Youichi Kamae (Faculty of Life and Environmental Sciences, University of Tsukuba)
  • Youichi Tanimoto (Hokkaido University)
  • Goro Yamanaka (Meteorological Research Institute)
Time Presentation No Title Presenter Abstract
Oral Presentation May 21 AM1
09:00 - 09:15 ACG39-01Contrasting Development and Decay Processes of Indian Ocean Dipoles during Recent DecadesTakanori Horii Abstract
09:15 - 09:30 ACG39-02Subsurface IOD revisited:Contribution from nonlinear rectification of high-frequency variabilityShoichiro Kido Abstract
09:30 - 09:45 ACG39-03Combined effects of SSTs in the Indian and Pacific Ocean on the seasonal modulations of the western North Pacific rainfall and typhoonsHiroaki Ueda Abstract
09:45 - 10:00 ACG39-04Indian Ocean warming and East Asian atmospheric river activity in post El Niño summerYouichi Kamae Abstract
10:00 - 10:15 ACG39-05Multiple time scale impact of zonal sea surface temperature anomaly contrast over the Indian-western Pacific Oceans on Asia-Pacific summer monsoon systemToru Terao Abstract
10:15 - 10:30 ACG39-06Relationship between rainfall at Cherrapunji, northeast India and anomalous anticyclonic circulation over western North PacificFumie Murata Abstract
Oral Presentation May 21 AM2
10:45 - 11:00 ACG39-07Future changes of the cross-equatorial SST gradient over the Eastern PacificYouichi Tanimoto Abstract
11:00 - 11:15 ACG39-08El Niño or La Niña-like global warming? - a case study with GFDL-ESM2M and MIROC5Tsubasa Kohyama Abstract
11:15 - 11:30 ACG39-09Understanding the effect of excessive cold tongue bias on the projections for the tropical Pacific SST warming pattern Jun Ying Abstract
11:30 - 11:45 ACG39-10Interannual to decadal variability of sea level in the tropical PacificGoro Yamanaka Abstract
11:45 - 12:00 ACG39-11Global temperature fluctuations due to tropical Pacific decadal variability and their uncertaintyYu Kosaka Abstract
12:00 - 12:15 ACG39-12Ensemble-based Atmospheric Reanalysis using a Global Coupled Atmosphere-Ocean GCMNobumasa Komori Abstract
Presentation No Title Presenter Abstract
Poster Presentation May 21 Core Time
ACG39-P01 ENSO prediction using an earth system model incorporating a high-resolution tropical ocean nesting model Yukiko Imada Abstract
ACG39-P02 Interannual variability of Australian summer monsoon and its remote influence on wintertime East Asian climate Shion Sekizawa Abstract
ACG39-P03 Effects of the Australian monsoon on the duration of La Niña longer than that of El Niño Taiga Shirai Abstract
ACG39-P04 Patterns of basin-wide warming in the Indian Ocean and their possible mechanisms Natsumi Tanji Abstract