Atmospheric and Hydrospheric Sciences(A)
Session Sub-categoryOcean Sciences & Ocean Environment
Session IDA-OS10
TitleAtlantic climate variability, and its global impacts and predictability
Short TitleAtlantic variability
Main ConvenerNameIngo Richter
AffiliationJAMSTEC Japan Agency for Marine-Earth Science and Technology
Co-Convener 1NameNoel S Keenlyside
AffiliationGeophysical Institute Bergen
Co-Convener 2NameCarlos R Mechoso
AffiliationUniversity of California Los Angeles
Co-Convener 3NameYoshimitsu Chikamoto
AffiliationUtah State University
Session LanguageEE
ScopeThe Atlantic Ocean is subject to pronounced climate variations that occur on a wide range of time scales and can be globally connected to variations in other oceans and over continents. Atlantic multi-decadal variability (AMV) associated with the Atlantic meridional overturning circulation (AMOC) has long been known to have global impacts. In particular, AMV has been linked to changes in the Indian, Asian and South American summer monsoons, and also to changes in the Pacific associated with the "global hiatus". Interannual variability in the equatorial and subtropical Atlantic has also been shown to influence global climate, including over Asia. The freshening of the North Atlantic by melting of the Greenland ice cap is expected to influence all ocean basins via atmospheric bridges. Likewise, misrepresentation of the AMOC in climate models has been associated with model biases in the entire Northern Hemisphere. This session seeks observational, modeling, and theoretical studies on the mechanisms that determine the Atlantic mean climate and variability, as well as the predictability and global impacts of such variability. We also seek studies that evaluate climate model performance in the region. Topics include atmosphere-ocean-cloud interactions in the tropical Atlantic and their remote impacts; relationships between tropical and mid/high latitude variability; air-sea interaction along the Gulf Stream and its influence on cyclones and storm track evolution; variability in the Benguela upwelling region; influence of Agulhas leakage on the South Atlantic; coupled climate models biases in the region and their impacts; AMOC and long-term climate change.
Presentation FormatOral and Poster presentation
Co-Sponsoring Societies
(Society Members)
The Oceanographic Society of Japan
Invited AuthorsThe fixed information of invited authors will be published on March 14.Click HERE to view the Tentative Invited Authors List. The list will be updated sequentially by March 13.