The Southern Ocean and Its Climate in CCSM4

The new Community Climate System Model, version 4 (CCSM4), provides a powerful tool to understand and predict the earth’s climate system. Several aspects of the Southern Ocean in the CCSM4 are explored, including the surface climatology and interannual variability, simulation of key climate water masses (Antarctic Bottom Water, Subantarctic Mode Water, and Antarctic Intermediate Water), the transport and structure of the Antarctic Circumpolar Current, and interbasin exchange via the Agulhas and Tasman leakages and at the Brazil-Malvinas Confluence. It is found that the CCSM4 has varying degrees of accuracy in the simulation of the climate of the Southern Ocean when compared with observations. This study has identified aspects of the model that warrant further analysis that will result in a more comprehensive understanding of ocean--atmosphere--ice dynamics and interactions that control the earth’s climate and its variability.

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Author Weijer, Wilbert
Sloyan, Bernadette
Maltrud, Mathew
Jeffery, Nicole
Hecht, Matthew
van Sebille, Erik
Wainer, Ilana
Landrum, Laura
Publisher UCAR/NCAR - Library
Publication Date 2012-04-15T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Topic Category geoscientificInformation
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Metadata Date 2023-08-18T18:46:41.515784
Metadata Record Identifier edu.ucar.opensky::articles:11905
Metadata Language eng; USA
Suggested Citation Weijer, Wilbert, Sloyan, Bernadette, Maltrud, Mathew, Jeffery, Nicole, Hecht, Matthew, van Sebille, Erik, Wainer, Ilana, Landrum, Laura. (2012). The Southern Ocean and Its Climate in CCSM4. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d7cc11c2. Accessed 23 June 2025.

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