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| Titel |
Intrinsic variability of the Subantarctic Front in the southwestern Atlantic: a model study |
| VerfasserIn |
Giovanni Sgubin, Stefano Pierini, Henk A. Dijkstra |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250088956
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| Publikation (Nr.) |
 EGU/EGU2014-3136.pdf |
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| Zusammenfassung |
| A sigma-coordinate ocean model implemented in a wide area of the Southern Ocean and forced by steady climatological winds is used to analyze the variability of the Subantarctic Front in the southwestern Atlantic. The low-frequency variability yields regime shifts on an interannual time scale in the Argentine Basin connecting an active and a collapsed Zapiola Anticyclone. The high-frequency variability, analyzed through a wavelet analysis, presents complex patterns composed of mesoscale eddies and topographic Rossby waves. Low- and high-frequency indices introduced to characterize the variability reveal possible mechanisms of mutual interactions. |
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