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| Titel |
Wind-induced temperature anomalies in the tropical and subtropical North Atlantic Ocean in 2010 |
| VerfasserIn |
Charles Troupin, Francisco Machín |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250051200
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| Zusammenfassung |
| In 2010, the tropical and subtropical North Atlantic displayed anomalously high
temperatures, with values seldom observed during the last decades. In situ and remote
sensing data are used to evaluate horizontal, vertical and temporal extensions of the
anomalies.
The repercussions on the seasonal evolution of the mixed layer are examined; in
particular, it is shown that the northwest Africa coastal upwelling is significantly weakened in
comparison to previous years. The consequences on the biological variables are examined by
means of satellite-derived measurements.
A simple mechanism related to changes in wind intensity is proposed in order to explain
our observations. The wind weakening coincides with a strongly negative value of the North
Atlantic Oscillation index. |
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