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| Titel |
Sea Surface Salinity structure of the meandering Gulf Stream revealed by SMOS sensor |
| VerfasserIn |
Nicolas Reul, Bertrand Chapron, Tong Lee, Craig Donlon, Jaqueline Boutin, Gael Alory |
| 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 |
250089892
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| Publikation (Nr.) |
 EGU/EGU2014-4106.pdf |
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| Zusammenfassung |
| Measurements from the SMOS satellite acquired over year 2012 in the western North
Atlantic are used to reveal the evolution of the sea surface salinity (SSS) structure of the
meandering Gulf Stream with an unprecedented space and time resolution. Combined with in
situ surface and profile measurements, satellite-derived surface currents, sea surface height
(SSH), surface temperature (SST), and Chlorophyll (Chl) data, SMOS SSS observations are
shown to help better delineating meanders pinching off from the current to form well
identified salty (warm) and fresh (cold) core Gulf Stream rings. A covariance analysis at two
distant locations along the separated Gulf stream path (south of Nova Scotia and in the Gulf
stream extension) reveals a systematically higher correlation between SSS and sea-level
variability than between SST and SSH during the warmer half of the year. In the
North Western Atlantic domain [75°W-40°W;30°N-50°N], Chl concentration
is also found to significantly depend on the SSS as SST increases above 20°C. |
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