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| Titel |
Impacts of Hurricane Igor on the mixed-layer depth and phytoplankton bloom over the Grand Banks |
| VerfasserIn |
G. Han, Z. Ma, N. Chen |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250067577
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| Zusammenfassung |
| In this study we used satellite observations as well as in situ data to investigate the changes of
sea surface temperature, mixed-layer depth and chlorophyll concentration over the Grand
Banks of Newfoundland with the passage of Hurricane Igor on September 21-22, 2010. The
satellite data indicate a salient decline (6 oC) of the sea surface temperature and a significant
increase (0.8 mg/m3) of phytoplankton concentration after the passage of the hurricane. The
temperature decrease was supported by the buoy measurements. In situ density profiles show
the mixed-layer depth increased from 18 to 60 m. The phytoplankton bloom is thought to be
triggered by the entrainment of the mixed-layer deepening due to the strong wind
mixing and also by the upwelling associated with the cyclonic wind stress curl. |
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