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Near-surface structures in the Cape Ghir filament off Morocco ArchiMer
Hagen, E; Zulicke, C; Feistel, R.
A meso-scale CTD survey was conducted off Cape Ghir (31 degrees N) from 29 September to 3 October 1992, with the inspection of mass-field structures in the 300 dbar layer as its main objective, and relatively large tongue of cold surface water as the subject of investigation. This filament of upwelled water extends about 200 km seaward from the coastal zone of Morocco. Our CTD survey included two zonal transects 213 km in length, sampled synchronously by R/Vs Hudson along 31 degrees 30' N and A. v.Humboldt along 30 degrees 30' N. A meridional section followed the shelf edge at 10 degrees 10' W, and five zigzag sections were carried out above the Cape Ghir Plateau (CGP). Data resulting from an extended transect, sampled ten days earlier between 9 degrees...
Tipo: Text Palavras-chave: Coastal upwelling; Filament; Northwest Africa; Water mass; Eddy.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00096/20728/18365.pdf
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Seasonal and interannual changes in Intense Benguela Upwelling (1982-1999) ArchiMer
Hagen, E; Feistel, R; Agenbag, Jj; Ohde, T.
Monthly maps of remotely sensed sea surface temperatures derived from NOAA/AVHRR thermal images are used to describe changes in 'Intense Benguela Upwelling' during 1982-1999. The coastal area under investigation lies between 9-34degrees S and 8-20degrees E and the total area of cold water between the coast and the course of the 13 degreesC isotherm is considered to be an index of intense, active upwelling. It exhibits a decreasing trend over the study period of 18 years and some evidence for a quasi-cycle of about 27 months. Seasonal cycles are discussed for the total cold water area as well as for its mean alongshore and offshore extents. The main season of cold surface water was found to occur between July and September during the austral winter. It...
Tipo: Text Palavras-chave: Courant de Benguela; Upwelling côtier; Télédétection; Température de surface de la mer; Niño de Benguela; Benguela Current; Coastal upwelling; Remote sensing; Sea surface temperature; Benguela Nino.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/00322/43332/42895.pdf
Registros recuperados: 2
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