Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/48670
Title: Seasonal and temporal study of the northwest African upwelling system
Authors: Marcello, Javier 
Hernández-Guerra, Alonso 
Eugenio, Francisco 
Fonte, Abenauara
UNESCO Clasification: 250616 Teledetección (Geología)
Keywords: Sea-Surface
Canary Current
Eastern Boundary
Transition Zone
Gran-Canaria, et al
Issue Date: 2011
Publisher: 0143-1161
Journal: International Journal of Remote Sensing 
Abstract: The upwelling index (UI) obtained from sea surface temperature (SST) images for the period 1987 2006 and remote sensing wind stress were used to analyse the features of the coastal upwelling region off northwest Africa. The seasonal distribution shows a persistent upwelling throughout the year from 20 degrees N to 33 degrees N, seasonal behaviour from 12 degrees N to south of 20 degrees N, and an almost total lack of upwelling throughout the year from 5 degrees N to 12 degrees N. The major centres of active upwelling are located around Cape Ghir, Cape Juby and Cape Blanc. The UI shows an intensification of the upwelling system off northwest Africa during the 20-year period while the alongshore wind stress remains almost stable. During this period, upwelled waters off Cape Blanc have increased their offshore spreading.
URI: http://hdl.handle.net/10553/48670
ISSN: 0143-1161
DOI: 10.1080/01431161003631576
Source: International Journal of Remote Sensing[ISSN 0143-1161],v. 32, p. 1843-1859
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