English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/26957
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Lee region of Gran Canaria

AuthorsBarton, Eric D. ; Basterretxea, Gotzon ; Flament, Pierre; Gay Mitchelson-Jacob, E.; Jones, Bethan; Arístegui, Javier; Herrera, Félix
Issue DateJul-2000
PublisherAmerican Geophysical Union
CitationJournal of Geophysical Research - Part C - Oceans 105(7): 173-193 (2000)
AbstractThe mountainous Canary Islands present obstacles to the trade winds and to the Canary Current flowing equatorward past them. In situ observations of hydrographic properties and surface winds south of Gran Canaria, together with advanced very high resolution radiometer and synthetic aperture radar images during 2 weeks in summer 1995 are analyzed. A cyclonic eddy shed from the west of the island drifted southwestward at 5 cm s−1, while the southeast coast was approached by an upwelling filament originating off NW Africa. A wind lee region bounded by intense horizontal shear lines had a weak return islandward wind in its center. The lee formed a triangular, diurnally varying, warm water pool with two sea surface temperature maxima separated by lower temperatures below the return wind. Shallow temperature stratification occurred behind the island in contrast to the uniform surface mixed layer in exposed regions. Upwelling and downwelling of 10 – 20 m d−1 were indicated on the cyclonic and anticyclonic sides of the lee region. In the SAR images, lines of strong current shear along a temperature front between the cyclonic eddy and the upwelling filament were identifiable. However, the radar images were dominated by atmospheric phenomena, including mountain lee wave packets, windrows, and wind shear lines. Estimation of the wind field from the SAR backscatter intensity revealed complex structure and intensification on the edges of the warm lee.
Description21 páginas, 9 figuras.
Publisher version (URL)http://dx.doi.org/10.1029/2000JC900010
URIhttp://hdl.handle.net/10261/26957
DOI10.1029/2000JC900010
ISSN0148-0227
Appears in Collections:(IIM) Artículos
Files in This Item:
File Description SizeFormat 
jgr_00b.pdf2,63 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.