English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/16538
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Contribution of upwelling filaments to offshore carbon export in the subtropical Northeast Atlantic Ocean

AutorÁlvarez-Salgado, Xosé Antón ; Arístegui, Javier; Barton, Eric D. ; Hansell, Dennis A.
Fecha de publicaciónmay-2007
EditorAmerican Society of Limnology and Oceanography
CitaciónLimnology and Oceanography 52(3): 1287-1292 (2007)
ResumenRevisiting previously published data we show that upwelling filaments off Iberia and NW Africa export to the offshore system, largely as dissolved organic matter (DOM), from 35% to 58% of the net community production generated in the coastal upwelling systems. Transport by filaments accounts for 2.5 to 4.5 times the offshore carbon export driven by Ekman transport. The fate of this carbon is unknown, although conservative mass balance analysis in the subtropical Northeast Atlantic region suggests that <16% of the exported carbon may be respired in the coastal transition zone (CTZ). Thus, DOM exported by the filaments cannot fully account for the previously reported metabolic imbalance (i.e., net heterotrophy) of the surface waters of the CTZ. The remainder of exported organic matter is transported to and accumulated in the subtropical gyre, where high surface DOM concentrations have been reported. Since filaments are ubiquitous features in all coastal transition zone systems, they must represent a significant flux of carbon to the open ocean, which should be considered in global biogeochemical models.
Descripción6 pages, 1 figure, 2 tables
Versión del editorhttp://www.aslo.org/lo/toc/vol_52/issue_3/1287.pdf
URIhttp://hdl.handle.net/10261/16538
ISSN0024-3590
Aparece en las colecciones: (IIM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Alvarez-Salgado et al_LO_2007_Digital CSIC.pdf181,27 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.