English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/26308
Título

Exchange fluxes between the Ría de Vigo and the shelf: A bidirectional flow forced by remote wind

AutorGilcoto, Miguel ; Pardo, Paula C. ; Álvarez-Salgado, Xosé Antón ; Pérez, Fiz F. ; Pérez, Fiz F.
Palabras claveInverse model
Estuarine circulation
Shelf-estuary interaction
Coastal upwelling
Fecha de publicaciónjun-2007
EditorAmerican Geophysical Union
CitaciónJournal of Geophysical Research - Part C - Oceans 112: C06001 (2007)
ResumenIn the Ría de Vigo (western coast of the Iberian Peninsula) the seasonal pattern associated with shelf winds at these latitudes produces upwelling/downwelling episodes that affect the residual circulation. The aim of this paper is to go deeply into the interaction between remote winds and the dynamics of the ria aided by an inverse model. In the Galician r ias the box models (inverse models) have been developed from a two-dimensional (2-D) point of view since the classical baroclinic residual circulation in positive estuaries has a vertical distribution (freshwater outflow through the surface layer and inflow through the bottom layer). However, recent work in the Ría de Vigo has shown the existence of a 3-D residual circulation in the seaward region of the ria. During upwelling (downwelling) conditions a coastal jet enters (leaves) the ria through the northern mouth and leaves (enters) through the southern mouth. The inverse model developed in this paper is a 3-D kinematic box model based on tracer and volume balances with the constraint of nonnegative vertical exchange coefficients. The fluxes obtained confirm, during some periods, the 3-D residual circulation overlying the classical 2-D scheme. It is shown how the 3-D pattern affects the inner ria, causing transversal differences in the flow field. In addition, the model results have been helpful in the discussion of a possible barotropic bidirectional flow associated with remote winds. The results have set the basis for the existence of a bidirectional flow originated by a barotropic interaction with the shelf upwelling.
Descripción27 pages, 6 figures, 1 appendix.
Versión del editorhttp://dx.doi.org/10.1029/2005JC003140
URIhttp://hdl.handle.net/10261/26308
DOI10.1029/2005JC003140
ISSN0148-0227
Aparece en las colecciones: (IIM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Exchange fluxes between the Ría de Vigo and the shelf_ A bidirectional flow .pdf374,25 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


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