DSpace
 

Researchspace >
General science, engineering & technology >
General science, engineering & technology >
General science, engineering & technology >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/3995

Title: Ocean variability over the Agulhas Bank and its dynamical connection with the southern Benguela upwelling system
Authors: Blanke, B
Penven, P
Roy, C
Chang, N
Kokoszka, F
Keywords: Agulhas Bank
Southern Benguela
Lagrangian
Seasonal variability
Time variability
National Centers for Environmental Prediction
NCEP
Issue Date: Dec-2009
Publisher: American Geophysical Union
Citation: Blanke, B, Penven, P et al. 2009. Ocean variability over the Agulhas Bank and its dynamical connection with the southern Benguela upwelling system. Journal of Geophysical Research Oceans, Vol. 114(C12028), pp 1-15
Abstract: This study analyzes the oceanic pathway connecting the Agulhas Bank to the southern Benguela upwelling system by means of a quantitative Lagrangian interpretation of the velocity field calculated by a high-resolution numerical simulation of the ocean around the southwestern tip of Africa. The regional ocean model is forced with National Centers for Environmental Prediction surface winds over 1993–2006 and offers a relevant numerical platform for the investigation of the variability of the water transferred between both regions, both on seasonal and intraseasonal time scales. We show that the intensity of the connection fluctuates in response to seasonal wind variability in the west coast upwelling system, whereas intraseasonal anomalies are mostly related to the organization of the eddy field along the southwestern edge of the Agulhas Bank. Though the study only considers passive advection processes, it may provide useful clues about the strategy adopted by anchovies in their selection of successful spawning location and period. The pathway under investigation is of major interest for the ecology of the southern Benguela upwelling system because it connects the spawning grounds on the Agulhas Bank with the nursery grounds located on the productive upwelling off the west coast.
Description: Copyright: 2009 American Geophysical Union
URI: http://www.ifremer.fr/docelec/doc/2009/publication-7388.pdf
http://hdl.handle.net/10204/3995
Appears in Collections:Coastal and marine systems
General science, engineering & technology

Files in This Item:

File Description SizeFormat
Blanke_2009.pdf1.13 MBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback