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Role of bathymetry in Agulhas Current configuration and behaviour - art. no. L23611 ArchiMer
Speich, Sabrina; Lutjeharms, J. R. E.; Penven, P; Blanke, Bruno.
The Agulhas Current forms an important link in the global ocean thermohaline circulation by its role in the interocean exchange of water south of Africa. This process of ring shedding at the current's retroflection is dependent on perturbations to its trajectory that are sensitive to bathymetry. These perturbations may furthermore force the current to intersect shallow regions resulting in substantial changes to its path. A number of other flow characteristics of the system have also been deemed to be influenced by bathymetry. How dependent is Agulhas Current behaviour therefore on the bottom topography? We have used a regional, primitive equation model for initial experimentation. Removing the Agulhas Bank leads to enhanced interocean flux, indicating its...
Tipo: Text Palavras-chave: Inter ocean exchange; Inter ocean flux; Thermohaline circulation; Southwest Africa; Agulhas current.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-2308.pdf
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