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The Influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf Circulation : Volume 7, Issue 2 (20/04/2010)

By Matano, R. P.

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Book Id: WPLBN0003987803
Format Type: PDF Article :
File Size: Pages 35
Reproduction Date: 2015

Title: The Influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf Circulation : Volume 7, Issue 2 (20/04/2010)  
Author: Matano, R. P.
Volume: Vol. 7, Issue 2
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Piola, A. R., Palma, E. D., & Matano, R. P. (2010). The Influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf Circulation : Volume 7, Issue 2 (20/04/2010). Retrieved from

Description: College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon, USA. The oceanic circulation over the southwestern Atlantic shelf is influenced by large tidal amplitudes, substantial freshwater discharges, high wind speeds and – most importantly – by its proximity to two of the largest western boundary currents of the world ocean: the Brazil and Malvinas currents. This review article aims to describe the dynamical processes controlling the interaction between the shelf and the deep-ocean. The discussion is focused on two broad regions: the South Brazil Bight to the north, and Patagonia to the south. The exchanges between the Brazil Current and the South Brazil Bight are characterized by the intermittent development of eddies and meanders of the Brazil Current at the shelfbreak. However, it is argued that this is not the only – nor the most important – influence of the Brazil Current on the shelf. Numerical simulations show that the thermohaline structure of the South Brazil Bight can be entirely ascribed to steady state, bottom boundary layer interactions between the shelf and the Brazil Current. The Malvinas Current does not show the development of eddies and meanders, but its influence on the Patagonian shelf is no less important. Models and observations indicate that the Malvinas Current not only controls the shelfbreak dynamics and cross-shelf exchanges but also the circulation in the shelf's interior.

The influence of the Brazil and Malvinas Currents on the southwestern Atlantic shelf circulation

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