Original Articles

An Agulhas Current intrusion into Algoa Bay during August 1988

Published in: South African Journal of Marine Science
Volume 14, issue 1, 1994 , pages: 47–57
DOI: 10.2989/025776194784286914


During August 1988, warm water from a plume originating in an Agulhas Current meander, and cold water from an eddy nested in the offshore deflection of the meander, penetrated over the adjacent continental shelf and into Algoa Bay. The intrusion occurred during strong to gale force westerly winds. Results indicate that, while a meander in the Agulhas Current caused Agulhas water to move initially onto the shelf, it was wind-forcing that drove the water farther over the shelf and into Algoa Bay. After the subsidence of the gale, but still during westerly winds, an anticlockwise circulation was observed in Algoa Bay. Possible causes of this circulation pattern are discussed.

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