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The International Ocean Discovery Program, Expedition 361 scientific prospectus: South African climates (Agulhas LGM Density Profile)

Hall, Ian Richard, Hemming, Sidney R. and LeVay, Leah J. 2015. The International Ocean Discovery Program, Expedition 361 scientific prospectus: South African climates (Agulhas LGM Density Profile). [Technical Report]. International Ocean Discovery Program.. Available at: http://dx.doi.org/10.14379/iodp.sp.361.2015

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Abstract

The Agulhas Current is the strongest western boundary current in the Southern Hemisphere, transporting some 70 Sv of warm and saline surface waters from the tropical Indian Ocean along the East African margin to the tip of Africa. Exchanges of heat and moisture with the atmosphere influence southern African climates, including individual weather systems such as extratropical cyclone formation in the region and rainfall patterns. Recent ocean models and paleoceanographic data further point at a potential role of the Agulhas Current in controlling the strength and mode of the Atlantic Meridional Overturning Circulation (AMOC) during the Late Pleistocene. Spillage of saline Agulhas water into the South Atlantic stimulates buoyancy anomalies that act as a control mechanism on the basin-wide AMOC, with implications for convective activity in the North Atlantic and Northern Hemisphere climate.

Item Type: Monograph (Technical Report)
Date Type: Publication
Status: Published
Schools: Earth and Ocean Sciences
Subjects: Q Science > QE Geology
Publisher: International Ocean Discovery Program.
Last Modified: 07 Aug 2019 14:44
URI: http://orca.cf.ac.uk/id/eprint/76777

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