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A late Pleistocene dataset of Agulhas Current variability

Simon, Margit H., Ziegler, Martin, Barker, Stephen, van der Meer, Marcel T. J., Schouten, Stefan and Hall, Ian R. 2020. A late Pleistocene dataset of Agulhas Current variability. Scientific Data 7 (1) , 385. 10.1038/s41597-020-00689-7

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Abstract

The interocean transfer of thermocline water between the Indian and the Atlantic Oceans known as ‘Agulhas leakage’ is of global significance as it influences the Atlantic Meridional Overturning Circulation (AMOC) on different time scales. Variability in the Agulhas Current regime is key in shaping hydroclimate on the adjacent coastal areas of the African continent today as well as during past climates. However, the lack of long, continuous records from the proximal Agulhas Current region dating beyond the last glacial cycle prevents elucidation of its role in regional and wider global climate changes. This is the first continuous record of hydrographic variability (SST; δ18Osw) from the Agulhas Current core region spanning the past 270,000 years. The data set is analytical sound and provides a solid age model. As such, it can be used by paleoclimate scientists, archaeologists, and climate modelers to evaluate, for example, linkages between the Agulhas Current system and AMOC dynamics, as well as connections between ocean heat transport and Southern African climate change in the past and its impact on human evolution.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Earth and Ocean Sciences
Additional Information: This article is licensed under a Creative Commons Attribution 4.0 International License
ISSN: 2052-4463
Date of First Compliant Deposit: 17 November 2020
Date of Acceptance: 23 September 2020
Last Modified: 18 Nov 2020 09:45
URI: http://orca.cf.ac.uk/id/eprint/136424

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