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  • 标题:A late Pleistocene dataset of Agulhas Current variability
  • 本地全文:下载
  • 作者:Margit H. Simon ; Martin Ziegler ; Stephen Barker
  • 期刊名称:Scientific Data
  • 电子版ISSN:2052-4463
  • 出版年度:2020
  • 卷号:7
  • 期号:1
  • 页码:1-12
  • DOI:10.1038/s41597-020-00689-7
  • 语种:English
  • 出版社:Nature Publishing Group
  • 摘要:The interocean transfer of thermocline water between the Indian and the Atlantic Oceans known as ‘Agulhas leakage’ is of global signifcance as it infuences the Atlantic Meridional Overturning Circulation (AMOC) on diferent 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 proximalAgulhas Current region dating beyond the last glacial cycle prevents elucidation of its role in regional and wider global climate changes. This is the frst 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.
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