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African Monsoonal Precipitation Modulated by Interhemispheric Temperature Gradients

  • Stefan Mulitza (a1) and Carsten Rühlemann (a1)

The deglacial pattern of a high-resolution alkenone-derived temperature record from the southeastern tropical Atlantic was compared with one from the northeastern subtropical Atlantic. During Termination 1b, surface waters in the eastern tropical Atlantic (6°S) reached modern temperatures, whereas those in the subtropical northeastern Atlantic (21°N) were still considerably colder than today. This asymmetrical warming may reflect meltwater-induced reductions in the northward heat transport and helps to explain rapid changes in monsoonal precipitation over Africa during the early Holocene.

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Quaternary Research
  • ISSN: 0033-5894
  • EISSN: 1096-0287
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