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  • 1
    Electronic Resource
    Electronic Resource
    Climatic controls on central African hydrology during the past 20,000 years (2005)
    [s.l.] : Nature Publishing Group
    Nature 437 (2005), S. 1003-1006 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Past hydrological changes in Africa have been linked to various climatic processes, depending on region and timescale. Long-term precipitation changes in the regions of northern and southern Africa influenced by the monsoons are thought to have been governed by precessional variations in summer ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature03945
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    Paper (German National Licenses)
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  • 2
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    Late Holocene slowdown of the Indian Ocean Walker circulation (2017)
    Nature Research
    In:  Nature Communications, 8 (1). Art.Nr. 1015.
    Details
    Publication Date: 2020-02-06
    Description: Changes in tropical zonal atmospheric (Walker) circulation induce shifts in rainfall patterns along with devastating floods and severe droughts that dramatically impact the lives of millions of people. Historical records and observations of the Walker circulation over the 20th century disagree on the sign of change and therefore, longer climate records are necessary to better project tropical circulation changes in response to global warming. Here we examine proxies for thermocline depth and rainfall in the eastern tropical Indian Ocean during the globally colder Last Glacial Maximum (19–23 thousand years ago) and for the past 3000 years. We show that increased thermocline depth and rainfall indicate a stronger-than-today Walker circulation during the Last Glacial Maximum, which is supported by an ensemble of climate simulations. Our findings underscore the sensitivity of tropical circulation to temperature change and provide evidence for a further weakening of the Walker circulation in response to greenhouse warming.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1038/s41467-017-00855-3
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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