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  • 1
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    The Influence of the Agulhas Current on the Adjacent Coastal Ocean: Possible Impacts of Climate Change (1996)
    Elsevier
    In:  Journal of Marine Systems, 7 . pp. 321-336.
    Details
    Publication Date: 2017-06-26
    Description: The dynamics of the coastal ocean along the southeastern coast of Africa is dominated by a strong and intense western boundary current, the Agulhas Current. With a near-uniform, narrow continental shelf and a steep shelf slope that stabilizes this current, the trajectory of the Agulhas exhibits great stability. The only substantial perturbation occurs with the irregular passage of a Natal Pulse, a soliton meander. The initiation of this meander at the Natal Bight is due to a barotropic instability when the intensity of the landward border of the current exceeds a certain threshold value. This may come about with natural fluctuations in the current or with the adsorption of deep-sea eddies onto the current. Under a climate change scenario of altered wind stress curl over the South Indian Ocean it is conceivable that the threshold for the triggering of a Natal Pulse will occur more frequently. This will lead to a situation where the current axis on average lies further offshore. The possible consequences of such a situation on the rainfall of the coast, on the ecology of estuaries and the coastal ocean, and on the socio-economics of the region is discussed.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1016/0924-7963(95)00010-0
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 2
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    German research on the Agulhas Current system between the World Wars : a lost scientific achievement (2005)
    Deutsches Meeresmuseum
    In:  Historisch-Meereskundliches Jahrbuch, 11 . pp. 73-98.
    Details
    Publication Date: 2017-01-18
    Description: The greater Agulhas Current system is currently the centre of substantial international nterest because of its perceived role in the inter-ocean exchange of water between the South Indian Ocean and the South Atlantic Ocean. This exchange forms a fundamental link in the global thermohaline circulation. German researchers paid considerable attention to the circulation in the South West Indian Ocean during the 1930s and they can be considered to have been the contemporary experts on this region. More than 30 scientific papers or books on the subject were produced by German oceanographers between 1929 and 1941; a major achievement at the time. After the Second World War this knowledge was used in a few major texts, but shortly afterwards largely disappeared from sight. By the time of the International Indian Ocean Expedition in the 1960s no further mention was made of this preceding German work. Using a bibliographic investigation we here track the manner in which this knowledge was lost and speculate on its causes.
    Type: Article , NonPeerReviewed
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - without review
  • 3
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    The exchange of water between the South Indian and the South Atlantic (1996)
    Springer
    In:  In: The South Atlantic: Present and Past Circulation. , ed. by Wefer, G., Berger, W. H., Siedler, G. and Webb, D. J. Springer, Berlin, Heidelberg, pp. 125-162.
    Details
    Publication Date: 2020-01-10
    Type: Book chapter , PeerReviewed
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    OceanRep: Book chapter
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