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    Solitary wave behavior in sand dunes observed from space

    Vermeesch, Pieter (2011) Solitary wave behavior in sand dunes observed from space. Geophysical Research Letters 38 (22), ISSN 0094-8276.

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    Abstract

    Although the dynamics of individual barchan dunes are well understood, their interactions are the subject of ongoing scientific interest and debate. Numerical and analog model predictions of shape-preserving binary dune collisions have been hard to test due to the long timescales over which such processes typically occur. This paper documents ten binary dune collisions in a 45-year time sequence of satellite images from the Bodélé Depression in Chad. The observations confirm that when two barchan dunes collide, a transfer of mass occurs so that one dune appears to travel through the other unscathed, like a solitary wave.

    Metadata

    Item Type: Article
    Additional Information: Africa, Sahara, eolian processes, geomorphology, remote sensing, sand dunes
    School: Birkbeck Schools and Departments > School of Science > Earth and Planetary Sciences
    Depositing User: Administrator
    Date Deposited: 01 Dec 2014 15:52
    Last Modified: 11 Oct 2016 12:01
    URI: http://eprints.bbk.ac.uk/id/eprint/11178

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