Mesoscale modeling of aeolian dust emission during the BoDEx 2005 experiment

Bouet, Christel, Cautenet, Guy, Washington, Richard, Todd, Martin C, Laurent, Benoit, Marticorena, Béatrice and Bergametti, Gilles (2007) Mesoscale modeling of aeolian dust emission during the BoDEx 2005 experiment. Geophysical Research Letters, 34 (7). L07812. ISSN 0094-8276

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Abstract

The Bodele depression (Northern Chad) is believed to be the single largest source for the Saharan dust transported over the Atlantic Ocean, especially that emerging in the Gulf of Guinea in boreal winter. During the Bodele Dust Experiment 2005 (BoDEx 2005), which was performed in February-March 2005, a severe dust event was observed and some of its main characteristics (surface wind, dust concentrations, radiation) were recorded. This paper tests the capability of a mesoscale model coupled online with a dust production model (DPM) to reproduce the small scale features associated to this dust event. These simulations clearly show that a spatial resolution of 10 km x 10 km is required to reproduce satisfactorily the observed surface winds and the main characteristics of the dust plume.

Item Type: Article
Schools and Departments: School of Global Studies > Geography
Depositing User: Martin Todd
Date Deposited: 06 Feb 2012 15:14
Last Modified: 04 Apr 2012 11:55
URI: http://sro.sussex.ac.uk/id/eprint/11192
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