Sensitivity of desert dust emissions to model horizontal grid spacing during the Bodélé Dust Experiment 2005

Bouet, Christel, Cautenet, Guy, Bergametti, Gilles, Marticorena, Béatrice, Todd, Martin C and Washington, Richard (2012) Sensitivity of desert dust emissions to model horizontal grid spacing during the Bodélé Dust Experiment 2005. Atmospheric Environment, 50. pp. 377-380. ISSN 1352-2310

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Abstract

The impact of model horizontal grid spacing on meteorology and dust emissions in the Bodélé depression was investigated during the well-documented period of the Bodélé Dust Experiment 2005 (BoDEx 2005). Five horizontal grid spacing ranging from 100 km to 5 km were tested. The main conclusion of these sensitivity tests is that the meteorology of the Bodélé depression is quite insensitive to model horizontal grid spacing below 50 km in agreement with Todd et al.'s (2008b) results. Below 50 km, dust emissions also appear relatively insensitive to model mesh size, the influence of model horizontal grid spacing on dust emissions tending towards an asymptotic behavior as model mesh size is reduced.

Item Type: Article
Keywords: Bodélé depression, Mesoscale modeling;Model horizontal grid spacing; Desert dust
Schools and Departments: School of Global Studies > Geography
Subjects: Q Science
Depositing User: Martin Todd
Date Deposited: 01 Nov 2012 16:04
Last Modified: 06 Mar 2017 07:11
URI: http://sro.sussex.ac.uk/id/eprint/41578

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