IngentaConnect Article: Saharan dust: sources and trajectories

Authors: Middleton N.J. ¹; Goudie A.S. ²

Source: Transactions of the Institute of British Geographers, June 2001, vol. 26, no. 2, pp. 165-181(17)

Abstract:

The Sahara is the world’s largest source of aeolian desert dust, but precise information on specific sources of this material is poor and sometimes contradictory. This paper uses daily data from the Total Ozone Mapping Spectrometer (TOMS) for 1999 to identify source areas for major dust events and their trajectories of long-range transport. Two major source areas are identified: the Bodélé depression and an area covering eastern Mauritania, western Mali and southern Algeria. Both of these major dust sources are primarily driven by natural factors since they are little affected by anthropogenic activities.

Keywords: Sahara; desert dust; Total Ozone Mapping Spectrometer (TOMS) dust sourc; long-range transport

Language: English

Document Type: Research article

Affiliations: 1: School of Geography and the Environment, University of Oxford, Oxford OX1 3TB, UK email: nicholas.middleton@geog.ox.ac.uk 2: School of Geography and the Environment, University of Oxford, Oxford OX1 3TB, UK email: andrew.goudie@geography.oxford.ac.uk

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