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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Dunefield activity and interactions with climatic variability in the southwest Kalahari Desert

Auteur(s) et Affiliation(s)

BULLARD, J.E.
Sheffield Centre for International Drylands Research, Dept. of Geography, University of Sheffield, Sheffield, Royaume-Uni


Description :
An analysis is undertaken of the temporal variability of climatic parameters that influence dunefield aeolian activity. Data from 7 meteorological stations in the southwestern Kalahari Desert are used, spanning the period 1960-1992. Erosivity is considered through analysis of wind data, and erodibility through analysis of precipitation and potential evapotranspiration, which together influence dune surface plant growth. The data are integrated using Lancaster's mobility index which provides a measure of potential dune surface sand transport.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1997, vol. 22, n°. 2, p. 165-174, Collation : Illustration, Références bibliographiques : 30 ref.

Date :
1997

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais
Droits :
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