A field study of mean and turbulent flow characteristics upwind, over and downwind of barchan dunes

Auteur(s) et Affiliation(s)

BADDOCK, M.C.

Wind Erosion and Water Conservation Research Unit, United States Dept. of Agriculture - Agricultural Research Service, Lubbock, Etats-Unis

WIGGS, G.F.S.

School of Geography and the Environment, Univ., Oxford, Royaume-Uni

LIVINGSTONE, I.

School of Science and Technology, Univ., Northampton, Royaume-Uni

Description :
The aims of this paper are to present detailed measurements of turbulence (represented here by Reynold stresses) for 2 exemplar barchans in the Skeleton Coast dunefield, Namibia; to assess the effect on turbulent stress estimates of data correction by rotation to flow streamlines; to consider the implications of these flow data for the geomorphological development of barchan dunes; to compare the results from this study with previous investigations in the field, in wind tunnels and in software models.

Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2011, vol. 36, n°. 11, p. 1435-1448, nombre de pages : 14, Références bibliographiques : 2 p.

Date :
2011

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

Langue :
Anglais