Mots-clés
Barkhane Contrainte de cisaillement Domaine aride Dune Eolien Géomorphodynamique Littoral Modèle Namibie Namibie du Nord-Ouest Transport éolien Turbulence Aeolian features Aeolian transport Arid area Barchan Coastal environment Dune Earth surface processes Model Namibia North-western Namibia Shear stress Turbulence Barcán Campo árido Duna Eólico Geomorfodinámica Litoral Modelo Namibie Tensión de cizallamiento Transporte eólico TurbulenciaA 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
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)