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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Airflow up the stoss slope of sand dunes: limitations of current understanding

Special Issue. Response of aeolian processes to global change

Auteur(s) et Affiliation(s)

FRANK, A.J.
Dept. of Geological Sciences, University of Texas, Austin, TX, Etats-Unis
LANCASTER, N.
Desert Research Institute, Quaternary Sciences Center, Reno, NV, Etats-Unis


Description :
For this study, airflow over sand dunes (at Padre Island, Texas, The Algodones, California, and White Sands, New Mexico) was measured in order to discern the effect of slope on airflow profiles and the significance of this effect on calculated rates of sediment transport. The results of this study, which largely confirm some earlier work regarding the structure of airflow up dunes, srtrongly emphasize the inadequacies of traditional approaches to the determination of shear stress on duunes and have implications for theoretical models that have been developed for saltation.


Type de document :
Congrès

Source :
Workshop on Response of Aeolian Processes to Global Change, Zzyzx, Etats-Unis, 1994-03-24, Geomorphology (Amsterdam), issn : 0169-555X, 1996, vol. 17, n°. 1-3, p. 47-54, Collation : Illustration, Références bibliographiques : 31 ref.

Date :
1996

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier

Langue :
Anglais
Droits :
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