The role of streamline curvature in sand dune dynamics: evidence from field and wind tunnel measurements

Special Issue. Response of aeolian processes to global change

Auteur(s) et Affiliation(s)

WIGGS, G.F.S.

Dept. of Geography, University of Sheffield, Sheffield, Royaume-Uni

LANCASTER, N.

Desert Research Institute, Quaternary Sciences Center, Reno, NV, Etats-Unis

Description :
Field measurements on an unvegetated, 10 m high barchan dune in Oman are compared with measurements over a 1:200 scale fixed model in a wind tunnel. This particularly concerns the determination of the pattern of shear stress on the windward slope. The collected data and comparisons are used to elucidate the nature of dune dynamics and methods of research. Using the occurrence of streamline curvature as a starting point, a new 2-D model of dune dynamics is deduced.

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. 29-46, Collation : Illustration, Références bibliographiques : 56 ref.

Date :
1996

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

Langue :
Anglais