(Article of periodic en Anglais - 2013)

Document title

Secondary flow deflection in the lee of transverse dunes with implications for dune morphodynamics and migration

Authors(s) and Affiliation(s)

WALKER I.J. (1) ; SHUGAR D.H. (1) ;
(1) Dept. of Geography , Univ., Victoria, CANADA


Measurements of lee-side airflow response from an extensive array of meteorological instruments combined with smoke and flow streamer visualization is used to examine the development and morphodynamic significance of the lee-side separation vortex over closely spaced transverse dune ridges. A differential deflection mechanism is presented that explains the three-dimensional pattern of lee-side airflow structure for a variety of incident flow angles. The results document the three-dimensional nature of flow and sand transport over transverse dunes and provide empirical evidence for an oblique migration model


Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2013, vol. 38, no14 [pp. 1642-1654]

Bibliographic references : 2 p.

Collation : 11 fig., 1 tabl.



INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3398

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
Refdoc record number (ud4) : 28424330 : Permanent link - XML version
Powered by Pxxo