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(Article of periodic en Anglais - 2004)

Document title

Modelling transverse dunes

Authors(s) and Affiliation(s)

SCHWÄMMLE V. ; HERRMANN H. ;

Abstract

Transverse dunes appear in regions of mainly unidirectional wind and high sand availability. A dune model is extended to two-dimensional calculation of the shear stress. It is applied to simulate dynamics and morphology of three-dimensional transverse dunes. In the simulations they seem to reach translational invariance and do not stop growing. Hence, simulations of two-dimensional dune fields have been performed. Characteristic laws were found for the time evolution of transverse dunes. Bagnold's law of the dune velocity is modified and reproduced. The interaction between transverse dunes led to the interesting conclusion that small dunes can travel over bigger ones

Source

Article of periodic

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

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

Millesime : 2004, vol. 29, no6 [pp. 769-784]

Bibliographic references : 31 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

INIST-CNRS, Cote INIST : 17355

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2005.
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