Journal
EUROPEAN PHYSICAL JOURNAL B
Volume 28, Issue 3, Pages 321-339Publisher
SPRINGER
DOI: 10.1140/epjb/e2002-00236-4
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Almost fifty years of investigations of barchan dunes morphology and dynamics is reviewed, with emphasis on the physical understanding of these objects. The characteristic quantities measured on the field (shape, size, velocity) and the physical problems they rise are presented. Then, we review the dynamical mechanisms explaining the formation and the propagation of dunes. In particular a complete and original approach of the sand transport over a flat sand bed is proposed and discussed. We conclude on open problems by outlining future research directions.
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