Field evidence for surface-wave-induced instability of sand dunes

@article{Elbelrhiti2005FieldEF,
  title={Field evidence for surface-wave-induced instability of sand dunes},
  author={Hicham Elbelrhiti and P. Claudin and Bruno Andreotti},
  journal={Nature},
  year={2005},
  volume={437},
  pages={720-723}
}
Field studies of barchans—crescent-shaped dunes that propagate over solid ground under conditions of unidirectional wind—have long focused on the investigation of an equilibrium between sand transport by wind and the control of air flow by dune topography, which are thought to control dune morphology and kinematics. Because of the long timescale involved, however, the underlying dynamic processes responsible for the evolution of dune fields remain poorly understood. Here we combine data from a… CONTINUE READING