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G. F. S. Wiggs and C. M. Weaver Turbulent flow structures and aeolian sediment transport over a barchan sand dune Geophysical Research Letters 39

Article first published online: 13 MAR 2012 | DOI: 10.1029/2012GL050847

Key Points

  • The quadrants of turbulence are affected by topographic forcing over a dune
  • Sweeps and ejections are prevalent at the toe; outward interactions at the crest
  • Most sand transport events are associated with sweeps and outward interactions

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