barchan dune
   A crescent-shaped dune with tips extending leeward (downwind), making this side concave and the windward (upwind) side convex. Barchan dunes tend to be arranged in chains extending in the dominant wind direction.
   Compare: parabolic dune.
   HP

Glossary of landform and geologic terms. 2013.

Look at other dictionaries:

  • Barchan — A barchan dune is an arc shaped sand ridge, comprising well sorted sand. This type of dune possesses two horns that face downwind, with the slip face (the downwind slope) at the angle of repose, or approximately 32 degrees. The upwind side is… …   Wikipedia

  • dune —    A low mound, ridge, bank or hill of loose, windblown, subaerially deposited granular material (generally sand), either barren and capable of movement from place to place, or covered and stabilized with vegetation, but retaining its… …   Glossary of landform and geologic terms

  • Düne — im Sossusvlei (Namibia) …   Deutsch Wikipedia

  • Barchan — Düne im Sossusvlei (Namibia) Düne mit aufgesetzten Rippeln in Marokko …   Deutsch Wikipedia

  • Dune du Pilat — Dune du Pyla Dune du Pyla 2004 …   Deutsch Wikipedia

  • Düne von Pila — Dune du Pyla Dune du Pyla 2004 …   Deutsch Wikipedia

  • Düne von Pilat — Dune du Pyla Dune du Pyla 2004 …   Deutsch Wikipedia

  • Düne von Pyla — Dune du Pyla Dune du Pyla 2004 …   Deutsch Wikipedia

  • barchan — [bär kän′, bär′kän΄] n. [Russ barkhan] a crescent shaped sand dune formed in certain inland desert regions, with the convex side facing into the wind …   English World dictionary

  • Dune — For other uses, see Dune (disambiguation). Erg Chebbi, Morocco …   Wikipedia

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