Drop Dune

Living reference work entry
DOI: https://doi.org/10.1007/978-1-4614-9213-9_121-2

Definition

Modified wedge dune extended longitudinally in the resultant transport direction.

Formation

Drop dunes form in areas where sand supply is low and subject to a bimodal wind regime where the directions of the winds differ by >120° (Parteli and Herrmann 2007; Parteli et al. 2009a; Reffet et al. 2010). It originates from a wedge dune whose downwind tail elongates, leading to a longitudinal dune (Parteli et al. 2009a; Fig. 1).

Keywords

Rounded 
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References

  1. Parteli EJR, Herrmann HJ (2007) Saltation transport on Mars. Phys Rev Lett 98:198001Google Scholar
  2. Parteli EJR, Durán O, Tsoar H, Schwämmle V, Herrmann HJ (2009a) Dune formation under bimodal winds. Proc Natl Acad Sci U S A 106:22085–22089Google Scholar
  3. Parteli EJR, Almeida MP, Durán O, Andrade JS Jr, Herrmann HJ (2009b) Sand transport on Mars. Comput Phys Commun 180:609–611Google Scholar
  4. Reffet E, Courrech du Pont S, Hersen P, Douady S (2010) Formation and stability of transverse and longitudinal sand dunes. Geology 38:491–494Google Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Institute for Multiscale SimulationUniversity of Erlangen-NurembergErlangenGermany