Longitudinal dunes on Mars: Relation to current wind regimes

Details Longitudinal dunes on Mars: Relation to current wind regimes Longitudinal dunes on Mars: Relation to current wind regimes

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jgr...100.5381l&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), Vol. 100, no. E3, p. 5381-5395

Physics

26

Dunes, Longitudinal Waves, Mars Surface, Sands, Wind Effects, Mars Photographs, Topology, Wind Shear, Wind Velocity

Scientific paper

Longitudinal dunes are extremely rare on Mars, but constitute a substantial fraction of terrestrial desert dunes. We report finding isolated examples of longitudinal dunes on Mars and relate their occurence to expected sand transport regimes. Terrestrial longitudinal dunes form in bimodal and multimodal transport regimes. General circulation models and streak data indicate that bimodal and multimodal transport of sand should be very rare on Mars. Thus the dearth of longitudinal dunes on Mars is consistant with their apparent formation conditions on Earth.

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