crescentic dune

Some types of crescentic dunes move more quickly over desert surfaces than any other type of dune.

A crescentic dune with a star dune superimposed on its crest is the most common complex dune.

The remaining area is split equally between a western population of star dunes and an eastern set of transverse or crescentic dunes.

Two of the more clearly defined dune forms are the crescentic dunes, or barchans, and the long straight dunes, or seifs.

In another region known as Rock Garden, Sojourner encountered crescent moon-shaped dunes, which are similar to crescentic dunes on Earth.

Some of the larger crescentic dunes in the northeastern sand sea exhibit reversing crests, a transitional morphologic feature associated with star dunes.

The largest crescentic dunes on Earth, with mean crest-to-crest widths of more than 3 kilometres, are in China's Taklamakan Desert."

Felger [1980] estimated total vegetation cover at 15% in the star dunes and about 10% in the low transverse or crescentic dunes areas.

He recognized two basic dune types, the crescentic dune, which he called "barchan," and the linear dune, which he called longitudinal or "seif" (Arabic for "sword").

For example, there are ergs or fields of linear dunes, of crescentic dunes, of star dunes, and of parabolic dunes, and these dune arrays tend to have consistent orientations and sizes.