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Explain Seif Dune

Seif Dune Explained!

Seif Dune Technical Terms

Seif Dune: A large, sharp-crested, elongated, longitudinal (linear) dune or chain of sand dunes, oriented parallel, rather than transverse (perpendicular), to the prevailing wind. If unmodified, the crest, in profile, commonly consists of a succession of curved slip faces produced by strong, but infrequent cross winds. A seif dune may be as much as 200 m high and from 400 m to more than 100 km long. Compare – longitudinal dune. GG and HP

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