Large-Scale, Low-Amplitude Bedforms (Chevrons) in the Selima Sand Sheet, Egypt

Landsat images of the Selima sand sheet in southewestern Egypt display alternating light and dark chevron-shaped patterns that occur downwind from low scarps and major dune fields. Images acquired between 1972 and 1988 indicate that these features move as discrete bedforms at a rate of up to 500 met...

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