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A French name for a network of sand dunes that is found especially in the western Sahara. The basic unit of the network is a sinuous ridge, at right angles to the wind, made up of crescent-shaped sections which alternately face the wind (linguoid) and back the wind (barchanoid). Aklé patterns require winds from one direction and a large quantity of sand.

Aklé dune

Subjects: Ecology and Conservation — Earth Sciences and Geography.

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