Question

What is the meaning of barchans?

Answer 1

Barchans usually occur as groups of isolated dunes and may form chains that extend across a plain in the direction of the prevailing wind. Barchans and megabarchans may coalesce into ridges that extend for hundreds of kilometers.

Answer 2

a crescent-shaped shifting sand dune, as found in the deserts of Turkestan is known as barchans.