Rippled dune: sand ripples on a dune in Morocco (CC BY-SA 2.0/Rosino) If you go to a sandy desert or beach on a blustery day, you might see a range of topographic features created by the wind. Looking ...
Wind-driven sand is understood to create ripples on a centimeter scale and dunes spanning tens of meters, but so-called megaripples of intermediate size have remained puzzling. A theory of aeolian ...
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