These crescent-shaped dunes are called ‘barchans” Barchans have a gentle slope on the upwind side and a much steeper slope on the lee side where horns or a notch often forms. Observing dunes on Mars can tell us how strong the winds are, as well as their direction.
ID:
ESP_076382_1350date: 12 November 2022
altitude: 254 km
https://uahirise.org/hipod/ESP_076382_1350
NASA/JPL-Caltech/University of Arizona
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