Wind Etching

Scaled Image

Image Credit: NASA/JPL/ASU

About this image

This VIS image is located near Zephyria Planum. Winds of two different directions have excavated a poorly cemented surface into linear ridge features called yardangs. Examining the structure of the ridges, it appears that winds first blew from the upper left of the image. Then perhaps after a change in climate, winds blew toward the upper right, carving a new pattern on top of the older one. The ridges are not perpendicular, but intersect at a wider angle.

Please see the THEMIS Data Citation Note for details on crediting THEMIS images. 


Image ID: 
V72496028 (View data in Mars Image Explorer)
2018-04-18 12:20
Fri, 2018-07-27
1024 pixels (18 km)
3648 pixels (65 km)
0.017891 km/pixel
0.0180262 km/pixel


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