Crater Dunes - False Color

The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image. Today's false color image shows a large dune field on the floor of an unnamed crater in Noachis Terra. In this crater winds sweep across the dunes from the lower right corner of the image towards the left. In this color combination dark blue typically indicates dunes comprised of basaltic sands.