Northern plains in false color (THEMIS_IOTD_20190412)

Today's false-color VIS image is located in the plains between Chryse and Acidalia Planitias.

 

Dark blue tones in this false color combination are usually created by basaltic sands. There appears to be surface sands in the middle of the image. The "orange" tail behind the crater towards the top of the image is created by wind action.

 

Wind will both erode and deposit fine materials. The wind tail is the downward side of the crater. These features are termed windstreaks, and they help to understand the direction of wind.

 

Both the windstreak and the surface sands indicate a dusty/sandy region confined to the central part of this image.

 

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.

 

This martian scene spans 19 x 290 kilometers (12 x 180 miles). To see where on Mars this area lies, and to download high-resolution versions of the image, go to themis.asu.edu/zoom-20190412a

 

See the Red Planet Report at redplanet.asu.edu for updates on Mars research and exploration. For more about Mars geology, check out the Mars-ePedia: marsed.asu.edu/marsepedia

 

For the latest THEMIS Mars images as received by mission scientists, see themis.asu.edu/livefrommars. To learn more about the THEMIS camera and its Mars images, see themis.asu.edu.

 

This image is in the public domain and may be republished free of charge. If used, please credit it as NASA/JPL-Caltech/Arizona State University.

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