THEMIS: Kasei Valles in false color

Kasei Valles, scoured by mighty floods (THEMIS_IOTD_20181022)THEMIS Image of the Day, October 22, 2018. This false-color VIS image shows a section of Kasei Valles. Kasei Valles is a huge outflow channel that drains from the higher elevations of Tharsis down into the lowlands of Chryse Planitia.

The landforms along the channel bed show evidence of giant floods — streamlined islands, scour marks, and now-dry waterfall cataracts — in ancient times. (See here for more on Kasei’s dry waterfalls.)

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.

See more THEMIS Images of the Day by geological subject.

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