Tag Archives: wind streaks

THEMIS: Dunes, dust devil tracks, and wind streaks on northern polar lowlands

THEMIS Image of the Day, June 21, 2017. Do you see what I see? Look out, a barrage of bullets is headed our way! (THEMIS Art #130) More THEMIS Images of the Day by geological topic.

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Tornado-like winds from impacts scoured surface

Plumes of vapor generated by ancient impacts on Mars created tornado-like winds possibly swirling at more than 500 miles per hour, which explain mysterious streaks seen near large impact craters on the Martian surface. In looking at NASA images of … Continue reading

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THEMIS: Grazing light at sunrise on lava flows

THEMIS Image of the Day, January 26, 2017. The grazing light of sunrise, coming from the right, reveals edges and other details in lava flows of Daedalia Planum. These flows come from Arsia Mons volcano. A windstreak is visible at … Continue reading

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THEMIS: Wind streaks on Syrtis Major Planum

THEMIS Image of the Day, January 2, 2017. Today’s false color image shows several wind streaks in Syrtis Major Planum. Here the winds have blown from the northeast (upper right). As the wind passes over craters, its flow becomes turbulent, … Continue reading

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THEMIS: Windstreak on Daedalia Planum

THEMIS Image of the Day, October 26, 2016. The “tail” behind the crater at the top of this VIS image is called a windstreak. This feature is formed by winds blowing over, in, and around the crater. Turbulence in the … Continue reading

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THEMIS: Wind streaks on Daedalia Planum

THEMIS Image of the Day, September 23, 2016. This VIS image shows part of Daedalia Planum as well as several windstreaks. There is a large streak in the bottom half of the frame from a large crater off the image … Continue reading

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THEMIS: Syrtis Major wind streaks in false color

THEMIS Image of the Day, September 9, 2016. Today’s false color image shows part of Syrtis Major Planum, including several wind streaks that show winds are blowing from the northeast (upper right).  The THEMIS camera contains 5 filters. The data from … Continue reading

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THEMIS: Geological jumble in Terra Sirenum

THEMIS Image of the Day, September 1, 2016. Today’s false color image shows part of the plains of Terra Sirenum near Sirenum Fossae. The THEMIS camera contains 5 filters. The data from different filters can be combined in mulitple ways to … Continue reading

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THEMIS: Craters – false color

THEMIS Image of the Day, February 4, 2016. Today’s false color image shows a group of unnamed craters north of Fournier Crater. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways … Continue reading

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THEMIS: Wind streaks – false color

THEMIS Image of the Day, January 28, 2016. Today’s false color image shows a set of windstreaks located on Syrtis Major Planum east of Nili Patera. The color variation shows where wind action has removed or concentrated surface dust. The … Continue reading

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