A Network of Dust Devil Tracks
A Network of Dust Devil Tracks
ESP_023734_1270  Science Theme: Aeolian Processes
The entire area in this image has been recently crossed by multiple dust devils. This area was probably initially covered by a layer of bright dust.

Dust devils (small tornado-like vorticies common in many places on Mars) then lifted the dust into atmospheric suspension as they moved along the surface, exposing darker, less dusty material below. Some areas in this image have more boulders than others, but the dust devil tracks cross them without being much affected.

Written by: Ken Herkenhoff  (28 September 2011)
Acquisition date
19 August 2011

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
249.8 km (155.2 miles)

Original image scale range
50.0 cm/pixel (with 2 x 2 binning) so objects ~150 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
56°, with the Sun about 34° above the horizon

Solar longitude
347.4°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  51.1°
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Merged IRB
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IRB color
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Black and white
map-projected  (90MB)
non-map           (157MB)

IRB color
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non-map           (130MB)

Merged IRB
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Merged RGB
map-projected  (216MB)

RGB color
non map           (124MB)
B&W label
Color label
Merged IRB label
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IRB: infrared-red-blue
RGB: red-green-blue
About color products (PDF)

Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images

All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:

NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA’s Science Mission Directorate, Washington. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.