Zigzag Channels
NASA/JPL/University of Arizona
Zigzag Channels
PSP_010749_1325  Science Theme: Seasonal Processes
Italian  Portuguese  Spanish 


800  1024  
1152  1280  
1440  1600  
1920  2048  
A large dune field, still partially covered with seasonal carbon dioxide frost, shows evidence of movement of dune material. When the changes took place is not known.

Channels carved on face of dunes are visible in this subimage.. Rather than going straight down the dune, the channels zigzag back and forth. The fluid or gas that carved the channel is an enigma. Older channels are filled in and ripples are visible there.

Written by: Candy Hansen   (21 January 2009)

Click to share this post on Twitter Click to share this post on Facebook Click to share this post on Google+ Click to share this post on Tumblr

 Image Products: All image links are drag & drop for HiView, or click to download
B&W: map projected  non-map

IRB color: map projected  non-map

Merged IRB: map projected

Merged RGB: map projected

RGB color: non-map projected

B&W: map-projected (335MB)

IRB color: map-projected (155MB)
B&W: map-projected  (157MB),
non-map  (213MB)

IRB color: map projected  (70MB)
non-map  (165MB)

Merged IRB: map projected  (288MB)

Merged RGB: map-projected  (286MB)

RGB color: non map-projected  (146MB)
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products

About color products (PDF)
HiView main page

 Observation Toolbox
Acquisition date:11 November 2008 Local Mars time:15:53
Latitude (centered):-47.240° Longitude (East):19.479°
Range to target site:252.0 km (157.5 miles)Original image scale range:50.4 cm/pixel (with 2 x 2 binning) so objects ~151 cm across are resolved
Map projected scale:50 cm/pixel and North is upMap projection:Equirectangular
Emission angle:3.6° Phase angle:80.2°
Solar incidence angle:77°, with the Sun about 13° above the horizon Solar longitude:155.8°, Northern Summer

Context map

Usage Policy
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: Image: NASA/JPL/University of Arizona
For information about NASA and agency programs on the Web, visit: http://www.nasa.gov. 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. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona. The image data were processed using the U.S. Geological Survey’s ISIS3 software.