Ridges in Meridiani Planum
Ridges in Meridiani Planum
ESP_025386_1800  Science Theme: Tectonic Processes
When terrain gets squeezed by geologic forces, deep rocks sometimes break and get pushed upwards forming raised wrinkles on the surface. These wrinkle ridges are common on a lot of planets including Mars.

One of these ridges exists south of this image but seems to have been buried there. With HiRISE, we might be able to figure out the sequence of events by comparing the topography of the ridge with the younger layer that buries it.

Meridiani Planum is famous for another reason. This is where the rover Opportunity landed and has been exploring since 2004.

Written by: HiRISE Science Team  (20 June 2012)

This is a stereo pair with ESP_025663_1800.
Acquisition date
26 December 2011

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
270.1 km (167.9 miles)

Original image scale range
27.3 cm/pixel (with 1 x 1 binning) so objects ~82 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
47°, with the Sun about 43° above the horizon

Solar longitude
48.5°, Northern Spring

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  31.7°
Black and white
map projected  non-map

IRB color
map projected  non-map

Merged IRB
map projected

Merged RGB
map projected

RGB color
non-map projected

Black and white
map-projected   (656MB)

IRB color
map-projected   (368MB)

Black and white
map-projected  (330MB)
non-map           (334MB)

IRB color
map projected  (119MB)
non-map           (297MB)

Merged IRB
map projected  (157MB)

Merged RGB
map-projected  (150MB)

RGB color
non map           (289MB)
Map-projected, reduced-resolution
Full resolution JP2 download
Anaglyph details page

B&W label
Color label
Merged IRB label
Merged RGB label
EDR products

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/JPL/University of Arizona

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.