Kaiser Crater Dune Field
NASA/JPL/UArizona
Kaiser Crater Dune Field
PSP_003141_1330  Science Theme: Aeolian Processes
This observation shows a sand dune field in Kaiser Crater, a 210 kilometer (130 mile) wide impact basin in the Hellespontus region of Mars.

Winds have trapped massive quantities of sand on the floors of broad craters in this region. The steepest slopes on each dune, the slip faces, point to the East indicating that the dominant wind direction in this part of the dune field is from West to East. Patches of seasonal frost can be seen in the low areas between the dunes.

The subimage reveals smaller secondary dunes superimposed on the surface of the large dunes and even smaller ripples that appear between and perpendicular to the secondary dunes. Avalanching or mass movement of sand has left deep scars on the slip face of the large dune in the upper left portion of the subimage. This may indicate that the sand is not loose but is weakly cemented.



Written by: Maria Banks  (25 April 2007)

This is a stereo pair with PSP_003629_1330.
 
Acquisition date
29 March 2007

Local Mars time
15:43

Latitude (centered)
-46.553°

Longitude (East)
19.248°

Spacecraft altitude
252.1 km (156.7 miles)

Original image scale range
26.4 cm/pixel (with 1 x 1 binning) so objects ~79 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
17.5°

Phase angle
74.6°

Solar incidence angle
58°, with the Sun about 32° above the horizon

Solar longitude
209.0°, Northern Autumn

For non-map projected images
North azimuth:  95°
Sub-solar azimuth:  23.3°
JPEG
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

JP2
Black and white
map-projected   (837MB)

IRB color
map-projected   (446MB)

JP2 EXTRAS
Black and white
map-projected  (382MB)
non-map           (443MB)

IRB color
map projected  (131MB)
non-map           (367MB)

Merged IRB
map projected  (184MB)

Merged RGB
map-projected  (186MB)

RGB color
non map           (346MB)
ANAGLYPHS
Map-projected, reduced-resolution
Full resolution JP2 download
Anaglyph details page

ADDITIONAL INFORMATION
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products
HiView

NB
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

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:
NASA/JPL/University of Arizona

POSTSCRIPT
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.