PIA06717: Polar Layers and Dunes


Polar Layers and Dunes

Caption:

23 July 2004
Acquired just a few days ago on 21 July 2004, this 1.7 m/pixel (5.6 ft/pixel) Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows layer outcrops and sand dunes in the Chasma Boreale portion of the martian north polar cap. At this time, it is spring and these polar landforms are still covered by frost left over from the winter that ended back in March 2004. In summer, the dunes in this image will be darker than anything else in the scene. The picture is located near 85.1°N, 3.7°W, and covers an area about 1.5 km (0.9 mi) wide. This view is illuminated by sunlight from the upper right.

Cataloging Keywords:

Name Value Additional Values
Target Mars
System
Target Type Planet
Mission Mars Global Surveyor (MGS)
Instrument Host Mars Global Surveyor
Host Type Orbiter
Instrument Mars Orbiter Camera (MOC)
Detector
Extra Keywords Dune, Grayscale
Acquisition Date
Release Date 2004-07-23
Date in Caption 2004-07-21 2004-07-23
Image Credit NASA/JPL/Malin Space Science Systems
Source photojournal.jpl.nasa.gov/catalog/PIA06717
Identifier PIA06717