skip to navigation
|
Springtime Dunes
- Click the image above for a larger view
- Full-Res JPEG (836 x 2312) (433.1 kB)
- Full-Res TIFF (836 x 2312) (1.9 MB)
Caption:
25 August 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows part of a dune field in Chasma Boreale, the large north polar trough. The bright material covering the dunes is frozen carbon dioxide. This carbon dioxide frost accumulates during the northern autumn and winter, and sublimes away (turns directly from solid to gas) during the spring and summer. The image was acquired near the end of the northern spring. The dark areas in this image are places where the frost sublimed away, revealing the coarse dark sand of the dunes.
Location near
: 84.5°N, 19.2°W
Image width
: ~3 km (~1.9 mi)
Illumination from
: lower left
Season
: Northern Spring
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 | 2006-08-25 | |
| Date in Caption | 2006-08-25 | |
| Image Credit | NASA/JPL/Malin Space Science Systems | |
| Source | photojournal.jpl.nasa.gov/catalog/PIA08704 | |
| Identifier | PIA08704 | |
