PIA03657: Nirgal Vallis

Nirgal Vallis


9 January 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the floor and walls of a small portion of Nirgal Vallis. The floor is covered by large windblown ripples. The valley wall near the center right exhibits a group of gullies, formed perhaps by a combination of mass movement and possibly seepage and runoff of groundwater.

Location near : 28.2°S, 42.2°W
Image width : ~3 km (~1.9 mi)
Illumination from : upper left
Season : Southern Summer

Cataloging Keywords:

Name Value Additional Values
Target Mars
System Mars
Target Type Planet
Mission Mars Global Surveyor (MGS)
Instrument Host Mars Global Surveyor (MGS)
Host Type Orbiter
Instrument Mars Orbiter Camera (MOC)
Extra Keywords Grayscale, Water
Acquisition Date
Release Date 2006-01-09
Date in Caption 2006-01-09
Image Credit NASA/JPL/Malin Space Science Systems
Source photojournal.jpl.nasa.gov/catalog/PIA03657
Identifier PIA03657