This image shows a cross-section of a portion of the north polar ice cap of Mars, derived from data acquired from NASA's Mars Reconnaissance Orbiter's Shallow Radar instrument. The data depict the region's internal ice structure.
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North Polar Cap Cross Section

annotated image for PIA13164
Click on the image for larger annotated version

This image shows a cross-section of a portion of the north polar ice cap of Mars, derived from data acquired by the Mars Reconnaissance Orbiter's Shallow Radar (SHARAD), one of six instruments on the spacecraft.

The data depict the region's internal ice structure, with annotations describing different layers. The ice depicted in this graphic is approximately 2 kilometers (1.2 miles) thick and 250 kilometers (155 miles) across. White lines show reflection of the radar signal back to the spacecraft. Each line represents a place where a layer sits on top of another. Scientists study how thick the pancake-like layers are, where they bulge and how they tilt up or down to understand what the surface of the ice sheet was like in the past as each new layer was deposited.

Image details

ID#:
PIA13164

Date added:
2010-05-26

Target:
Mars

Mission:
Mars Reconnaissance Orbiter (MRO)

Spacecraft:
Mars Reconnaissance Orbiter (MRO)

Instruments:
Shallow Subsurface Radar (SHARAD)

Rating:



Views:
3,600

Full-Res TIFF:
PIA13164.tif (1.82 MB)

Full-Res JPG:
PIA13164.jpg (0.58 MB)

Image credit:
NASA/JPL-Caltech/ASI/UT