Said Markus in the FAQ: "We have a laser altimeter...that's similar to ICESat and is the primary instrument of the mission. The laser bounces off the surface, whether it's snow or ice, and provides a measure of surface elevation. But we also have radars on this plane, developed by the University of Kansas, which penetrate the snow. If you look at the difference between the laser and radar results, ideally you get the snow depth."
November 26, 2009 6:00 AM PST
Photo by: Jane Peterson, NSERC
| Caption by: Jonathan Skillings
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