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Video: Satellites that can measure by the micron

At the AGU Fall Meeting in San Francisco, scientists discuss the satellite project GRACE (short for Gravity Recovery and Climate Experience), which estimates how the world's water depths have changed and will change over years to come. Hear from the scientists, and check out some of the satellite images.

2 minutes 41 seconds

December 12, 2006 1:26 PM PST

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