How GPS can measure snowfall


Wed, Dec 9th, 2009 11:11 by capnasty NEWS

GPS signals bounce off the ground and arrive later than direct satellite signals, so they've been largely ignored, aerospace engineering professor Kristine Larson explained. But researchers realized they could match the depth of snow with the changes in the "bounce," or the time the signal took to hit the ground and arrive at the receiver, she said.



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