Laser Calibration of the ATM
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Laser Calibration of the ATM

December 18, 2012
John Sonntag adjusts an alignment mirror during laser calibration of the Airborne Topographic Mapper (ATM). The instrument pulses laser light in circular scans on the ground, which reflect back to the aircraft and are converted into elevation maps of the ice surface. Credit: Jane Peterson, NSERC

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