Orbital View: Tracking the Volcanic Ash Clouds

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Via NASA's Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite:

Nighttime Ash Tracking with CALIPSO
While most satellites only offer bird's-eye view photographs of the sky, NASA's CALIPSO satellite records a vertical profile of the atmosphere, giving pilots and advisory centers the ability to more accurately track volcanic ash. The ash was mostly floating somewhere between four and six kilometers high on May 16, the date CALIPSO recorded the data depicted above.
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Niraj Chokshi is a former staff editor at TheAtlantic.com, where he wrote about technology. He is currently freelancing and can be reached through his personal website, NirajC.com. More

Niraj previously reported on the business of the nation's largest law firms for The Recorder, a San Francisco legal newspaper. He has also been published in The Hartford Courant, The Seattle Times and The Age, in Melbourne, Australia. He's also a longtime programmer and sometimes website designer.
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