LIDAR (an acronym for Light Detection and Ranging) is a remote sensing technique similar to radar that is being used extensively in fields ranging from the surveillance of gaseous effluents from smoke stacks, airplanes engines etc. to atmospheric research.
The Firepond Lidar at Millstone Hill / MIT Haystack Observatory by Th. J. Duck
Differential Absorption LIDAR using a DA500A Transientrecorder
Fast ComTec offers a comprehensive range of LIDAR instrumentation ranging from Transientrecorders to ultra fast "time resolved" Single Photon Counting Systems.
The vertical laser beam from the atmospheric lidar being developed by the Australian Antarctic Division and the University of Adelaide against a background of trailing stars.