The lidar is a good tool for investigations of atmospheric aerosol and ozone due to its possibility to give a continuity of measurements, to its easy handling and to its low cost[1]. Now Mobile scanning lidars are in use for multispectral and polarization measurements[2,31. To investigate the formation and life cycle, height, thikness and optical parameters of contrails the Fraunhofer Institute for Atmospheric Environmental Research has built a mobile scanning lidar employing a Nd:Yag laser(1064, 532 and 355 nm) and 52 cm cassegrain telescope for depolarization and multiwavelength backscattering measurements[1]. The lidar is accommodated in a 20 feet container for the sake of mobility. A similar mobile lidar (optical receiver 30cm) was built in the Meteorological Institute of the University of Munich for monitoring the spatial distribution and temporal evolution of cloud fields and aerosol layers[3].
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