Abstract: Atmospheric visibility has been measured with the lidar technique using the ?slope method.? The system is briefly described and some aspects of slant path visibility measurements for aeronautical applications are discussed. ...

Abstract: The use of small monostatic Doppler radars to identify precipitating hydrometeors has been studied. Monostatic and bistatic configurations were simultaneously tested to select those best suited to the French meteorological ...

Abstract: A cloud ceilometer using a solid-state laser was developed by the French meteorological office in association with Sfim ODS. The transmitter is an eye-safe erbium-glass laser operating at 1.54 ?m. Cloud-base heights are ...