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The airborne Wind Infrared Doppler Lidar (WIND) has been developed through French‐German cooperation. The system is based on a pulsed 10.6-mm laser transmitter, a heterodyne receiver, and a conical scanning device. To the authors’ knowledge, it is the first airborne Doppler lidar for atmospheric research to retrieve the whole tropospheric wind profile between the ground and the flight level looking downward. The wind vector is measured with the velocity-azimuth display (VAD) technique with a vertical sampling of 250 m. The first flights on board the DLR Falcon 20 aircraft were performed in 1999. Results of a comparison among WIND, radiosondes, windprofiler radar measurements, numerical models, and simulations are presented. It is shown that the correspondence of airborne WIND measurements with those of other instruments or models is better than 1.5 m s21 and 58 for the horizontal wind vector. These results show the excellent capability of conical scanning Doppler lidars to provide unique insights into mesoscale dynamic processes and progress made toward future spaceborne systems.

Experimental Validation of Wind Profiling Performed by the Airborne 10-μm Heterodyne Doppler Lidar WIND