In a partnership with the ONERA/DOTA, France and the LEOSPHERE a prototype of an eye safe, portable, robust and compact Doppler lidar EZ WIND LIDAR TM dedicated to measurements of the vertical profiles of the wind speed and wind direction was developed. This pulsed heterodyne lidar comprises optic-fibre IR laser operating at 20kHz repetition rate. Large number of FFTs is averaged to provide a radial wind speed profile using Maximum Likelihood Estimator. The horizontal and vertical wind speed and direction are reconstructed from measurements at four lines of sight and no calibration is needed. The profile range of the prototype system is between 45-650m with vertical resolution of 30m for integration times of 2Hz in line of sight. It is able to measure the wind speed in the range between ±30m/s. This wind lidar shall find use as a complementary to the masts providing continuous wind profiles of very high accuracy in order to improve continuous meteorological and pollution measurements.
In this paper description of the EZ AEROSOL LIDAR and the EZ WIND LIDAR is given. Selected examples obtained with the EZ AEROSOL LIDAR during several dedicated campaigns over large cities, suburban and in rural areas, e.g. pollution tracking (LISAIR, Paris, France), African monsoon observations (AMMA, Niamey, Niger), aerosol and cloud validation campaigns (AERONET sunphotometer and SIRTA lidar, Palaiseau, France; ARM SGP instrumentation, Lamont, USA) are also presented. These are followed by selected examples of vertical profiles of wind speed and wind direction obtained by the EZ WIND LIDAR during past/current test and validation campaigns (ONERA/DOTA and CEA, Palaiseau, France) are presented.