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Comparative Analysis of Aerosol Lidar Potential Possibilities to Measure Wind Speed in Different Spectral Ranges

Results are provided of a study devoted to the atmosphere optical state influence on the wind aerosol lidar sensing range and comparison of range estimates obtained for different sensing wavelengths in ultraviolet, visible and near-infrared ranges. It is demonstrated that the aerosol lidar sensing range significantly depends on the Earth atmosphere optical state. The maximum laser sensing range is realized at the wavelength of 1.06 μm dangerous for vision. Sensing wavelengths of 0.355, 1.57 and 2.09 μm are potentially safe for vision. Laser sensing range for the wavelength of 2.09 μm is slightly inferior to the sensing range of 0.355 and 1.57 μm. In this regard, it is promising in the atmosphere surface layer to use sensing wavelengths of 0.355 or 1.57 μm in a wind aerosol lidar. Maximum sensing range of a wind aerosol lidar for a wavelength of 0.355 μm in the transparent earth atmosphere with the receiving lens radius of 150 mm (depending on the laser used) is about 2.5--0.8 km, and for a sensing wavelength of 1.57 μm --- about 1.5 km