Vol. 29, issue 03, article # 7

Abstract:

In the lidar complex, the combined optical method for sensing the lower and middle atmosphere was used. The method is based on the receiving signals of Rayleigh (elastic molecular scattering of light at a wavelength of 532 nm) and Raman (radiation of the first vibrational-rotational transition of nitrogen molecules at a wavelength of 607 nm when excited by the laser radiation at a wavelength of 532 nm) light scattering. The use of Raman channel made it possible to eliminate the distorting effect of aerosol at altitudes of its localization (up to 25 km) on the accuracy of temperature measurement. Extended temperature profiles at altitudes from 7 to 60 km, covering the upper troposphere and middle atmosphere, were obtained during simultaneous measurements of the signals at two receiving channels. A good agreement of the data with satellite and upper-air measurements and model results was obtained.

Keywords:

temperature, lidar, Rayleigh and Raman light scattering, troposphere, stratosphere, mesosphere

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