Reducing of systematic errors in lidar measurements caused by differential extinction and backscattering by aerosol and cloud particles is a key problem in determination of the ozone concentration in the atmosphere. Comparative analysis of the effectiveness of different algorithms of the method of differential absorption (MDA) has been carried out in the frameworks of the method of statistical tests for the cases of elastic and inelastic scattering. They include the canonical MDA technique, in which the ozone concentration profile is calculated using the ratio of two signals measured at the "on" and "off" wavelengths in the vicinity of the absorption band. The peculiarities of the classic Raman and new rotation rotation-vibration methods are considered. It is shown that the presence of multiple scattering depending on the wavelength and differential absorption by cloud droplets are the main sources of systematic errors in measuring the ozone concentration. It dictates the necessity of correction.
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