Method for the Determination of the Concentration of the Respirable Atmospheric Aerosol Fraction from the Data of Three-Frequency Lidar Sensing

摘要

Based on the statistical model of atmospheric aerosol, regression equations are derived for the values of the aerosol extinction ε_a(λ) and backscatteringβ_(πa)(λ) coefficients at wavelengths of 355, 532, and 1064 nm. The equations were tested using experimental and calculated AERONET data. The efficiency of the equations is estimated with the use of algorithms for retrieving the profiles of backscattering coefficients from the data of the three-frequency lidar sensing of the atmosphere via numerical experiments. A method of finding the volume concentration of the aerosol particles H_(2.5) and H_(10) corresponding to the standards for the mass concentrations of PM_(2.5) and PM_(10) is proposed based on the same stated multiple correlation between these characteristics and β_(πa)(λ).