This paper proposes simplified formulas for an engineering calculation of the spectral scattering and absorption coefficients of the earthÃ¢Â€Â™s atmosphere as a function of altitude, using known experimental values of the path along the height of the spectral natural optical scattering and absorption thicknesses.
A. V. Ivanov, A. A. Kamenev, and V. D. Starichenkova, "Spectral scattering and absorption coefficients for modelling the spectroenergetic characteristics of the radiation of the earthÃ¢Â€Â™s atmosphere," J. Opt. Technol. 70, 77-79 (2003)