2006 , Volume 11, Special issue, p.44-51

Method of obtaining the one-parametric approximation formulas for the atmospheric transmission functions in arbitrary spectral regions is developed making use the exact expressions for the expansion coefficients of the functions under study into series of exponents. To quantitatively estimate the effect of the spectral line wing shape on the radiation fluxes in the chosen spectral region, we use the line shape which fits well the experimental data by Burch et al and has the functional form followed from the line wing theory instead of the Voigt line shape cut at some distance from the line centre.