Spectral system for measurement of gaseous atmospheric components is presented. It is based on Fourier Transform Spectrometer (FTS) Bruker IFS 125M, combined with optical fiber tracker. Test results of experiments performed for atmospheric CO2 and H2O content in the atmosphere near Tomsk on the basis of atmospheric transmission spectrum analysis of solar radiation registered by FTS are described. The comparison of atmospheric transmission spectra for 34 and 78 degrees of zenith angles of the Sun was conducted which have exhibited a presence in the earth ground layer of a significant quantity of CO2-CO2 complexes.
emission spectrum of neon, the frequency scale, alignment of the Fourier spectrometer