Estimations of the effect of modern ozone absorption cros-ssections data on calculation of the atmospheric transmission and fluxes, measured using Sun photometers in the UV spectral region, are made. The ozone absorption cross-sections, often used in radiative codes, and new data of Serdyuchenko et al. are considered.
The atmospheric solar spectra are calculated using different spectroscopic databases of H2O absorption line parameters in the temperature and humidity range observed in the mid-latitudes. A comparison of the simulated spectra and measured high-resolution atmospheric spectra in the near-infrared water vapor bands, is carried out. It is shown that the values of H2O atmospheric column, retrieved using different modern spectroscopic databases may vary by more than 3%.
The sulfur dioxide absorption cross sections, measured with a Fourier transform spectrometer at room temperature and varied pressure of SO2-N2 in the 260-330 μm region, are presented. The absorption spectra are obtained at a high spectral resolution of 0.5 cm-1. The measurements results are compared with SO2 cross section data from literature.