Atmospheric transmission in the 750 - 2000 cm-1 region.

Infrared solar spectra have been obtained during a series of flights with a balloon borne Fourier Transform Spectrometer system. Major emphasis during these flights was placed on obtaining data during sunset. The spectra thus contain information on the atmospheric transmission over long stratospheric paths. These spectra have been analyzed to obtain information on the constituents responsible for the observed absorptions and the distribution with altitude of several of these constituents of interest in stratospheric chemistry. These spectra have also been used to determine the spectroscopic parameters for several compounds such as O₃ which are difficult to study in the laboratory. A description of the instrumentation used to obtain the data, samples of the spectra obtained, and details of the analysis are given.