Abstract
An analysis method that uses the nonlinear least-squares fit technique has been developed for emission spectra obtained with a Fourier transform spectrometer. This method is used for the analysis of submillimeter-region atmospheric emission spectra obtained with a balloon-borne FT spectrometer that was carried out as a correlative measurement for the LIMS satellite experiment. The emitting gas concentrations, the instrument line shape, and the instrument response functions have been simultaneously retrieved. The retrieved mixing ratios of H2O and O3 in the stratosphere from four spectral intervals have standard deviations of ~10%, and the average values agree to within 10% of corresponding results from the LIMS satellite experiment which used a broadband emission radiometer in the IR region.
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