21 December 1994 Spectral sensing of IR atmospheric parameters
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Abstract
Recent developments in a spectral sensing method for the determination of IR atmospheric parameters are reported. Theoretical and practical aspects of the minimum information type inversion for the retrieval of temperature and water vapor profiles from IR emission spectra are presented. Two evalua- tion procedures developed to estimate first guess profiles of temperature and humidity based solely on the measured spectrum are described. The retrieval methodology is tested on new measurements performed at a resolution of 1 cm-1 and zenith angle of 45 degrees. The potential of the approach is verified through several MODTRAN2 calculations performed to compare transmittances generated with radiosonde profiles and retrieved profiles. Finally, it is proposed to use the spectral sensing method as an aid for predicting slant path transmittances.
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Jean-Marc Theriault, Jean-Marc Theriault, Jean-Luc Moncet, Jean-Luc Moncet, Claude Bradette, Claude Bradette, } "Spectral sensing of IR atmospheric parameters", Proc. SPIE 2312, Optics in Atmospheric Propagation and Random Phenomena, (21 December 1994); doi: 10.1117/12.197364; https://doi.org/10.1117/12.197364
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