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Proceedings Paper

Low-Resolution Molecular Transmission Model For Atmospheric Water Vapor In LOWTRAN
Author(s): Joseph H Pierluissi; Christos E Maragoudakis; Leopoldo A Gemoets
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Paper Abstract

A 20 cm-1 resolution band model is presented for the calculation of water vapor molecular transmittance in the spectral region from the near infrared to zero frequency. It was developed for replacing the empirically-obtained, look-up transmission tables presently in LOWTRAN 6. The model consists of an exponential function whose exponent is expressed in terms of atmospheric pressure, temperature and absorber amount, as well as of four defining parameters. Of these parameters, only one is allowed to account for spectral variability over 5 cm-1 spectral intervals. The model was developed using both FASCODE-generated transmittance data and laboratory measured spectra. The parameters are presented in tabular and graphical form. Comparisons are made between line-by-line calculations, LOWTRAN predictions, and new-model generated transmittance.

Paper Details

Date Published: 10 August 1988
PDF: 4 pages
Proc. SPIE 0926, Optical, Infrared, Millimeter Wave Propagation Engineering, (10 August 1988); doi: 10.1117/12.945761
Show Author Affiliations
Joseph H Pierluissi, The University of Texas (United States)
Christos E Maragoudakis, The University of Texas (United States)
Leopoldo A Gemoets, The University of Texas (United States)

Published in SPIE Proceedings Vol. 0926:
Optical, Infrared, Millimeter Wave Propagation Engineering
Norman S. Kopeika; Walter B. Miller, Editor(s)

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