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Proceedings Paper

Proposed Molecular Transmission Band Models For LOWTRAN
Author(s): Joseph H. Pierluissi; John M. Jarem; Gung-Shoong Peng
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Paper Abstract

A discussion is presented of a proposed modification to the molecular absorption band models in the LOWTRAN code for the uniformly mixed (N2O) CH4, CO, 02, and CO2) and the trace (NO, NO2, NH3 and SO2) gases. The transmission function adopted for each model of a double exponential defined by three absorber parameters and a single spectral parameter. All the parameters were determined optimally through a numerical procedure that incorporates line-by-line and measured transmittance spectra. Vertical concentration profiles are provided for these gases which may be used together with the 33-levels standard atmospheres in the calculation of slant-path transmittances. The present single model for the uniformly mixed gases in LOWTRAN is compared with the combination of the proposed individual models.

Paper Details

Date Published: 21 January 1985
PDF: 7 pages
Proc. SPIE 0510, Infrared Technology X, (21 January 1985); doi: 10.1117/12.945019
Show Author Affiliations
Joseph H. Pierluissi, University of Texas at El Paso (United States)
John M. Jarem, University of Texas at El Paso (United States)
Gung-Shoong Peng, University of Texas at El Paso (United States)

Published in SPIE Proceedings Vol. 0510:
Infrared Technology X
Richard A. Mollicone; Irving J. Spiro, Editor(s)

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