A transmittance band model based on an equivalent absorption coefficient is presented. The form of the model and its band parameter determination scheme are presented. The model is shown to be useful for analyzing different empirical models, such as the double exponential function. Both models are developed for a single band of methane in the wavenumber region from 1150 to 1400 cm -1 at 5 cm -1 intervals.
John M. Jarem,
Joseph H. Pierluissi,
William W. Ng,
"A Transmittance Model For Atmospheric Methane", Proc. SPIE 0510, Infrared Technology X, (21 January 1985); doi: 10.1117/12.945011; https://doi.org/10.1117/12.945011