Abstract

An application is made of numerical computer techniques to the modeling of molecular absorption by atmospheric sulfur dioxide in the infrared region. The general transmittance function used in the widely accepted code called Lowtran is adopted, through an analytical approximation available in the literature for water vapor, ozone, and the uniformly mixed absorbers. The transmittance data used in the development were generated from simulated line spectra calculated with a tape tabulation of line parameters for the trace gases. The constants describing the function, as well as the spectral parameters at 5 cm⁻¹ intervals, are provided in order to allow for direct calculation of sulfur dioxide transmittance in typical concentrations over the infrared region of absorption.

Validated transmittance band model for SO₂ in the infrared

Joseph H. Pierluissi, John M. Jarem, and Christos Maragoudakis
Appl. Opt. 23(19) 3325-3330 (1984)

Validated band model for NO₂ molecular transmittance in the infrared

Joseph H. Pierluissi and Ken Tomiyama
Appl. Opt. 22(11) 1628-1632 (1983)

Validated transmittance band model for atmospheric nitrous oxide in the infrared

Joseph H. Pierluissi, John M. Jarem, and Wai-Lam W. Ng
Appl. Opt. 23(3) 402-405 (1984)

Validated infrared transmittance band model for methane in the atmosphere

John M. Jarem, Joseph H. Pierluissi, and Wai-Lam Ng
Appl. Opt. 23(19) 3331-3335 (1984)

Molecular transmittance band model for ammonia

Joseph H. Pierluissi and Christos E. Maragoudakis
Appl. Opt. 25(7) 1145-1148 (1986)