Abstract

Modifications to the atmospheric transmission and radiation code lowtran5 are presented which include (1) an increase in the spectral resolution from 20 to 5 cm−1, (2) the addition of temperature-dependent molecular absorption coefficients, (3) the use of a multiparameter Doppler-Lorentz band model for calculation of molecular transmittance, and (4) the use of the Curtis-Godson approximation for multilayered paths. Comparisons of predictions using the lowtran5 5-cm−1 band model option to measured transmittance and radiance data are also presented.

© 1981 Optical Society of America

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