Recommended Modification Of LOWTRAN 4 To Include First Order Solar Scattering

Lewis L. Smith; Jerry Krassner; Walter G. Egan; Theodore W Hilgeman; John E. A. Selby

doi:10.1117/12.957930

19 December 1979 Recommended Modification Of LOWTRAN 4 To Include First Order Solar Scattering

Lewis L. Smith, Jerry Krassner, Walter G. Egan, Theodore W Hilgeman, John E. A. Selby

Proceedings Volume 0195, Atmospheric Effects on Radiative Transfer; (1979) https://doi.org/10.1117/12.957930
Event: 23rd Annual Technical Symposium, 1979, San Diego, United States

Abstract

The atmospheric transmittance and radiance code LOWTRAN 4 has been modified to include first order scattering of sunlight into the line of sight. This scattering becomes important for wavelengths shorter than 5μm under daytime conditions. The radiance due to both aerosol and molecular scattering is combined with atmospheric extinction and thermal emission already contained in the model. A mean phase function is defined by averaging over a given aerosol size distribution, composition, and wavelength in order to simplify the calculations. A comparison of the model with observational data is presented.

Citation Download Citation

Lewis L. Smith, Jerry Krassner, Walter G. Egan, Theodore W Hilgeman, and John E. A. Selby "Recommended Modification Of LOWTRAN 4 To Include First Order Solar Scattering", Proc. SPIE 0195, Atmospheric Effects on Radiative Transfer, (19 December 1979); https://doi.org/10.1117/12.957930

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