Absorption Of Infrared Radiation By Atmospheric Water Vapor In The Region 4.3-5.5 Micron - Preliminary Measurements

A. Ben-Shalom; A. D. Devir; S. G. Lipson; U. P. Oppenheim

doi:10.1117/12.959520

17 December 1980 Absorption Of Infrared Radiation By Atmospheric Water Vapor In The Region 4.3-5.5 Micron - Preliminary Measurements

A. Ben-Shalom, A. D. Devir, S. G. Lipson, U. P. Oppenheim

Author Affiliations +

Proceedings Volume 0253, Modern Utilization of Infrared Technology VI; (1980) https://doi.org/10.1117/12.959520
Event: 24th Annual Technical Symposium, 1980, San Diego, United States

Abstract

Experimental measurements of infra-red transmittance are reported, which show that the computer code LOWTRAN-4 predicts too high a transmittance in the region 4.3-5.5 micron, and that the discrepancy is dependent on the water vapor content. We have carried out experiments at various ranges up to 45 km in order to vary the precipitable water amount over a wide range, and from the results we have deduced that the anomalous transmittance results from an incorrect estimate of the continuous absorption, while the spectral component is substantially correct.

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A. Ben-Shalom, A. D. Devir, S. G. Lipson, and U. P. Oppenheim "Absorption Of Infrared Radiation By Atmospheric Water Vapor In The Region 4.3-5.5 Micron - Preliminary Measurements", Proc. SPIE 0253, Modern Utilization of Infrared Technology VI, (17 December 1980); https://doi.org/10.1117/12.959520

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