Absorption Of Infrared Radiation By Atmospheric Water Vapor In The Region 4.3 To 5.5 Microns: Preliminary Measurements

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

doi:10.1117/12.7972801

1 October 1981 Absorption Of Infrared Radiation By Atmospheric Water Vapor In The Region 4.3 To 5.5 Microns: Preliminary Measurements

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

Author Affiliations +

Optical Engineering, Vol. 20, Issue 5, 205746 (October 1981). https://doi.org/10.1117/12.7972801

Abstract

Experimental measurements of infrared transmittance are reported, which show that the computer code LOWTRAN-4 predicts too high a transmittance in the region 4.3 to 5.5 microns, 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 continuum 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 To 5.5 Microns: Preliminary Measurements," Optical Engineering 20(5), 205746 (1 October 1981). https://doi.org/10.1117/12.7972801

Published: 1 October 1981

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