Abstract
Spectral transmittance measurements covering the 3.5–5.5-μ band were made over horizontal paths of length up to a maximum value equal to the reduced atmosphere (8 km). The measurements, which were made from a mountain site at 5200-m altitude, used a folded path technique for some of the ranges with corner reflectors located at the remote ends of the paths. The data were required mainly for the verification of transmission prediction methods, and for this purpose the 4.3-μ CO2 band was chosen. The results of the measurements over this band are given together with prediction and laboratory spectra for comparison.
© 1965 Optical Society of America
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