Abstract
Atmospheric extinction in the ultraviolet is considered spectrally and with altitude as follows: 1. The Rayleigh scattering coefficients are determined by utilizing spectral scattering cross-sections with molecular number densities from the U.S. Standard Atmosphere. 2. The aerosol attenuation coefficients are established from available transmission measurements in conjunction with a suitable vertical aerosol density distribution. 3. The atmospheric ozone absorption coefficients result from Vigroux’s coefficients applied to a generalized ozone distribution. The resulting coefficients and computed optical thickness values are placed in the format of a series of tabulations for wavelengths from 0.27 μ to 0.55 μ, with the parameters arrayed at kilometer intervals to an altitude of 50 km. The tabulations presented permit various exploratory calculations including horizontal, vertical, and slant path transmission from sea level and from space into the atmosphere; also, between any two desired altitudes within the occluding ozone region. Sample tabulations are given for 0.27 μ and 0.34 μ. Tabulations for other wavelengths are contained in ref. 18.
© 1964 Optical Society of America
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Louis Elterman
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