June 1, 1974
To determine attenuation values over a wide range of wave-lengths, an analytical methodology is developed to accommodate the population of droplets according to size in unit volume of several models of water-occluded atmospheres. The extent of penetrability of cloudy and rainy atmospheres is then demonstrated analytically as a function of wavelengths. The analysis of attenuation by water droplet atmospheres draws on the Mie theory of absorption and scatter by spherical droplets. Because of requirements forged by its scope, the study provides an extensive data base on the population of droplets by size in various water-occluded atmospheres.
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