Atmospheric Transmissivity and Turbulence in the Ultra-violet Region of the Spectrum

Abstract
The attenuation of a near horizontal beam from a fourth harmonic YAG laser at 266 nm has been determined as a function of visual range as determined by the transmissivity at 532 nm. The measurements in the range up to 11 km-1 are accounted for by Mie and Rayleigh scatter and by optical absorption, probably due to ozone. Turbulence measurements are in agreement with Tatarski's theory.