Accession Number : AD0622526

Title :   INVESTIGATIONS OF THE POLARIZATION OF THE SUNLIT SKY.

Descriptive Note : Scientific rept.,

Corporate Author : CALIFORNIA UNIV LOS ANGELES DEPT OF METEOROLOGY

Personal Author(s) : Holzworth,George C. ; nagaraja Rao,C. R.

Report Date : FEB 1965

Pagination or Media Count : 82

Abstract : Theoretical studies of the features of skylight polarization based on the solution of the radiative transfer problem in a plane-parallel molecular atmosphere are briefly reviewed. The results of a series of systematic measurements of skylight polarization are presented and discussed. The measurements were made at Los Angeles during Spring 1963. A photoelectric skylight polarimeter employing ac light modulation has been employed in these measurements which were confined to three spectral intervals (bandwidth approx. 150 A) centered around 4000, 5100 and 6000 A. An attempt has been made to account for the departure of the location and dispersion of the neutral points and the polarization maxima from the computed values for a purely molecular atmosphere in terms of the local turbidity. The effect of the variable reflectivity of the ground on the magnitudes of polarization maxima has been studied. (Author)

Descriptors :   (*SOLAR RADIATION, POLARIZATION), (*ATMOSPHERES, OPTICAL PROPERTIES), (*OPTICS, METEOROLOGICAL PHENOMENA), SKY BRIGHTNESS, ELECTROMAGNETIC RADIATION, SCATTERING, AEROSOLS, PHOTOELECTRIC EFFECT, POLARISCOPES

Distribution Statement : APPROVED FOR PUBLIC RELEASE