Accession Number : AD0437226


Title :   MOLECULAR OPTICAL THICKNESS OF LOW-DENSITY MODELS OF THE ATMOSPHERE OF MARS,


Corporate Author : GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV


Personal Author(s) : GRAY,E L ; Coulson,K L


Report Date : Mar 1964


Pagination or Media Count : 32


Abstract : Values of volume scattering coefficient and normal optical thickness for the revised estimates of the Martian atmosphere are given, as a function of altitude above the planetary surface, for eight selected wavelengths from 2500A to 10,000A. Four models of the Martian atmosphere, as given by the Jet Propulsion Laboratory, are used, the surface pressure for the models being 11 mb. (2 models), 15 mb., and mb. Comparisons with the previous higher-density atmospheric models for Mars, and with the U. S. Standard Atmosphere, are shown, and the values of optical thickness are used to compute the energy directed outward from the top of a Rayleigh atmosphere on Mars. The computations show that the normal optical thickness is lower for the new models than for the previous models by approximately the ratio of the surface pressures. (Author)


Descriptors :   *MARS(PLANET) , *MOLECULES , *MATHEMATICAL MODELS , THICKNESS , DENSITY , SCATTERING , VOLUME , FUNCTIONS(MATHEMATICS) , SURFACES , PRESSURE , ENERGY , EQUATIONS , TABLES(DATA) , SOLAR RADIATION , INTENSITY


Distribution Statement : APPROVED FOR PUBLIC RELEASE