Accession Number : AD0427618


Title :   A NEW METHOD FOR ATMOSPHERIC TEMPERATURE DETERMINATION.


Descriptive Note : Scientific rept. no. 3.


Corporate Author : GEOPHYSICS CORP OF AMERICA BEDFORD MASS


Personal Author(s) : Minzner,Raymond A ; Sauermann,Gerhard ; Peterson,Lennart R


Report Date : Jun 1963


Pagination or Media Count : 112


Abstract : Number-density-versus-altitude data for two gases having large differences in molecular weight permit the accurate determination of the temperature of planetary atmospheres in diffusive equilibrium. A well-known equation relating temperature and number density of a single gas when applied alternately to the heavy and light gases determines a temperature-altitude profile with associated uncertainties which are minimized by an iterative process. A new equation simultaneously involving both the light-and heavy-gas number densities permits accurate temperature calculations in a single-step process. This dualgas equation applied to the upper half of a region of observed number-density data, together with the heavy-gas-down equation applied to the lower half of the region provides a minimum-error, temperature-altitude profile over the entire altitude range of number-density data. A rigorous error analysis demonstrates how the integration limits may be optimized. (Author)


Descriptors :   TEMPERATURE , MEASUREMENT , ACCELERATION , GRAVITY , DENSITY , EQUATIONS , ERRORS , MOLECULAR WEIGHT , PLANETARY ATMOSPHERES , OPTIMIZATION , NUMERICAL INTEGRATION


Distribution Statement : APPROVED FOR PUBLIC RELEASE