Thermal diffusion in the earth's upper atmosphere

Details Thermal diffusion in the earth's upper atmosphere Thermal diffusion in the earth's upper atmosphere

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ge%26ae..19.1050p&link_type=abstract

Geomagnetizm i Aeronomiia, vol. 19, Nov.-Dec. 1979, p. 1050-1057. In Russian.

Computer Science

1

Atmospheric Composition, Gas Mixtures, Thermal Diffusion, Upper Atmosphere, Binary Mixtures, Particle Size Distribution, Ternary Systems, Thermodynamic Equilibrium, Vertical Distribution

Scientific paper

It is shown that there is a simple relationship between the thermal diffusion coefficient alpha sub i and the thermal diffusion ratio for multicomponent gas mixtures. Asymptotic expressions are obtained for alpha sub i for the minor and major components of a three-component gas mixture. Alpha sub i is calculated in the three-component approximation for H, H2, He, O2, and Ar in the earth's atmosphere. Thermal diffusion of the principal neutral components O and N2 is studied in the binary gas approximation. It is shown that thermal diffusion has an influence on height concentration profiles of all neutral components in the upper atmosphere.

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