Causes of gas-composition changes in the thermosphere

Details Causes of gas-composition changes in the thermosphere Causes of gas-composition changes in the thermosphere

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ge%26ae..28..246k&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 28, Mar.-Apr. 1988, p. 246-250. In Russian.

Computer Science

Gas Composition, Ionospheric Composition, Thermosphere, Upper Atmosphere, Atmospheric Circulation, Atmospheric Models, Diffusion Coefficient, Mass Transfer, Three Dimensional Models, Turbulent Diffusion, Vertical Distribution

Scientific paper

It is suggested that gas-composition changes in a region of diffusion equilibrium in the upper atmosphere can be caused by thermospheric circulation alone. Numerical calculations are carried out using a three-dimensional model for the composition and dynamics of the thermosphere, with allowance for mean mass transfer, and molecular and turbulent diffusion. These calculations show that gas-composition changes connected with changes in the turbulent diffusion coefficient are localized in a region below a height of 140 km.

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