Vertical transport and photochemistry in the terrestrial mesosphere and lower thermosphere /50-120 km/

Details Vertical transport and photochemistry in the terrestrial mesosphere and lower thermosphere /50-120 km/ Vertical transport and photochemistry in the terrestrial mesosphere and lower thermosphere /50-120 km/

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.3617a&link_type=abstract

Journal of Geophysical Research, vol. 86, May 1, 1981, p. 3617-3627.

Physics

161

Atmospheric Chemistry, Mesosphere, Photochemical Reactions, Solar Activity Effects, Thermosphere, Aeronomy, Atmospheric Diffusion, Atmospheric Models, Reaction Kinetics, Solar Cycles, Solar Terrestrial Interactions, Temperature Dependence, Temperature Distribution, Turbulent Diffusion, Upper Atmosphere

Scientific paper

A study is conducted of the coupled effects of kinetics, solar cycle flux variations, and vertical transport on the distribution of long-lived hydrogen-carbon-oxygen compounds in the terrestrial mesosphere and lower thermosphere, using a one-dimensional aeronomy model. The calculations account for the important chemical reactions and use rocket measurements of the solar flux at solar minimum and maximum. Photodissociation rates appropriate for the mesosphere are determined with a spherical shell atmosphere formalism. Detailed corrections for the O2 Schumann-Runge bands and the temperature dependence of the CO2 cross sections are used. An eddy diffusion profile is derived which is in agreement with the Aladdin 74 mass spectral measurements of atomic O, O2, CO2, and Ar in the lower thermosphere and observations of the O3 minimum at about 80 km.

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