Recombination in the upper ionosphere

Details Recombination in the upper ionosphere Recombination in the upper ionosphere

Mar 1962

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1962jatp...24..145b&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 24, no. 3, pp. 145-153

Physics

1

Scientific paper

In this study two things are shown: 1. (1) Presupposing the usually assumed reactions for the production and disappearance of electrons and positive ions, the best approximation for the processes occurring in the F-layer at sunrise and in the morning is a law of quasi-recombination. The recombinationcoefficient can be assumed as equal to the rate coefficient of the reaction NO+ + e --> O* + N*; 2. (2) With simultaneous excitement of oxygen and nitrogen atoms at this process, the reaction will be of endothermic character. Consequently, only particles with a kinetic energy exceeding a critical value E0 can take part in this reaction. On this condition, the collision frequency for a certain range of temperature will be directly proportional to temperature. Thus it is concluded that for a certain range of temperature the recombination-coefficient mentioned above will also show an approximately linear increase with temperature. So the electron balance of the F-layer--at least during the early morning hours--can be formulated as follows: q = [alpha]0 · T · n2. This is in accordance with the results derived by (1961) from N(h)-profiles.

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