Negative ion chemistry in the terrestrial D region and signal flow graph theory

Details Negative ion chemistry in the terrestrial D region and signal flow graph theory Negative ion chemistry in the terrestrial D region and signal flow graph theory

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85.4642w&link_type=abstract

Journal of Geophysical Research, vol. 85, Sept. 1, 1980, p. 4642-4652.

Physics

9

Atmospheric Chemistry, D Region, Pair Production, Signal Flow Graphs, Atmospheric Models, Electron-Ion Recombination, Ion Production Rates, Positive Ions, Reaction Kinetics

Scientific paper

A technique for the analysis of D region ion chemistry is introduced which considers the large chemical system as a signal flow graph, thereby allowing a quantitative evaluation of the various paths and loops. A negative ion model for daytime conditions is derived and briefly described. A reference model for the negative ions is analyzed in terms of transmittances, path gains, and loop gains. With this model, a parametric analysis at a 65-km altitude is made, illustrating how variations of the neutral model can lead to different negative ion concentrations without any transformation of the adopted reaction rates.

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