Physics
Scientific paper
Mar 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jatp...42..275t&link_type=abstract
Journal of Atmospheric and Terrestrial Physics, vol. 42, Mar. 1980, p. 275-285.
Physics
9
Atmospheric Chemistry, D Region, Ionic Reactions, Ionospheric Heating, Radio Frequency Heating, Rarefied Plasmas, Electron Attachment, Electron Energy, Electron-Ion Recombination, Ionospheric Ion Density, Plasma Density, Time Dependence, Wave Propagation
Scientific paper
A simplified D-region ion chemistry scheme is combined with plausible models for the electron temperature dependence of electron attachment and ion-electron recombination processes in order to study plasma density modifications induced by continuous high power radio wave heating. Enhancement of the electron temperature in the D-region by radio wave heating causes increased electron attachment and decreased recombination. The increase in attachment produces a rapid decrease in electron density while enlarging the negative ion concentration on a time scale of several seconds or less. On the other hand decreased recombination leads to increases in the positive ion and electron densities on a time scale of several minutes to an hour. These two effects compete to determine the electron density distribution in the D-region during radio wave heating.
Ferraro A. J.
Lee Hye-Sung
Mitra A. P.
Tomko A. A.
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