Electron density changes in the nighttime D region due to heating by very-low-frequency transmitters

Details Electron density changes in the nighttime D region due to heating by very-low-frequency transmitters Electron density changes in the nighttime D region due to heating by very-low-frequency transmitters

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21...93r&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 2, p. 93-96

Physics

15

Atmospheric Chemistry, Atmospheric Ionization, D Region, Ionospheric Electron Density, Ionospheric Heating, Night, Radio Transmitters, Very Low Frequencies, Electron Recombination, Electrons, Graphs (Charts), Lightning, Negative Ions, Positive Ions, Recombination Coefficient, Remote Sensing, Tables (Data), Variations

Scientific paper

Modification of the nighttime D region electron density (N(sub e)) due to heating by very-low-frequency (VLF) transmitters is investigated theoretically using a four-species model of the ion chemistry. The effects of a 100 kW, a 265 kW, and a 1000 kW VLF transmitter are calculated for three ambient N(sub e) profiles. Results indicate that N(sub e) is reduced by up to 26% at approximately 80 km altitude over a 1000 kW transmitter.

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