Characteristics of ionospheric ELF radiation generated by HF heating

Details Characteristics of ionospheric ELF radiation generated by HF heating Characteristics of ionospheric ELF radiation generated by HF heating

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jatp...46..855f&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 46, Oct. 1984, p. 855-865.

Physics

27

D Region, Extremely Low Frequencies, High Frequencies, Ionospheric Propagation, Radio Frequency Heating, Electron Energy, Frequency Response, Polarization (Waves), Wave Interaction

Scientific paper

This paper describes new observations of the characteristics of ELF generation produced by modulation of the dynamo current system from HF heating of the ionospheric D-region. A model of the ELF antenna structure embedded in the D-region is described and stepped ELF frequency observations are shown to support the model assumptions. Presented are data on the phase height of the ELF ionospheric antenna versus ELF frequency, polarization of the downgoing wave and relationship to the dynamo current direction, correlation of ELF field strength with per cent cross-modulation, power linearity tests and duty cycle results. All observations used the high power heater facility of the Arecibo Observatory.

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