Influence of a high-power radio wave on velocity gradient driven instabilities in the auroral F region ionosphere

Details Influence of a high-power radio wave on velocity gradient driven instabilities in the auroral F region ionosphere Influence of a high-power radio wave on velocity gradient driven instabilities in the auroral F region ionosphere

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....97.1313s&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, Feb. 1, 1992, p. 1313-1317. Research supported by DFG.

Physics

3

Auroral Electrojets, F Region, Ionospheric Heating, Radio Frequency Heating, Nonthermal Radiation, Plasma-Electromagnetic Interaction, Space Plasmas

Scientific paper

It is shown that a powerful radio wave passing through the F region of the auroral ionosphere can modify the ion velocity gradient driven LF electrostatic fluctuation spectra due to parametric interaction processes. These are studied with the help of a nonlinear dispersion relation that includes the ponderomotive and differential Joule heating nonlinearities. The results show how nonthermal fluctuations can be produced and controlled by a powerful radio wave in the auroral-F-region plasma.

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