Ohmic heating of the polar F region by HF pulses

Details Ohmic heating of the polar F region by HF pulses Ohmic heating of the polar F region by HF pulses

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jgr....89.2907s&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 89, May 1, 1984, p. 2907-2917. Navy-supported research.

Physics

16

Atmospheric Heating, F Region, High Frequencies, Ohmic Dissipation, Polar Regions, Pulse Heating, Electron Energy, Ionospheric Electron Density, Particle Collisions, Plasma Density

Scientific paper

A study of the modifications produced by high-power, high-frequency (HF) waves in the F region of a quiet (low solar cycle) polar ionosphere is presented. In the polar geometry, maximum ohmic heating occurs producing significant changes to the zero-order electron temperature and density profiles. The temporal and spatial aspects of these changes are calculated, and their effects on relevant ionospheric parameters, such as the dc conductivity tensor, are found. An interesting result is the generation of a density depression at the reflection point of the HF waves. The dependence of ohmic heating on HF pump parameters and peak background density is considered.

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