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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 15, issue 10
Ann. Geophys., 15, 1291–1300, 1997
https://doi.org/10.1007/s00585-997-1291-8
© European Geosciences Union 1997
Ann. Geophys., 15, 1291–1300, 1997
https://doi.org/10.1007/s00585-997-1291-8
© European Geosciences Union 1997

  31 Oct 1997

31 Oct 1997

Response of the convecting high-latitude F layer to a powerful HF wave

G. I. Mingaleva and V. S. Mingalev G. I. Mingaleva and V. S. Mingalev
  • Polar Geophysical Institute, Fersman Str. 14, Apatity, Murmansk Region 184200, Russia

Abstract. A numerical model of the high-latitude ionosphere, which takes into account the convection of the ionospheric plasma, has been developed and utilized to simulate the F-layer response at auroral latitudes to high-power radio waves. The model produces the time variations of the electron density, positive ion velocity, and ion and electron temperature profiles within a magnetic field tube carried over an ionospheric heater by the convection electric field. The simulations have been performed for the point with the geographic coordinates of the ionospheric HF heating facility near Tromso, Norway, when it is located near the midnight magnetic meridian. The calculations have been made for equinox, at high-solar-activity, and low-geomagnetic-activity conditions. The results indicate that significant variations of the electron temperature, positive ion velocity, and electron density profiles can be produced by HF heating in the convecting high-latitude F layer.

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