Response of the convecting highlatitude F layer to a powerful HF
Abstract. A numerical model of the high-latitude iono-sphere, 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 vari-ations of the electron de...
| Main Authors: | , |
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| Format: | Text |
| Language: | English |
| Published: |
1997
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| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.2908 http://www.ann-geophys.net/15/1291/1997/angeo-15-1291-1997.pdf |
| Summary: | Abstract. A numerical model of the high-latitude iono-sphere, 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 vari-ations 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 con-vection electric field. The simulations have been per-formed 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 elec-tron temperature, positive ion velocity, and electron den-sity profiles can be produced by HF heating in the convecting high-latitude F layer. 1 |
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