F-region electron heating by X-mode radiowaves in underdense conditions
Observations of modifications of the electron temperature in the F-region produced by powerful high frequency radiowaves at 4.04 MHz transmitted in X-mode are presented. The experiments were performed during quiet nighttime conditions with low ionospheric densities so no reflections occurred. El...
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Copernicus Publications
2009-06-01
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Series: | Annales Geophysicae |
Online Access: | https://www.ann-geophys.net/27/2585/2009/angeo-27-2585-2009.pdf |
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doaj-e9f954ed10844a949c0d93937e1891f02020-11-25T01:57:41ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05762009-06-01272585259210.5194/angeo-27-2585-2009F-region electron heating by X-mode radiowaves in underdense conditionsH. Löfås0H. Löfås1N. Ivchenko2B. Gustavsson3T. B. Leyser4M. T. Rietveld5Uppsala University, Uppsala, SwedenSpace and Plasma Physics, School of Electrical Engineering, KTH, Stockholm, SwedenSpace and Plasma Physics, School of Electrical Engineering, KTH, Stockholm, SwedenUniv Tromsø, Dept Phys & Technol, 9037 Tromsø, NorwaySwedish Institute of Space Physics, Uppsala, SwedenEISCAT, 9027 Ramfjordbotn, NorwayObservations of modifications of the electron temperature in the F-region produced by powerful high frequency radiowaves at 4.04 MHz transmitted in X-mode are presented. The experiments were performed during quiet nighttime conditions with low ionospheric densities so no reflections occurred. Electron temperature enhancements of the order of 300–400 K were obtained. Numerical simulation of ohmic heating by the pump wave reproduces both altitude profiles and temporal dependence of the temperature modifications in the experiments.https://www.ann-geophys.net/27/2585/2009/angeo-27-2585-2009.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
H. Löfås H. Löfås N. Ivchenko B. Gustavsson T. B. Leyser M. T. Rietveld |
spellingShingle |
H. Löfås H. Löfås N. Ivchenko B. Gustavsson T. B. Leyser M. T. Rietveld F-region electron heating by X-mode radiowaves in underdense conditions Annales Geophysicae |
author_facet |
H. Löfås H. Löfås N. Ivchenko B. Gustavsson T. B. Leyser M. T. Rietveld |
author_sort |
H. Löfås |
title |
F-region electron heating by X-mode radiowaves in underdense conditions |
title_short |
F-region electron heating by X-mode radiowaves in underdense conditions |
title_full |
F-region electron heating by X-mode radiowaves in underdense conditions |
title_fullStr |
F-region electron heating by X-mode radiowaves in underdense conditions |
title_full_unstemmed |
F-region electron heating by X-mode radiowaves in underdense conditions |
title_sort |
f-region electron heating by x-mode radiowaves in underdense conditions |
publisher |
Copernicus Publications |
series |
Annales Geophysicae |
issn |
0992-7689 1432-0576 |
publishDate |
2009-06-01 |
description |
Observations of modifications of the electron temperature in the F-region
produced by powerful high frequency radiowaves at 4.04 MHz transmitted in
X-mode are presented. The experiments were performed during quiet nighttime
conditions with low ionospheric densities so no reflections occurred.
Electron temperature enhancements of the order of 300–400 K were obtained.
Numerical simulation of ohmic heating by the pump wave reproduces both
altitude profiles and temporal dependence of the temperature modifications in
the experiments. |
url |
https://www.ann-geophys.net/27/2585/2009/angeo-27-2585-2009.pdf |
work_keys_str_mv |
AT hlofarings fregionelectronheatingbyxmoderadiowavesinunderdenseconditions AT hlofarings fregionelectronheatingbyxmoderadiowavesinunderdenseconditions AT nivchenko fregionelectronheatingbyxmoderadiowavesinunderdenseconditions AT bgustavsson fregionelectronheatingbyxmoderadiowavesinunderdenseconditions AT tbleyser fregionelectronheatingbyxmoderadiowavesinunderdenseconditions AT mtrietveld fregionelectronheatingbyxmoderadiowavesinunderdenseconditions |
_version_ |
1724973155755229184 |