F-region electron heating by X-mode radiowaves in underdense conditions

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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Main Authors: H. Löfås, N. Ivchenko, B. Gustavsson, T. B. Leyser, M. T. Rietveld
Format: Article
Language:English
Published: Copernicus Publications 2009-06-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/27/2585/2009/angeo-27-2585-2009.pdf
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spelling 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
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AT hlofarings fregionelectronheatingbyxmoderadiowavesinunderdenseconditions
AT nivchenko fregionelectronheatingbyxmoderadiowavesinunderdenseconditions
AT bgustavsson fregionelectronheatingbyxmoderadiowavesinunderdenseconditions
AT tbleyser fregionelectronheatingbyxmoderadiowavesinunderdenseconditions
AT mtrietveld fregionelectronheatingbyxmoderadiowavesinunderdenseconditions
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