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F-region electron heating by X-mode radiowaves in underdense conditions
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
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2009 (English)In: Annales Geophysicae, ISSN 0992-7689, E-ISSN 1432-0576, Vol. 27, no 6, 2585-2592 p.Article in journal (Refereed) Published
Abstract [en]

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 300-400K 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.

Place, publisher, year, edition, pages
2009. Vol. 27, no 6, 2585-2592 p.
Keyword [en]
Ionosphere, Wave propagation, Radio science, Ionospheric propagation, Waves in plasma
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-128403ISI: 000267543600031OAI: oai:DiVA.org:uu-128403DiVA: diva2:331528
Available from: 2010-07-23 Created: 2010-07-20 Last updated: 2017-12-12Bibliographically approved

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Löfås, Henrik

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