The behavior of electron density and temperature during ionospheric heating near the fifth electron gyrofrequency
Published by AGU. Copyright (2017) American Geophysical Union. Source at http://doi.org/10.1002/ 2016JA023121 The experimental phenomena involving the changes in electron temperature and electron density as a function of pump frequency during an ionospheric heating campaign at European Incoherent Sc...
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ftunivtroemsoe:oai:munin.uit.no:10037/10867 2023-05-15T18:34:42+02:00 The behavior of electron density and temperature during ionospheric heating near the fifth electron gyrofrequency Wu, Jun Wu, Jian Rietveld, Michael T. Häggström, I. Zhao, Haisheng Xu, Zhengwen 2017-01-27 https://hdl.handle.net/10037/10867 eng eng American Geophysical Union Journal of Geophysical Research - Space Physics Wu J, Wu J, Rietveld MT, Häggström I, Zhao, Xu. The behavior of electron density and temperature during ionospheric heating near the fifth electron gyrofrequency. Journal of Geophysical Research - Space Physics. 2017;122 FRIDAID 1452185 10.1002/ 2016JA023121 2169-9380 2169-9402 https://hdl.handle.net/10037/10867 openAccess VDP::Mathematics and natural science: 400::Physics: 430::Space and plasma physics: 437 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437 electron density temperature ionospheric heating fifth electron gyrofrequency pump frequency UHF radar plasma reflection altitude Journal article Tidsskriftartikkel Peer reviewed 2017 ftunivtroemsoe 2021-06-25T17:55:08Z Published by AGU. Copyright (2017) American Geophysical Union. Source at http://doi.org/10.1002/ 2016JA023121 The experimental phenomena involving the changes in electron temperature and electron density as a function of pump frequency during an ionospheric heating campaign at European Incoherent Scatter near Tromsø, Norway, are reported. When the pump frequency is slightly above the fifth electron gyrofrequency, the UHF radar observation shows some apparent enhancements over a wide altitude range in radar echo, ion line, and electron density respectively, which are apparently altitude independent and consistent temporally with the upshifting and spread of plasma line around the reflection altitude. However, they do not, in fact, correspond to true increase in electron density. Based on some existing theories, some discussions are presented to try to explain the above enhancements and the upshifting and spread of plasma line. Even so, the mechanism remains to be determined. In addition, the observation also shows some enhancements in electron temperature as a function of pump frequency around the reflection altitude of the pump, which are dependent on the behavior of dispersion of the upper hybrid wave near the fifth electron gyrofrequency. Article in Journal/Newspaper Tromsø University of Tromsø: Munin Open Research Archive Norway Tromsø |
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University of Tromsø: Munin Open Research Archive |
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ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Physics: 430::Space and plasma physics: 437 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437 electron density temperature ionospheric heating fifth electron gyrofrequency pump frequency UHF radar plasma reflection altitude |
spellingShingle |
VDP::Mathematics and natural science: 400::Physics: 430::Space and plasma physics: 437 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437 electron density temperature ionospheric heating fifth electron gyrofrequency pump frequency UHF radar plasma reflection altitude Wu, Jun Wu, Jian Rietveld, Michael T. Häggström, I. Zhao, Haisheng Xu, Zhengwen The behavior of electron density and temperature during ionospheric heating near the fifth electron gyrofrequency |
topic_facet |
VDP::Mathematics and natural science: 400::Physics: 430::Space and plasma physics: 437 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437 electron density temperature ionospheric heating fifth electron gyrofrequency pump frequency UHF radar plasma reflection altitude |
description |
Published by AGU. Copyright (2017) American Geophysical Union. Source at http://doi.org/10.1002/ 2016JA023121 The experimental phenomena involving the changes in electron temperature and electron density as a function of pump frequency during an ionospheric heating campaign at European Incoherent Scatter near Tromsø, Norway, are reported. When the pump frequency is slightly above the fifth electron gyrofrequency, the UHF radar observation shows some apparent enhancements over a wide altitude range in radar echo, ion line, and electron density respectively, which are apparently altitude independent and consistent temporally with the upshifting and spread of plasma line around the reflection altitude. However, they do not, in fact, correspond to true increase in electron density. Based on some existing theories, some discussions are presented to try to explain the above enhancements and the upshifting and spread of plasma line. Even so, the mechanism remains to be determined. In addition, the observation also shows some enhancements in electron temperature as a function of pump frequency around the reflection altitude of the pump, which are dependent on the behavior of dispersion of the upper hybrid wave near the fifth electron gyrofrequency. |
format |
Article in Journal/Newspaper |
author |
Wu, Jun Wu, Jian Rietveld, Michael T. Häggström, I. Zhao, Haisheng Xu, Zhengwen |
author_facet |
Wu, Jun Wu, Jian Rietveld, Michael T. Häggström, I. Zhao, Haisheng Xu, Zhengwen |
author_sort |
Wu, Jun |
title |
The behavior of electron density and temperature during ionospheric heating near the fifth electron gyrofrequency |
title_short |
The behavior of electron density and temperature during ionospheric heating near the fifth electron gyrofrequency |
title_full |
The behavior of electron density and temperature during ionospheric heating near the fifth electron gyrofrequency |
title_fullStr |
The behavior of electron density and temperature during ionospheric heating near the fifth electron gyrofrequency |
title_full_unstemmed |
The behavior of electron density and temperature during ionospheric heating near the fifth electron gyrofrequency |
title_sort |
behavior of electron density and temperature during ionospheric heating near the fifth electron gyrofrequency |
publisher |
American Geophysical Union |
publishDate |
2017 |
url |
https://hdl.handle.net/10037/10867 |
geographic |
Norway Tromsø |
geographic_facet |
Norway Tromsø |
genre |
Tromsø |
genre_facet |
Tromsø |
op_relation |
Journal of Geophysical Research - Space Physics Wu J, Wu J, Rietveld MT, Häggström I, Zhao, Xu. The behavior of electron density and temperature during ionospheric heating near the fifth electron gyrofrequency. Journal of Geophysical Research - Space Physics. 2017;122 FRIDAID 1452185 10.1002/ 2016JA023121 2169-9380 2169-9402 https://hdl.handle.net/10037/10867 |
op_rights |
openAccess |
_version_ |
1766219588399267840 |