Letter to the editor: The ionospheric response during an interval of Pc5 ULF wave activity
A preliminary analysis of Pc5, ULF wave activity observed with the IMAGE magnetometer array and the EISCAT UHF radar in the post midnight sector indicates that such waves can be caused by the modulation of the ionospheric conductivity as well as the wave electric field. An observed Pc5 pulsation is...
Ausführliche Beschreibung
Autor*in: |
M. Lester [verfasserIn] J. A. Davies [verfasserIn] T. K. Yeoman [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2000 |
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Übergeordnetes Werk: |
In: Annales Geophysicae - Copernicus Publications, 2002, 18(2000), Seite 257-261 |
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Übergeordnetes Werk: |
volume:18 ; year:2000 ; pages:257-261 |
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Link aufrufen |
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DOI / URN: |
10.1007/s00585-000-0257-x |
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Katalog-ID: |
DOAJ072987405 |
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10.1007/s00585-000-0257-x doi (DE-627)DOAJ072987405 (DE-599)DOAJ7129262106fb464183d9cbc46aeeee2c DE-627 ger DE-627 rakwb eng QC1-999 QC801-809 M. Lester verfasserin aut Letter to the editor: The ionospheric response during an interval of Pc5 ULF wave activity 2000 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A preliminary analysis of Pc5, ULF wave activity observed with the IMAGE magnetometer array and the EISCAT UHF radar in the post midnight sector indicates that such waves can be caused by the modulation of the ionospheric conductivity as well as the wave electric field. An observed Pc5 pulsation is divided into three separate intervals based upon the EISCAT data. In the first and third, the Pc5 waves are observed only in the measured electron density between 90 and 112 km and maxima in the electron density at these altitudes are attributed to pulsed precipitation of electrons with energies up to 40 keV which result in the height integrated Hall conductivity being pulsed between 10 and 50 S. In the second interval, the Pc5 wave is observed in the F-region ion temperature, electron density and electron temperature but not in the D and E region electron densities. The analysis suggests that the wave during this interval is a coupled Alfven and compressional mode.<br<<br<<b<Key words:</b< Ionosphere (electric fields and currents) - Magnetospheric physics (magnetosphere-ionosphere interaction; MHD waves and instabilities) Science Q Physics Geophysics. Cosmic physics M. Lester verfasserin aut J. A. Davies verfasserin aut J. A. Davies verfasserin aut T. K. Yeoman verfasserin aut T. K. Yeoman verfasserin aut In Annales Geophysicae Copernicus Publications, 2002 18(2000), Seite 257-261 (DE-627)25338981X (DE-600)1458425-6 14320576 nnns volume:18 year:2000 pages:257-261 https://doi.org/10.1007/s00585-000-0257-x kostenfrei https://doaj.org/article/7129262106fb464183d9cbc46aeeee2c kostenfrei https://www.ann-geophys.net/18/257/2000/angeo-18-257-2000.pdf kostenfrei https://doaj.org/toc/0992-7689 Journal toc kostenfrei https://doaj.org/toc/1432-0576 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2014 GBV_ILN_2048 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2000 257-261 |
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10.1007/s00585-000-0257-x doi (DE-627)DOAJ072987405 (DE-599)DOAJ7129262106fb464183d9cbc46aeeee2c DE-627 ger DE-627 rakwb eng QC1-999 QC801-809 M. Lester verfasserin aut Letter to the editor: The ionospheric response during an interval of Pc5 ULF wave activity 2000 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A preliminary analysis of Pc5, ULF wave activity observed with the IMAGE magnetometer array and the EISCAT UHF radar in the post midnight sector indicates that such waves can be caused by the modulation of the ionospheric conductivity as well as the wave electric field. An observed Pc5 pulsation is divided into three separate intervals based upon the EISCAT data. In the first and third, the Pc5 waves are observed only in the measured electron density between 90 and 112 km and maxima in the electron density at these altitudes are attributed to pulsed precipitation of electrons with energies up to 40 keV which result in the height integrated Hall conductivity being pulsed between 10 and 50 S. In the second interval, the Pc5 wave is observed in the F-region ion temperature, electron density and electron temperature but not in the D and E region electron densities. The analysis suggests that the wave during this interval is a coupled Alfven and compressional mode.<br<<br<<b<Key words:</b< Ionosphere (electric fields and currents) - Magnetospheric physics (magnetosphere-ionosphere interaction; MHD waves and instabilities) Science Q Physics Geophysics. Cosmic physics M. Lester verfasserin aut J. A. Davies verfasserin aut J. A. Davies verfasserin aut T. K. Yeoman verfasserin aut T. K. Yeoman verfasserin aut In Annales Geophysicae Copernicus Publications, 2002 18(2000), Seite 257-261 (DE-627)25338981X (DE-600)1458425-6 14320576 nnns volume:18 year:2000 pages:257-261 https://doi.org/10.1007/s00585-000-0257-x kostenfrei https://doaj.org/article/7129262106fb464183d9cbc46aeeee2c kostenfrei https://www.ann-geophys.net/18/257/2000/angeo-18-257-2000.pdf kostenfrei https://doaj.org/toc/0992-7689 Journal toc kostenfrei https://doaj.org/toc/1432-0576 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2014 GBV_ILN_2048 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2000 257-261 |
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10.1007/s00585-000-0257-x doi (DE-627)DOAJ072987405 (DE-599)DOAJ7129262106fb464183d9cbc46aeeee2c DE-627 ger DE-627 rakwb eng QC1-999 QC801-809 M. Lester verfasserin aut Letter to the editor: The ionospheric response during an interval of Pc5 ULF wave activity 2000 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A preliminary analysis of Pc5, ULF wave activity observed with the IMAGE magnetometer array and the EISCAT UHF radar in the post midnight sector indicates that such waves can be caused by the modulation of the ionospheric conductivity as well as the wave electric field. An observed Pc5 pulsation is divided into three separate intervals based upon the EISCAT data. In the first and third, the Pc5 waves are observed only in the measured electron density between 90 and 112 km and maxima in the electron density at these altitudes are attributed to pulsed precipitation of electrons with energies up to 40 keV which result in the height integrated Hall conductivity being pulsed between 10 and 50 S. In the second interval, the Pc5 wave is observed in the F-region ion temperature, electron density and electron temperature but not in the D and E region electron densities. The analysis suggests that the wave during this interval is a coupled Alfven and compressional mode.<br<<br<<b<Key words:</b< Ionosphere (electric fields and currents) - Magnetospheric physics (magnetosphere-ionosphere interaction; MHD waves and instabilities) Science Q Physics Geophysics. Cosmic physics M. Lester verfasserin aut J. A. Davies verfasserin aut J. A. Davies verfasserin aut T. K. Yeoman verfasserin aut T. K. Yeoman verfasserin aut In Annales Geophysicae Copernicus Publications, 2002 18(2000), Seite 257-261 (DE-627)25338981X (DE-600)1458425-6 14320576 nnns volume:18 year:2000 pages:257-261 https://doi.org/10.1007/s00585-000-0257-x kostenfrei https://doaj.org/article/7129262106fb464183d9cbc46aeeee2c kostenfrei https://www.ann-geophys.net/18/257/2000/angeo-18-257-2000.pdf kostenfrei https://doaj.org/toc/0992-7689 Journal toc kostenfrei https://doaj.org/toc/1432-0576 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2014 GBV_ILN_2048 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2000 257-261 |
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10.1007/s00585-000-0257-x doi (DE-627)DOAJ072987405 (DE-599)DOAJ7129262106fb464183d9cbc46aeeee2c DE-627 ger DE-627 rakwb eng QC1-999 QC801-809 M. Lester verfasserin aut Letter to the editor: The ionospheric response during an interval of Pc5 ULF wave activity 2000 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A preliminary analysis of Pc5, ULF wave activity observed with the IMAGE magnetometer array and the EISCAT UHF radar in the post midnight sector indicates that such waves can be caused by the modulation of the ionospheric conductivity as well as the wave electric field. An observed Pc5 pulsation is divided into three separate intervals based upon the EISCAT data. In the first and third, the Pc5 waves are observed only in the measured electron density between 90 and 112 km and maxima in the electron density at these altitudes are attributed to pulsed precipitation of electrons with energies up to 40 keV which result in the height integrated Hall conductivity being pulsed between 10 and 50 S. In the second interval, the Pc5 wave is observed in the F-region ion temperature, electron density and electron temperature but not in the D and E region electron densities. The analysis suggests that the wave during this interval is a coupled Alfven and compressional mode.<br<<br<<b<Key words:</b< Ionosphere (electric fields and currents) - Magnetospheric physics (magnetosphere-ionosphere interaction; MHD waves and instabilities) Science Q Physics Geophysics. Cosmic physics M. Lester verfasserin aut J. A. Davies verfasserin aut J. A. Davies verfasserin aut T. K. Yeoman verfasserin aut T. K. Yeoman verfasserin aut In Annales Geophysicae Copernicus Publications, 2002 18(2000), Seite 257-261 (DE-627)25338981X (DE-600)1458425-6 14320576 nnns volume:18 year:2000 pages:257-261 https://doi.org/10.1007/s00585-000-0257-x kostenfrei https://doaj.org/article/7129262106fb464183d9cbc46aeeee2c kostenfrei https://www.ann-geophys.net/18/257/2000/angeo-18-257-2000.pdf kostenfrei https://doaj.org/toc/0992-7689 Journal toc kostenfrei https://doaj.org/toc/1432-0576 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2014 GBV_ILN_2048 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2000 257-261 |
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Letter to the editor: The ionospheric response during an interval of Pc5 ULF wave activity |
abstract |
A preliminary analysis of Pc5, ULF wave activity observed with the IMAGE magnetometer array and the EISCAT UHF radar in the post midnight sector indicates that such waves can be caused by the modulation of the ionospheric conductivity as well as the wave electric field. An observed Pc5 pulsation is divided into three separate intervals based upon the EISCAT data. In the first and third, the Pc5 waves are observed only in the measured electron density between 90 and 112 km and maxima in the electron density at these altitudes are attributed to pulsed precipitation of electrons with energies up to 40 keV which result in the height integrated Hall conductivity being pulsed between 10 and 50 S. In the second interval, the Pc5 wave is observed in the F-region ion temperature, electron density and electron temperature but not in the D and E region electron densities. The analysis suggests that the wave during this interval is a coupled Alfven and compressional mode.<br<<br<<b<Key words:</b< Ionosphere (electric fields and currents) - Magnetospheric physics (magnetosphere-ionosphere interaction; MHD waves and instabilities) |
abstractGer |
A preliminary analysis of Pc5, ULF wave activity observed with the IMAGE magnetometer array and the EISCAT UHF radar in the post midnight sector indicates that such waves can be caused by the modulation of the ionospheric conductivity as well as the wave electric field. An observed Pc5 pulsation is divided into three separate intervals based upon the EISCAT data. In the first and third, the Pc5 waves are observed only in the measured electron density between 90 and 112 km and maxima in the electron density at these altitudes are attributed to pulsed precipitation of electrons with energies up to 40 keV which result in the height integrated Hall conductivity being pulsed between 10 and 50 S. In the second interval, the Pc5 wave is observed in the F-region ion temperature, electron density and electron temperature but not in the D and E region electron densities. The analysis suggests that the wave during this interval is a coupled Alfven and compressional mode.<br<<br<<b<Key words:</b< Ionosphere (electric fields and currents) - Magnetospheric physics (magnetosphere-ionosphere interaction; MHD waves and instabilities) |
abstract_unstemmed |
A preliminary analysis of Pc5, ULF wave activity observed with the IMAGE magnetometer array and the EISCAT UHF radar in the post midnight sector indicates that such waves can be caused by the modulation of the ionospheric conductivity as well as the wave electric field. An observed Pc5 pulsation is divided into three separate intervals based upon the EISCAT data. In the first and third, the Pc5 waves are observed only in the measured electron density between 90 and 112 km and maxima in the electron density at these altitudes are attributed to pulsed precipitation of electrons with energies up to 40 keV which result in the height integrated Hall conductivity being pulsed between 10 and 50 S. In the second interval, the Pc5 wave is observed in the F-region ion temperature, electron density and electron temperature but not in the D and E region electron densities. The analysis suggests that the wave during this interval is a coupled Alfven and compressional mode.<br<<br<<b<Key words:</b< Ionosphere (electric fields and currents) - Magnetospheric physics (magnetosphere-ionosphere interaction; MHD waves and instabilities) |
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Letter to the editor: The ionospheric response during an interval of Pc5 ULF wave activity |
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