Global observations of the zonal drift speed of equatorial ionospheric plasma bubbles
Space-based measurements from an imager aboard the high-apogee NASA-IMAGE satellite allows for global-scale observations of nightside ionospheric densities and structure. Such a view cannot be provided by imagers in near-Earth orbit or based on the ground. The IMAGE Spectroscopic Imager (SI) isolate...
Ausführliche Beschreibung
Autor*in: |
T. J. Immel [verfasserIn] H. U. Frey [verfasserIn] S. B. Mende [verfasserIn] E. Sagawa [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2004 |
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Übergeordnetes Werk: |
In: Annales Geophysicae - Copernicus Publications, 2002, 22(2004), Seite 3099-3107 |
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Übergeordnetes Werk: |
volume:22 ; year:2004 ; pages:3099-3107 |
Links: |
Link aufrufen |
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DOI / URN: |
10.5194/angeo-22-3099-2004 |
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Katalog-ID: |
DOAJ016872096 |
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10.5194/angeo-22-3099-2004 doi (DE-627)DOAJ016872096 (DE-599)DOAJ1a5588f062474dc8a9a28dd66fbc255c DE-627 ger DE-627 rakwb eng QC1-999 QC801-809 T. J. Immel verfasserin aut Global observations of the zonal drift speed of equatorial ionospheric plasma bubbles 2004 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Space-based measurements from an imager aboard the high-apogee NASA-IMAGE satellite allows for global-scale observations of nightside ionospheric densities and structure. Such a view cannot be provided by imagers in near-Earth orbit or based on the ground. The IMAGE Spectroscopic Imager (SI) isolates the Far-ultraviolet (FUV) O I 135.6nm emission which is produced through radiative recombination of O<sup<+</sup<. These observations clearly show the distribution of FUV emissions of the equatorial airglow bands over the range of local times between the evening terminator to points well after midnight. Determination of plasma drift speeds in these local time sectors is performed by identification and subsequent tracking of localized depressions in the FUV emissions. This determination is made for nearly 200 plasma bubbles in the March-May period of 2002. Important findings of this study include (1) an unambiguous association between <i<D<sub<st</sub<</i< and zonal plasma drift speeds, and (2) a longitudinal dependence of the zonal plasma drift speeds, with a peak around the Indian sector. The first effect is attributed to penetrating ring current electric fields, while the second is apparently due to a longitudinal variability in the vertical polarization electric fields that directly affects the zonal plasma drift speeds. Science Q Physics Geophysics. Cosmic physics H. U. Frey verfasserin aut S. B. Mende verfasserin aut E. Sagawa verfasserin aut In Annales Geophysicae Copernicus Publications, 2002 22(2004), Seite 3099-3107 (DE-627)25338981X (DE-600)1458425-6 14320576 nnns volume:22 year:2004 pages:3099-3107 https://doi.org/10.5194/angeo-22-3099-2004 kostenfrei https://doaj.org/article/1a5588f062474dc8a9a28dd66fbc255c kostenfrei https://www.ann-geophys.net/22/3099/2004/angeo-22-3099-2004.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_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 22 2004 3099-3107 |
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10.5194/angeo-22-3099-2004 doi (DE-627)DOAJ016872096 (DE-599)DOAJ1a5588f062474dc8a9a28dd66fbc255c DE-627 ger DE-627 rakwb eng QC1-999 QC801-809 T. J. Immel verfasserin aut Global observations of the zonal drift speed of equatorial ionospheric plasma bubbles 2004 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Space-based measurements from an imager aboard the high-apogee NASA-IMAGE satellite allows for global-scale observations of nightside ionospheric densities and structure. Such a view cannot be provided by imagers in near-Earth orbit or based on the ground. The IMAGE Spectroscopic Imager (SI) isolates the Far-ultraviolet (FUV) O I 135.6nm emission which is produced through radiative recombination of O<sup<+</sup<. These observations clearly show the distribution of FUV emissions of the equatorial airglow bands over the range of local times between the evening terminator to points well after midnight. Determination of plasma drift speeds in these local time sectors is performed by identification and subsequent tracking of localized depressions in the FUV emissions. This determination is made for nearly 200 plasma bubbles in the March-May period of 2002. Important findings of this study include (1) an unambiguous association between <i<D<sub<st</sub<</i< and zonal plasma drift speeds, and (2) a longitudinal dependence of the zonal plasma drift speeds, with a peak around the Indian sector. The first effect is attributed to penetrating ring current electric fields, while the second is apparently due to a longitudinal variability in the vertical polarization electric fields that directly affects the zonal plasma drift speeds. Science Q Physics Geophysics. Cosmic physics H. U. Frey verfasserin aut S. B. Mende verfasserin aut E. Sagawa verfasserin aut In Annales Geophysicae Copernicus Publications, 2002 22(2004), Seite 3099-3107 (DE-627)25338981X (DE-600)1458425-6 14320576 nnns volume:22 year:2004 pages:3099-3107 https://doi.org/10.5194/angeo-22-3099-2004 kostenfrei https://doaj.org/article/1a5588f062474dc8a9a28dd66fbc255c kostenfrei https://www.ann-geophys.net/22/3099/2004/angeo-22-3099-2004.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_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 22 2004 3099-3107 |
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10.5194/angeo-22-3099-2004 doi (DE-627)DOAJ016872096 (DE-599)DOAJ1a5588f062474dc8a9a28dd66fbc255c DE-627 ger DE-627 rakwb eng QC1-999 QC801-809 T. J. Immel verfasserin aut Global observations of the zonal drift speed of equatorial ionospheric plasma bubbles 2004 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Space-based measurements from an imager aboard the high-apogee NASA-IMAGE satellite allows for global-scale observations of nightside ionospheric densities and structure. Such a view cannot be provided by imagers in near-Earth orbit or based on the ground. The IMAGE Spectroscopic Imager (SI) isolates the Far-ultraviolet (FUV) O I 135.6nm emission which is produced through radiative recombination of O<sup<+</sup<. These observations clearly show the distribution of FUV emissions of the equatorial airglow bands over the range of local times between the evening terminator to points well after midnight. Determination of plasma drift speeds in these local time sectors is performed by identification and subsequent tracking of localized depressions in the FUV emissions. This determination is made for nearly 200 plasma bubbles in the March-May period of 2002. Important findings of this study include (1) an unambiguous association between <i<D<sub<st</sub<</i< and zonal plasma drift speeds, and (2) a longitudinal dependence of the zonal plasma drift speeds, with a peak around the Indian sector. The first effect is attributed to penetrating ring current electric fields, while the second is apparently due to a longitudinal variability in the vertical polarization electric fields that directly affects the zonal plasma drift speeds. Science Q Physics Geophysics. Cosmic physics H. U. Frey verfasserin aut S. B. Mende verfasserin aut E. Sagawa verfasserin aut In Annales Geophysicae Copernicus Publications, 2002 22(2004), Seite 3099-3107 (DE-627)25338981X (DE-600)1458425-6 14320576 nnns volume:22 year:2004 pages:3099-3107 https://doi.org/10.5194/angeo-22-3099-2004 kostenfrei https://doaj.org/article/1a5588f062474dc8a9a28dd66fbc255c kostenfrei https://www.ann-geophys.net/22/3099/2004/angeo-22-3099-2004.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_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 22 2004 3099-3107 |
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10.5194/angeo-22-3099-2004 doi (DE-627)DOAJ016872096 (DE-599)DOAJ1a5588f062474dc8a9a28dd66fbc255c DE-627 ger DE-627 rakwb eng QC1-999 QC801-809 T. J. Immel verfasserin aut Global observations of the zonal drift speed of equatorial ionospheric plasma bubbles 2004 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Space-based measurements from an imager aboard the high-apogee NASA-IMAGE satellite allows for global-scale observations of nightside ionospheric densities and structure. Such a view cannot be provided by imagers in near-Earth orbit or based on the ground. The IMAGE Spectroscopic Imager (SI) isolates the Far-ultraviolet (FUV) O I 135.6nm emission which is produced through radiative recombination of O<sup<+</sup<. These observations clearly show the distribution of FUV emissions of the equatorial airglow bands over the range of local times between the evening terminator to points well after midnight. Determination of plasma drift speeds in these local time sectors is performed by identification and subsequent tracking of localized depressions in the FUV emissions. This determination is made for nearly 200 plasma bubbles in the March-May period of 2002. Important findings of this study include (1) an unambiguous association between <i<D<sub<st</sub<</i< and zonal plasma drift speeds, and (2) a longitudinal dependence of the zonal plasma drift speeds, with a peak around the Indian sector. The first effect is attributed to penetrating ring current electric fields, while the second is apparently due to a longitudinal variability in the vertical polarization electric fields that directly affects the zonal plasma drift speeds. Science Q Physics Geophysics. Cosmic physics H. U. Frey verfasserin aut S. B. Mende verfasserin aut E. Sagawa verfasserin aut In Annales Geophysicae Copernicus Publications, 2002 22(2004), Seite 3099-3107 (DE-627)25338981X (DE-600)1458425-6 14320576 nnns volume:22 year:2004 pages:3099-3107 https://doi.org/10.5194/angeo-22-3099-2004 kostenfrei https://doaj.org/article/1a5588f062474dc8a9a28dd66fbc255c kostenfrei https://www.ann-geophys.net/22/3099/2004/angeo-22-3099-2004.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_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 22 2004 3099-3107 |
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10.5194/angeo-22-3099-2004 doi (DE-627)DOAJ016872096 (DE-599)DOAJ1a5588f062474dc8a9a28dd66fbc255c DE-627 ger DE-627 rakwb eng QC1-999 QC801-809 T. J. Immel verfasserin aut Global observations of the zonal drift speed of equatorial ionospheric plasma bubbles 2004 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Space-based measurements from an imager aboard the high-apogee NASA-IMAGE satellite allows for global-scale observations of nightside ionospheric densities and structure. Such a view cannot be provided by imagers in near-Earth orbit or based on the ground. The IMAGE Spectroscopic Imager (SI) isolates the Far-ultraviolet (FUV) O I 135.6nm emission which is produced through radiative recombination of O<sup<+</sup<. These observations clearly show the distribution of FUV emissions of the equatorial airglow bands over the range of local times between the evening terminator to points well after midnight. Determination of plasma drift speeds in these local time sectors is performed by identification and subsequent tracking of localized depressions in the FUV emissions. This determination is made for nearly 200 plasma bubbles in the March-May period of 2002. Important findings of this study include (1) an unambiguous association between <i<D<sub<st</sub<</i< and zonal plasma drift speeds, and (2) a longitudinal dependence of the zonal plasma drift speeds, with a peak around the Indian sector. The first effect is attributed to penetrating ring current electric fields, while the second is apparently due to a longitudinal variability in the vertical polarization electric fields that directly affects the zonal plasma drift speeds. Science Q Physics Geophysics. Cosmic physics H. U. Frey verfasserin aut S. B. Mende verfasserin aut E. Sagawa verfasserin aut In Annales Geophysicae Copernicus Publications, 2002 22(2004), Seite 3099-3107 (DE-627)25338981X (DE-600)1458425-6 14320576 nnns volume:22 year:2004 pages:3099-3107 https://doi.org/10.5194/angeo-22-3099-2004 kostenfrei https://doaj.org/article/1a5588f062474dc8a9a28dd66fbc255c kostenfrei https://www.ann-geophys.net/22/3099/2004/angeo-22-3099-2004.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_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 22 2004 3099-3107 |
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Global observations of the zonal drift speed of equatorial ionospheric plasma bubbles |
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Space-based measurements from an imager aboard the high-apogee NASA-IMAGE satellite allows for global-scale observations of nightside ionospheric densities and structure. Such a view cannot be provided by imagers in near-Earth orbit or based on the ground. The IMAGE Spectroscopic Imager (SI) isolates the Far-ultraviolet (FUV) O I 135.6nm emission which is produced through radiative recombination of O<sup<+</sup<. These observations clearly show the distribution of FUV emissions of the equatorial airglow bands over the range of local times between the evening terminator to points well after midnight. Determination of plasma drift speeds in these local time sectors is performed by identification and subsequent tracking of localized depressions in the FUV emissions. This determination is made for nearly 200 plasma bubbles in the March-May period of 2002. Important findings of this study include (1) an unambiguous association between <i<D<sub<st</sub<</i< and zonal plasma drift speeds, and (2) a longitudinal dependence of the zonal plasma drift speeds, with a peak around the Indian sector. The first effect is attributed to penetrating ring current electric fields, while the second is apparently due to a longitudinal variability in the vertical polarization electric fields that directly affects the zonal plasma drift speeds. |
abstractGer |
Space-based measurements from an imager aboard the high-apogee NASA-IMAGE satellite allows for global-scale observations of nightside ionospheric densities and structure. Such a view cannot be provided by imagers in near-Earth orbit or based on the ground. The IMAGE Spectroscopic Imager (SI) isolates the Far-ultraviolet (FUV) O I 135.6nm emission which is produced through radiative recombination of O<sup<+</sup<. These observations clearly show the distribution of FUV emissions of the equatorial airglow bands over the range of local times between the evening terminator to points well after midnight. Determination of plasma drift speeds in these local time sectors is performed by identification and subsequent tracking of localized depressions in the FUV emissions. This determination is made for nearly 200 plasma bubbles in the March-May period of 2002. Important findings of this study include (1) an unambiguous association between <i<D<sub<st</sub<</i< and zonal plasma drift speeds, and (2) a longitudinal dependence of the zonal plasma drift speeds, with a peak around the Indian sector. The first effect is attributed to penetrating ring current electric fields, while the second is apparently due to a longitudinal variability in the vertical polarization electric fields that directly affects the zonal plasma drift speeds. |
abstract_unstemmed |
Space-based measurements from an imager aboard the high-apogee NASA-IMAGE satellite allows for global-scale observations of nightside ionospheric densities and structure. Such a view cannot be provided by imagers in near-Earth orbit or based on the ground. The IMAGE Spectroscopic Imager (SI) isolates the Far-ultraviolet (FUV) O I 135.6nm emission which is produced through radiative recombination of O<sup<+</sup<. These observations clearly show the distribution of FUV emissions of the equatorial airglow bands over the range of local times between the evening terminator to points well after midnight. Determination of plasma drift speeds in these local time sectors is performed by identification and subsequent tracking of localized depressions in the FUV emissions. This determination is made for nearly 200 plasma bubbles in the March-May period of 2002. Important findings of this study include (1) an unambiguous association between <i<D<sub<st</sub<</i< and zonal plasma drift speeds, and (2) a longitudinal dependence of the zonal plasma drift speeds, with a peak around the Indian sector. The first effect is attributed to penetrating ring current electric fields, while the second is apparently due to a longitudinal variability in the vertical polarization electric fields that directly affects the zonal plasma drift speeds. |
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title_short |
Global observations of the zonal drift speed of equatorial ionospheric plasma bubbles |
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