VHF scintillations, orientation of the anisotropy of F-region irregularities and direction of plasma convection in the polar cap
Scintillation data recorded at the polar cap station Barentsburg are shown to occasionally exhibit two or more peaks in the latitudinal profiles of the amplitude dispersion. Comparison with concurrent SuperDARN radar convection maps indicates that multiple peaks occur when Barentsburg is located wit...
Published in: | Annales Geophysicae |
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Language: | English |
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Copernicus Publications
2008
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Online Access: | https://doi.org/10.5194/angeo-26-1725-2008 https://doaj.org/article/903304c242284628860c45d185532810 |
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ftdoajarticles:oai:doaj.org/article:903304c242284628860c45d185532810 2023-05-15T15:39:16+02:00 VHF scintillations, orientation of the anisotropy of F-region irregularities and direction of plasma convection in the polar cap E. D. Tereshchenko N. Yu. Romanova A. V. Koustov 2008-06-01T00:00:00Z https://doi.org/10.5194/angeo-26-1725-2008 https://doaj.org/article/903304c242284628860c45d185532810 EN eng Copernicus Publications https://www.ann-geophys.net/26/1725/2008/angeo-26-1725-2008.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-26-1725-2008 0992-7689 1432-0576 https://doaj.org/article/903304c242284628860c45d185532810 Annales Geophysicae, Vol 26, Pp 1725-1730 (2008) Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 article 2008 ftdoajarticles https://doi.org/10.5194/angeo-26-1725-2008 2022-12-31T15:39:12Z Scintillation data recorded at the polar cap station Barentsburg are shown to occasionally exhibit two or more peaks in the latitudinal profiles of the amplitude dispersion. Comparison with concurrent SuperDARN radar convection maps indicates that multiple peaks occur when Barentsburg is located within the area of strong changes in the plasma flow direction. When parameters of the ionospheric irregularities are inferred from the scintillation data, the orientation of the irregularity anisotropy in a plane perpendicular to the magnetic field is found to coincide well with the E × B flow direction, individually for each peak of the scintillation data. The differences were found to be mostly less than 20° for a data set comprised of 104 events. The conclusion is made that analysis of scintillation data allows one to infer the direction of plasma flow with a certain degree of detail. Article in Journal/Newspaper Barentsburg Directory of Open Access Journals: DOAJ Articles Barentsburg ENVELOPE(14.212,14.212,78.064,78.064) Annales Geophysicae 26 7 1725 1730 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 E. D. Tereshchenko N. Yu. Romanova A. V. Koustov VHF scintillations, orientation of the anisotropy of F-region irregularities and direction of plasma convection in the polar cap |
topic_facet |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
description |
Scintillation data recorded at the polar cap station Barentsburg are shown to occasionally exhibit two or more peaks in the latitudinal profiles of the amplitude dispersion. Comparison with concurrent SuperDARN radar convection maps indicates that multiple peaks occur when Barentsburg is located within the area of strong changes in the plasma flow direction. When parameters of the ionospheric irregularities are inferred from the scintillation data, the orientation of the irregularity anisotropy in a plane perpendicular to the magnetic field is found to coincide well with the E × B flow direction, individually for each peak of the scintillation data. The differences were found to be mostly less than 20° for a data set comprised of 104 events. The conclusion is made that analysis of scintillation data allows one to infer the direction of plasma flow with a certain degree of detail. |
format |
Article in Journal/Newspaper |
author |
E. D. Tereshchenko N. Yu. Romanova A. V. Koustov |
author_facet |
E. D. Tereshchenko N. Yu. Romanova A. V. Koustov |
author_sort |
E. D. Tereshchenko |
title |
VHF scintillations, orientation of the anisotropy of F-region irregularities and direction of plasma convection in the polar cap |
title_short |
VHF scintillations, orientation of the anisotropy of F-region irregularities and direction of plasma convection in the polar cap |
title_full |
VHF scintillations, orientation of the anisotropy of F-region irregularities and direction of plasma convection in the polar cap |
title_fullStr |
VHF scintillations, orientation of the anisotropy of F-region irregularities and direction of plasma convection in the polar cap |
title_full_unstemmed |
VHF scintillations, orientation of the anisotropy of F-region irregularities and direction of plasma convection in the polar cap |
title_sort |
vhf scintillations, orientation of the anisotropy of f-region irregularities and direction of plasma convection in the polar cap |
publisher |
Copernicus Publications |
publishDate |
2008 |
url |
https://doi.org/10.5194/angeo-26-1725-2008 https://doaj.org/article/903304c242284628860c45d185532810 |
long_lat |
ENVELOPE(14.212,14.212,78.064,78.064) |
geographic |
Barentsburg |
geographic_facet |
Barentsburg |
genre |
Barentsburg |
genre_facet |
Barentsburg |
op_source |
Annales Geophysicae, Vol 26, Pp 1725-1730 (2008) |
op_relation |
https://www.ann-geophys.net/26/1725/2008/angeo-26-1725-2008.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-26-1725-2008 0992-7689 1432-0576 https://doaj.org/article/903304c242284628860c45d185532810 |
op_doi |
https://doi.org/10.5194/angeo-26-1725-2008 |
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Annales Geophysicae |
container_volume |
26 |
container_issue |
7 |
container_start_page |
1725 |
op_container_end_page |
1730 |
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1766370770844385280 |