Auroral-arc splitting by intrusion of a new convection channel
During a run of the Common Programme Three of the EISCAT radar the splitting of an auroral arc was observed by high time-resolution, ground-based cameras when the UHF radar beam was close to the arc. The evening eastward electrojet situation with a large-scale northward ionospheric electric field wa...
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Copernicus Publications
1996
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ftdoajarticles:oai:doaj.org/article:8b49083a147f485c96ca0d4cff531ebe 2023-05-15T16:04:38+02:00 Auroral-arc splitting by intrusion of a new convection channel H. U. Frey G. Haerendel S. Buchert B. S. Lanchester 1996-12-01T00:00:00Z https://doi.org/10.1007/s00585-996-1257-2 https://doaj.org/article/8b49083a147f485c96ca0d4cff531ebe EN eng Copernicus Publications https://www.ann-geophys.net/14/1257/1996/angeo-14-1257-1996.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.1007/s00585-996-1257-2 0992-7689 1432-0576 https://doaj.org/article/8b49083a147f485c96ca0d4cff531ebe Annales Geophysicae, Vol 14, Pp 1257-1264 (1996) Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 article 1996 ftdoajarticles https://doi.org/10.1007/s00585-996-1257-2 2022-12-31T01:59:31Z During a run of the Common Programme Three of the EISCAT radar the splitting of an auroral arc was observed by high time-resolution, ground-based cameras when the UHF radar beam was close to the arc. The evening eastward electrojet situation with a large-scale northward ionospheric electric field was disturbed by the intrusion of a convection channel with southward electric field from the east. The interaction of the new convection channel with the auroral arc caused changes in arc brightness and arc splitting, i.e. the creation of a new arc parallel to the pre-existing auroral arc. The event is described as one possibility for the creation of parallel arcs during slightly disturbed magnetic conditions far from the Harang discontinuity. Article in Journal/Newspaper EISCAT Directory of Open Access Journals: DOAJ Articles Annales Geophysicae 14 12 1257 1264 |
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 H. U. Frey G. Haerendel S. Buchert B. S. Lanchester Auroral-arc splitting by intrusion of a new convection channel |
topic_facet |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
description |
During a run of the Common Programme Three of the EISCAT radar the splitting of an auroral arc was observed by high time-resolution, ground-based cameras when the UHF radar beam was close to the arc. The evening eastward electrojet situation with a large-scale northward ionospheric electric field was disturbed by the intrusion of a convection channel with southward electric field from the east. The interaction of the new convection channel with the auroral arc caused changes in arc brightness and arc splitting, i.e. the creation of a new arc parallel to the pre-existing auroral arc. The event is described as one possibility for the creation of parallel arcs during slightly disturbed magnetic conditions far from the Harang discontinuity. |
format |
Article in Journal/Newspaper |
author |
H. U. Frey G. Haerendel S. Buchert B. S. Lanchester |
author_facet |
H. U. Frey G. Haerendel S. Buchert B. S. Lanchester |
author_sort |
H. U. Frey |
title |
Auroral-arc splitting by intrusion of a new convection channel |
title_short |
Auroral-arc splitting by intrusion of a new convection channel |
title_full |
Auroral-arc splitting by intrusion of a new convection channel |
title_fullStr |
Auroral-arc splitting by intrusion of a new convection channel |
title_full_unstemmed |
Auroral-arc splitting by intrusion of a new convection channel |
title_sort |
auroral-arc splitting by intrusion of a new convection channel |
publisher |
Copernicus Publications |
publishDate |
1996 |
url |
https://doi.org/10.1007/s00585-996-1257-2 https://doaj.org/article/8b49083a147f485c96ca0d4cff531ebe |
genre |
EISCAT |
genre_facet |
EISCAT |
op_source |
Annales Geophysicae, Vol 14, Pp 1257-1264 (1996) |
op_relation |
https://www.ann-geophys.net/14/1257/1996/angeo-14-1257-1996.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.1007/s00585-996-1257-2 0992-7689 1432-0576 https://doaj.org/article/8b49083a147f485c96ca0d4cff531ebe |
op_doi |
https://doi.org/10.1007/s00585-996-1257-2 |
container_title |
Annales Geophysicae |
container_volume |
14 |
container_issue |
12 |
container_start_page |
1257 |
op_container_end_page |
1264 |
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1766400243875708928 |