Observation of an inner magnetosphere electric field associated with a BBF-like flow and PBIs
Themis E observed a perpendicular (to the magnetic field) electric field associated with an Earthward plasma flow at X GSM =−9.6 R E on 11 January 2008. The electric field observation resembles Cluster observations closer to Earth in the auroral region. The fast plasma flow shared some characteristi...
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ftdoajarticles:oai:doaj.org/article:6e4ee527758a48b586dffdadf19a2fd4 2023-05-15T18:04:29+02:00 Observation of an inner magnetosphere electric field associated with a BBF-like flow and PBIs T. Johansson J. W. Bonnell C. Cully E. Donovan J. Raeder S. Eriksson L. Andersson R. E. Ergun V. Angelopoulos J. McFadden K.-H. Glassmeier I. Mann 2009-04-01T00:00:00Z https://doi.org/10.5194/angeo-27-1489-2009 https://doaj.org/article/6e4ee527758a48b586dffdadf19a2fd4 EN eng Copernicus Publications https://www.ann-geophys.net/27/1489/2009/angeo-27-1489-2009.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-27-1489-2009 0992-7689 1432-0576 https://doaj.org/article/6e4ee527758a48b586dffdadf19a2fd4 Annales Geophysicae, Vol 27, Pp 1489-1500 (2009) Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 article 2009 ftdoajarticles https://doi.org/10.5194/angeo-27-1489-2009 2022-12-31T12:01:20Z Themis E observed a perpendicular (to the magnetic field) electric field associated with an Earthward plasma flow at X GSM =−9.6 R E on 11 January 2008. The electric field observation resembles Cluster observations closer to Earth in the auroral region. The fast plasma flow shared some characteristics with bursty bulk flows (BBFs) but did not meet the usual criteria in maximum velocity and duration to qualify as one. Themis C observed the same flow further downtail but Themis D, separated by only 1 R E in azimuthal direction from Themis E, did not. At the time of the electric field and ion flow event, the all-sky imager and ground-based magnetometer at Rankin Inlet observed Poleward Boundary Intensifications (PBIs) and a negative bay signature. None of the other Themis ground-based observatories recorded any significant auroral or magnetic field activity, indicating that this was a localized activity. The joint Themis in situ and ground-based observations suggest that the two observations are related. This indicates that auroral electric fields can extend to regions much farther out than previously seen in Cluster observations. Article in Journal/Newspaper Rankin Inlet Directory of Open Access Journals: DOAJ Articles Rankin Inlet ENVELOPE(-91.983,-91.983,62.734,62.734) Annales Geophysicae 27 4 1489 1500 |
institution |
Open Polar |
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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 T. Johansson J. W. Bonnell C. Cully E. Donovan J. Raeder S. Eriksson L. Andersson R. E. Ergun V. Angelopoulos J. McFadden K.-H. Glassmeier I. Mann Observation of an inner magnetosphere electric field associated with a BBF-like flow and PBIs |
topic_facet |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
description |
Themis E observed a perpendicular (to the magnetic field) electric field associated with an Earthward plasma flow at X GSM =−9.6 R E on 11 January 2008. The electric field observation resembles Cluster observations closer to Earth in the auroral region. The fast plasma flow shared some characteristics with bursty bulk flows (BBFs) but did not meet the usual criteria in maximum velocity and duration to qualify as one. Themis C observed the same flow further downtail but Themis D, separated by only 1 R E in azimuthal direction from Themis E, did not. At the time of the electric field and ion flow event, the all-sky imager and ground-based magnetometer at Rankin Inlet observed Poleward Boundary Intensifications (PBIs) and a negative bay signature. None of the other Themis ground-based observatories recorded any significant auroral or magnetic field activity, indicating that this was a localized activity. The joint Themis in situ and ground-based observations suggest that the two observations are related. This indicates that auroral electric fields can extend to regions much farther out than previously seen in Cluster observations. |
format |
Article in Journal/Newspaper |
author |
T. Johansson J. W. Bonnell C. Cully E. Donovan J. Raeder S. Eriksson L. Andersson R. E. Ergun V. Angelopoulos J. McFadden K.-H. Glassmeier I. Mann |
author_facet |
T. Johansson J. W. Bonnell C. Cully E. Donovan J. Raeder S. Eriksson L. Andersson R. E. Ergun V. Angelopoulos J. McFadden K.-H. Glassmeier I. Mann |
author_sort |
T. Johansson |
title |
Observation of an inner magnetosphere electric field associated with a BBF-like flow and PBIs |
title_short |
Observation of an inner magnetosphere electric field associated with a BBF-like flow and PBIs |
title_full |
Observation of an inner magnetosphere electric field associated with a BBF-like flow and PBIs |
title_fullStr |
Observation of an inner magnetosphere electric field associated with a BBF-like flow and PBIs |
title_full_unstemmed |
Observation of an inner magnetosphere electric field associated with a BBF-like flow and PBIs |
title_sort |
observation of an inner magnetosphere electric field associated with a bbf-like flow and pbis |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doi.org/10.5194/angeo-27-1489-2009 https://doaj.org/article/6e4ee527758a48b586dffdadf19a2fd4 |
long_lat |
ENVELOPE(-91.983,-91.983,62.734,62.734) |
geographic |
Rankin Inlet |
geographic_facet |
Rankin Inlet |
genre |
Rankin Inlet |
genre_facet |
Rankin Inlet |
op_source |
Annales Geophysicae, Vol 27, Pp 1489-1500 (2009) |
op_relation |
https://www.ann-geophys.net/27/1489/2009/angeo-27-1489-2009.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-27-1489-2009 0992-7689 1432-0576 https://doaj.org/article/6e4ee527758a48b586dffdadf19a2fd4 |
op_doi |
https://doi.org/10.5194/angeo-27-1489-2009 |
container_title |
Annales Geophysicae |
container_volume |
27 |
container_issue |
4 |
container_start_page |
1489 |
op_container_end_page |
1500 |
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1766175877994905600 |