The association between giant pulsations (Pgs) and the auroral oval
Two features of giant pulsations (Pgs) which still require an explanation are firstly, why Pgs occur mainly in the early morning sector (i.e. 03:00-07:00 MLT) and not at other times of day, and secondly, why Pgs occur preferentially in a narrow latitudinal band (approximately 63°-68° geomagnetic lat...
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Language: | English |
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Springer Verlag
1994
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00038114 2023-05-15T16:04:40+02:00 The association between giant pulsations (Pgs) and the auroral oval Chisham, G. Orr, D. 1994-06 electronic https://doi.org/10.1007/s00585-994-0649-4 https://noa.gwlb.de/receive/cop_mods_00038114 eng eng Springer Verlag Annales Geophysicae -- http://www.bibliothek.uni-regensburg.de/ezeit/?1458425 -- https://www.ann-geophys.net/ -- https://www.ann-geophys.net/volumes.html -- http://link.springer.com/journal/585 -- 1432-0576 https://doi.org/10.1007/s00585-994-0649-4 https://noa.gwlb.de/receive/cop_mods_00038114 https://open-access.net/ uneingeschränkt info:eu-repo/semantics/restrictedAccess article Verlagsveröffentlichung article Text doc-type:article 1994 ftnonlinearchiv https://doi.org/10.1007/s00585-994-0649-4 2022-02-08T22:43:12Z Two features of giant pulsations (Pgs) which still require an explanation are firstly, why Pgs occur mainly in the early morning sector (i.e. 03:00-07:00 MLT) and not at other times of day, and secondly, why Pgs occur preferentially in a narrow latitudinal band (approximately 63°-68° geomagnetic latitude). Using statistics from 34 Pg events observed by the EISCAT magnetometer cross, a comparison has been made between the location of the Pg resonant field lines and the equatorward edge of the auroral oval. The majority of these Pg events appear to occur just poleward of this boundary. Using these results, an explanation of the two features of Pgs as detailed above is made. This explanation involves the interaction of protons, which may be responsible for the Pg events, with the inner edge of the plasma sheet or with its ionospheric equivalent, the equatorward edge of the auroral oval. Article in Journal/Newspaper EISCAT Niedersächsisches Online-Archiv NOA Annales Geophysicae 12 7 649 654 |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Chisham, G. Orr, D. The association between giant pulsations (Pgs) and the auroral oval |
topic_facet |
article Verlagsveröffentlichung |
description |
Two features of giant pulsations (Pgs) which still require an explanation are firstly, why Pgs occur mainly in the early morning sector (i.e. 03:00-07:00 MLT) and not at other times of day, and secondly, why Pgs occur preferentially in a narrow latitudinal band (approximately 63°-68° geomagnetic latitude). Using statistics from 34 Pg events observed by the EISCAT magnetometer cross, a comparison has been made between the location of the Pg resonant field lines and the equatorward edge of the auroral oval. The majority of these Pg events appear to occur just poleward of this boundary. Using these results, an explanation of the two features of Pgs as detailed above is made. This explanation involves the interaction of protons, which may be responsible for the Pg events, with the inner edge of the plasma sheet or with its ionospheric equivalent, the equatorward edge of the auroral oval. |
format |
Article in Journal/Newspaper |
author |
Chisham, G. Orr, D. |
author_facet |
Chisham, G. Orr, D. |
author_sort |
Chisham, G. |
title |
The association between giant pulsations (Pgs) and the auroral oval |
title_short |
The association between giant pulsations (Pgs) and the auroral oval |
title_full |
The association between giant pulsations (Pgs) and the auroral oval |
title_fullStr |
The association between giant pulsations (Pgs) and the auroral oval |
title_full_unstemmed |
The association between giant pulsations (Pgs) and the auroral oval |
title_sort |
association between giant pulsations (pgs) and the auroral oval |
publisher |
Springer Verlag |
publishDate |
1994 |
url |
https://doi.org/10.1007/s00585-994-0649-4 https://noa.gwlb.de/receive/cop_mods_00038114 |
genre |
EISCAT |
genre_facet |
EISCAT |
op_relation |
Annales Geophysicae -- http://www.bibliothek.uni-regensburg.de/ezeit/?1458425 -- https://www.ann-geophys.net/ -- https://www.ann-geophys.net/volumes.html -- http://link.springer.com/journal/585 -- 1432-0576 https://doi.org/10.1007/s00585-994-0649-4 https://noa.gwlb.de/receive/cop_mods_00038114 |
op_rights |
https://open-access.net/ uneingeschränkt info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00585-994-0649-4 |
container_title |
Annales Geophysicae |
container_volume |
12 |
container_issue |
7 |
container_start_page |
649 |
op_container_end_page |
654 |
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1766400282647855104 |