Variations in the strength of the Sq current system

The strength of the Sq current system is measured by taking the difference between magnetic variations on either side of the current system focus. This is carried out for several longitude sectors. A distinct semiannual variation is sometimes found but its incidence varies with longitude, local time...

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Main Author: R. J. Stening
Format: Article
Language:English
Published: Copernicus Publications
Series:Annales Geophysicae
Online Access:http://www.ann-geophys.net/13/627/1995/angeo-13-627-1995.html
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spelling doaj-ceb60aefe40042738a2e482018451f722020-11-24T21:27:43ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-0576136627632Variations in the strength of the Sq current systemR. J. SteningThe strength of the Sq current system is measured by taking the difference between magnetic variations on either side of the current system focus. This is carried out for several longitude sectors. A distinct semiannual variation is sometimes found but its incidence varies with longitude, local time and hemisphere. Other semiannual effects in the ionosphere are reviewed and the possibility of a diurnal modulation of the strength of the 12-h tide is suggested. http://www.ann-geophys.net/13/627/1995/angeo-13-627-1995.html
collection DOAJ
language English
format Article
sources DOAJ
author R. J. Stening
spellingShingle R. J. Stening
Variations in the strength of the Sq current system
Annales Geophysicae
author_facet R. J. Stening
author_sort R. J. Stening
title Variations in the strength of the Sq current system
title_short Variations in the strength of the Sq current system
title_full Variations in the strength of the Sq current system
title_fullStr Variations in the strength of the Sq current system
title_full_unstemmed Variations in the strength of the Sq current system
title_sort variations in the strength of the sq current system
publisher Copernicus Publications
series Annales Geophysicae
issn 0992-7689
1432-0576
description The strength of the Sq current system is measured by taking the difference between magnetic variations on either side of the current system focus. This is carried out for several longitude sectors. A distinct semiannual variation is sometimes found but its incidence varies with longitude, local time and hemisphere. Other semiannual effects in the ionosphere are reviewed and the possibility of a diurnal modulation of the strength of the 12-h tide is suggested.
url http://www.ann-geophys.net/13/627/1995/angeo-13-627-1995.html
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