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Localized sudden changes in the geomagnetic secular variation.

Journal of Geomagnetism & Geoelectricity

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Abstract

There is much debate as to whether there was a worldwide geomagnetic jerk in 1969 or 1970. It is agreed that there was an unusual sharp change in the secular variation in the east component, Y, in Europe at that time. This note points out how a localized sudden change in the secular variation pattern of one component in Europe can occur without having any large worldwide effects in any of the components. The accompanying changes in the spherical harmonic coefficients for such a localized change are also discussed. -after Author

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Localized sudden changes in the geomagnetic secular variation.
Series title:
Journal of Geomagnetism & Geoelectricity
Volume
39
Issue:
2
Year Published:
1987
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Geomagnetism & Geoelectricity
First page:
111
Last page:
118