Localized sudden changes in the geomagnetic secular variation.
Journal of Geomagnetism & Geoelectricity
By: L.R. Alldredge
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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
| 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 |
| Google Analytic Metrics | Metrics page |