| Abstract: | Cubic spline fits to the DGRF/IGRF series indicate agreement with other analyses showing the 1969-1970 magnetic jerk in the h ??12 and g ??02 secular change coefficients, and agreement that the h ??11 term showed no sharp change. The variation of the g ??01 term is out of phase with other analyses indicating a likely error in its representation in the 1965-1975 interval. We recommend that future derivations of the ‘definitive‘ geomagnetic reference models take into consideration the times of impulses or jerks so as to not be bound to a standard 5 year interval, and otherwise to make more considered analyses before adopting sets of coefficients. ?? 1987. |
| Genre: | Article |
| ProdID: | 70014204 |
| Citation Author: | Thompson, D.; Cain, J. C. |
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| Citation End Page: | 388 |
| Citation Issue: | 3-4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Physics of the Earth and Planetary Interiors |
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| Citation Number Of Pages: | 3 |
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| Citation Publisher: | Elsevier |
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| Citation Search Results Text: | The geomagnetic jerk of 1969 and the DGRFs; 1987; Article; Journal; Physics of the Earth and Planetary Interiors; Thompson, D.; Cain, J. C. |
| Citation Start Page: | 386 |
| Citation Volume: | 48 |
| Citation Year: | 1987 |
| Type: | citation/reference |
| Text: | The geomagnetic jerk of 1969 and the DGRFs; 1987; Article; Journal; Physics of the Earth and Planetary Interiors; Thompson, D.; Cain, J. C. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1016/0031-9201(87)90163-4 |
| Date Other: | Thu, 1 Jan 1987 00:00 -0600 |
| Publisher: | Elsevier |
