A study of alternative schemes for extrapolation of secular variation at observatories
Physics of the Earth and Planetary Interiors
By: L.R. Alldredge
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Abstract
The geomagnetic secular variation is not well known. This limits the useful life of geomagnetic models. The secular variation is usually assumed to be linear with time. It is found that attenative schemes that employ quasiperiodic variations from internal and external sources can improve the extrapolation of secular variation at high-quality observatories. Although the schemes discussed are not yet fully applicable in worldwide model making, they do suggest some basic ideas that may be developed into useful tools in future model work. ?? 1976.
Suggested Citation
Alldredge, L., 1976, A study of alternative schemes for extrapolation of secular variation at observatories: Physics of the Earth and Planetary Interiors, v. 11, no. 4, https://doi.org/10.1016/0031-9201(76)90015-7.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A study of alternative schemes for extrapolation of secular variation at observatories |
| Series title | Physics of the Earth and Planetary Interiors |
| DOI | 10.1016/0031-9201(76)90015-7 |
| Volume | 11 |
| Issue | 4 |
| Year Published | 1976 |
| Language | English |
| Publisher | Elsevier |
| Publisher location | Amsterdam, Netherlands |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Physics of the Earth and Planetary Interiors |