Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/3973| DC Field | Value | Language |
|---|---|---|
| dc.contributor.authorall | Barraclogh, D. R.; British Geological Survey, Edinburgh EH9 3LA, UK | en |
| dc.contributor.authorall | De Santis, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
| dc.date.accessioned | 2008-07-17T07:41:59Z | en |
| dc.date.available | 2008-07-17T07:41:59Z | en |
| dc.date.issued | 1997-02 | en |
| dc.identifier.uri | http://hdl.handle.net/2122/3973 | en |
| dc.description.abstract | The behaviour of the geomagnetic field as observed almost continuously at three European locations over the last 130 years is investigated by means of a non-linear forecasting approach. The analysis of the data in terms of first-differences (secular variation) of the horizontal magnetic components made in phase space with the simplex technique seems to exclude the pre-eminence of any stochastic or periodic behaviour. The dimensionality of the underlying non-linear process and the corresponding largest positive Lyapunov exponent are estimated. The results give some evidence that the geomagnetic field evolves as a non-linear chaotic system with unpredictable behaviour after times greater than a few years, confirming the common practice of updating global models of the geomagnetic field every 5 years. | en |
| dc.language.iso | English | en |
| dc.publisher.name | Elsevier | en |
| dc.relation.ispartof | Physics of the Earth and Planetary Interiors | en |
| dc.relation.ispartofseries | 3-4 / 99 (1997) | en |
| dc.subject | geomagnetic field | en |
| dc.subject | chaos | en |
| dc.subject | non-linear forecasting approach | en |
| dc.title | Some possible evidence for a chaotic geomagnetic field from observational data | en |
| dc.type | article | en |
| dc.description.status | Published | en |
| dc.type.QualityControl | Peer-reviewed | en |
| dc.description.pagenumber | 207-220 | en |
| dc.subject.INGV | 04. Solid Earth::04.01. Earth Interior::04.01.03. Mantle and Core dynamics | en |
| dc.subject.INGV | 04. Solid Earth::04.05. Geomagnetism::04.05.02. Geomagnetic field variations and reversals | en |
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Calculating the rate of loss information from chaotic time series by forecasting. Nature, 350: 485-488. Walker, A.D. and Backus, G.E., 1996. Is the non-dipole magnetic field random? Geophys. J. Int., 124: 315-319. Wolf, A., Swift, J.B., Swinney, H.L. and Vastano, J., 1985. Determining Lyapunov exponents from a time series. Physica, D16: 285-317. | en |
| dc.description.journalType | JCR Journal | en |
| dc.description.fulltext | reserved | en |
| dc.contributor.author | Barraclogh, D. R. | en |
| dc.contributor.author | De Santis, A. | en |
| dc.contributor.department | British Geological Survey, Edinburgh EH9 3LA, UK | en |
| dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
| item.openairetype | article | - |
| item.cerifentitytype | Publications | - |
| item.languageiso639-1 | en | - |
| item.grantfulltext | restricted | - |
| item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
| item.fulltext | With Fulltext | - |
| crisitem.author.dept | British Geological Survey, Edinburgh, U. K. | - |
| crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
| crisitem.author.orcid | 0000-0002-3941-656X | - |
| crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| crisitem.classification.parent | 04. Solid Earth | - |
| crisitem.classification.parent | 04. Solid Earth | - |
| crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| Appears in Collections: | Article published / in press | |
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