Statistical Analysis of Magnetic Field Reversals in Laboratory Dynamo and Paleomagnetic Measurements
First published: 2010
Brief summary
Compares statistical reversal patterns from a laboratory dynamo experiment to 160-million-year paleomagnetic record, finding reversal intervals ranging from 10,000 to 10 million years.
Article
Statistical Analysis of Magnetic Field Reversals in Laboratory Dynamo and Paleomagnetic Measurements is a preprint published by arXiv in 2010. It compares statistical reversal patterns from a laboratory dynamo experiment to 160-million-year paleomagnetic record, finding reversal intervals ranging from 10,000 to 10 million years.
Period range: reversal intervals from 10^4 to 10^7 years. The data source is 160-million-year paleomagnetic record plus laboratory dynamo experiment data. This gives the cycle claim a specific numerical and evidential setting rather than presenting periodicity only as a visual impression.
The article reports the following result: Geomagnetic measurements of the last 160 million years present sudden and occasional polarity reversals, with the typical time interval between successive reversals ranging from 10^4 up to 10^7 years. The interpretation is strongest when measurement uncertainty, nonlinear dynamics, boundary conditions and alternative physical mechanisms are tested explicitly.
For cycles researchers, the article brings together geomagnetic reversals, laboratory dynamo, paleomagnetism, reversal intervals. It is relevant to physical and geophysical systems in which oscillation, reversal, recurrence and nonlinear dynamics must be distinguished from random variability.
Because it is a preprint, the work should be read alongside later peer-reviewed publications and independent replications. It remains useful because the proposed cycle, dataset and analytical approach are stated clearly enough to be scrutinised.
Source details and credits
- Source / publisher: arXiv
- Source type: Preprint
- URL type: PDF
- Credits: arXiv
- URL: https://arxiv.org/pdf/1003.0531