dorsal/arxiv
View SchemaThe clustering of polarity reversals of the geomagnetic field
| Authors | V. Carbone, L. Sorriso-Valvo, A. Vecchio, F. Lepreti, P. Veltri, P. Harabaglia, I. Guerra |
|---|---|
| Categories | |
| ArXiv ID | physics/0603086 |
| URL | https://arxiv.org/abs/physics/0603086 |
| DOI | 10.1103/PhysRevLett.96.128501 |
| Journal | Phys.Rev.Lett. 96 (2006) 128501 |
Abstract
Often in nature the temporal distribution of inhomogeneous stochastic point processes can be modeled as a realization of renewal Poisson processes with a variable rate. Here we investigate one of the classical examples, namely the temporal distribution of polarity reversals of the geomagnetic field. In spite of the commonly used underlying hypothesis, we show that this process strongly departs from a Poisson statistics, the origin of this failure stemming from the presence of temporal clustering. We find that a Levy statistics is able to reproduce paleomagnetic data, thus suggesting the presence of long-range correlations in the underlying dynamo process.
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"abstract": "Often in nature the temporal distribution of inhomogeneous stochastic point\nprocesses can be modeled as a realization of renewal Poisson processes with a\nvariable rate. Here we investigate one of the classical examples, namely the\ntemporal distribution of polarity reversals of the geomagnetic field. In spite\nof the commonly used underlying hypothesis, we show that this process strongly\ndeparts from a Poisson statistics, the origin of this failure stemming from the\npresence of temporal clustering. We find that a Levy statistics is able to\nreproduce paleomagnetic data, thus suggesting the presence of long-range\ncorrelations in the underlying dynamo process.",
"arxiv_id": "physics/0603086",
"authors": [
"V. Carbone",
"L. Sorriso-Valvo",
"A. Vecchio",
"F. Lepreti",
"P. Veltri",
"P. Harabaglia",
"I. Guerra"
],
"categories": [
"physics.geo-ph",
"astro-ph",
"nlin.CD",
"physics.data-an",
"physics.plasm-ph"
],
"doi": "10.1103/PhysRevLett.96.128501",
"journal_ref": "Phys.Rev.Lett. 96 (2006) 128501",
"title": "The clustering of polarity reversals of the geomagnetic field",
"url": "https://arxiv.org/abs/physics/0603086"
},
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