MAGNETIC FIELD FLUCTUATIONS IN THE PLASMA SHEET REGION: A STATISTICAL APPROACH
2005
Abstract. Recent observation of magnetic field fluctuations in the geotail regions evidenced the occurrence of sporadic, localized multiscale turbulent fluctuations. In this work, we approach these fluctuations from a statistical point of view, showing the existence of non-trivial scaling features and similarity of the observed scaling properties with those of a stochastic process generated by an Ornstein-Uhlembeck-Cauchy equation. Our results will be discussed in the framework of the recent stochastic view of the geotail dynamics in terms of a forced and/or self-organized criticality.
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