Magnetic field reversals and long-time memory in conducting flows

AMS Citation:
Dmitruk, P., P. D. Mininni, A. Pouquet, S. Servidio, and W. H. Matthaeus, 2014: Magnetic field reversals and long-time memory in conducting flows. Physical Review E, 90, 043010, doi:10.1103/PhysRevE.90.043010.
Date:2014-10-16
Resource Type:article
Title:Magnetic field reversals and long-time memory in conducting flows
Abstract: Employing a simple ideal magnetohydrodynamic model in spherical geometry, we show that the presence of either rotation or finite magnetic helicity is sufficient to induce dynamical reversals of the magnetic dipole moment. The statistical character of the model is similar to that of terrestrial magnetic field reversals, with the similarity being stronger when rotation is present. The connection between long-time correlations, 1/f noise, and statistics of reversals is supported, consistent with earlier suggestions.
Peer Review:Refereed
Copyright Information:Copyright 2014 American Physical Society.
OpenSky citable URL: ark:/85065/d78k7b25
Publisher's Version: 10.1103/PhysRevE.90.043010
Author(s):
  • P. Dmitruk
  • Pablo Mininni - NCAR/UCAR
  • Annick Pouquet - NCAR/UCAR
  • S. Servidio
  • W. Matthaeus
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