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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
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Volume 12, issue 5
Nonlin. Processes Geophys., 12, 725–732, 2005
https://doi.org/10.5194/npg-12-725-2005
© Author(s) 2005. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

Special issue: Nonlinear and multiscale phenomena in space plasmas

Nonlin. Processes Geophys., 12, 725–732, 2005
https://doi.org/10.5194/npg-12-725-2005
© Author(s) 2005. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  27 Jul 2005

27 Jul 2005

Dissipation scales in the Earth's plasma sheet estimated from Cluster measurements

Z. Vörös1, W. Baumjohann1, R. Nakamura1, A. Runov1, M. Volwerk1, H. Schwarzl2, A. Balogh3, and H. Rème4 Z. Vörös et al.
  • 1Space Research Institute, Austrian Academy of Sciences, Graz, Austria
  • 2University of California, Los Angeles, USA
  • 3Imperial College, London, UK
  • 4CESR/CNRS, Toulouse, France

Abstract. In order to estimate the dissipation time-scale in magnetic turbulence in the plasma sheet a novel method is introduced for classification of velocity dependent patterns of two-point probability density functions' shapes near their maxima. For the first time, we provide evidence for Reynolds number (velocity) dependent widening of the inertial range in the plasma sheet. Since spectral widening of the inertial range is a generic feature of many turbulent flows, its examination can facilitate the recognition of intermittent turbulence in the plasma sheet.

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