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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 25, issue 1
Ann. Geophys., 25, 13–17, 2007
https://doi.org/10.5194/angeo-25-13-2007
© Author(s) 2007. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 25, 13–17, 2007
https://doi.org/10.5194/angeo-25-13-2007
© Author(s) 2007. This work is distributed under
the Creative Commons Attribution 3.0 License.

  01 Feb 2007

01 Feb 2007

Spatial structure of plasma flow associated turbulence in the Earth's plasma sheet

Z. Vörös1,2, W. Baumjohann1, R. Nakamura1, A. Runov1, M. Volwerk1,3, T. Takada1, E. A. Lucek4, and H. Rème5 Z. Vörös et al.
  • 1Space Research Institute, Austrian Academy of Sciences, Graz, Austria
  • 2Institute of Atmospheric Physics, Prague, Czech Republic
  • 3Max-Plank-Institut für extraterrestrische Physik, Garching, Germany
  • 4Imperial College, London, UK
  • 5CESR/CNSR, Toulouse, France

Abstract. Using Cluster multipoint magnetic and plasma measurements we analyze the spatial structure of plasma flow-associated turbulence on 26 September 2005. The fortunate relative configuration of the spacecraft and the plasma flow allowed for the first time to compare the scale evolution of statistical moments both at the boundary and in the central part of the flow at the same time. The simultaneous increase of skewness and kurtosis at the boundary of the plasma flow over the time scale of seconds provides evidence for the existence of nonlocal coupling in flow-associated turbulence in the Earth's plasma sheet.

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