Geofísica Internacional (Jul 2008)

Study of the turbulence in the central plasma sheet during August 24-28 geomagnetic storm using the CLUSTER satellite data

  • J. M. Bosqued,
  • M. Stepanova,
  • K. Arancibia Riveros,
  • E. E. Antonova

Journal volume & issue
Vol. 47, no. 3
pp. 265 – 271

Abstract

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We used the local Intermittency Measure Technique based on the wavelet transform to study plasma velocity fluctuations measured by CLUSTER II Ion Spectrometry experiment during August 24-28 geomagnetic storm. The results obtained showed a significant increase in the level of intermittent turbulence at the end of main phase. It can be related to a significant increase in the substorm activity, and stretching of the geomagnetic field lines observed during the main phase. This fact is important for understanding the nature of geomagnetic storms.

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