Multi-scale magnetic field intermittence in the plasma sheet
Balogh, A.; Zhang, T. L.; Klecker, B.; Horbury, T. S.; Nakamura, R.; Baumjohann, W.; Volwerk, M.; Rème, H.; Runov, A.; Vörös, Z.; Eichelberger, H. U.; Glaßmeier, K. -H.
Abstract
This paper demonstrates that intermittent magnetic field fluctuations in the plasma sheet exhibit transitory, localized, and multi-scale features. We propose a multifractal-based algorithm, which quantifies intermittence on the basis of the statistical distribution of the strength of burstiness , estimated within a sliding window. Interesting multi-scale phenomena observed by the Cluster spacecraft include large-scale motion of the current sheet and bursty bulk flow associated turbulence, interpreted as a cross-scale coupling (CSC) process.