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www.nonlin-processes-geophys.net/9/419/2002/
doi:10.5194/npg-9-419-2002
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Fractal time statistics of AE-index burst waiting times: evidence of metastability
1Istituto di Fisica dello Spazio Interplanetario – CNR, Roma, Italy
2Istituto Nazionale di Geofisica e Vulcanologia, Roma, Italy
Abstract. Recent observations and analyses evidenced that the magnetotail, as well as the magnetospheric dynamics are characterised by a scale-free behaviour and intermittence. These results, along with numerical simulations on cellular automata, suggest that the observed scale-invariance may be due to forced and/or self-organised criticality (FSOC), meaning that the magnetotail operates near a marginally stable state (Chang, 1999). On the other hand, it was underlined that a complex magnetic field topology in the geotail regions may play a relevant role in the impulsive energy relaxation (Consolini and Chang, 2001.
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Citation: Consolini, G. and De Michelis, P.: Fractal time statistics of AE-index burst waiting times: evidence of metastability, Nonlin. Processes Geophys., 9, 419-423, doi:10.5194/npg-9-419-2002, 2002. Bibtex EndNote Reference Manager XML
