Fractal time statistics of AE-index burst waiting times: evidence of metastability
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 &l...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2002-01-01
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| Series: | Nonlinear Processes in Geophysics |
| Online Access: | http://www.nonlin-processes-geophys.net/9/419/2002/npg-9-419-2002.pdf |
| Summary: | 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 <i>forced and/or self-organised criticality </i>(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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| ISSN: | 1023-5809 1607-7946 |