Robustness and scaling: key observables in the complex dynamic magnetosphere

Chapman, S.C.; Denby, R.O.; Watkins, N.W.. 2004 Robustness and scaling: key observables in the complex dynamic magnetosphere. Plasma Physics and Controlled Fusion, 42 (12B). B157-B166. 10.1088/0741-3335/46/12B/014

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Abstract/Summary

Plasma transport and energy dissipation in the driven dynamic magnetosphere are intermittent (bursty), and occur on a range of spatiotemporal scales. System observables such as geomagnetic indices, and auroral images, show evidence of scaling in the statistics of these events. Taken together these are hallmarks of a complex system. Here we underline the importance of robustness in these statistical signatures with respect to variability in the drive, and of bursty transport as opposed to intermittent structures, as key signatures of nonlinear complex avalanching systems. Power law statistics of bursty events do not necessarily require an underlying nonlinearity.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1088/0741-3335/46/12B/014
Programmes:	BAS Programmes > Antarctic Science in the Global Context (2000-2005) > Magnetic Reconnection, Substorms and their Consequences
ISSN:	0741-3335
NORA Subject Terms:	Physics Atmospheric Sciences
Date made live:	12 Jan 2012 09:32 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/12116

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