Scaling in the space climatology of auroral indices: is SOC the only possible description?
Watkins, N.W.. 2002 Scaling in the space climatology of auroral indices: is SOC the only possible description? Nonlinear Processes in Geophysics, 9 (5-6). 389-397.Full text not available from this repository.
The study of the robust features of the magnetosphere is motivated both by new “whole system” approaches, and by the idea of “space climate” as opposed to “space weather”. We enumerate these features for the AE index, and discuss whether self-organised criticality (SOC) is the most natural explanation of the “stylised facts” so far known for AE. We identify and discuss some open questions, answers to which will clarify the extent to which AE’s properties provide evidence for SOC. We then suggest an SOC-like reconnection-based scenario drawing on the result of Craig (2001) as an explanation of the very recent demonstration by Uritsky et al. (2001b) of power laws in several properties of spatiotemporal features seen in auroral images.
|Programmes:||BAS Programmes > Antarctic Science in the Global Context (2000-2005) > Magnetic Reconnection, Substorms and their Consequences|
|Additional Information:||Open access journal|
|Date made live:||28 Mar 2012 11:47|
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