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Substorm theories: United they stand, divided they fallConsensus on the timing and mapping of substorm features has permitted a synthesis of substorm models. Within the synthesis model the mechanism for onset of substorm expansion is still unknown. Possible mechanisms are: growth of an ion tearing mode, current disruption by a cross-field current instability, and magnetosphere-ionosphere coupling. While the synthesis model is consistent with overall substorm morphology, including near-Earth onset, none of the onset theories, taken individually, appear to account for substorm expansion onset. A grand synthesis with unification of the underlying onset theories appears necessary.
Document ID
19950015909
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Erickson, Gary M. (Boston Univ. Boston, MA, United States)
Date Acquired
September 6, 2013
Publication Date
January 4, 1995
Subject Category
Geophysics
Report/Patent Number
NAS 1.26:197672
F19628-90-K-0003
NASA-CR-197672
Accession Number
95N22326
Funding Number(s)
CONTRACT_GRANT: NAGW-2856
CONTRACT_GRANT: F19628-90-K-0003
CONTRACT_GRANT: NAGW-2627
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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