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Is the dynamic magnetosphere an avalanching system?

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UNSPECIFIED (2000) Is the dynamic magnetosphere an avalanching system? GEOPHYSICAL RESEARCH LETTERS, 27 (7). pp. 911-914. ISSN 0094-8276.

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Abstract

The analogy between the dynamic magnetosphere and an avalanche system is examined by using the global auroral energy deposition obtained by the Polar UVI as a measure of the energy output of the magnetosphere. The analysis reveals two types of energy dissipation: those internal to the magnetosphere occurring at all activity levels with no intrinsic scale, and those associated with active times corresponding to global energy dissipation with a characteristic scale. The internal events exhibit the same power law index in both active and quiet times. These features are consistent with a simple avalanche ('sandpile') numerical model.

Item Type: Journal Article
Subjects: Q Science > QE Geology
Journal or Publication Title: GEOPHYSICAL RESEARCH LETTERS
Publisher: AMER GEOPHYSICAL UNION
ISSN: 0094-8276
Official Date: 1 April 2000
Dates:
DateEvent
1 April 2000UNSPECIFIED
Volume: 27
Number: 7
Number of Pages: 4
Page Range: pp. 911-914
Publication Status: Published

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