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Record Details

Record 46 of 1446
Low-dimensional chaos in magnetospheric activity from AE time series
Author and Affiliation:
Vassiliadis, D. V.(Maryland Univ., College Park, MD, United States)
Sharma, A. S.(Maryland Univ., College Park, MD, United States)
Eastman, T. E.(Maryland Univ., College Park, MD, United States)
Papadopoulos, K.(Maryland, University, College Park, United States)
Abstract: The magnetospheric response to the solar-wind input, as represented by the time-series measurements of the auroral electrojet (AE) index, has been examined using phase-space reconstruction techniques. The system was found to behave as a low-dimensional chaotic system with a fractal dimension of 3.6 and has Kolmogorov entropy less than 0.2/min. These indicate that the dynamics of the system can be adequately described by four independent variables, and that the corresponding intrinsic time scale is of the order of 5 min. The relevance of the results to magnetospheric modeling is discussed.
Publication Date: Oct 01, 1990
Document ID:
19910026437
(Acquired Nov 28, 1995)
Accession Number: 91A11060
Subject Category: GEOPHYSICS
Document Type: Journal Article
Publication Information: Geophysical Research Letters (ISSN 0094-8276); 17; 1841-184
Publisher Information: United States
Contract/Grant/Task Num: NAG5-1101
Financial Sponsor: NASA; United States
Organization Source: Maryland Univ.; College Park, MD, United States
Description: 4p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: AURORAL ELECTROJETS; CHAOS; MAGNETOSPHERIC INSTABILITY; SOLAR WIND; TIME SERIES ANALYSIS; EQUATIONS OF MOTION; INTERPLANETARY MAGNETIC FIELDS; KOLMOGOROV THEORY
Imprint And Other Notes: Geophysical Research Letters (ISSN 0094-8276), vol. 17, Oct. 1990, p. 1841-1844.
Availability Source: Other Sources
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