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Is the AE index the result of nonlinear dynamics?
Author(s) -
Prichard D.,
Price C. P.
Publication year - 1993
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/93gl03012
Subject(s) - chaotic , nonlinear system , interval (graph theory) , index (typography) , earth's magnetic field , statistical physics , dynamics (music) , physics , geophysics , geology , mathematics , computer science , magnetic field , acoustics , combinatorics , quantum mechanics , artificial intelligence , world wide web
Recently there as been much interest in determining if the global geomagnetic system, as characterized by AE and AL indices, can be described by a low dimensional, possibly chaotic, non‐linear dynamical system. By using a statistical method for detecting nonlinearity, we show that for one interval which has been previous analyzed (the first 8192 minutes of January 1983) there is no evidence for low dimensional behavior.