Deterministic dynamics of the magnetosphere: results of the 0-1 test

被引：10
|
作者：
Devi, S. Prabin [1 ]
Singh, S. B. [1 ]
Sharma, A. Surjalal [2 ,3 ]
机构：
[1] Manipur Univ, Dept Phys, Imphal 795003, Manipur, India
[2] Univ Maryland, Dept Astron, College Pk, MD 20742 USA
[3] DM Coll Sci Complex, Res Inst Sci & Technol, Imphal 795001, Manipur, India
来源：
NONLINEAR PROCESSES IN GEOPHYSICS | 2013年 / 20卷 / 01期
关键词：
SELF-ORGANIZED CRITICALITY; TIME-SERIES; AE-INDEX; CHAOS; PREDICTION; DIMENSION; 0-1-TEST; BEHAVIOR;
D O I：
10.5194/npg-20-11-2013
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
A test for deterministic dynamics in a time series data, namely the 0-1 test (Gottawald and Melbourne, 2004, 2005), is used to study the magnetospheric dynamics. The data, corresponding to the same time period, of the auroral electrojet index AL and the magnetic field component B-z of the solar wind magnetic field measured at 1 AU are used to compute the parameter K, which is zero for non-chaotic and unity for chaotic systems. For the magnetosphere and also for the turbulent solar wind, K has values corresponding to a nonlinear dynamical system with chaotic behaviour. This result is consistent with the Lyapunov exponents computed from the same time series data.
引用
收藏
页码：11 / 18
页数：8
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