Dynamical complexity in Dst time series using non-extensive Tsallis entropy

被引：65

作者：

Balasis, Georgios ^{[1
]}

Daglis, Ioannis A. ^{[1
]}

Papadimitriou, Constantinos ^{[2
]}

Kalimeri, Maria ^{[2
]}

Anastasiadis, Anastasios ^{[1
]}

Eftaxias, Konstantinos ^{[2
]}

机构：

[1] Natl Observ Athens, Inst Space Applicat & Remote Sensing, GR-15236 Athens, Greece

[2] Univ Athens, Dept Phys, Sect Solid State Phys, GR-15784 Athens, Greece

来源：

GEOPHYSICAL RESEARCH LETTERS | 2008年 / 35卷 / 14期

关键词：

D O I：

10.1029/2008GL034743

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Nonlinearly evolving dynamical systems, such as space plasmas, generate complex fluctuations in their output signals that reflect the underlying dynamics. The non-extensive Tsallis entropy has been proposed as a measure to investigate the complexity of system dynamics. We employ this method for analyzing D-st time series. The results show that Tsallis entropy can effectively detect the dissimilarity of complexity between the pre-storm activity and intense magnetic storms (D-st < -150 nT), which is convenient for space weather applications.

引用

页数：6

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