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**FULL TITLE** ASP Conference Series, Vol. **VOLUME**, **YEAR OF PUBLICATION**
 

Summary: **FULL TITLE**
ASP Conference Series, Vol. **VOLUME**, **YEAR OF PUBLICATION**
**NAMES OF EDITORS**
Dynamical complexity in Dst time series using entropy
concepts
Georgios Balasis, Ioannis A. Daglis and Anastasios Anastasiadis
Institute for Space Applications and Remote Sensing, National
Observatory of Athens, Athens, Greece
Konstantinos Eftaxias
Section of Solid State Physics, Department of Physics, University of
Athens, Athens, Greece
Abstract. The complex system of the Earth's magnetosphere corresponds to
an open spatially extended nonequilibrium (input - output) dynamical system.
This paper explores the applicability and effectiveness of a variety of computable
entropy measures (e.g. Block entropy, T -complexity and Approximate entropy)
to the investigation of dynamical complexity in the magnetosphere. We show
that as the magnetic storm approaches there is clear evidence of significant lower
complexity (higher organization) in the magnetosphere. Approximate entropy
yields superior results for detecting dynamical complexity changes in the mag-
netosphere in comparison to the other entropy measures presented herein. The

  

Source: Anastasiadis, Anastasios - Institute for Space Applications and Remote Sensing, National Observatory of Athens

 

Collections: Physics