NDLI: Nonlinear dynamics of the magnetosphere and space weather

Content Provider	IEEE Xplore Digital Library
Author	Sharma, A.S.
Copyright Year	1996
Description	Author affiliation: Dept. of Astron., Maryland Univ., College Park, MD, USA (Sharma, A.S.)
Abstract	Summary form only given. The solar wind-magnetosphere-ionosphere system exhibits coherence on the global scale and such behaviour can arise from nonlinearity in the dynamics. The observational time series data have been used extensively to analyze the magnetospheric dynamics by using the techniques of phase space reconstruction. Analyses of the solar wind and auroral electrojet and Dst indices have shown low dimensionality of the dynamics and accurate prediction can be made with an input-output model. The predictability of the magnetosphere in spite of the apparent complexity arises from its being synchronized, in the dynamical sense, to the solar wind. The AE and Dst data are used to analyze the storm-substorm relationship based on the input-output model. This shows differences between the storm-time and non-storm substorms, and is interpreted in terms of loading-unloading and directly driven processes. The strong electrodynamic coupling between the different regions of the magnetosphere yields its coherent and thus low dimensional behaviour. The data from multiple satellites and ground stations are used to develop a spatio-temporal model that identifies the coupling between the different regions. These nonlinear dynamical models provide forecasting tools for space weather.
File Size	94536
File Format	PDF
ISBN	0780333225
ISSN	07309244
DOI	10.1109/PLASMA.1996.551529
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetosphere Nonlinear dynamical systems Magnetic analysis Wind forecasting Predictive models Weather forecasting Time series analysis Electrodynamics Couplings Satellites
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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