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On the derivation of an hourly local index to define the normal ionosphere
reference ionosphere ionospheric disturbance ionospheric indices
2015/9/30
In this paper an hourly local ionospheric index f n F 2 is proposed to define the normal level of the undisturbed
ionosphere. For the determination of this index a model is developed where the normal...
Nonlinear analysis of magnetospheric data Part II. Dynamical characteristics of the AE index time series and comparison with nonlinear surrogate data
Nonlinear analysis magnetospheric data Dynamical characteristics AE index time series
2009/11/13
In this study we have used dynamical characteristies such as Lyapunov exponents, nonlinear dynamic models and mutual information for the nonlinear analysis of the magnetospheric AE index time series. ...
Nonlinear analysis of magnetospheric data Part I. Geometric characteristics of the AE index time series and comparison with nonlinear surrogate data
Nonlinear analysis magnetospheric data Geometric characteristics AE index time series
2009/11/13
A long AE index time series is used as a crucial magnetospheric quantity in order to study the underlying dynainics. For this purpose we utilize methods of nonlinear and chaotic analysis of time serie...
SVD analysis of the magnetospheric AE index time series and comparison with low-dimensional chaotic dynamics
SVD analysis magnetospheric AE index time series low-dimensional chaotic dynamics
2009/11/12
The singular value decomposition (SVD) analysis is used at different stages in this paper in order to extract useful information concerning the underlying dynamics of the magnetospheric AE index. As a...
Fractal time statistics of AE-index burst waiting times:evidence of metastability
Fractal time statistics AE-index burst waiting times evidence of metastability
2009/11/12
Recent observations and analyses evidenced that the magnetotail, as well as the magnetospheric dynamics are characterised by a scale-free behaviour and intermittence. These results, along with numeric...
Prediction of magnetic storm events using the Dst index
Prediction magnetic storm events Dst index
2009/11/11
This paper provides a method to predict magnetic storm events based on the time series of the Dst index over the period 1981-2002. This method is based on the multiple scaling of the measure represent...
The Date of Break-Up of Lake Ice as a Climatic Index
Date Break-Up Lake Ice Climatic Index
2009/6/15
The Date of Break-Up of Lake Ice as a Climatic Index.