Scaling in long term data sets of geomagnetic indices and solar wind Ç« as seen by WIND spacecraft. We study scaling in fluctuations of the geomagnetic indices (AE, AU , and AL) that provide a measureâ€¦ (More)

Statistical properties of the interplanetary magnetic field fluctuations can provide an important insight into the solar wind turbulent cascade. Recently, analysis of the Probability Densityâ€¦ (More)

Introduced by the late Per Bak and his colleagues, self-organized criticality (SOC) has been one of the most stimulating concepts to come out of statistical mechanics and condensed matter theory inâ€¦ (More)

The interaction between the Earthâ€™s magnetic field and the solar wind plasma results in a natural plasma confinement system which stores energy. Dissipation of this energy through Joule heating inâ€¦ (More)

We calculate for the first time the probability density functions (PDFs) P of burst energy e, duration T and inter-burst interval Ï„ for a known turbulent system in nature. Bursts in the earth-sunâ€¦ (More)

Physical review. E, Statistical, nonlinear, andâ€¦

2003

We discuss how the ideal formalism of computational mechanics can be adapted to apply to a noninfinite series of corrupted and correlated data, that is typical of most observed natural time series.â€¦ (More)

We apply the finite size scaling technique to quantify the statistical properties of fluctuations in AU, AL and AE indices and in the Ç« parameter that represents energy input from the solar wind intoâ€¦ (More)

Empirical determination of the scaling properties and exponents of time series presents a formidable challenge in testing, and developing, a theoretical understanding of turbulence and otherâ€¦ (More)

As noted by Chang, the hypothesis of Self-Organised Criticality provides a theoretical framework in which the low dimensionality seen in magnetospheric indices can be combined with the scaling seenâ€¦ (More)