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Comment on the existence of a long range correlation in the geomagnetic disturbance storm time (Dst) index

Astrophysics and Space Science volume 337, pages 21–22 (2012)Cite this article

Abstract

Very recently (Banerjee et al. in Astrophys. Space, doi:1007/s10509-011-0836-1, 2011) the statistics of geomagnetic Disturbance storm (Dst) index have been addressed, and the conclusion from this analysis suggests that the underlying dynamical process can be modeled as a fractional Brownian motion with persistent long-range correlations. In this comment we expose several misconceptions and flaws in the statistical analysis of that work. On the basis of these arguments, the former conclusion should be revisited.

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References

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Authors and Affiliations

  1. Dept. Matemática Aplicada y Estadística ETSI Aeronáuticos, Universidad Politécnica de Madrid, Madrid, Spain

    Lucas Lacasa

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  1. Lucas Lacasa
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Correspondence to Lucas Lacasa.

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Lacasa, L. Comment on the existence of a long range correlation in the geomagnetic disturbance storm time (Dst) index. Astrophys Space Sci 337, 21–22 (2012). https://doi.org/10.1007/s10509-011-0926-0

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  • DOI: https://doi.org/10.1007/s10509-011-0926-0

Keywords

  • Solar-terrestrial relations
  • Solar wind