Solar Physics

, Volume 260, Issue 2, pp 441–449 | Cite as

Nonlinear Time Series Analysis of Sunspot Data

  • Vinita Suyal
  • Awadhesh Prasad
  • Harinder P. Singh
Article

Abstract

This article deals with the analysis of sunspot number time series using the Hurst exponent. We use the rescaled range (R/S) analysis to estimate the Hurst exponent for 259-year and 11 360-year sunspot data. The results show a varying degree of persistence over shorter and longer time scales corresponding to distinct values of the Hurst exponent. We explain the presence of these multiple Hurst exponents by their resemblance to the deterministic chaotic attractors having multiple centers of rotation.

Hurst analysis Solar cycle Statistics Sunspots 

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Vinita Suyal
    • 1
  • Awadhesh Prasad
    • 1
  • Harinder P. Singh
    • 1
  1. 1.Department of Physics and AstrophysicsUniversity of DelhiDelhiIndia

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