Method of frequency dependent correlations: investigating the variability of total solar irradiance

  title={Method of frequency dependent correlations: investigating the variability of total solar irradiance},
  author={J. Pelt and M. J. Kapyla and Nigul Olspert},
  journal={Astronomy and Astrophysics},
This paper contributes to the field of modeling and hindcasting of the total solar irradiance (TSI) based on different proxy data that extend further back in time than the TSI that is measured from satellites. We introduce a simple method to analyze persistent frequency-dependent correlations (FDCs) between the time series and use these correlations to hindcast missing historical TSI values. We try to avoid arbitrary choices of the free parameters of the model by computing them using an… 

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