Articles | Volume 9, issue 3/4
Nonlin. Processes Geophys., 9, 325–331, 2002
https://doi.org/10.5194/npg-9-325-2002
Nonlin. Processes Geophys., 9, 325–331, 2002
https://doi.org/10.5194/npg-9-325-2002

  31 Aug 2002

31 Aug 2002

Cross recurrence plot based synchronization of time series

N. Marwan1, M. Thiel1, and N. R. Nowaczyk2 N. Marwan et al.
  • 1Institute of Physics, University of Potsdam, Germany
  • 2GeoForschungs-Zentrum Potsdam, Germany

Abstract. The method of recurrence plots is extended to the cross recurrence plots (CRP) which, among others, enables the study of synchronization or time differences in two time series. This is emphasized in a distorted main diagonal in the cross recurrence plot, the line of synchronization (LOS). A non-parametrical fit of this LOS can be used to rescale the time axis of the two data series (whereby one of them is compressed or stretched) so that they are synchronized. An application of this method to geophysical sediment core data illustrates its suitability for real data. The rock magnetic data of two different sediment cores from the Makarov Basin can be adjusted to each other by using this method, so that they are comparable.