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@ARTICLE{Janosi:44327,
      author       = {Janosi, I. M and Müller, R.},
      title        = {{E}mpirical mode decompostion and correlation properties of
                      long daily ozone records},
      journal      = {Physical review / E},
      volume       = {71},
      number       = {5},
      issn         = {1539-3755},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-44327},
      pages        = {056126},
      year         = {2005},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Correlations for daily data of total ozone column are
                      investigated by detrended fluctuation analysis (DFA). The
                      removal of annual periodicity does not result in a
                      background-free signal for the tropical station Mauna Loa.
                      In order to identify the remaining quasiperiodic
                      constituent, the relatively new method of empirical mode
                      decomposition (EMD) is tested. We found that the so-called
                      intrinsic mode functions do not represent real signal
                      components of the ozone time series, their amplitude
                      modulation is very sensitive to local changes such as random
                      data removal or smoothing. Tests on synthetic data further
                      corroborate the limitations of decomposing quasiperiodic
                      signals from noise with EMD. Nevertheless the EMD algorithm
                      helps to identify dominating frequencies in the time series,
                      which allows to separate fluctuations from the remaining
                      background. We demonstrate that DFA analysis for the cleaned
                      Mauna Loa record yields scaling comparable to a mid-latitude
                      station.},
      keywords     = {J (WoSType)},
      cin          = {ICG-I},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB47},
      pnm          = {Chemie und Dynamik der Geo-Biosphäre},
      pid          = {G:(DE-Juel1)FUEK257},
      shelfmark    = {Physics, Fluids $\&$ Plasmas / Physics, Mathematical},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000231688300038},
      doi          = {10.1103/PhysRevE.71.056126},
      url          = {https://juser.fz-juelich.de/record/44327},
}