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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},
}