Publication Date:
2008
abstract:
The temporal fluctuations of particulate matter time series of three reference European stations
have been investigated, by using the power spectrum analysis. Our results point out to the presence
in particulate matter of annual periodicities superimposed on a scaling behaviour with exponent
ranging between ~1.4 and ~1.6, indicating quite high persistent correlations. Furthermore, a
crossover timescale at about 1 month, evidenced in all the signals analysed, could be linked
with chemical-physical processes in which aerosol particles are involved during their atmospheric
lifetimes.
have been investigated, by using the power spectrum analysis. Our results point out to the presence
in particulate matter of annual periodicities superimposed on a scaling behaviour with exponent
ranging between ~1.4 and ~1.6, indicating quite high persistent correlations. Furthermore, a
crossover timescale at about 1 month, evidenced in all the signals analysed, could be linked
with chemical-physical processes in which aerosol particles are involved during their atmospheric
lifetimes.
Iris type:
01.01 Articolo in rivista
Keywords:
Particulate matter; spectral analysis
List of contributors:
Lovallo, Michele; Trippetta, Serena; Caggiano, Rosa; Telesca, Luciano; Lapenna, Vincenzo
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