Analysis Of Environmental Time Series In The Frequency Domain
Author(s)
R. Cocci Grifoni, L. Magnaterra, G. Passerini & S. Tascini
Abstract
Analysis of environmental time series
in the frequency domain
R. Cocci Grifoni, L. Magnaterra, G. Passerini & S. Tascini
Dipartirnento di Energetica,
Universitii Politemica delle Marche, Italy.
Abstract
Analysis in the frequency domain is a common technique usually performed to
reveal periodic components of a physical phenomenon that are not manifest
after a preliminary study of the related time series. It can also be performed to
study correlation between two variables. This work illustrates procedures and
results of spectral analysis performed over air pollutant time series. The focus
has been set on photochemical pollutants traced by ozone concentrations,
considering potential correlations with chemical precursors and atmospheric
parameters such as solar radiation, wind velocity and air temperature. Primary
pollutants have also been considered.
The selected data set consists of concentration hourly averages and
elementary values, provided by the monitoring network of Ancona Province,
Italy
Keywords
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