Vol. 17, issue 05-06, article # 28

Abstract:

The paper presents preliminary results of spectral-cluster analysis of variations of the surface ozone concentration measured at the EMEP European ozone network. The energy contributions of different processes ranging from local to large-scale in four selected period groups from 91 to 1 day were analyzed. It has been shown that the energy spectral contributions of the large-scale processes are growing from the north to the south with the decrease of the contributions from shorter-term processes. Clustering of the energy contributions reveals the substantial spatial non-uniformity of the processes governing surface ozone regime over Europe.