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Surface Ozone Spatial Distribution and Trends Over Europe During 1997–2006

  • D. Aggelis
  • P. Zanis
  • C. S. Zerefos
  • A. F. Bais
  • P. T. Nastos
Conference paper
Part of the Springer Atmospheric Sciences book series (SPRINGERATMO)

Abstract

Surface ozone mixing ratio spatial distribution over Europe was constructed through kriging interpolation based on EMEP ground measurements during 1997–2006. The climatology, the annual and seasonal trends, the diurnal cycle and the altitude dependence were studied as well as the relation with the North Atlantic Oscillation (NAO). The mean seasonal cycle amplitude and maximum display an increasing gradient from northwest to southeast, with high levels in Austria and eastern Mediterranean. Trends are close to zero (−1.00 to +1.00 ppbv.year−1), except for significant positive values in UK, Slovakia, S. Scandinavia and Austria, in winter and autumn. Diurnal amplitude decreases with latitude for low altitude stations (<1,000 m), due to enhanced photochemistry, with maximum in the afternoon. Elevated continental stations, usually in the free troposphere, exhibit diurnal variability close to zero and maximum around midnight. In winter about 40% of near surface ozone variability at the western edge of Europe may be attributed to circulation changes and ozone precursors’ transport related to NAO.

Keywords

North Atlantic Oscillation North Atlantic Oscillation Index Surface Ozone Diurnal Variability Ozone Precursor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • D. Aggelis
    • 1
  • P. Zanis
    • 2
  • C. S. Zerefos
    • 1
    • 3
  • A. F. Bais
    • 4
  • P. T. Nastos
    • 5
  1. 1.Academy of Athens, Research Centre for Atmospheric Physics and ClimatologyAthensGreece
  2. 2.Department of Meteorology and Climatology, School of GeologyAristotle University of ThessalonikiThessalonikiGreece
  3. 3.Navarino Environmental Observatory (N.E.O.)MessiniaGreece
  4. 4.Section of Applied and Environmental Physics, Department of Physics, School of ScienceAristotle University of ThessalonikiThessalonikiGreece
  5. 5.Laboratory of Climatology and Atmospheric EnvironmentNational and Kapodistrian University of AthensAthensGreece

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