Long-term surface ozone variability in the Mediterranean Basin (Comunicazione a convegno)

Type
Label
  • Long-term surface ozone variability in the Mediterranean Basin (Comunicazione a convegno) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Alternative label
  • P. Cristofanelli1, J. A. Adame2, M. Saliba3, F. Azzopardi3, R. Ellul3, F. Calzolari1, R. Duchi1, T. C. Landi1, D. Putero1, A. Marinoni1 and P. Bonasoni1 (2014)
    Long-term surface ozone variability in the Mediterranean Basin
    in IGAC 2014
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • P. Cristofanelli1, J. A. Adame2, M. Saliba3, F. Azzopardi3, R. Ellul3, F. Calzolari1, R. Duchi1, T. C. Landi1, D. Putero1, A. Marinoni1 and P. Bonasoni1 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [1]{National Research Council of Italy, Institute for Atmospheric Sciences and Climate, 40129 Bologna, Italy} [2]{Atmospheric Sounding Station - El Arenosillo, Atmospheric Research and Instrumentation Branch, National Institute for Aerospace Technology, Huelva, Spain [3]{Atmospheric Research Physics Dept. University of Malta, Msida MSD 2080, Malta} (literal)
Titolo
  • Long-term surface ozone variability in the Mediterranean Basin (literal)
Abstract
  • Tropospheric ozone is an atmospheric key compound. It is recognised as a powerful greenhouse gas, influences the oxidation capacity of the troposphere and affects population health, ecosystem integrity and crop yields. O3 is a short-lived climate forcer because it is an effective greenhouse gas. Levels of tropospheric O3 at regional scale are determined primarily by the emissions of pre-cursors strongly affected by natural and anthropogenic emissions. The Mediterranean basin represents a hot-spot area in terms of short-term O3 distribution and anthropogenic contributions to it. Surface O3 has doubled in the Mediterranean basin compared to pre-industrial ages due to the combination of regional precursor emission growth and, possibly, inputs related with intercontinental transport. Because of the typical anticyclonic, intensive O3 photochemical production events frequently occur in this region during the warm period. While several studies were performed for evaluating long-term surface O3 variability and trends at remote and rural locations of continental Europe, to our knowledge no specific efforts were conducted to evaluate the long-term O3 trends in the Mediterranean basin. In this work, we present and analyse the long-term time series of surface O3 observations carried out at three atmospheric observatories located in the Mediterranean basin: the \"Mt. Cimone\" World Meteorological Organization (WMO)/Global Atmosphere Watch (GAW) global station (44°12' N, 10°42' E, 2165 m a.s.l., Italy), the \"Gozo\" WMO/GAW regional station (36.07ºN, 14.22ºE, 160 m a.s.l., Malta) and the El Arenosillo station (37.1 N, 6.7 W, 40 m a.s.l., Spain). Considering all these measurement sites, an ozone record spanning the period 1991 - 2012 is available. The study aims at providing reliable indications about the lower troposphere O3 conditions of the Mediterranean basin/southern Europe (MB/SE). In particular, we discuss the different daily and seasonal O3 behaviours affecting these measurement sites as well as the existence of yearly and seasonal long-term trends. (literal)
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