Blog
About

  • Record: found
  • Abstract: found
  • Article: not found
Is Open Access

Air quality trends in Europe over the past decade: a first multi-model assessment

Read this article at

ScienceOpenPublisher
Bookmark
      There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

      Abstract

      <p><strong>Abstract.</strong> We discuss the capability of current state-of-the-art chemistry and transport models to reproduce air quality trends and interannual variability. Documenting these strengths and weaknesses on the basis of historical simulations is essential before the models are used to investigate future air quality projections. To achieve this, a coordinated modelling exercise was performed in the framework of the CityZEN European Project. It involved six regional and global chemistry-transport models (BOLCHEM, CHIMERE, EMEP, EURAD, OSLOCTM2 and MOZART) simulating air quality over the past decade in the Western European anthropogenic emissions hotspots. <br><br> Comparisons between models and observations allow assessing the skills of the models to capture the trends in basic atmospheric constituents (NO<sub>2</sub>, O<sub>3</sub>, and PM<sub>10</sub>). We find that the trends of primary constituents are well reproduced (except in some countries – owing to their sensitivity to the emission inventory) although capturing the more moderate trends of secondary species such as O<sub>3</sub> is more challenging. Apart from the long term trend, the modelled monthly variability is consistent with the observations but the year-to-year variability is generally underestimated. <br><br> A comparison of simulations where anthropogenic emissions are kept constant is also investigated. We find that the magnitude of the emission-driven trend exceeds the natural variability for primary compounds. We can thus conclude that emission management strategies have had a significant impact over the past 10 yr, hence supporting further emission reductions.</p>

      Related collections

      Most cited references 43

      • Record: found
      • Abstract: not found
      • Article: not found

      Estimates of global terrestrial isoprene emissions using MEGAN (Model of Emissions of Gases and Aerosols from Nature)

        Bookmark
        • Record: found
        • Abstract: not found
        • Article: not found

        Interannual variability in global biomass burning emissions from 1997 to 2004

          Bookmark
          • Record: found
          • Abstract: not found
          • Article: not found

          Description and evaluation of the Model for Ozone and Related chemical Tracers, version 4 (MOZART-4)

            Bookmark

            Author and article information

            Journal
            Atmospheric Chemistry and Physics
            Atmos. Chem. Phys.
            Copernicus GmbH
            1680-7324
            2011
            November 22 2011
            : 11
            : 22
            : 11657-11678
            10.5194/acp-11-11657-2011
            © 2011

            https://creativecommons.org/licenses/by/3.0/

            Product

            Comments

            Comment on this article