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The Influence of Cloud Chemical Processes on the Formation of Secondary Particulate Matter

  • Roland SchroednerEmail author
  • Ralf Wolke
  • Andreas Tilgner
  • Hartmut Herrmann
Conference paper
Part of the Springer Proceedings in Complexity book series (SPCOM)

Abstract

As a pre-study for the 3-D-simulation of the hill cap cloud experiment HCCT 2010 the chemistry transport model COSMO-MUSCAT was tested in a 2-D-domain with a bell-shaped hill. The sensitivity of several target species (oxidants, pH, sulphate, organic mass, dicarboxylic acids, O/C-ratio) on the detail of the aqueous phase mechanism was investigated in a polluted urban and a clean continental rural air mass. For the treatment of aqueous phase chemistry the complex mechanism CAPRAM 3.0i in reduced version and the simple inorganic mechanism INORG was used. Differences between both mechanisms occurred for the oxidants which are not treated in INORG (HO2, OH, NO3) and the pH especially in the urban environment where much more organic reaction partners are also present in the aqueous phase. For O3, H2O2 and the overall sulphate mass both mechanisms agree mostly within 5 %. Additionally, the composition of the organic mass has been analysed.

Keywords

Pyruvic Acid Liquid Water Content Organic Mass Nitrate Production Sulphate Mass 
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.

Notes

Acknowledgments

R.S. acknowledges personal funding by the scholarship program of the German Federal Environmental Foundation (DBU). The ZIH Dresden and the NIC Jülich supported this work. We gratefully acknowledge the DWD Offenbach for good cooperation.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Roland Schroedner
    • 1
    Email author
  • Ralf Wolke
    • 1
  • Andreas Tilgner
    • 1
  • Hartmut Herrmann
    • 1
  1. 1.Department of Modeling of Atmospheric ProcessesLeibniz Institute for Tropospheric Research (TROPOS)LeipzigGermany

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