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Modeling Seasonal Changes in Organic Aerosol Composition at the puy de Dôme (France)

  • Christelle BarbetEmail author
  • Laurent Deguillaume
  • Nadine Chaumerliac
Conference paper
Part of the Springer Proceedings in Complexity book series (SPCOM)

Abstract

In the atmosphere, a significant fraction of organic aerosol (OA) makes up the particulate matter. Since OA consists of thousands of complex molecules, uncertainties remain concerning their sources and atmospheric processes leading to their transformation (Hallquist M et al. Atmos Chem Phys 9:5155–5236, 2009). OA are, in principle, divided into two categories: primary organic aerosol (POA), which is emitted directly into the atmosphere, and secondary organic aerosol (SOA), which is formed by the photo-chemical oxidation of volatile organic compounds (VOC). VOC emissions and consequently OA formation are strongly linked to the season of the year. To that purpose, simulations were performed in autumn (September 2008) and summer (June 2010) with the WRF-CHEM model including more precisely RACM (Stockwell WR et al. J Geophys Res 102:25847–25879, 1997) chemical mechanism for gas phase associated with MADE for aerosols (Ackermann IJ et al. Atmos Environ 32(17):2981–2999, 1998) and VBS (Ahmadov et al. J Geophys Res 117:D06301, 2012) for SOA. Moreover, model outputs are compared with measurements performed during each season (Freney EJ et al. Atmos Chem Phys 11:13047–13059, 2011) at the puy de Dôme monitoring site which is located in central France (45°46 N 2°57 E) and is a part of the ACTRIS (Aerosols, Clouds, and Trace gases Research InfraStructure) and GAW (Global Atmospheric Watch) network.

Keywords

Secondary Organic Aerosol VOCs Concentration Volatile Organic Compound Emission Biogenic Emission Atmos Chem Phys 
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 International Publishing Switzerland 2014

Authors and Affiliations

  • Christelle Barbet
    • 1
    Email author
  • Laurent Deguillaume
    • 1
  • Nadine Chaumerliac
    • 1
  1. 1.LaMP, CNRSUniversité Blaise PascalAubièreFrance

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