Kanakidou, M. and Seinfeld, J. H. and Pandis, S. N. and Barnes, I. and Dentener, F. J. and Facchini, M. C. and van Dingenen, R. and Ervens, B. and Nenes, A. and Nielsen, C. J. and Swietlicki, E. and Putaud, J. P. and Balkanski, Y. and Fuzzi, S. and Horth, J. and Moortgat, G. K. and Winterhalter, R. and Myhre, C. E. L. and Tsigaridis, K. and Vignati, E. and Stephanou, E. G. and Wilson, J. (2004) Organic aerosol and global climate modelling: a review. Atmospheric Chemistry and Physics Discussions, 4 (5). pp. 5855-6024. ISSN 1680-7375 http://resolver.caltech.edu/CaltechAUTHORS:KANapcd04
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The present paper reviews existing knowledge with regard to Organic Aerosol (OA) of importance for global climate modelling and defines critical gaps needed to reduce the involved uncertainties. All pieces required for the representation of OA in a global climate model are sketched out with special attention to Secondary Organic Aerosol (SOA): The emission estimates of primary carbonaceous particles and SOA precursor gases are summarized. The up-to-date understanding of the chemical formation and transformation of condensable organic material is outlined. Knowledge on the hygroscopicity of OA and measurements of optical properties of the organic aerosol constituents are summarized. The mechanisms of interactions of OA with clouds and dry and wet removal processes parameterisations in global models are outlined. This information is synthesized to provide a continuous analysis of the flow from the emitted material to the atmosphere up to the point of the climate impact of the produced organic aerosol. The sources of uncertainties at each step of this process are highlighted as areas that require further studies.
|Additional Information:||All papers, comments, figures and other material published by this journal is copyrighted by the author(s) and, unless otherwise noted, is licenced under the Creative Commons Attribution - NonCommercial - ShareAlike Licence <http://creativecommons.org/licenses/by-nc-sa/2.0/deed.en>. Received: 3 August 2004 – Accepted: 16 August 2004 – Published: 28 September 2004. This work has been supported by the EU project PHOENICS: EVK2-CT2001-00098. We thank all participants of the PHOENICS workshop on Organic Aerosol in Belgirate in Sept. 2003 for communication of their results and fruitful discussions. B. Ervens acknowledges support by the NOAA Office of Global programs. The authors are looking forward to constructive comments on the manuscript during the interactive phase of ACPD discussion.|
|Subject Keywords:||AEROCOM Global Aerosol Model Intercomparison; BC Black carbon; BRAVO Big Bend Regional Aerosol and Visibility Observational Study; CCN Cloud Condensation Nuclei; DMS Dimethyl Sulfide; DRH Deliquescence Relative Humidity; EC Elemental Carbon; EDB Electrodynamic balance; EMEP Co-operative Programme for Monitoring and Evaluation of the Long-Range Transmission of Air Pollutants in Europe; EPA Environmental Protection Agency; FFC film-forming compounds; GCM General Circulation Model; GF Growth Factor; HMS− Hydroxymethanesulfonate; HNMR Proton Nuclear Magnetic Resonance Spectroscopy; HTDMA Hygroscopic Tandem Differential Mobility Analyzer; IMPROVE Interagency Monitoring at Protected Visual Environments; IN Ice Nuclei; IUPAC International Union of Pure and Applied Chemistry; LH Low Hygroscopicity; MCM Master Chemical Mechanism; MH Medium Hygroscopicity; NMVOC Non Methane Volatile Organic Compounds; OA Organic Aerosol; OM Organic Particulate Matter; ORVOC Other reactive volatile organic compounds; OSOA Origin and Formation of Secondary Organic Aerosol; OVOC Other volatile organic compounds; POA Primary Organic Aerosol; RH Relative Humidity; SAPRC Statewide Air Pollution Research Center chemical mechanism; SOA Secondary Organic Aerosol; SSA Single Scatering Albedo; TDMA Tandem Differential Mobility Analyzer; UNIFAC UNIquac Functional-group Activity Coefficient method; UV Ultra Violet; VOC Volatile Organic Compounds; WMO-WDCA World Meteorological Organization – World Data Centre for Aerosol; WSOC Water Soluble Organic Compounds; ZSR Zdanovskii-Stokes-Robinson approach|
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|Deposited On:||25 May 2005|
|Last Modified:||26 Dec 2012 08:39|
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