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Advances in Meteorology
Volume 2010 (2010), Article ID 939171, 16 pages
http://dx.doi.org/10.1155/2010/939171
Research Article

Global Modeling of the Oceanic Source of Organic Aerosols

1Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, 71003, Heraklion, Greece
2Institute for Environment and Sustainability, European Commission, Joint Research Centre, 21027, Ispra, Italy
3NASA Goddard Institute for Space Studies, New York, NY 10025, USA
4Center for Climate Systems Research, Columbia University, New York, NY 10025, USA
5Department of Physics, University of Ioannina, 54110, Ioannina, Greece
6LSCE, CNRS/CEA, 91190, Gif sur Yvette, France
7Institute of Atmospheric Sciences and Climate, CNR, 40129, Bologna, Italy
8School of Physics and Environmental Change Institute, National University of Ireland, Galway, Ireland
9Royal Netherlands Meteorological Institute (KNMI), P.O. Box 201, 3730 AE, De Bilt, The Netherlands

Received 16 February 2010; Revised 11 May 2010; Accepted 15 June 2010

Academic Editor: Nicholas Meskhidze

Copyright © 2010 Stelios Myriokefalitakis et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The global marine organic aerosol budget is investigated by a 3-dimensional chemistry-transport model considering recently proposed parameterisations of the primary marine organic aerosol (POA) and secondary organic aerosol (SOA) formation from the oxidation of marine volatile organic compounds. MODIS and SeaWiFS satellite data of Chlorophyll-a and ECMWF solar incoming radiation, wind speed, and temperature are driving the oceanic emissions in the model. Based on the adopted parameterisations, the SOA and the submicron POA marine sources are evaluated at about 5 Tg ( 1.5 Tg C ) and 7 to 8 Tg ( 4 Tg C ), respectively. The computed marine SOA originates from the dimethylsulfide oxidation ( 78%), the potentially formed dialkyl amine salts ( 21%), and marine hydrocarbon oxidation ( 0.1%). Comparison of calculations with observations indicates an additional marine source of soluble organic carbon that could be partially encountered by marine POA chemical ageing.