Primary Versus Secondary Contributions to Particle Number Concentrations in the European Boundary Layer

0372230 - ÚCHP 2012 RIV DE eng J - Journal Article
Reddington, C.L. - Carslaw, K.S. - Spracklen, D.V. - Frontoso, M.G. - Collins, L. - Merikanto, J. - Minikin, A. - Hamburger, T. - Coe, H. - Kulmala, M. - Aalto, P. - Flentje, H. - Plass-Dülmer, C. - Birmili, W. - Wiedensohler, A. - Wehner, B. - Tuch, T. - Sonntag, A. - O'Dowd, C.D. - Jennings, S.G. - Dupuy, R. - Baltensperger, U. - Weingartner, A. - Hansson, H.-C. - Tunved, P. - Laj, P. - Sellegri, K. - Boulon, J. - Putaund, J.-P. - Gruening, C. - Swietlicki, E. - Roldin, P. - Henzing, J.S. - Moerman, M. - Mihalopoulos, N. - Kouvarakis, G. - Ždímal, Vladimír - Zíková, Naděžda - Marinoni, A. - Bonasoni, P. - Duchi, R.
Primary Versus Secondary Contributions to Particle Number Concentrations in the European Boundary Layer.
Atmospheric Chemistry and Physics. Roč. 11, č. 23 (2011), s. 12007-12036. ISSN 1680-7316. E-ISSN 1680-7324
Grant - others:EUCAARI(XE) 036833-2; GFME(DE) FE370343200
Institutional research plan: CEZ:AV0Z40720504
Keywords : primary aerosol * secondary aerosol * boundary layer
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 5.520, year: 2011

It is important to understand the relative contribution of primary and secondary particles to regional and global aerosol so that models can attribute aerosol radiative forcing to different sources. In large-scale models, there is considerable uncertainty associated with treatments of particle formation (nucleation) in the boundary layer (BL) and in the size distribution of emitted primary particles, leading to uncertainties in predicted cloud condensation nuclei (CCN) concentrations. Here we quantify how primary particle emissions and secondary particle formation influence size-resolved particle number concentrations in the BL using a global aerosol microphysics model and aircraft and ground site observations made during the May 2008 campaign of the EUCAARI. We tested four different parameterisations for BL nucleation and two assumptions for the emission size distribution of anthropogenic and wildfire carbonaceous particles.
Permanent Link: http://hdl.handle.net/11104/0205595