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Asmi, A. (author), Wiedensohler, A. (author), Laj, P. (author), Fjaeraa, A.-M. (author), Sellegri, K. (author), Birmili, W. (author), Weingartner, E. (author), Baltensperger, U. (author), Zdimal, V. (author), Zikova, N. (author), Putaud, J.-P. (author), Marinoni, A. (author), Tunved, P. (author), Hansson, H.-C. (author), Fiebig, M. (author), Kivekäs, N. (author), Lihavainen, H. (author), Asmi, E. (author), Ulevicius, V. (author), Aalto, P.P. (author), Swietlicki, E. (author), Kristensson, A. (author), Mihalopoulos, N. (author), Kalivitis, N. (author), Kalapov, I. (author), Kiss, G. (author), de Leeuw, G. (author), Henzing, B. (author), Harrison, R.M. (author), Beddows, D. (author), O'Dowd, C. (author), Jennings, S.G. (author), Flentje, H. (author), Weinhold, K. (author), Meinhardt, F. (author), Ries, L. (author), Kulmala, M. (author)Two years of harmonized aerosol number size distribution data from 24 European field monitoring sites have been analysed. The results give a comprehensive overview of the European near surface aerosol particle number concentrations and number size distributions between 30 and 500 nm of dry particle diameter. Spatial and temporal distribution of...article 2011
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Asmi, A. (author), Wiedensohler, A. (author), Laj, P. (author), Fjaeraa, A.-M. (author), Sellegri, K. (author), Birmili, W. (author), Weingartner, E. (author), Baltensperger, U. (author), Zdimal, V. (author), Zikova, N. (author), Putaud, J.-P. (author), Marinoni, A. (author), Tunved, P. (author), Hansson, H.-C. (author), Fiebig, M. (author), Kivekäs, N. (author), Lihavainen, H. (author), Asmi, E. (author), Ulevicius, V. (author), Aalto, P.P. (author), Swietlicki, E. (author), Kristensson, A. (author), Mihalopoulos, N. (author), Kalivitis, N. (author), Kalapov, I. (author), Kiss, G. (author), de Leeuw, G. (author), Henzing, B. (author), Harrison, R.M. (author), Beddows, D. (author), O'Dowd, C. (author), Jennings, S.G. (author), Flentje, H. (author), Weinhold, K. (author), Meinhardt, F. (author), Ries, L. (author), Kulmala, M. (author)Two years of harmonized aerosol number size distribution data from 24 European field monitoring sites have been analysed. The results give a comprehensive overview of the European near surface aerosol particle number concentrations and number size distributions between 30 and 500 nm of dry particle diameter. Spatial and temporal distribution of...article 2011
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Reddington, C.L. (author), Carslaw, K.S. (author), Spracklen, D.V. (author), Frontoso, M.G. (author), Collins, L. (author), Merikanto, J. (author), Minikin, A. (author), Hamburger, T. (author), Coe, H. (author), Kulmala, M. (author), Aalto, P. (author), Flentje, H. (author), Plass-Dülmer, C. (author), Birmili, W. (author), Wiedensohler, A. (author), Wehner, B. (author), Tuch, T. (author), Sonntag, A. (author), O'Dowd, C.D. (author), Jennings, S.G. (author), Dupuy, R. (author), Baltensperger, U. (author), Weingartner, E. (author), Hansson, H.-C. (author), Tunved, P. (author), Laj, P. (author), Sellegri, K. (author), Boulon, J. (author), Putaud, J.-P. (author), Gruening, C. (author), Swietlicki, E. (author), Roldin, P. (author), Henzing, J.S. (author), Moerman, M. (author), Mihalopoulos, N. (author), Kouvarakis, G. (author), Ždímal, V. (author), Zíková, N. (author), Marinoni, A. (author), Bonasoni, P. (author), Duchi, R. (author)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)...article 2011
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Kulmala, M. (author), Asmi, A. (author), Lappalainen, H.K. (author), Baltensperger, U. (author), Brenguier, J.-L. (author), Facchini, M.C. (author), Hansson, H.-C. (author), Hov, Ø. (author), O'Dowd, C.D. (author), Pöschl, U. (author), Wiedensohler, A. (author), Boers, R. (author), Boucher, O. (author), de Leeuw, G. (author), Denier van der Gon, H.A.C. (author), Feichter, J. (author), Krejci, R. (author), Laj, P. (author), Lihavainen, H. (author), Lohmann, U. (author), McFiggans, G. (author), Mentel, T. (author), Pilinis, C. (author), Riipinen, I. (author), Schulz, M. (author), Stohl, A. (author), Swietlicki, E. (author), Vignati, E. (author), Alves, C. (author), Amann, M. (author), Ammann, M. (author), Arabas, S. (author), Artaxo, P. (author), Baars, H. (author), Beddows, D.C.S. (author), Bergström, R. (author), Beukes, J.P. (author), Bilde, M. (author), Burkhart, J.F. (author), Canonaco, F. (author), Clegg, S.L. (author), Coe, H. (author), Crumeyrolle, S. (author), D'Anna, B. (author), Decesari, S. (author), Gilardoni, S. (author), Fischer, M. (author), Fjaeraa, A.M. (author), Fountoukis, C. (author), George, C. (author), Gomes, L. (author), Halloran, P. (author), Hamburger, T. (author), Harrison, R.M. (author), Herrmann, H. (author), Hoffmann, T. (author), Hoose, C. (author), Hu, M. (author), Hyvärinen, A. (author), Hõrrak, U. (author), Iinuma, Y. (author), Iversen, T. (author), Josipovic, M. (author), Kanakidou, M. (author), Kiendler-Scharr, A. (author), Kirkevåg, A. (author), Kiss, G. (author), Klimont, Z. (author), Kolmonen, P. (author), Komppula, M. (author), Kristjánsson, J.-E. (author), Laakso, L. (author), Laaksonen, A. (author), Labonnote, L. (author), Lanz, V.A. (author), Lehtinen, K.E.J. (author), Rizzo, L.V. (author), Makkonen, R. (author), Manninen, H.E. (author), McMeeking, G. (author), Merikanto, J. (author), Minikin, A. (author), Mirme, S. (author), Morgan, W.T. (author), Nemitz, E. (author), O'Donnell, D. (author), Panwar, T.S. (author), Pawlowska, H. (author), Petzold, A. (author), Pienaar, J.J. (author), Pio, C. (author), Plass-Duelmer, C. (author), Prévôt, A.S.H. (author), Pryor, S. (author), Reddington, C.L. (author), Roberts, G. (author), Rosenfeld, D. (author), Schwarz, J. (author), Seland, O. (author), Sellegri, K. (author), Shen, X.J. (author), Shiraiwa, M. (author), Siebert, H. (author), Sierau, B. (author), Simpson, D. (author), Sun, J.Y. (author), Topping, D. (author), Tunved, P. (author), Vaattovaara, P. (author), Vakkari, V. (author), Veefkind, J.P. (author), Visschedijk, A. (author), Vuollekoski, H. (author), Vuolo, R. (author), Wehner, B. (author), Wildt, J. (author), Woodward, S. (author), Worsnop, D.R. (author), van Zadelhoff, G.J. (author), Zardini, A.A. (author), Zhang, K. (author), van Zyl, P.G. (author), Kerminen, V.-M. (author), Carslaw, K.S. (author), Pandis, S.N. (author)In this paper we describe and summarize the main achievements of the European Aerosol Cloud Climate and Air Quality Interactions project (EUCAARI). EUCAARI started on 1 January 2007 and ended on 31 December 2010 leaving a rich legacy including: (a) a comprehensive database with a year of observations of the physical, chemical and optical...article 2011
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TNO Fysisch en Elektronisch Laboratorium (author), O'Dowd, C.D. (author), Haemeri, K. (author), Maekelae, J.M. (author), Pirjola, L. (author), Kulmala, M. (author), Jennings, S.G. (author), Berresheim, H. (author), Hansson, H-C. (author), de Leeuw, G. (author), Kunz, G.J. (author), Allen, A.G. (author), Hewitt, C.N. (author), Jackson, A. (author), Viisanen, Y. (author), Hoffman, T. (author)A dedicated study into the formation of new particles, New Particle Formation and Fate in the Coastal Environment (PARFORCE), was conducted over a period from 1998 to 1999 at the Mace Head Atmospheric Research Station on the western coast of Ireland. Continuous measurements of new particle formation were taken over the 2-year period while two...article 2002
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TNO Fysisch en Elektronisch Laboratorium (author), O'Dowd, C.D. (author), Haemeri, K. (author), Maekelae, J.M. (author), Vaekeva, M. (author), Aalto, P. (author), de Leeuw, G. (author), Kunz, G.J. (author), Becker, E. (author), Hansson, H-C. (author), Allen, A.G. (author), Harrison, R.M. (author), Berresheim, H. (author), Kleefeld, C. (author), Geever, M. (author), Jennings, S.G. (author), Kulmala, M. (author)Nucleation mode aerosol was characterized during coastal nucleation events at Mace Head during intensive New Particle Formation and Fate in the Coastal Environment (PARFORCE) field campaigns in September 1998 and June 1999. Nucleation events were observed almost on a daily basis during the occurrence of low tide and solar irradiation. In...article 2002
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- Becker, E. (author), Hoell, C. (author), Kulmala, M. (author), Hameri, K. (author), Pirjola, L. (author), Aalto, P. (author), Geever, M. (author), Kunz, G. (author), Hansson, H.-C. (author), Strom, J. (author), Jennings, M. (author), O'Dowd, C.D. (author), Makela, J.M. (author), Vakeva, M. (author), de Leeuw, G. (author), TNO Fysisch en Elektronisch Laboratorium (author) article 2001
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O'Dowd, C.D. (author), Mäkela, J.M. (author), Korhonen, P. (author), Hämeri, K. (author), Väkevä, M. (author), Pirjola, L. (author), Hansson, H-C. (author), Jennings, S.G. (author), de Leeuw, G. (author), Kunz, G.J. (author), Berresheim, H. (author), Harrison, R.M. (author), Allen, A.G. (author), Viisanen, Y. (author), Kulmala, M. (author), TNO Fysisch en Elektronisch Laboratorium (author)Understanding the formation of natural particles in the atmosphere, and their growth to radiatively active sizes, is critical to quantifying the role of anthropogenic emissions on cloud formation, climate change and public health. Only a few regions have been identified as strong natural sources of aerosols in the boundary layer: in particular,...conference paper 2000
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- O'Dowd, C.D. (author), Becker, E. (author), Hoell, C. (author), Mäkela, J.M. (author), Kulmala, M. (author), Hämeri, K. (author), Väkevä, M. (author), Pirjola, L. (author), Aalto, P. (author), Hansson, H-C. (author), Strom, J. (author), Jennings, S.G. (author), Geever, M. (author), de Leeuw, G. (author), Kunz, G.J. (author), Berresheim, H. (author), Hewitt, C.N. (author), Sartin, J. (author), Harrison, R.M. (author), Allen, A.G. (author), Viisanen, Y. (author), Korhonen, P. (author), Rapsomanikis, S. (author), Hoffman, T. (author), TNO Fysisch en Elektronisch Laboratorium (author) article 2000