Title
EUCAARI ion spectrometer measurements at 12 European sites-analysis of new particle formation events
Author
Manninen, H.E.
Nieminen, T.
Asmi, E.
Gagné, S.
Häkkinen, S.
Lehtipalo, K.
Aalto, P.
Vana, M.
Mirme, A.
Mirme, S.
Hõrrak, U.
Plass-Dülmer, C.
Stange, G.
Kiss, G.
Hoffer, A.
Töro, N.
Moerman, M.
Henzing, B.
de Leeuw, G.
Brinkenberg, M.
Kouvarakis, G.N.
Bougiatioti, A.
Mihalopoulos, N.
O'Dowd, C.
Ceburnis, D.
Arneth, A.
Svenningsson, B.
Swietlicki, E.
Tarozzi, L.
Decesari, S.
Facchini, M.C.
Birmili, W.
Sonntag, A.
Wiedensohler, A.
Boulon, J.
Sellegri, K.
Laj, P.
Gysel, M.
Bukowiecki, N.
Weingartner, E.
Wehrle, G.
Laaksonen, A.
Hamed, A.
Joutsensaari, J.
Petäjä, T.
Kerminen, V.-M.
Kulmala, M.
TNO Bouw en Ondergrond
Publication year
2010
Abstract
We present comprehensive results on continuous atmospheric cluster and particle measurements in the size range ∼1-42 nm within the European Integrated project on Aerosol Cloud Climate and Air Quality interactions (EUCAARI) project. We focused on characterizing the spatial and temporal variation of new particle formation events and relevant particle formation parameters across Europe. Different types of air ion and cluster mobility spectrometers were deployed at 12 field sites across Europe from March 2008 to May 2009. The measurements were conducted in a wide variety of environments, including coastal and continental locations as well as sites at different altitudes (both in the boundary layer and the free troposphere). New particle formation events were detected at all of the 12 field sites during the year-long measurement period. From the data, nucleation and growth rates of newly formed particles were determined for each environment. In a case of parallel ion and neutral cluster measurements, we could also estimate the relative contribution of ion-induced and neutral nucleation to the total particle formation. The formation rates of charged particles at 2 nm accounted for 1-30% of the corresponding total particle formation rates. As a significant new result, we found out that the total particle formation rate varied much more between the different sites than the formation rate of charged particles. This work presents, so far, the most comprehensive effort to experimentally characterize nucleation and growth of atmospheric molecular clusters and nanoparticles at ground-based observation sites on a continental scale. © Author(s) 2010.
Subject
Earth & Environment
UES - Urban Environment & Safety
EELS - Earth, Environmental and Life Sciences
Environment
air quality
cloud condensation nucleus
cloud microphysics
ground-based measurement
particle motion
spatial variation
spectrometer
temporal variation
volcanic cloud
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http://resolver.tudelft.nl/uuid:edfce6ce-6cdb-4bbb-92b7-9488b8b8789e
TNO identifier
409252
ISSN
1680-7316
Source
Atmospheric Chemistry and Physics, 10 (16), 7907-7927
Document type
article