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dc.contributor.authorManninen, H. E.
dc.contributor.authorNieminen, T.
dc.contributor.authorAsmi, E.
dc.contributor.authorGagné, S.
dc.contributor.authorHäkkinen, S.
dc.contributor.authorLehtipalo, K.
dc.contributor.authorAalto, P.
dc.contributor.authorVana, M.
dc.contributor.authorMirme, A.
dc.contributor.authorMirme, S.
dc.contributor.authorHõrrak, U.
dc.contributor.authorPlass-Dülmer, C.
dc.contributor.authorStange, G.
dc.contributor.authorKiss, G.
dc.contributor.authorHoffer, A.
dc.contributor.authorTörő, N.
dc.contributor.authorMoerman, M.
dc.contributor.authorHenzing, B.
dc.contributor.authorde Leeuw, G.
dc.contributor.authorBrinkenberg, M.
dc.contributor.authorKouvarakis, G. N.
dc.contributor.authorBougiatioti, A.
dc.contributor.authorMihalopoulos, N.
dc.contributor.authorO'Dowd, C.
dc.contributor.authorCeburnis, D.
dc.contributor.authorArneth, A.
dc.contributor.authorSvenningsson, B.
dc.contributor.authorSwietlicki, E.
dc.contributor.authorTarozzi, L.
dc.contributor.authorDecesari, S.
dc.contributor.authorFacchini, M. C.
dc.contributor.authorBirmili, W.
dc.contributor.authorSonntag, A.
dc.contributor.authorWiedensohler, A.
dc.contributor.authorBoulon, J.
dc.contributor.authorSellegri, K.
dc.contributor.authorLaj, P.
dc.contributor.authorGysel, M.
dc.contributor.authorBukowiecki, N.
dc.contributor.authorWeingartner, E.
dc.contributor.authorWehrle, G.
dc.contributor.authorLaaksonen, A.
dc.contributor.authorHamed, A.
dc.contributor.authorJoutsensaari, J.
dc.contributor.authorPetäjä, T.
dc.contributor.authorKerminen, V.-M.
dc.contributor.authorKulmala, M.
dc.identifier.citationManninen, 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.; Törő, 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. (2010). Eucaari ion spectrometer measurements at 12 european sites – analysis of new particle formation events. Atmospheric Chemistry and Physics 10 (16), 7907-7927
dc.description.abstractWe present comprehensive results on continuous atmospheric cluster and particle measurements in the size range similar to 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.
dc.publisherCopernicus GmbH
dc.relation.ispartofAtmospheric Chemistry and Physics
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Ireland
dc.subjectcontinental boundary-layer
dc.subjectnucleation mode particles
dc.subjectultra-fine particles
dc.subjectsize distributions
dc.subjectboreal forest
dc.subjectatmospheric nucleation
dc.subjectaerosol formation
dc.subjectresearch station
dc.titleEucaari ion spectrometer measurements at 12 european sites – analysis of new particle formation events

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