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| Titel |
EUCAARI ion spectrometer measurements at 12 European sites – analysis of new particle formation events |
| VerfasserIn |
H. E. Manninen, T. Nieminen, E. Asmi, S. Gagné, S. Häkkinen, K. Lehtipalo, P. Aalto, M. Vana, A. Mirme, S. Mirme, U. Hõrrak, C. Plass-Dülmer, G. Stange, G. Kiss, A. Hoffer, N. Törő, M. Moerman, B. Henzing, G. Leeuw, M. Brinkenberg, G. N. Kouvarakis, A. Bougiatioti, N. Mihalopoulos, C. O'Dowd, D. Ceburnis, A. Arneth, B. Svenningsson, E. Swietlicki, L. Tarozzi, S. Decesari, M. C. Facchini, W. Birmili, A. Sonntag, A. Wiedensohler, J. Boulon, K. Sellegri, P. Laj, M. Gysel, N. Bukowiecki, E. Weingärtner, G. Wehrle, A. Laaksonen, A. Hamed, J. Joutsensaari, T. Petäjä, V.-M. Kerminen, M. Kulmala  |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 10, no. 16 ; Nr. 10, no. 16 (2010-08-25), S.7907-7927 |
| Datensatznummer |
250008728
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| Publikation (Nr.) |
 copernicus.org/acp-10-7907-2010.pdf |
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| Zusammenfassung |
| 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. |
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