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| Titel |
New particle formation events measured on board the ATR-42 aircraft during the EUCAARI campaign |
| VerfasserIn |
S. Crumeyrolle, H. E. Manninen, K. Sellegri, G. Roberts, L. Gomes, M. Kulmala  , R. Weigel, P. Laj, A. Schwarzenboeck |
| 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. 14 ; Nr. 10, no. 14 (2010-07-22), S.6721-6735 |
| Datensatznummer |
250008649
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| Publikation (Nr.) |
 copernicus.org/acp-10-6721-2010.pdf |
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| Zusammenfassung |
| Aerosol properties were studied during an intensive airborne measurement
campaign that took place at Rotterdam in Netherlands in May 2008 within the
framework of the European Aerosol Cloud Climate and Air Quality Interactions
project (EUCAARI). The objective of this study is to illustrate seven events
of new particle formation (NPF) observed with two Condensation Particle
Counters (CPCs) operated on board the ATR-42 research aircraft in airsectors
around Rotterdam, and to provide information on the spatial extent of the
new particle formation phenomenon based on 1-s resolution measurements of
ultra-fine particle (in the size range 3–10 nm diameter, denoted N3-10
hereafter) concentrations. The results show that particle production
occurred under the influence of different air mass origins, at different day
times and over the North Sea as well as over the continent. The number
concentration of freshly nucleated particles (N3-10) varied between
5000 and 100 000 cm−3 within the boundary layer (BL). Furthermore the
vertical extension for all nucleation events observed on the ATR-42 never
exceeded the upper limit of the BL. The horizontal extent of N3-10
could not be delimited due to inflexible flight plans which could not be
modified to accommodate real-time results. However, the NPF events were
observed over geographically large areas; typically the horizontal extension
was about 100 km and larger. |
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