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| Titel |
Analysis of nucleation events in the European boundary layer using the regional aerosol–climate model REMO-HAM with a solar radiation-driven OH-proxy |
| VerfasserIn |
J.-P. Pietikäinen, S. Mikkonen, A. Hamed, A. I. Hienola, W. Birmili, M. Kulmala  , A. Laaksonen |
| 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 ; 14, no. 21 ; Nr. 14, no. 21 (2014-11-07), S.11711-11729 |
| Datensatznummer |
250119144
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| Publikation (Nr.) |
 copernicus.org/acp-14-11711-2014.pdf |
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| Zusammenfassung |
| This work describes improvements in the regional aerosol–climate
model REMO-HAM in order to simulate more realistically the process
of atmospheric new particle formation (NPF). A new scheme was
implemented to simulate OH radical concentrations using a proxy
approach based on observations and also accounting for the effects
of clouds upon OH concentrations. Second, the nucleation rate
calculation was modified to directly simulate the formation rates of
3 nm particles, which removes some unnecessary steps in the
formation rate calculations used earlier in the model. Using the
updated model version, NPF over Europe was simulated for the periods
2003–2004 and 2008–2009. The statistics of the simulated particle
formation events were subsequently compared to observations from 13
ground-based measurement sites. The new model shows improved
agreement with the observed NPF rates compared to former versions
and can simulate the event statistics realistically for most parts
of Europe. |
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