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| Titel |
Overview of the synoptic and pollution situation over Europe during the EUCAARI-LONGREX field campaign |
| VerfasserIn |
T. Hamburger, G. McMeeking, A. Minikin, W. Birmili, M. Dall'Osto, C. O'Dowd, H. Flentje, B. Henzing, H. Junninen, A. Kristensson, G. Leeuw, A. Stohl, J. F. Burkhart, H. Coe, R. Krejci, A. Petzold |
| 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 ; 11, no. 3 ; Nr. 11, no. 3 (2011-02-07), S.1065-1082 |
| Datensatznummer |
250009292
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| Publikation (Nr.) |
 copernicus.org/acp-11-1065-2011.pdf |
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| Zusammenfassung |
In May 2008 the EUCAARI-LONGREX aircraft field campaign was conducted within
the EUCAARI intensive observational period. The campaign aimed at studying the distribution and evolution of air
mass properties on a continental scale. Airborne aerosol and trace gas measurements were
performed aboard the German DLR Falcon 20 and the British FAAM BAe-146 aircraft. This paper
outlines the meteorological situation over Europe during May 2008 and the temporal and
spatial evolution of predominantly anthropogenic particulate pollution inside the boundary
layer and the free troposphere. Time series data of six selected ground stations are used to
discuss continuous measurements besides the single flights. The observations encompass total
and accumulation mode particle number concentration (0.1–0.8 μm) and black carbon
mass concentration as well as several meteorological parameters. Vertical profiles of total
aerosol number concentration up to 10 km are compared to vertical profiles probed during
previous studies.
During the first half of May 2008 an anticyclonic blocking event dominated the weather over
Central Europe. It led to increased pollutant concentrations within the centre of the high
pressure inside the boundary layer. Due to long-range transport the accumulated pollution
was partly advected towards Western and Northern Europe. The measured aerosol number
concentrations over Central Europe showed in the boundary layer high values up to
14 000 cm−3 for particles in diameter larger 10 nm and
2300 cm−3 for accumulation mode particles during the high pressure period,
whereas the middle free troposphere showed rather low concentrations of particulates. Thus
a strong negative gradient of aerosol concentrations between the well mixed boundary layer
and the clean middle troposphere occurred. |
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