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| Titel |
Formation and transport of photooxidants over Europe during the July 2006 heat wave – observations and GEM-AQ model simulations |
| VerfasserIn |
J. Struzewska, J. W. Kaminski |
| 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 ; 8, no. 3 ; Nr. 8, no. 3 (2008-02-13), S.721-736 |
| Datensatznummer |
250005556
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| Publikation (Nr.) |
 copernicus.org/acp-8-721-2008.pdf |
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| Zusammenfassung |
| The European heat wave of July 2006 was caused by advection of very hot and
dry air from North Africa. Air masses were transported on the western edge of
the high pressure system, centred over Eastern Europe, resulting in
exceptionally high air temperatures over large areas of the continent. In the
first two weeks of July 2006 a severe heat wave affected Central and
North-Eastern Europe. We present a synoptic analysis of the July 2006
European heat wave, resulting formation and transport of photooxidants over
Europe as simulated by the on-line tropospheric chemistry model GEM-AQ. The
model was executed on a global variable grid with ~15 km resolution
over the entire European continent. Modelling results have been compared with
surface observations and vertical soundings of meteorological and air quality
parameters. We find that the calculated error measures, as well as analysis
of time series and trends for selected quantities, indicate good model
performance over the simulation period. The spatial pattern of two exposure
indicators – SOMO35 and AOT40 – showed similarities with the
high temperatures distribution. The zone of highest exposure was located over
Central Europe along the advection path of the hot African air mass. The
exposure to high ozone concentrations in higher latitudes was reduced by the
dilution and aging of polluted air masses advected from over Central Europe. |
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