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| Titel |
High resolution modelling of aerosol dispersion regimes during the CAPITOUL field experiment: from regional to local scale interactions |
| VerfasserIn |
B. Aouizerats, P. Tulet, G. Pigeon, V. Masson, L. Gomes |
| 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. 15 ; Nr. 11, no. 15 (2011-08-01), S.7547-7560 |
| Datensatznummer |
250009961
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| Publikation (Nr.) |
 copernicus.org/acp-11-7547-2011.pdf |
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| Zusammenfassung |
| High resolution simulation of complex aerosol particle evolution and gaseous
chemistry over an atmospheric urban area is of great interest for
understanding air quality and processes. In this context, the CAPITOUL
(Canopy and Aerosol Particle Interactions in the Toulouse Urban Layer) field
experiment aims at a better understanding of the interactions between the
urban dynamics and the aerosol plumes. During a two-day Intensive
Observational Period, a numerical model experiment was set up to reproduce
the spatial distribution of specific particle pollutants, from the regional
scales and the interactions between different cities, to the local scales
with specific turbulent structures. Observations show that local dynamics
depends on the day-regime, and may lead to different mesoscale dynamical
structures. This study focuses on reproducing these fine scale dynamical
structures, and investigate the impact on the aerosol plume dispersion. The
500-m resolution simulation manages to reproduce convective rolls at
local scale, which concentrate most of the aerosol particles and can locally
affect the pollutant dispersion and air quality. |
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