A novel approach for the characterization of transport and optical properties of aerosol particles near sources – II. Microphysics-chemistry-transport model development and application

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Authors

VALDEBENITO Alvaro M. PAL Sandip BEHRENDT Andreas WULFMEYER Volker LAMMEL Gerhard

Year of publication 2011
Type Article in Periodical
Magazine / Source Atmospheric Environment
MU Faculty or unit

Faculty of Science

Citation
Doi http://dx.doi.org/10.1016/j.atmosenv.2010.09.004
Field Air pollution and control
Keywords Large-eddy simulation; Aerosol physical modelling; Agricultural aerosol source; Aerosol optical properties; Lidar signal
Description A new high-resolution microphysics-chemistry-transport model (LES-AOP) was developed and applied for the investigation of aerosol transformation and transport in the vicinity of a livestock facility in northern Germany (PLUS1 field campaign). The model is an extension of a Large-Eddy Simulation (LES) model. The PLUS1 field campaign included the first deployment of the new eye-safe scanning aerosol lidar system of the University of Hohenheim. In a combined approach, model and lidar results were used to characterise a faint aerosol source. The farm plume structure was investigated and the absolute value of particle backscatter coefficient was determined. Aerosol optical properties were predicted on spatial and temporal resolutions below 100 m and 1 min, upon initialisation by measured meteorological and size-resolved particulate matter mass concentration and composition data. Faint aerosol plumes corresponding to a particle backscatter coefficient down to 10(-6) sr(-1) m(-1) were measured and simulated.
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