Title: Validation of the improved AEROPOL model against the Copenhagen data set

Authors: Marko Kaasik, Veljo Kimmel

Addresses: Researcher, Institute of Environmental Physics, University of Tartu, 50090 Tartu, Estonia. ' Researcher, Institute of Environmental Physics, University of Tartu, 50090 Tartu, Estonia

Abstract: The improved Gaussian dispersion model AEROPOL (University of Tartu, Estonia) is validated against the Copenhagen air pollution dispersion dataset belonging to the Model Validation Kit of the Initiative on ||Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes||. Model updates include the application of: surface heat flux instead of indirect indicators of surface layer stability; and two-level wind data instead of one (10 m) level. Validation results show a fair agreement of modelled and measured concentrations. In comparison with several models validated earlier, the scatter of modelled versus measured data is moderate, but a systematic deviation is small. Thus, the AEROPOL model is recommended for urban dispersion calculations in nearly neutral conditions. Best results are expected for long-term average pollution levels.

Keywords: atmospheric dispersion model; model validation; Copenhagen dispersion experiment; Model Validation Kit; AEROPOL; urban air quality.

DOI: 10.1504/IJEP.2003.004256

International Journal of Environment and Pollution, 2003 Vol.20 No.1/2/3/4/5/6, pp.114 - 120

Published online: 10 May 2004 *

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