Ritter, Mathias. An air pollution modeling system for Switzerland using WRF-Chem : development, simulation, evaluation. 2013, PhD Thesis, University of Basel, Faculty of Science.
Official URL: http://edoc.unibas.ch/diss/DissB_10326
The evaluation of spatial and temporal distribution of O3, NO2, NO, PM10 and PM2.5 revealed systematic bias. Post-processing routines with multi-linear regressions eliminated such biases and finally achieved satisfactory results. Yearly averages of air pollutants were simulated with Pearson correlation coefficients up to 0.8. Seasonal trends and spatial distribution are captured correctly by the modeling system. For example, a strong PM10 advection from northern Italy could be shown. Outliers of measurement stations compared to WRF-Chem are explainable by the geographical parameters of the station. Compared to a dedicated dispersion model (PolluMap), WRF-Chem achieved roughly the same statistical values for PM10 and slightly lower ones for NO2 . However, WRF-Chem is able to produce temporally refined output for more pollutants. Modeled diurnal cycles showed smaller amplitudes as measurements. The necessary daily peak values for violations of air quality standards as set by the Swiss government and the European commission can not be reproduced due to the spatial resolution. Overall, WRF-Chem produced useful yearly averages of air pollutants for exposure assessment.
|Committee Members:||Tsai, Ming-Yi|
|Faculties and Departments:||05 Faculty of Science > Departement Umweltwissenschaften > Institut für Meteorologie, Klimatologie und Fernerkundung > Meteorologie (Parlow)|
|Bibsysno:||Link to catalogue|
|Number of Pages:||91 Bl.|
|Last Modified:||30 Jun 2016 10:52|
|Deposited On:||13 Mar 2013 15:53|
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