An air quality modelling system for a medium-sized town: a case study in Estonia

2001 ◽  
Vol 16 (1/2/3/4/5/6) ◽  
pp. 519 ◽  
Author(s):  
M. Kaasik ◽  
V. Kimmel ◽  
H. Kaasik
Keyword(s):  
Air Quality ◽  
Air Quality Modelling ◽  
Modelling System

scholarly journals Sensitivity of air quality modelling to different emission inventories: a case study over Europe

2021 ◽  
pp. 100111
Author(s):  
Philippe Thunis ◽  
Monica Crippa ◽  
Cornelis Cuvelier ◽  
Diego Guizzardi ◽  
Alexander de Meij ◽  
...  
Keyword(s):  
Air Quality ◽  
Emission Inventories ◽  
Air Quality Modelling

scholarly journals Aerosols in the CALIOPE air quality modelling system: validation and analysis of PM levels, optical depths and chemical composition over Europe

2011 ◽  
Vol 11 (7) ◽  
pp. 20575-20629
Author(s):  
S. Basart ◽  
M. T. Pay ◽  
O. Jorba ◽  
C. Pérez ◽  
P. Jiménez-Guerrero ◽  
...  
Keyword(s):  
Air Quality ◽  
Chemical Composition ◽  
Air Quality Modelling ◽  
Po Valley ◽  
Aerosol Mass ◽  
Forecasting System ◽  
Bulk Parameters ◽  
Quality Threshold ◽  
Daily Pm10 ◽  
Modelling System

Abstract. The CALIOPE high-resolution air quality modelling system is developed and applied to Europe (12 km × 12 km, 1 h). The modelled daily to seasonal aerosol variability over Europe in 2004 have been evaluated and analysed. The aerosols are estimated from two models, CMAQv4.5 (AERO4) and BSC-DREAM8b. CMAQv4.5 calculates biogenic, anthropogenic and sea salt aerosol and BSC-DREAM8b provides the natural mineral dust contribution from North African deserts. For the evaluation, we use daily PM10/PM2.5 and chemical composition data from 54 stations of the EMEP/CREATE network and coarse and fine aerosol optical depth (AOD) data from 35 stations of the AERONET sun photometer network. The model achieves daily PM10 and PM2.5 correlations of 0.57 and 0.47, respectively, and total, coarse and fine AOD correlations of 0.51, 0.63, and 0.53, respectively. The higher correlations of the PM10 and the coarse mode AOD are largely due to the accurate representation of the African dust influence in the forecasting system. Overall PM and AOD levels are underestimated. The evaluation of the chemical composition highlights underestimations of the modelled fine fractions particularly for carbonaceous matter (EC and OC) and secondary inorganic aerosols (SIA; i.e. nitrates, sulphates and ammonium). The scores of the bulk parameters are significantly improved after applying a simple model bias correction based on the chemical composition observations. SIA are dominant in the fine fractions representing up to 80 % of the aerosol budget in latitudes beyond 40° N. The highest aerosol concentrations are found over the industrialized and populated areas of the Po Valley and the Benelux regions. High values in southern Europe are linked to the transport of coarse particles from the Sahara desert which contributes up to 40 % of the total aerosol mass. Close to the surface, maxima dust seasonal concentrations (>30 μg m–3) are found between spring and early autumn. We estimate that desert dust causes daily exceedances of the PM10 European air quality threshold (50 μg m–3) in large areas south of 45° N reaching up to more than 75 days per year in the southernmost regions.

PRESAXIO regional air quality modelling system: validation and applications

2014 ◽  
Vol 55 (1/2/3/4) ◽  
pp. 192 ◽  
Author(s):  
Jose A. Souto ◽  
Santiago Saavedra ◽  
Angel Rodriguez ◽  
Maria Dios ◽  
Javier Lopez ◽  
...  
Keyword(s):  
Air Quality ◽  
Air Quality Modelling ◽  
System Validation ◽  
Regional Air Quality ◽  
Modelling System

scholarly journals Aerosols in the CALIOPE air quality modelling system: evaluation and analysis of PM levels, optical depths and chemical composition over Europe

2012 ◽  
Vol 12 (7) ◽  
pp. 3363-3392 ◽  
Author(s):  
S. Basart ◽  
M. T. Pay ◽  
O. Jorba ◽  
C. Pérez ◽  
P. Jiménez-Guerrero ◽  
...  
Keyword(s):  
Air Quality ◽  
Fine Fraction ◽  
Ground Level ◽  
Air Quality Modelling ◽  
Aerosol Composition ◽  
Dust Transport ◽  
Desert Dust ◽  
Po Valley ◽  
Limit Value ◽  
Modelling System

Abstract. The CALIOPE air quality modelling system is developed and applied to Europe with high spatial resolution (12 km × 12 km). The modelled daily-to-seasonal aerosol variability over Europe in 2004 is evaluated and analysed. Aerosols are estimated from two models, CMAQv4.5 (AERO4) and BSC-DREAM8b. CMAQv4.5 calculates biogenic, anthropogenic and sea salt aerosol and BSC-DREAM8b provides the natural mineral dust contribution from North African deserts. For the evaluation, we use daily PM10, PM2.5 and aerosol components data from 55 stations of the EMEP/CREATE network and total, coarse and fine aerosol optical depth (AOD) data from 35 stations of the AERONET sun photometer network. Annual correlations between modelled and observed values for PM10 and PM2.5 are 0.55 and 0.47, respectively. Correlations for total, coarse and fine AOD are 0.51, 0.63, and 0.53, respectively. The higher correlations of the PM10 and the coarse mode AOD are largely due to the accurate representation of the African dust influence in the forecasting system. Overall PM and AOD levels are underestimated. The evaluation of the aerosol components highlights underestimations in the fine fraction of carbonaceous matter (EC and OC) and secondary inorganic aerosols (SIA; i.e. nitrate, sulphate and ammonium). The scores of the bulk parameters are significantly improved after applying a simple model bias correction based on the observed aerosol composition. The simulated PM10 and AOD present maximum values over the industrialized and populated Po Valley and Benelux regions. SIA are dominant in the fine fraction representing up to 80% of the aerosol budget in latitudes north of 40° N. In southern Europe, high PM10 and AOD are linked to the desert dust transport from the Sahara which contributes up to 40% of the aerosol budget. Maximum seasonal ground-level concentrations (PM10 > 30 μg m−3) are found between spring and early autumn. We estimate that desert dust causes daily exceedances of the PM10 European air quality limit value (50 μg m−3) in large areas south of 45° N with more than 75 exceedances per year in the southernmost regions.

Modelling gaseous dry deposition in AURAMS: a unified regional air-quality modelling system

2002 ◽  
Vol 36 (3) ◽  
pp. 537-560 ◽  
Author(s):  
Leiming Zhang ◽  
Michael D. Moran ◽  
Paul A. Makar ◽  
Jeffrey R. Brook ◽  
Sunling Gong
Keyword(s):  
Air Quality ◽  
Dry Deposition ◽  
Air Quality Modelling ◽  
Regional Air Quality ◽  
Modelling System
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