Comparison of measurements and model results for airborne sulphur and nitrogen components with Kriging

• Published in: Atmospheric environment 1993, Vol.27 (6), p.831-844
• Main Authors: Schaug, Jan, Iversen, Trond, Pedersen, Ulf
• Format: Article
• Language: English
• Subjects: Acid rain; Aerosols; Applied sciences; Atmospheric pollution; Exact sciences and technology; Mathematical models; Meteorology; Nitrogen compounds; Pollutants physicochemistry study: properties, effects, reactions, transport and distribution; Pollution; Q1
• ISSN: 0960-1686; 0004-6981
• DOI: 10.1016/0960-1686(93)90005-J

Comparisons have been made between calculations from the Lagrangian model for acid deposition at Meteorological Synthesizing Centre-West (MSC-W) of EMEP and measurements at EMEP sites. Annual averages of aerosol sulphate, sulphate in precipitation and nitrate in precipitation were calculated and compared for selected sites. Site selection was based on data completeness and on results from EMEP interlaboratory exercises. The comparison for sulphates in precipitation and air led to a model underestimation in the north and model overestimation in a belt through the major source regions in central Europe. The comparisons also indicate irregularities at some sites which may be due to influence from local sources, or the data quality, although this is not substantiated. The model estimates of nitrate in precipitation compare well with the measurements, although some characteristics differences occur also for this component.