The CCMS air pollution model intercomparison study |
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| Institution: | 1. Centre for Environmental Policy, Imperial College London, SW7 2AZ, United Kingdom;2. UK Centre for Ecology & Hydrology, Bush Estate, Penicuik, Midlothian EH26 0QB, United Kingdom;3. University of Exeter Medical School, European Centre for Environment and Health, Knowledge Spa, Truro TR1 3HD, United Kingdom;4. The University of Edinburgh, School of Chemistry, Level 3, Murchison House, 10 Max Born Crescent, The King’s Buildings, West Mains Road, Edinburgh EH9 3BF, United Kingdom;1. University Ca, Foscari of Venice, Italy;2. Centro Euro-Mediterraneo sui Cambiamenti Climatici, Italy;1. Department of Mathematics, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh;2. Mathematics Discipline, Khulna University, Khulna, 9208, Bangladesh;1. University of Auckland, Auckland, New Zealand;2. University of Waikato, Hamilton, New Zealand |
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| Abstract: | Four air pollution transport models were tested and compared in an area of ~ 400 × 400 km2. Three models were Eulcrian grid models, the fourth a Lagrangian trajectory model. The data base (emissions and meteorological observations) were essentially the same for all models. Differences in model output could only be a result of the different (numerical) structure of the models and of the differences in processing of the meteorological data. It turned out that the latter was the major source of differences in model results. Generally there was a satisfactory correlation between model results and observed concentrations. Mainly due to the negligence of transport of pollutants into the modelling region, predicted concentrations were considerably lower than the observed. |
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