Inderscience Publishers

Efficient calculation of urban scale air pollutant dispersion and transformation using the OFIS model within the framework of CityDelta

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CityDelta is a model intercomparison exercise that assesses the performance of the participating models and compares them against observational data, allowing at the same time their validation and further development. In this framework, OFIS, an Eulerian photochemical dispersion model, was applied in several European cities, for both gaseous pollutants and particulate matter. The basic concept of OFIS is presented, along with the recent improvements that have been incorporated into the model. The results presented focus on the comparison, through several statistical indices, between the old version of the model, its improved version and the 3D photochemical dispersion model MUSE, revealing a considerable improvement in the performance of the new model version.

Keywords: urban air quality, photochemical dispersion simulations, air pollution modelling, statistical evaluation, atmospheric dispersion modelling, model intercomparison, CityDelta

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