Modelling the dispersion of pollutants in the atmospheric boundary layer. The experience of ARIANET, products and applications
Starts 27 May 2021 15:00
Ends 27 May 2021 16:30
Central European Time
Lecture 12 in the series: Environmental Meteorology: From the Fundamentals of Climate to Operational Applications
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Abstract: The atmospheric dispersion of pollutants is one of the main phenomena that must be described to obtain an assessment of the air pollution. Among the tools that may allow this, numerical dispersion models constitute one of the main ones. They allow to reconstruct the behavior of pollutants released into the atmosphere by both human activities (transport, heating, industry) and natural phenomena (volcanoes, fires, sand storms). Pollutants are transported by wind and dispersed by turbulence, chemically transformed, deposited by surface contact or removed by rainfall: the aim of the models is to reproduce this complex phenomenology to assess air quality levels that may be harmful to human health and ecosystems. ARIANET has a more than ventennial history in both developing and using this kind of models for many applications at different scales, ranging from impact studies of local industrial pollutant sources to the development, use and maintenance of air quality forecast systems at the national scale. Aim of the seminar is to describe the various products developed and available at ARIANET, including both the Lagrangian Particle Dispersion Model SPRAY and the Eulerian Chemical Transport Model FARM widely used by many institutions in Italy and to give an overview of the many applications of these modeling tools such as in the fields of impact assessment, emergency response, odours, fires, and forecasting systems.
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