Inderscience Publishers

The Austrian guideline for short scale dispersion modelling

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Courtesy of Inderscience Publishers

Dispersion modelling during licensing procedures is, due to the limited time frame, a rather challenging task. Complex building structures or source configurations, which call for sophisticated dispersion models require usually long computation times. A new modelling tool for such applications has been developed in Austria, which is based on simulations for 34 pre–defined source configurations using the Lagrangian Particle Model GRAL (Graz Lagrangian Model). Annual mean, maximum daily mean, and maximum hourly concentrations can be calculated within a few seconds/minutes. The model is already approved by the Austrian ministry and is made available free of charge.

Keywords: dispersion modelling, GRAL, Graz Lagrangian Model, GRAMM, Graz Mesoscale Model, ADAS, simulation, air pollution, air quality

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