Lagrangian
The Lagrangian dispersion model mathematically follows the pollution plume parcels movement in the atmosphere and they model the motion of the parcels as a random walk process. The Lagrangian model then calculates the air pollution dispersion by computing the statistics of the trajectories of a large number of the pollution plume parcels.This is the most commonly used model for odour modelling.
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AUSTAL2000, a Lagrangian particle model in compliance with the German guideline VDI 3945 Part 3, has been developed on behalf of the German Federal Environmental Agency. AUSTAL2000 is provided by the Federal Environmental Agency as a free reference implem ...
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CALPUFF is an advanced, non-steady-state meteorological and air quality modeling system developed by ASG scientists. Nowadays it is maintained and distributed by Lakes Environmental. The model was adopted by the U.S. Environmental Protection Agency (U.S. ...
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GRAMM/GRAL is an advanced open source non‑steady‑state meteorological and air quality modeling system developed at the University of Innsbruck. It is maintained by its developers and distributed by the company Enviroware. The model is widely used around t ...
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LAPMOD is an advanced, non‑steady‑state Lagrangian particle model developed for simulating atmospheric dispersion of pollutants over complex terrain and urban environments. It treats pollutant mass as moving particles advected by the wind and dispersed by ...