This modelling accounts for the vast majority of dispersion modelling work in New Zealand. In medium-complex atmospheric and topographical conditions with relatively simple effects, Gaussian-plume models can produce reliable results. The width of the band associated with each model type is roughly proportional to the number of modellers currently using that particular type. advanced models such as CALPUFF (Scire et al., 2000a) and The Air Pollution Model (TAPM) (Hurley, 2002).įigure 2.1 illustrates the types of models typically applied to particular scenarios, depending on their scale and complexity.Gaussian-plume models such as AUSPLUME, ISCST3 (EPA1), AERMOD (EPA2) and CTDMPLUS (Perry et al., 1989). human health versus amenity effects).įor regulatory purposes in New Zealand, there are two general types of dispersion models that can be used:
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