Pasquill-Gifford-Briggs

This calculation method uses the same Pasquill-Gifford dispersion parameters as the Pasquill-Gifford-Briggs calculation method. Therefore, the dispersion parameters Oy and for this method may be obtained from Figures 6(a) and 6(b) respectively. 

The Pasquill-Gifford dispersion parameters and Brigg s plume rise equations. 

As an alternative to estimating empirical equations. Seinfeld (1986) presents equations that are equivalent to the Pasquill-Gifford curves, as well as several other empirical models. An example of an empirical model presented as a set of formulae is that recommended by Briggs (Gifford, 1976), shown in Table 4-7. 

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