AERMOD Tech Guide
Gaussian Plume Air Dispersion Model
6.2.3 Penetrated Source Contribution to Concentration Calculations in the CBL
The penetrated source concentration expression is a simple Gaussian form (for both vertical and horizontal plume distributions). The contribution from the horizontal plume state is given by the following:
The total concentration for the terrain responding state has the form of eq. (76) with zr replaced by zp .
The dispersion coefficients (yp & zp ) resulting from the total turbulence (ambient, buoyancy induced & building induced) are calculated using eq. (86).