air quality assessment & management
Reference and User Manual
Multi-PUFF model PUFF scenarios Mobil sources Meteorological scenarios
Gaussian Puff Model
The Gaussian Puff Model in AirWare is derived from the USEPA model INPUFF 2.4 (Petersen and Lavadas, 1986).
INPUFF is a Gaussian INtegrated PUFF model. It is designed to simulate dispersion from semi-instantaneous or continuous and optionally mobile point sources over a spatially and temporally variable wind field (provided by prognostic meteorological models such as MM5 or WRF, or diagnostically interpolated wind fields). The algorithm is based on a Lagrangian transport framework for a sequence of emission events which disperse with Gaussian puff assumptions including a vertically uniform wind direction field and no chemical reactions.
The analytical solutions for atmospheric concentration of a gaseous or suspended particulate pollutant, incorporating dry deposition and gravitational settling were given by Rao (1982).
PUFF is implemented for:
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