CALPUFF

DESCRIPTION

CALPUFF is a non-steady-state Lagrangian Gaussian puff model containing modules for complex terrain effects, overwater transport, coastal interaction effects, building downwash, wet and dry removal and simple chemical transformation.

CALPUFF (Scire et al., 1995) is a multi-species non-steady-state puff dispersion model which can simulate the effects of time and space-varying meteorological conditions on pollutant transport, transformation and removal. CALPUFF can use as input both three-dimensional meteorological fields produced by meteorological models or simply single station winds.

CALPUFF contains algorithms for near-source effects such as building downwash, transitional plume rise, partial plume penetration as well as long range effects as dry and wet pollutant removal, chemical transformations, vertical wind shear, over-water transport and coastal interaction effects. It can accommodate point sources, line sources, area sources and volume source of constant or arbitrary varying emission rates.

The Earth Tec Web site above also describes CALPUFF inputs, outputs and applications.

SCALE AND AREAS OF APPLICATION

SURVEY COMMENTS

Four survey respondents reported using CALPUFF, but none provided an evaluation of its effectiveness.

BENEFITS (PROS)

COSTS (CONS)

RECOMMENDATIONS