CALPUFF is a non-steady three-dimensional Lagrangian plume transport model. The vertical coordinate uses the terrain following coordinate, the horizontal structure is a uniform grid, the spatial resolution is one to several hundred kilometers, and the vertical is non-uniformly divided into more than 30 layers. Pollutants include SO2, NOx, CmHn, O3, CO, NH3, PM10 (TSP), Black Carbon, mainly including pollutants emission, advection transport, diffusion, dry deposition and wet deposition.
