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FIG. 5.8.4 Multiple plume images used to simulate plume reflections. (Reprinted from U.S. Environmental Protection Agency (EPA), 1987, Industrial source complex (ISC) dispersion model user's guide—Second edition (revised), Vol. 1, EPA-450/4-88-002a, Research Triangle Park, N.C.: Office of Air Quality Planning and Standards, [December].

FIG. 5.8.4 Multiple plume images used to simulate plume reflections. (Reprinted from U.S. Environmental Protection Agency (EPA), 1987, Industrial source complex (ISC) dispersion model user's guide—Second edition (revised), Vol. 1, EPA-450/4-88-002a, Research Triangle Park, N.C.: Office of Air Quality Planning and Standards, [December].

persion equations are ground roughness, thermal characteristics, and meteorological conditions. Plume dispersion tends to increase as each of these factors increases, with the models most sensitive to atmospheric stability.

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