Abstract
A study was conducted to evaluate the ability of a steady-state Gaussian model to simulate plume dispersion over elevated terrain. MULTIMAX, a multisource model equivalent to the Environmental Protection Agency's CRSTER model, was used in the study. The effects of using different combinations of onsite and offsite meteorological data with six different terrain treatment techniques were investigated. The modeling results are compared with measured data obtained during an intensive field study conducted at the Tennessee Valley Authority's Widows Creek Steam Plant. Although the model initially failed to simulate the various dispersion conditions, the results improved significantly after modifications were made to the model and the meteorological preprocessor program.
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