Abstract
The significance of spatial variability of meteorological data was evaluated using calculated and observed annual average air concentrations. The joint frequency distributions of wind velocity and stability measured at eight locations were used as input to a simple diffusion model recommended by NRC to predict annual average air concentrations at 13 sites surrounding the Savannah River Plant, Aiken, SC, U.S.A. The model caused an overprediction of about a factor of three with a variability of about 50% among the eight locations examined. A comparison of linear correlation coefficients between calculated and observed concentration ranges between 0.73 and 0.96 depending upon tower location. The linear correlation coefficients showed no relationship between either distance from the source release point or the amount of meteorological data used to represent the annual frequency distribution of wind and stability.
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