Numerical simulations with a general, three-dimensional mesoscale model that is suitable for air pollution and other mesometeorological studies.

Pennsylvania State University has deveoped a general, hydrostatic model suitable for forecasting flow with characteristic horizontal wavelengths of approximately 10 to 2500 km. under a variety of meteorological conditions. The model is designed to be used as a research tool capable of providing meteorological information necessary for decisions concerning air quality standards. Four experiments were completed which demonstrated the generality of the three-dimensional model, the applicability of the model to many types of pollutant transport and removal problems and the possible used of the model for determining mesoclimatology data sets for regions prone to air pollution incidents. (A.M.T.)