Abstract: The problem of dispersion from a ground-level, instantaneous point source into an Ekman boundary layer is studied. First and second moments of the material are found for all heights, directions and times, considerably ...

Abstract: For six stations in the northeastern United States, the spectrum of horizontal wind speed was analyzed using 10 yr of 1-min averaged, hourly surface reports. The fast Fourier transform technique was employed to estimate ...

Abstract: A computer model using actual meteorological data is developed to simulate the effects of wind shear on an instantaneous pollutant puff. The effect of wind shear on dispersion is obtained by subdividing, during the nocturnal ...

Abstract: An overview of the National Oceanic and Atmospheric Administration?s (NOAA) current operational Smoke Forecasting System (SFS) is presented. This system is intended as guidance to air quality forecasters and the public for ...