Plume dispersion measurements from an oil sands extraction plant, March 1976

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  • During March 1976, a plume survey field program was conducted to determine the diffusion coefficients and turbulence parameters associated with the GCOS effluent plume. Airborne measurements were conducted under various meteorological conditions ranging from stable inversions to neutral stability cases. Five cases were selected for detailed analysis of plume geometry, mass flux calculations, and turbulence characteristics. Comparisons were made between observed plume structure and the Gaussian predicted profiles. Lateral and vertical plume spread was derived for each case and compared with the Pasquill-Gifford stability classes. Significant comparisons were made between observed diffusion estimates and the estimates of the standard deviations of the horizontal and vertical wind components.

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