A statistically derived forecast scheme for winds and temperatures in the Athabasca tar sands area Open Access
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Environmental Research Monograph 1984-4
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Canada, Alberta, Fort McMurray
Syncrude Canada Ltd. operates an oil sands extraction plant in the Athabasca Tar Sands region of northeastern Alberta. Although this facility is designed to maintain resulting ground level air quality within the objectives of Alberta Environment, exceedances of these objectives may occur in extreme meteorological conditions. If these conditions were to be predicted in advance, then plant emissions could be adjusted in order to maintain ground level air quality at a desirable level. The purpose of this study is to develop a forecast scheme, based on analysis of historical, site specific data, which will allow prediction eight hours in advance of real time of those parameters which are required to predict ground level air quality. Specifically, these predictands are: wind speed and direction at stack and plume heights, vertical temperature gradient at stack height, mixing height and horizontal fluctuations of wind direction. Development of the forecast scheme for predictands relating to wind and temperature employed multiple linear regression analyses. Historical data for these parameters were obtained from analysis of 2 399 pibal observations and 2 289 minisonde observations made near the Syncrude plant site over the years 1975 to 1979 inclusive. Concurrent data for the predictors used in the regression equations were obtained from the following national, regional and local sources: the 850 mb pressure level wind field prepared by the Canadian Meteorological Centre (CMC), radiosonde temperature profiles obtained at Fort Smith and Stony Plain, upper air wind profiles and hourly surface records from the Fort McMurray airport, winds and the temperatures from the Tall Tower, and finally, surface winds from the towers at Stony Mountain and Mildred Lake.
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- Conditions of Use Leahey, D.M. and M.C. Hansen, 1984. A statistically derived forecast scheme for winds and temperatures in the Athabasca tar sands area. Syncrude Canada Ltd., Edmonton, Alberta. Environmental Research Monograph 1984-4. 105 pp. Permission for non-commercial use, publication or presentation of excerpts or figures is granted, provided appropriate attribution (as above) is cited. Commercial reproduction, in whole or in part, is not permitted without prior written consent. The use of these materials by the end user is done without any affiliation with or endorsement by Syncrude Canada Ltd. Reliance upon the end user's use of these materials is at the sole risk of the end user.
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