A preliminary investigation of the nocturnal temperature structure above the city of Edmonton, Alberta

Abstract

Information about the nocturnal temperature structure over Edmonton, Alberta. Observations of the temperature fields, including two- and three-dimensional forms of the nocturnal heat island, were obtained from minisonde ascents, an instrumented helicopter, and towers during a 3-week urban air-pollution field study. Results show that urban-induced temperature modification is typically in the lowest 100 m above ground. Along the direction of the prevailing wind, there is a progressive modification of very stable upwind air as it flows toward the city center, the urban air being less stable. Implications of these observed features on urban air pollutants are discussed.

Parent Publication

• Proceedings of the conference on metropolitan physical environment

Citation

Yap, D. 1977. A preliminary investigation of the nocturnal temperature structure above the city of Edmonton, Alberta. In: Heisler, Gordon M.; Herrington, Lee P., eds. Proceedings of the conference on metropolitan physical environment; Gen. Tech. Rep. NE-25. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 77-87