River Temperature Variation with Freezing and Storageby Charles C.S. Song, (M.ASCE), Assoc. Prof.; Dept. of Civ. and Mineral Engrg., St. Anthony Falls Hydr. Lab., Univ. of Minnesota, Minneapolis, Minn.,
Kim Sau Leung, Research Asst.; St. Anthony Falls Hydr. Lab., Univ. of Minnesota, Minneapolis, Minn.,
Serial Information: Journal of the Environmental Engineering Division, 1978, Vol. 104, Issue 5, Pg. 879-888
Document Type: Journal Paper
Water temperature in the northern part of the United States is significantly affected by the freezing phenomenon. Because of the freezing constraint on the variability of water temperature, there is a good correlation between the mean value and the fluctuating component. The probability density curve of water temperature variation develops a sharp peak near the freezing point. A stochastic model using two independent variables, air temperature variation and the mean daily water temperature, is developed. It is also shown that the water temperature variability tends to decrease as a dimensionless reservoir storage capacity decreases.
Subject Headings: Temperature effects | Freezing | Water storage | Water temperature | Rivers and streams | Air temperature | Probability | Density currents | Correlation | North America | United States
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