Research Article
Apr 1977
Stochastic Properties of Daily Temperature in Rivers
Authors: Charles C.S. Song, M.ASCE, and Chun-Yen ChienAuthor Affiliations
Publication: Journal of the Environmental Engineering Division
Volume 103, Issue 2
Abstract
Some stochastic properties of the daily range of water temperature variations in rivers, most of which are located in the central part of the United States, were analyzed using data published by the U.S. Geological Survey. It was found that the water temperature variation follows quite closely the patterns of air temperature variation when the river is not subjected to freezing. Freezing tends to inhibit the water temperature variation, and the degree of daily temperature variation diminishes as the daily mean temperature approaches 0°C. As a result the daily range of water temperature variation of a freezing river is highly correlated with daily mean water temperature. Some aspects of auto-regression and cross-regression models were reviewed and applied. An air-water temperature response coefficient was found to correlate well with a dimensionless number representing the ratio of the characteristic period of air temperature variation and the characteristic time scale of heat transfer in a river.
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Published In
Journal of the Environmental Engineering Division
Volume 103 • Issue 2 • April 1977
Pages: 217 - 231
Copyright
© 1977 American Society of Civil Engineers.
History
Published in print: Apr 1977
Published online: Feb 11, 2021
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Affiliations
Charles C.S. Song, M.ASCE
Assoc. Prof.; Univ. of Minnesota, Dept. of Civ. and Mineral Engrg., St. Anthony Falls Hydr. Lab., Minneapolis, Minn.
Chun-Yen Chien
Chf. Planner; 4th Planning Group, Bureau of Irrigation, Taiwan, Republic of China
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.