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Effects of Flaming Gorge Dam Hydropower Operations on Downstream Flow, Stage, and Sediment Transport

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Title	Effects of Flaming Gorge Dam Hydropower Operations on Downstream Flow, Stage, and Sediment Transport
Description	This paper presents the development of release patterns and resulting downstream flows, stages, and sediment transport for four hydropower operational scenarios proposed for the dam. The results of this study are useful for assessing potential impacts of the hydropower operational scenarios on riparian vegetation, trout, and native fishes of the Green River.
Abstract	Hydropower operations at Flaming Gorge Dam, located on the Green River in Utah, can produce rapid downstream changes in flow and stage. These changes can in turn affect sediment transport and ecologic resources below the dam. To evaluate these effects, four hydropower operational scenarios with varying degrees of hydropower-release fluctuations were examined. This study demonstrates that the combined use of river-flow routing, water-surface profile, and sediment-transport models can provide useful information for evaluating the potential impacts of hydropower-operations on ecological and other resources downstream of the dam. Study results show that flow fluctuations may or may not persist for a long distance, depending on the initial magnitude of fluctuation and the duration of hydropower peaking. Stage fluctuations depend not only on flow fluctuations but also on river channel characteristics, such as channel width and longitudinal slope.
Subject	Hydroelectric power plants -- Environmental aspects -- Utah -- Green River
Creator	Yin, S. C. L. (Stephen C. L.) Cho, H. E. Tomasko, D. Williams, G.
Publisher	Made available by: Utah State University, Merrill-Cazier Library
Language	en
Rights	This is a government document and may be used without restriction.
Date Digital	2007-11-07
Material Type	Reports Government documents Electronic books
Type	Text
Format	Text/pdf
Conversion Specifications	Pdf file uploaded from USU Government Documents Collection.
Identifier	DE97000547.pdf
Search Date	1996

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