Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"hydropeaking"”.
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Hydropeaking in Alpine rivers: an ecosystem services approach
… generates rapid flow and stage fluctuations (hydropeaking) in the receiving water bodies at a variety of sub-daily time-scales. In this thesis, we describe an approach to quantify such variations, which is easy to apply, requires stream flow data at a readily available resolution, and allows …
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Eco-hydraulic quantication of hydropeaking and thermopeaking: development of modeling and assessment tools
… reaches downstream hydropower plant releases (hydropeaking) is known to produce several adverse ecological effects, strongly linked to morphological characteristics of the downstream channel. Hydropeaking can also alter the thermal regime of the receiving water body (thermopeaking) if released …
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Flow and thermal regimes in river networks: effects of hydropower regulation and climate extremes
… are investigated by analyzing the mechanisms of hydropeaking propagation. Hydrologic and geomorphic contribution framework is proposed and applied for the upper Rhone River basin in Switzerland, a typical hydropower exploited river basin in the mountainous area. • River water temperature response …
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Patterns in Fish Community Structure in a Regulated River
… fish communities in the lower Roanoke River, a hydropeaking system in North Carolina. Fishes were sampled at before and after peaking events over three years; 2007 to 2009. I evaluated trends in species richness, diversity, and assemblage composition. There were no significant differences in …
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Evaluation of the Larval Fish Community in the Missouri River Below Garrison Dam, North Dakota
… little is known about the effects that the hydropeaking operations of Garrison Dam may have on that community. The objectives of this study were to determine the relative abundance and species composition of the ichthyoplankton community and to make an initial assessment of the effects of …
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Longitudinal Patterns of Community Structure for Stream Fishes in a Virginia Tailwater
… 24 km below Philpott Dam on the Smith River, a hydropeaking system in Virginia. Fish were sampled at 12 sites over 8 time periods ranging from 2000 to 2002 across April, June, and October. I evaluated spatial and temporal change in fish community characteristics. Species demonstrated persistent …
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Global development, acoustic and emissive consequences of hydropower
… spatial changes in river soundscapes affected by hydropeaking, compared their frequency composition to unaffected river soundscapes, and critically appraised the ecological implications. The results of Chapter 1 indicate that we are now experiencing an unprecedented growth in global hydropower …
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Evaluating Ecological Influences of Altered Flow Regimes Using Two- and Three-Dimensional Hydrodynamic Models
… availability for juvenile brown trout during hydropeaking. Finally, an unsteadiness parameter β is proposed for determining whether an unsteady flow regime can be either modeled using a truly dynamic flow approach or a quasi-steady flow method.