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Permanent link (DOI): https://doi.org/10.7939/R3KX6Q

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Forebay Thermal Dynamics at Hydropower Facilities on the Columbia River System Open Access

Descriptions

Other title
Subject/Keyword
multiple vertical modes
linear stratification
thermal dynamics
thermal stratification
seiche
selective withdrawal
continuous stratification
fish entrainment
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Robertson, Catherine B.
Supervisor and department
Zhu, David (Water Resources Engineering)
Examining committee member and department
Flynn, Morris (Mechanical Engineering)
Zhu, David (Water Resources Engineering)
Steffler, Peter (Water Resources Engineering)
Department
Department of Civil and Environmental Engineering
Specialization
Water Resources Engineering
Date accepted
2012-07-09T11:48:18Z
Graduation date
2012-11
Degree
Master of Science
Degree level
Master's
Abstract
The risk of fish entrainment is influenced by thermal dynamics within reservoir forebays. The study objective was to understand these dynamics at Kinbasket (Mica Dam), Revelstoke (Revelstoke Dam), and Arrow Lakes (Hugh Keenleyside Dam) reservoirs on the Columbia River. Temperature profiles measured in the forebay of Arrow Lake and Kinbasket portrayed two-layer and linear temperature profiles, respectively. A waveform analysis revealed most internal seiching periods were wind driven and multiple vertical modes at Kinbasket. In Kinbasket, 1 day mid-depth seiches had negative and positive correlations with low and high discharges, respectively. Calculations showed some Arrow Lake seiching was controlled by a boundary 100km upstream. Kinbasket seiching was controlled by 150km and 15km reaches. Calculations revealed selective withdrawal from the epiliminion in Arrow Lakes and withdrawal layer growth with discharge in Kinbasket. Revelstoke and Kinbasket historic temperature profiles were similar. Warmer local inflow at Revelstoke allowed development of an epiliminion layer.
Language
English
DOI
doi:10.7939/R3KX6Q
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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