The upper Qu’Appelle water supply project in Saskatchewan, Canada: upland canal ice study

Carstensen, Dirk

doi:10.1007/s00506-015-0235-x

Cited by 5 publications

(5 citation statements)

References 8 publications

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Section: Scenariosmentioning

confidence: 90%

“…Augmenting UQR flows in winter increases the risk of ice scouring and increased erosion due to the shallow water depth[33]. Flows should generally be ramped down over winter as ice thickens[33]. From the modeling results, we suggest that increasing Lake Diefenbaker transfers in open water periods only would see sufficient improvement in BPL without risking damage to the armoring and bed liner in the improved upper section in winter.In the previous attempt to model increased water transfers into BPL (see[7]), changes in nutrient concentrations in the 97 km stretch between Lake Diefenbaker and BPL were estimated for a given flow rate using linear regression and observed data.…”

mentioning

confidence: 90%

“…These current results indicate transfers could be terminated even earlier before the onset of winter.This finding is valuable from a management perspective. Augmenting UQR flows in winter increases the risk of ice scouring and increased erosion due to the shallow water depth[33]. Flows should generally be ramped down over winter as ice thickens[33].…”

mentioning

confidence: 99%

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Water Quality and Flow Management Scenarios in the Qu’Appelle River–Reservoir System Using Loosely Coupled WASP and CE-QUAL-W2 Models

Terry

2023

Water

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The water bodies of the Saskatchewan Prairies suffer multiple stressors, and demand for water is expected to increase. Water quality models can help evaluate water management strategies and risks such as climate change. This study assesses the impact of interbasin water transfers on the water quality of a strategic, eutrophic prairie reservoir that receives poor-quality watershed run-off. A one-dimensional WASP model was used to estimate nutrient transformations in the transfers along a 97 km river channel. The WASP model was then loosely coupled to a two-dimensional CE-QUAL-W2 model of the downstream receiving reservoir. Output from the WASP model was manually transformed into boundary conditions for the CE-QUAL-W2 reservoir model. This method improves on an earlier attempt to estimate nutrient transformations in the transfers using linear regression. Results from the loosely coupled models suggest Buffalo Pound Lake would respond well to the interbasin transfers. The number of threshold exceedances decreased for all modeled water quality variables. Nutrient concentrations were most influenced in the open water season following spring freshet. Any additional reduction of threshold exceedances during winter was minimal in comparison. These results are interesting from a management perspective as increased transfers under winter operations risk ice damage to the river channel.

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Section: Scenariosmentioning

confidence: 90%

mentioning

confidence: 90%

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Water Quality and Flow Management Scenarios in the Qu’Appelle River–Reservoir System Using Loosely Coupled WASP and CE-QUAL-W2 Models

Terry

2023

Water

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“…Several recent studies have evaluated options for augmenting the water supply from LDief to BPL to meet increasing water demand from proposed irrigation expansion projects e.g., [28][29][30][31]. However, there are physical constraints on how much water can be diverted to BPL.…”

Section: Buffalo Pound Lakementioning

confidence: 99%

Buffalo Pound Lake—Modelling Water Resource Management Scenarios of a Large Multi-Purpose Prairie Reservoir

Terry

Davies

2022

Water

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Water quality models are an emerging tool in water management to understand and inform decisions related to eutrophication. This study tested flow scenario effects on the water quality of Buffalo Pound Lake—a eutrophic reservoir supplying water for approximately 25% of Saskatchewan’s population. The model CE-QUAL-W2 was applied to assess the impact of inter-basin water diversion after the impounded lake received high inflows from local runoff. Three water diversion scenarios were tested: continuous flow, immediate release after nutrient loading increased, and a timed release initiated when water levels returned to normal operating range. Each scenario was tested at three different transfer flow rates. The transfers had a dilution effect but did not affect the timing of the nutrient peaks in the upstream portion of the lake. In the lake’s downstream section, nutrients peaked at similar concentrations as the base model, but peaks arrived earlier in the season and attenuated rapidly. Results showed greater variation among scenarios in wet years compared to dry years. Dependent on the timing and quantity of water transferred, some but not all water quality parameters are predicted to improve along with the water diversion flows over the period tested. The results suggest that it is optimal to transfer water while local watershed runoff is minimal.

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“…The paper presents a comprehensive review of the progress that has been achieved in the past years about cavitation in valves including both mechanical heart valves and control valves [7]. The study investigates the additional installation of a pilot channel running along the canal bottom to constrict the flow width and increase the flow depth [8].…”

Section: Introductionmentioning

confidence: 99%

Estimation of efficiency of use of water-lifting equipment in technological processes of agricultural production

Доценко

Batsurovska

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The article presents the estimation of efficiency of use of water-lifting equipment in technological processes of agricultural production. It is outlined the principle of operation water-lifting equipment in technological processes of agricultural production. It is based on increasing the required pressure for the water supply network by direct repeated use of gravitational forces in the form of weight of the liquid column from natural or artificial pressure. The efficiency of the technological process is assessed by the amount of consumption of water and the speed of flow movement. These parameters (optimization criteria) depend on four main independent factors: the head height; volume of transit tanks; pipe diameter; pipe length. The optimal constructive and technological parameters of water-lifting equipment in technological processes of agricultural production are considered.

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The upper Qu’Appelle water supply project in Saskatchewan, Canada: upland canal ice study

Abstract: This study investigates two design options that complement the origi-

Cited by 5 publications

References 8 publications

Water Quality and Flow Management Scenarios in the Qu’Appelle River–Reservoir System Using Loosely Coupled WASP and CE-QUAL-W2 Models

Water Quality and Flow Management Scenarios in the Qu’Appelle River–Reservoir System Using Loosely Coupled WASP and CE-QUAL-W2 Models

Buffalo Pound Lake—Modelling Water Resource Management Scenarios of a Large Multi-Purpose Prairie Reservoir

Estimation of efficiency of use of water-lifting equipment in technological processes of agricultural production

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