Wave-movement and water-quality variations during a controlled release from Kielder Reservoir, North Tyne River, U.K.

Petts, Geoffrey E.; Foulger, T.R.; Gilvear, David; Pratts, J.D.; Thomas, Maria

doi:10.1016/0022-1694(85)90129-5

Cited by 33 publications

(23 citation statements)

References 8 publications

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“…The TSS peak followed by rapid sediment exhaustion with each successive flow increase is likely due to the release of fine sediment by the loosening of the gravel bed structure and/or entrainment of larger particle sizes. In a pulse release study by Petts et al (1985), it was suggested that the magnitude of the pulse and the size of the flow increase (the change in magnitude) both play roles in controlling the TSS signature. They found that the velocity created along the riverbed by the kinematic wave is dependent not only on the flow but also on the size of the increased flow.…”

Section: Boundary Condition: Site Amentioning

confidence: 98%

Water quality response to a pulsed‐flow event on the Mokelumne river, California

Henson

Ahearn

Dahlgren

et al. 2007

River Research & Apps

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Controlled water releases from reservoirs (i.e. artificial floods) are used as a management technique to remove fine sediments and detrital materials from spawning gravels, mobilize gravel bars and clear encroaching brush from stream banks. The effects of a managed release event on water quality were investigated on the lower Mokelumne River in the western Sierra Nevada, California. The managed release was characterized by an increase in flow over a 4-day period (from 11 to 57 m 3 s À1 ). Automatic pump samplers were used to collect samples for water quality from 0.7, 16.4, 37.4 and 54.4 km below Camanche Dam. These sampling sites provided water quality data for three distinct stream reaches: a gravel and sand-textured substrate reach (0.7-16.4 km), a reach characterized by lentic conditions associated with a small reservoir (16.4-37.4 km), and fine sand and silt-textured substrate reach (37.4-54.4 km). Water samples were analysed for total suspended solids (TSS), total nitrogen, ammonium (NH 4 -N), nitrate (NO 3 -N), total phosphorus, soluble reactive phosphorus (SRP), dissolved organic carbon (DOC), foecal coliforms and E. coli. Chemographs for all constituents exhibited spikes in concentration with each increase in streamflow for the rising limb. Fluxes of TSS, total P and total N released from the 0.7 to 16.4 km reach were 322, 0.32 and 0.70 Mg, respectively. The small reservoir acted as a sink for particulate materials retaining about 50% of TSS, 48% of total P and 43% of total N. However, the reservoir acted as a source of dissolved nutrients (NO 3 -N ¼ 0.28 Mg and SRP ¼ 0.055 Mg). The stream reach below the reservoir (37.4 to 54.4 km) was a source of particulate materials, dissolved nutrients and bacteria, possibly due to agricultural and urban inputs.

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Section: Boundary Condition: Site Amentioning

confidence: 98%

Water quality response to a pulsed‐flow event on the Mokelumne river, California

Henson

Ahearn

Dahlgren

et al. 2007

River Research & Apps

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“…Einstein, 1943;Miller, 1951;Walling, 1977;Gilvear and Petts, 1985;Petts et al, 1985;Ferguson, 1986;Cohn et al, 1992;Phillips et al, 1999). The 'rating-curve' is a flux-averaged suspended sediment concentration, C, as a function of water discharge, Q.…”

Section: Introductionmentioning

confidence: 99%

Predictability of river flow and suspended sediment transport in the Mississippi River basin: a non‐linear deterministic approach

Sivakumar

Wallender

2005

Earth Surf Processes Landf

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As the Mississippi River plays a major role in fulfilling various water demands in North America, accurate prediction of river flow and sediment transport in the basin is crucial for undertaking both short-term emergency measures and long-term management efforts. To this effect, the present study investigates the predictability of river flow and suspended sediment transport in the basin. As most of the existing approaches that link water discharge, suspended sediment concentration and suspended sediment load possess certain limitations (absence of consensus on linkages), this study employs an approach that presents predictions of a variable based on history of the variable alone. The approach, based on non-linear determinism, involves: (1) reconstruction of single-dimensional series in multi-dimensional phase-space for representing the underlying dynamics; and (2) use of the local approximation technique for prediction. For implementation, river flow and suspended sediment transport variables observed at the St. Louis (Missouri) station are studied. Specifically, daily water discharge, suspended sediment concentration and suspended sediment load data are analysed for their predictability and range, by making predictions from one day to ten days ahead. The results lead to the following conclusions: (1) extremely good one-day ahead predictions are possible for all the series; (2) prediction accuracy decreases with increasing lead time for all the series, but the decrease is much more significant for suspended sediment concentration and suspended sediment load; and (3) the number of mechanisms dominantly governing the dynamics is three for each of the series.

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“…This was confirmed by Gilvear (1987) during a similar study. Petts et al (1985) monitored a reservoir release from Kielder Reservoir to the North Tyne River, UK. At all sites peak suspended sediment concentration occurred before peak discharge, but the time lag decreased downstream.…”

Section: Introductionmentioning

confidence: 99%

“…Gilvear, 1987;Petts et al, 1985;Leeks & Newson, 1989). In all studies the celerity of the discharge wave exceeded that of the suspended sediment wave.…”

Section: Introductionmentioning

confidence: 99%

Relative velocities of discharge and sediment waves for the River Severn, UK

Bull

1997

Hydrological Sciences Journal

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It is generally accepted that the celerity of a discharge wave exceeds that of a floodwave. The discharge wave is the initial wavefront (shown by an increase in stage at a particular site), whereas the floodwave refers to the body of water moving downstream. Yet, few studies have investigated the varying relationship between discharge and suspended sediment concentration as floods propagate downstream. This paper examines the relative velocities of the discharge and sediment waves for natural flood events on the River Severn, UK. Four monitoring stations were established within the upper 35 km reach of the River Severn (drainage basin area 380 km 2 ). Discharge was monitored using fixed structures, and suspended sediment concentrations were monitored at similar locations using Partech IR40C turbidity meters. Results showed discharge wave celerity increased with flood magnitude, but relationships were more complex for sediment wave celerity. Sediment wave celerity was greater than discharge wave celerity, and is attributed to the dominant source of sediment, which is most probably bank erosion. Les vitesses relatives des ondes d'écoulement d'eau et de sédiment de la Severn (Royaume-Uni)Résumé On admet généralement que la vitesse d'une onde d'écoulement est supérieure à celle d'une onde de crue. Cependant, peu d'études ont examiné la relation variable entre l'écoulement de l'eau et la concentration des matières en suspension lorsqu'une onde de crue se propage vers l'aval. Cet article étudie les vitesses relatives des ondes d'écoulement et de transport de sédiments pour des crues naturelles de la Severn (Royaume-Uni). On a mis en place quatre stations de mesure sur les 35 km du bief supérieur de la Severn (la surface du bassin versant étant de 380 km 2 ). On a mesuré le débit grâce à des installations fixes, et on a mesuré les concentrations des matières en suspension aux mêmes lieux à l'aide de compteurs de turbidité Partech IR40C. Les résultats ont montré que la vitesse de l'onde augmentait avec l'intensité de la crue, mais les relations étaient plus complexes en ce qui concerne la vitesse des ondes de sédiments. La vitesse des ondes de sédiments est plus grande que la vitesse des ondes d'écoulement, ce qui a été attribué à l'origine principale des sédiments qui est, selon toute probabilité, l'érosion des berges.

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Wave-movement and water-quality variations during a controlled release from Kielder Reservoir, North Tyne River, U.K.

Cited by 33 publications

References 8 publications

Water quality response to a pulsed‐flow event on the Mokelumne river, California

Water quality response to a pulsed‐flow event on the Mokelumne river, California

Predictability of river flow and suspended sediment transport in the Mississippi River basin: a non‐linear deterministic approach

Relative velocities of discharge and sediment waves for the River Severn, UK

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