Suspended sediment transport, sedimentation, and resuspension in Lake Houston, Texas: Implications for water quality

Matty, Jane M.; Anderson, John B.; Dunbar, Robert B.

doi:10.1007/bf02580473

Cited by 12 publications

(6 citation statements)

References 17 publications

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“…Those desorption studies are consistent with analyses of water samples from the North Sea, which indicate that the resuspension of sediment provides a source of both particulate and dissolved metals to surface waters [ Millward et al , 1998]. Similarly, data from sediment traps in Lake Houston, Texas evidence the desorption of trace elements from resuspended sediment occurs [ Matty et al , 1987].…”

Section: Dissolved Metals Input To Baysupporting

confidence: 70%

Groundwater seepage into northern San Francisco Bay: Implications for dissolved metals budgets

Spinelli

Fisher

Wheat

et al. 2002

Water Resources Research

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[1] Nonconservative excesses of dissolved metals in northern San Francisco Bay indicate that there are internal sources of metals within the bay. We quantified groundwater seepage and bioirrigation rates in this area to determine their roles in transporting dissolved metals from benthic sediments to surface waters. We deployed seepage meters and collected sediment, pore water, and bottom water samples at three sites. We determined seepage rates from seepage meters and modeled the transport of water through the sediment using pore water data to constrain rates of diffusion, advection, and bioirrigation. A groundwater flow model incorporating sediment physical properties and local topography constrains more regional seepage estimates. The seepage meters indicate upflow rates from 7 to 56 cm yr À1 in March and April 1999 with some large ( 50 cm yr À1 ) daily fluctuations that greatly exceed predictions based on sediment physical properties and tidally induced pore pressure variations. During this period, results from modeling pore water chemical data are consistent with a small bioirrigation rate (<1.5 Â 10 À7 s À1 ) relative to values determined for southern San Francisco Bay, and an average groundwater upwelling speed of 15 cm yr À1 . The speed and direction of flow changed throughout the year, with best fits to the data ranging from 20 cm yr À1 upflow to 34 cm yr À1 downflow and averaging 4 cm yr À1 upflow. Confidence intervals (95%) are about ±10 cm yr À1 for this method, yet the range of acceptable seepage rates for temporally successive periods only overlap in one of four cases, suggesting that temporal variability can be discerned from potential artifacts. Groundwater flow modeling suggests that the seepage rates determined at our sites represent $45% of the average seepage rate for the area, applying one consolidation and permeability relationship to all sediments. If we apply these approximations to all of northern San Francisco Bay, benthic fluxes of dissolved metals to the surface waters could account for a relatively large amount ( 60%) of the unknown sources of dissolved cobalt and a relatively small amount ( 4%) of the unknown sources of dissolved silver, cadmium, copper, nickel, and zinc. More focused groundwater discharge or elevated metals concentrations are required to have a larger impact on trace element budgets in this setting.

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Section: Dissolved Metals Input To Baysupporting

confidence: 70%

Groundwater seepage into northern San Francisco Bay: Implications for dissolved metals budgets

Spinelli

Fisher

Wheat

et al. 2002

Water Resources Research

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“…As Columbia Lake water levels decreased, wave action and increased bottom shear from turbulent inflows increasingly influenced the resuspension rate of bottom sediments causing SS and TP concentrations in the water column to increase. In a study on drought-induced decreases in lake level, Matty et al (1987) reported increasing sediment resuspension with declining lake level owing to an increased proportion of bottom sediments susceptible to storm-wave action. Mayer et al (1991) determined that particulate phosphorus (PP) loads in the Niagara River were dependent on SS concentrations related to resuspension of bottom sediments in Lake Erie during storm events.…”

Section: Export Characteristics-drawdownmentioning

confidence: 96%

The effect of drawdown on suspended solids and phosphorus export from Columbia Lake, Waterloo, Canada

Shantz

Dowsett

Canham

et al. 2004

Hydrological Processes

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Abstract:This study examines the effect of drawdown on the timing and magnitude of suspended solids and associated phosphorus export from a 12 ha reservoir located in an urbanized watershed in southern Ontario, Canada. Water level in Columbia Lake was lowered by 1Ð15 m over a 2-week period in November 2001. The total phosphorus (TP) concentrations ranged from 63 to 486 µg L 1 in Columbia Lake and 71 to 373 µg L 1 at its outflow. All samples exceeded the Provincial Water Quality Objective of 30 µg TP L 1 . Outflow concentrations of suspended solids and TP increased significantly with decreasing lake level and were attributed to the resuspension of cohesive bottom sediments that occurred at a critical threshold lake level (0Ð65 m below summer level). Suspended solids at the outflow consisted of flocculated cohesive materials with a median diameter (D 50 ) of c. 5 µm. Particulate organic carbon accounted for 8Ð5% of the suspended solids export by mass. A total mass of 18Ð5 t of suspended solids and 62Ð6 kg TP was exported from Columbia Lake, which represents a significant pulse of sediment-associated P to downstream environments each autumn during drawdown. The downstream impacts of this release can be minimized if the water level in Columbia Lake is lowered no more than 0Ð5 m below summer levels.

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“…Hawley et al [42] discussed the transport mechanisms of SS in Lake Michigan using numerical simulation. Matty et al [43] investigated the transportation of SS in Lake Houston. The intensity of the circulation in the lake was periodically high enough to transport coarse silt in suspension.…”

Section: Modeling the Sediment Resuspension Driven By Wind 231 Relate...mentioning

confidence: 99%

Modeling of Sediment Transportation in Ichkeul Lake for the Estimation of the Influence of the Constructions of the Reservoirs in the Upper Streams

Irie

Kotegawa

Kawachi³

et al. 2022

Water

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Rich ecosystems such as estuaries and brackish lakes are vulnerable to the effects of human activities and are prone to environmental changes. In particular, the salt environment, which is the backbone of the environment, might be affected not only by direct modifications such as dredging but also in ways that were not initially envisioned. Ichkeul Lake, located in the northern part of Tunisia, is a shallow brackish lake registered as a UNESCO World Natural Heritage Site. The construction of reservoirs upstream of the inflowing river in the 1980s reduced the amount of freshwater inflow. That only had been thought to be the cause of the increase in salinity in Ishkeul Lake. On the other hand, the sedimentation in the reservoirs upstream was remarkable, and the supply of sediment from the reservoirs upstream to the Ichkeul Lake was stopped. Changes in sediment outflow may have reduced lakebed altitude and enhanced seawater intrusion. However, the environmental protection measures for the lake so far have focused only on improving the water budget and have not been quantitatively evaluated for sediment transportation. In this study, we first estimated the water budget of the lake. Then the re-suspension by wind disturbance in the lake was estimated from the correlation with the wind speed based on laboratory experiments and field measurements. The outflow of the sediment estimated with these two models was compared with the sediment volume trapped in the upstream reservoirs that would have flowed into the lake if there had been no construction of the dams. Based on this, we evaluated whether the lake is currently erosive or cumulative. As a result, the estimated annual outflow of sediment to the sea was 4300 tons/year. It was estimated that the construction of the reservoirs upstream changed the trend of lakebed height from accumulation to erosion.

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Suspended sediment transport, sedimentation, and resuspension in Lake Houston, Texas: Implications for water quality

Cited by 12 publications

References 17 publications

Groundwater seepage into northern San Francisco Bay: Implications for dissolved metals budgets

Groundwater seepage into northern San Francisco Bay: Implications for dissolved metals budgets

The effect of drawdown on suspended solids and phosphorus export from Columbia Lake, Waterloo, Canada

Modeling of Sediment Transportation in Ichkeul Lake for the Estimation of the Influence of the Constructions of the Reservoirs in the Upper Streams

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