Hypolimnion Flow Between the Central and Eastern Basins of Lake Erie During 1977 (Interbasin Hypolimnion Flows)

Boyce, F.M.; Chiocchio, F.; Eid, B.; Penicka, F.; Rosa, F.

doi:10.1016/s0380-1330(80)72110-x

Cited by 26 publications

(12 citation statements)

References 3 publications

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“…Both modelled and observed isotherms are linearly interpolated from hourly temperature time series at depths of 0, 2, 5, 8, 11, 14, 17, and 24 m. rent is driven by baroclinic flows associated with a basinscale vertical and horizontal mode one seiche in the eastern basin. The strength of the Pennsylvania Current is proportional to the magnitude of the wind forcing (Bartish 1987), and it is observed to periodically fluctuate at periods of 50-150 h (Chiocchio 1981) and 100 h (0.01 cph; Boyce et al 1980), in agreement with the period of the typical storm cycle and our modelled central basin hypolimnetic currents.…”

Section: Discussionsupporting

confidence: 83%

Application of a two-dimensional hydrodynamic reservoir model to Lake Erie

Boegman¹,

Loewen²,

Hamblin³

et al. 2001

Can. J. Fish. Aquat. Sci.

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The relative impacts of changes in nutrient loading and zebra mussel establishment on plankton in large lakes are strongly influenced by hydrodynamics, yet adequately modelling the temporal-spatial complexity of physical and biological processes has been difficult. We adapted a two-dimensional public domain model, CE-QUAL-W2, to test whether it could provide a hydrodynamically accurate simulation of the seasonal variation in the vertical-longitudinal thermal structure of Lake Erie. The physical forcing for the model is derived from surface meteorological buoys and measurements of precipitation, inflows, and outflows. To calibrate and validate the model, predictions were compared with an extensive set of field data collected during May through September 1994. The model accurately predicted water-level fluctuations without adjustment. However, significant modifications to the eddy coefficient turbulence algorithm were required to simulate acceptable longitudinal currents. The thermal structure was accurately predicted in all three basins, even though this laterally averaged model cannot simulate Coriolis effects. We are currently extending the model's water-quality module to include the effects of nutrient loading and zebra mussels on the plankton.

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Section: Discussionsupporting

confidence: 83%

Application of a two-dimensional hydrodynamic reservoir model to Lake Erie

Boegman¹,

Loewen²,

Hamblin³

et al. 2001

Can. J. Fish. Aquat. Sci.

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“…This conforms to the observations of Boyce et al . [] during 1977 and those of Chiocchio [] during 1978. The strongest eastward transport was found in the northern ALP transect (Figure d), and the strongest westward transport was found at the bottom of PC transect (Figure e).…”

Section: Discussionmentioning

confidence: 99%

“…Bartish [] gave a review of the major interbasin exchange mechanisms in Lake Erie, and pointed that the water exchange between the WB and CB is possibly dominated by the hydraulic gradient instead of wind forcing or baroclinic processes based on the observations of Saylor and Miller []. The exchange between the CB and EB is likely to be mainly driven by the surface pressure gradient, based on the tracing of water temperature and oxygen concentrations along the intersection of the two basins [ Boyce et al ., ; Chiocchio , ]. Even though these studies provided insight into dynamics of interbasin water exchanges, these conclusions were drawn based on limited observations [e.g., Boyce et al ., ; Bartish , ; Chiocchio , ; Saylor and Miller , ], and the results of simple numerical models [e.g., Gedney and Lick , ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of interbasin exchange and interannual variability in Lake Erie using an unstructured‐grid hydrodynamic model

et al. 2015

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Interbasin exchange and interannual variability in Lake Erie's three basins are investigated with the help of a three-dimensional unstructured-grid-based Finite Volume Coastal Ocean Model (FVCOM). Experiments were carried out to investigate the influence of grid resolutions and different sources of wind forcing on the lake dynamics. Based on the calibrated model, we investigated the sensitivity of lake dynamics to major external forcing, and seasonal climatological circulation patterns are presented and compared with the observational data and existing model results. It was found that water exchange between the western basin (WB) and the central basin (CB) was mainly driven by hydraulic and density-driven flows, while density-driven flows dominate the interaction between the CB and the eastern basin (EB). River-induced hydraulic flows magnify the eastward water exchange and impede the westward one. Surface wind forcing shifts the pathway of hydraulic flows in the WB, determines the gyre pattern in the CB, contributes to thermal mixing, and magnifies interbasin water exchange during winter. Interannual variability is mainly driven by the differences in atmospheric forcing, and is most prominent in the CB.

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“…Deeper than 20 m we found only one site (#946) with high quagga mussels density and biomass which was located on the eastern edge of the basin. This part of central basin receives well-oxygenated water from the east basin thermocline keeping the eastern part of the central basin hypolimnion better oxygenated than other parts of the central basin (Boyce et al, 1980). Excluding this site, Dreissena average density at depths > 20 m was only 2 ± 1 m −2 and wet biomass was 0.3 ± 0.3 g m -2 .…”

Section: Dreissena Spp Distributionmentioning

confidence: 95%

Biomonitoring using invasive species in a large Lake: Dreissena distribution maps hypoxic zones

Karatayev

Burlakova

Mehler

et al. 2018

Journal of Great Lakes Research

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Due to cultural eutrophication and global climate change, an exponential increase in the number and extent of hypoxic zones in marine and freshwater ecosystems has been observed in the last few decades. Hypoxia, or low dissolved oxygen (DO) concentrations, can produce strong negative ecological impacts and, therefore, is a management concern. We measured biomass and densities of Dreissena in Lake Erie, as well as bottom DO in 2014 using 19 high frequency data loggers distributed throughout the central basin to validate a three-dimensional hydrodynamic-ecological lake model. We found that a deep, offshore hypoxic zone was formed by early August, restricting the Dreissena population to shallow areas of the central basin. Deeper than 20 m, where bottom hypoxia routinely develops, only young of the year mussels were found in small numbers, indicating restricted recruitment and survival of young Dreissena. We suggest that monitoring Dreissena distribution can be an effective tool for mapping the extent and frequency of hypoxia in * Corresponding author.

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Hypolimnion Flow Between the Central and Eastern Basins of Lake Erie During 1977 (Interbasin Hypolimnion Flows)

Cited by 26 publications

References 3 publications

Application of a two-dimensional hydrodynamic reservoir model to Lake Erie

Application of a two-dimensional hydrodynamic reservoir model to Lake Erie

Investigation of interbasin exchange and interannual variability in Lake Erie using an unstructured‐grid hydrodynamic model

Biomonitoring using invasive species in a large Lake: Dreissena distribution maps hypoxic zones

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