Velocity surveys and three-dimensional point measurements of basic water-quality constituents in nearshore Lake Erie in the vicinity of Villa Angela Beach and Euclid Creek, Cleveland, Ohio, June 10–12, 2019, and August 19–21, 2019
Dates
Publication Date
2021-10-26
Time Period
2019-06-10
Time Period
2019-06-11
Time Period
2019-06-12
Time Period
2019-08-19
Time Period
2019-08-20
Time Period
2019-08-21
Citation
Boldt, J.A., 2021, Velocity surveys and three-dimensional point measurements of basic water-quality constituents in nearshore Lake Erie in the vicinity of Villa Angela Beach and Euclid Creek, Cleveland, Ohio, June 10–12, 2019, and August 19–21, 2019: U.S. Geological Survey data release, https://doi.org/10.5066/P963OH6M.
Summary
Water velocities and water-quality constituents were measured along planned survey lines, which were generally perpendicular to the shoreline and spaced 100 meters apart, over an approximately 2.3-mile section of nearshore Lake Erie on June 10-12, 2019 (survey 1), and August 19-21, 2019 (survey 2), using a 1200 kHz acoustic Doppler current profiler (ADCP), a YSI 6920 V2 multiparameter sonde, and a YSI EcoMapper autonomous underwater vehicle (AUV). Water-quality data collected in this area included near-surface and three-dimensional measurements of water temperature, specific conductance, pH, dissolved oxygen, turbidity, chlorophyll, and phycocyanin (blue-green algae). The data were geo-referenced with an integrated global navigation [...]
Summary
Water velocities and water-quality constituents were measured along planned survey lines, which were generally perpendicular to the shoreline and spaced 100 meters apart, over an approximately 2.3-mile section of nearshore Lake Erie on June 10-12, 2019 (survey 1), and August 19-21, 2019 (survey 2), using a 1200 kHz acoustic Doppler current profiler (ADCP), a YSI 6920 V2 multiparameter sonde, and a YSI EcoMapper autonomous underwater vehicle (AUV). Water-quality data collected in this area included near-surface and three-dimensional measurements of water temperature, specific conductance, pH, dissolved oxygen, turbidity, chlorophyll, and phycocyanin (blue-green algae). The data were geo-referenced with an integrated global navigation satellite system (GNSS) smart antenna with submeter accuracy. The ADCP, multiparameter sonde, and GNSS antenna were mounted on a marine survey vessel, and data were collected as the survey vessel traversed the lake along planned survey lines. The EcoMapper AUV was programmed to follow the same planned survey lines using an undulating dive pattern (a 15-degree dive angle between the surface and 6 feet above the bottom). There was a total of 43 survey lines which typically started about 50 meters offshore and ended 500 meters offshore, and the survey lines covered the area around the mouth of Euclid Creek, Villa Angela Beach, Wildwood Marina, and the Easterly Wastewater Treatment Plant. Data were post-processed using various software and custom MATLAB scripts. Each water-quality measurement has an associated latitude and longitude (WGS84) and sample depth (in feet) below the surface. All water-quality sensors were calibrated per USGS standard methods prior to the start of the survey. These velocity and water-quality measurements were collected over the course of six total days, three in early summer (survey 1) and three in late summer (survey 2), to characterize circulation, mixing, and transport patterns in nearshore Lake Erie in the vicinity of Euclid Creek and Villa Angela Beach. Additionally, continuous measurements of nearshore currents in Lake Erie in the vicinity of Villa Angela Beach and Euclid Creek, Cleveland, Ohio, were recorded during the summer of 2019. Currents were measured every 15 minutes with a 5-minute averaging interval using two different acoustic Doppler velocity meters (ADVM). The individual datasets from each of these instruments are organized as child items in this data release. See each child item page for additional details.
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Related External Resources
Type: Related Primary Publication
Boldt, J.A., and Jackson, P.R., 2022, Circulation, mixing, and transport in nearshore Lake Erie in the vicinity of Villa Angela Beach and Euclid Creek, Cleveland, Ohio, June 10–12, 2019, and August 19–21, 2019: U.S. Geological Survey Scientific Investigations Report 2021–5122, 78 p., https://doi.org/10.3133/sir20215122.
These data were collected to characterize circulation, mixing, and transport patterns in nearshore Lake Erie in the vicinity of Euclid Creek and Villa Angela Beach. Nearshore currents can play a significant role in transport of contaminants to, along, and away from swimming beaches. Continuous measurements of nearshore currents document the hydrodynamic conditions present at the study site and allow scientists to understand the role nearshore currents play in beach health. Water-quality constituents are typically measured periodically or continuously at set sampling points or at monitoring stations. By mapping the three-dimensional distribution of water quality simultaneously with mapping of currents and further ensuring that the surveys overlap continuous or discrete sampling points, the temporal variability in continuous measurements can be better understood. Three-dimensional water-quality distributions often reveal insight into local processes, point sources for pollution, and effects of infrastructure and restoration efforts on water quality. Finally, these data may be used for calibration or validation of hydrodynamic and water-quality models.
