This data release contains acoustic Doppler current profiler (ADCP) data used in generating a model of sediment flux through Carquinez Strait, CA at Benicia Bridge. The ADCP outputs binary data files containing measurement scheme, location, time, velocity, backscatter, boat heading, depth, and other parameters. There are two forms of data provided, one collected from two transects along the western side of Benicia Bridge and one collected with two stationary, upward-looking ADCPs deployed on the bed 300 m seaward of Benicia Bridge. These data are provided in ".csv" format for the transect data, and ".dat" format for the upward-facing data, as described in the READMEforCSV.txt and READMEforDAT.txt files associated with this data release.

Field observations of water and suspended-sediment fluxes were conducted at Benicia Bridge and Mallard Island during the 2019 water year wet season to capture suspended-sediment flux during elevated Sacramento–San Joaquin Delta discharge. Measurements occurred on two occasions: 1) 26th of February 2019 at Benicia Bridge and Mallard Island, following a storm event that increased delta outflow and 2) 10th April 2019 at Benicia Bridge, following peak delta outflow for the 2019 water year. On both occasions, flux of water and suspended sediment were estimated using data from a boat-mounted acoustic Doppler current profiler. This instrument provided high-resolution velocity and acoustic backscatter (ABS) data at a cross-section (“transect”) near the estuary-ocean boundary, approximately 1.5 km seaward (southwest) of Benicia Bridge and 150 m landward (east) of Mallard Island. These data are provided here in the manufacturer's ASCII format, as described in README.txt file associated with this data release.

Field observations of water and suspended-sediment fluxes were conducted at Benicia Bridge and Mallard Island during the 2019 water year wet season to capture suspended-sediment flux during elevated Sacramento–San Joaquin Delta discharge. Measurements occurred on two occasions: 1) 26th of February 2019 at Benicia Bridge and Mallard Island, following a storm event that increased delta outflow and 2) 10th April 2019 at Benicia Bridge, following peak delta outflow for the 2019 water year. On both occasions, flux of water and suspended sediment were estimated using data from a boat-mounted acoustic Doppler current profiler. This instrument provided high-resolution velocity and acoustic backscatter (ABS) data at a cross-section (“transect”) near the estuary-ocean boundary, approximately 1.5 km seaward (southwest) of Benicia Bridge and 150 m landward (east) of Mallard Island. These data are provided here in the manufacturer's ASCII format, as described in README.txt file associated with this data release.

Field measurements of flow velocity and discharge were acquired from the Middle Channel of the St. Clair River delta, Michigan, May 2-4, 2022. The velocity and discharge measurements included in this data release were obtained using a SonTek M9 acoustic Doppler current profiler (ADCP) deployed from a boat with an outboard motor. River Surveyor Live software version 4.1. was used to acquire and store the ADCP files. The ADCP data were collected along 8 transects spanning the width of the Middle Channel; two passes across the channel were made at each transect. This data release provides text files derived from the raw ADCP data files using the Velocity Mapping Toolbox (VMT) software version 4.09. Text files with projected spatial coordinates, velocity components, and depth-averaged velocity magnitudes, were generated. The spatial location of each measurement was obtained using a Trimble 540AP Global Navigation Satellite System (GNSS) receiver and real time network (RTN). The map projection and datum for these data are UTM Zone 17 N and NAD 83, respectively. This data release consists of a series comma-delimited (*.csv) text files. Each file consists of five columns: UTM_Easting, in meters, UTM_Northing, in meters, EastDAV, in m/s, and NorthDAV, in m/s and Velocity magnitude, in m/s. The first two columns are the easting and northing spatial coordinates, respectively. The third and fourth columns are the easting and northing components of the depth-averaged velocity magnitude in meters per second. The fifth column is the velocity magnitude in meters per second. An additional text file is included that provides the average discharge at the cross-section or mean of the two ADCP passes made at each transect. This field-based data set was used to determine the discharge of the Middle Channel of the St. Clair River delta and to provide depth-averaged velocities to inform hydraulic models.

Field measurements of flow velocity and discharge were acquired from the Middle Channel of the St. Clair River delta, Michigan, May 2-4, 2022. The velocity and discharge measurements included in this data release were obtained using a SonTek M9 acoustic Doppler current profiler (ADCP) deployed from a boat with an outboard motor. River Surveyor Live software version 4.1. was used to acquire and store the ADCP files. The ADCP data were collected along 8 transects spanning the width of the Middle Channel; two passes across the channel were made at each transect. This data release provides text files derived from the raw ADCP data files using the Velocity Mapping Toolbox (VMT) software version 4.09. Text files with projected spatial coordinates, velocity components, and depth-averaged velocity magnitudes, were generated. The spatial location of each measurement was obtained using a Trimble 540AP Global Navigation Satellite System (GNSS) receiver and real time network (RTN). The map projection and datum for these data are UTM Zone 17 N and NAD 83, respectively. This data release consists of a series comma-delimited (*.csv) text files. Each file consists of five columns: UTM_Easting, in meters, UTM_Northing, in meters, EastDAV, in m/s, and NorthDAV, in m/s and Velocity magnitude, in m/s. The first two columns are the easting and northing spatial coordinates, respectively. The third and fourth columns are the easting and northing components of the depth-averaged velocity magnitude in meters per second. The fifth column is the velocity magnitude in meters per second. An additional text file is included that provides the average discharge at the cross-section or mean of the two ADCP passes made at each transect. This field-based data set was used to determine the discharge of the Middle Channel of the St. Clair River delta and to provide depth-averaged velocities to inform hydraulic models.

This dataset contains a series of processed acoustic Doppler current profiler (ADCP) measurements collected by boat on the Missouri River at Searcys Bend near Columbia, Missouri on May 5, 2021, during a dye release experiment at the site. The data presented here have been processed with the Velocity Mapping Toolbox (VMT) and combined into a single shapefile using ArcGIS. The dataset was collected to validate a multidimensional hydrodynamic model.

This dataset contains a series of processed acoustic Doppler current profiler (ADCP) measurements collected by boat on the Missouri River at Searcys Bend near Columbia, Missouri on May 5, 2021, during a dye release experiment at the site. The data presented here have been processed with the Velocity Mapping Toolbox (VMT) and combined into a single shapefile using ArcGIS. The dataset was collected to validate a multidimensional hydrodynamic model.

This dataset contains a series of processed acoustic Doppler current profiler (ADCP) measurements collected by boat on the Upper Missouri River near Wolf Point, Montana between 2018 and 2019. The data presented here have been processed with the Velocity Mapping Toolbox (VMT) and combined into a single shapefile using ArcGIS. The dataset was collected to validate a multidimensional hydrodynamic model.

This dataset records results from a bottom-deployed upward-looking Acoustic Doppler Current Profiler (ADCP, 600 kHz Workhorse Monitor, Teledyne RD Instruments, Poway, California) deployed during the summer of 2019 (late June until early August) near Hammond Bay, Lake Huron (45.5948 degrees north, -84.1542 degrees east). Data were collected in support of nearby Cladophora and benthic algal assessments, as well as to validate hydrodynamic modeling.

This data release supports the following publication: Hittle, Elizabeth, 2017, Longshore Water-Current Velocity and the Potential for Transport of Contaminants: A Pilot Study in Lake Erie from Walnut Creek to Presque Isle State Park Beaches, Erie, Pennsylvania, June and August 2015: U.S. Geological Survey Open-File Report 2016–1206 126 p., https://doi.org/10.3133/ofr20161206. This dataset is Velocity Mapping Toolbox (VMT) processed Acoustic Doppler Current Profiler (ADCP) data. The data was processed with a horizontal averaging of 10 grid nodes (Parsons, D.R., Jackson, P.R., Czuba, J.A., Oberg, K.A., Mueller, D.S., Rhoads, B., Best, J.L., Johnson, K.K., Engel, F., and Riley, J. (2013) Velocity Mapping Toolbox (VMT): a processing and visualization suite for moving-vessel ADCP measurements, Earth Surface Processes and Landforms. doi: 10.1002/esp.3367). Data was collected on June 25, the depth range is surface to the lake bottom.