This dataset includes the downstream water-surface slope and Manning's roughness (Manning's n) calibration equations for the Lazy Day (LD) reach on the Big Piney River near St. Robert, Missouri, based on discharge and water surface elevation data collected between November 19, 2020 and August 25, 2021. Calibration was performed to produce optimal values of downstream water-surface slope and Manning's n for a one-dimensional hydraulic model of the LD reach.

This dataset includes the downstream water-surface slope and Manning's roughness (Manning's n) calibration equations for the Lazy Day (LD) reach on the Big Piney River near St. Robert, Missouri, based on discharge and water surface elevation data collected between November 19, 2020 and August 25, 2021. Calibration was performed to produce optimal values of downstream water-surface slope and Manning's n for a one-dimensional hydraulic model of the LD reach.

This dataset includes the discharge values and simulation input conditions for 15 simulation discharges at the Lazy Day (LD) reach on the Big Piney River near St. Robert, Missouri. Simulations were run for environmental DNA sample collection dates between March 13, 2020 and May 12, 2022. Simulation results were used as input for environmental DNA transport models.

This dataset includes 5 sets of velocity measurements and water-surface elevation measurements collected at the Lazy Day (LD) reach on the Big Piney River near St. Robert, Missouri between November 19, 2020 and August 25, 2021. Velocity data were collected by USGS staff from the Columbia Environmental Research Center at different locations in the study reach using an acoustic Doppler current profiler (ADCP) and Real Time Kinematic Global Navigation Satellite Systems (RTK GNSS) positioning. Data were used to evaluate the calibration performance of a one-dimensional hydraulic model of the LD reach. Velocity data are provided as mean velocity at distances along a stream centerline that corresponds to the one-dimensional hydraulic modeling reach in HEC-RAS. Water-surface elevation data were collected by USGS staff from the Columbia Environmental Research Center using RTK GPS for the length of the study reach. Data were used to calibrate a one-dimensional hydraulic model of the LD reach. Water surface elevations are provided at distances along a stream centerline that corresponds to the one-dimensional hydraulic modeling reach in HEC-RAS.

This dataset includes the one-dimensional HEC-RAS model calibration files and simulation input and output files for the Lazy Day (LD) reach on the Big Piney River near St. Robert, Missouri. Simulation results were used as input for environmental DNA transport models.

This dataset includes the one-dimensional HEC-RAS model simulation input and output files for 15 simulation discharges at the Lazy Day (LD) reach on the Big Piney River near St. Robert, Missouri. The Lazy Day model has 94 cross sections and spans approximately 2,327 m between the most upstream and most downstream cross sections. Simulations were run for environmental DNA sample collection dates between March 13, 2020 and May 12, 2022. Simulation results were used as input for environmental DNA transport models.

This dataset includes the discharge values and calibration results for four discharge measurements collected at the Wallens Bend (WB) reach on the Clinch River near Kyles Ford, Tennessee between April 14, 2021 and September 8, 2021. Discharge measurements were collected by USGS staff from the Columbia Environmental Research Center using an acoustic Doppler current profiler (ADCP) and Real Time Kinematic Global Navigation Satellite Systems (RTK GNSS) positioning. Calibration was performed to produce optimal values of downstream water-surface slope and Manning's roughness (Manning's n) for a one-dimensional hydraulic model of the WB reach.

This dataset includes the one-dimensional HEC-RAS water quality model simulation input and output files for two simulation discharges at the Lazy Day (LD) reach on the Big Piney River near St. Robert, Missouri. Simulations were run for environmental DNA (eDNA) sample collection dates on July 07, 2020 and July 23, 2021. For each eDNA collection date, the transport of freshwater mussel eDNA from Cumberlandia monodonta was simulated by specifying eDNA as an arbitrary constituent in the HEC-RAS water quality module and assigning a first order rate of decay. To account for the variation of the eDNA field samples at the upstream boundary condition, as well as the laboratory derived decay constants, we ran three model simulations for each eDNA collection date: a) the mean eDNA concentration at the upstream boundary with the mean decay constant (k), b) the mean eDNA concentration at the upstream boundary plus 1SE with the mean k minus 1SE, and c) the mean eDNA concentration at the upstream boundary minus 1SE with the mean k plus 1SE. Field collected eDNA concentrations were used as an upstream boundary condition.

This data release contains river bed surface grain size measurements, water-surface elevation measurements, and digital elevation models (DEMs) for select reaches of the Big River, Missouri. These data were collected in support of research assessing the hydraulic conditions of freshwater mussel habitat in the Big River. The individual metadata associated with each data type describe the process steps, data inputs and sources, and the locations where the data were collected.

This dataset includes depth and position measurements to estimate the cross-sectional geometry at sites in small streams throughout the United States.