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Colorado River at Windy Gap near Granby, CO - 2022/06/13 Water Surface Velocity Map Using Particle Image Velocimetry

The dataset consists of a .csv and shapefile of measurements of surface velocity magnitude and direction at the Colorado River at Windy Gap near Granby, CO, on June 13, 2022. The dataset contains approximately 2 km of river length. The surface velocity measurements were made by applying Large-Scale Particle Image Velocimetry (LSPIV) techniques, using overlapping videos collected by small Unmanned Aircraft Systems (sUAS). Additional attributes, including divergence, curl, shear, and strain, were calculated from the surface velocity measurements and are included in the dataset. This data is ideal for instantaneous discharge, shear, strain, and divergence, but less so for eddies and mean reach values. This is because the frame rate of 30-frames-per-second more accurately profiles and averages instantaneous values seen during the capture interval as opposed to the stability of an eddy or representative mean values of a longer capture interval.

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Author(s) Geoffrey P. DeBenedetto, Joseph A Affinati orcid, Michael S Kohn orcid
Publication Date 2023-06-07
Beginning Date of Data 2022-06-13
Ending Date of Data 2022-06-13
Data Contact
Geoffrey DeBenedetto
DOI https://doi.org/10.5066/P9PYVV8B
Citation DeBenedetto, G.P., Affinati, J.A., and Kohn, M.S., 2023, Colorado River at Windy Gap near Granby, CO - 2022/06/13 Water Surface Velocity Map Using Particle Image Velocimetry: U.S. Geological Survey data release, https://doi.org/10.5066/P9PYVV8B.
Metadata Contact
Geoffrey DeBenedetto
Metadata Date 2023-06-07
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Citations of these data No citations of these data are known at this time.
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License http://www.usa.gov/publicdomain/label/1.0/
Harvest Source: ScienceBase
Harvest Date: 2024-01-09T07:19:27.349Z