Colorado River at Windy Gap near Granby, CO - 2022/06/13 Water Surface Velocity Map Using Particle Image Velocimetry
Dates
Publication Date
2023-06-07
Time Period
2022-06-13
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.
Summary
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 [...]
Summary
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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Colorado@WindyGap_20220613.xml Original FGDC Metadata
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48.05 KB
application/fgdc+xml
UCOL_WindyGap_20220613_Vectors.zip
7.65 MB
application/zip
Purpose
The data were collected as a collaboration with United States Geological Survey (USGS) Next Generation Water Observing Systems Research and Development, the USGS Colorado Water Science Center, the USGS National Uncrewed Systems Office and the USGS Arizona Water Science Center. Data collection and processing techniques were built upon methodology being researched by the USGS Surface Velocity Workgroup and the USGS Hydrologic Remote Sensing Branch.
