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Colorado River at Windy Gap near Granby, CO - 2021/07/27 Water Surface Velocity Map Using Particle Image Velocimetry

Dates

Publication Date
Time Period
2021-07-27

Citation

DeBenedetto, G.P., Adams, J.D., and Burgess, M.A., 2022, Colorado River at Windy Gap near Granby, CO - 2021/07/27 Water Surface Velocity Map Using Particle Image Velocimetry: U.S. Geological Survey data release, https://doi.org/10.5066/P9E7UTB8.

Summary

The dataset consists of a shapefile of measurements of surface velocity magnitude and direction at the Colorado River at Windy Gap near Granby, CO, on July 27, 2021. The dataset contains approximately 1 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). Total time to capture all videos was one hour and ten minutes, 11:05am to 12:15pm local time, and all frames (except frame 1, see Process Steps below) from all videos were used. Additional attributes, including divergence, curl, shear, and strain, were calculated from the surface velocity measurements and are included in the [...]

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Attached Files

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CoWindyGap_Vectors_UTM13_NAD83.zip 5.83 MB application/zip

Purpose

The data were collected as a collaboration with the USGS's Colorado Water Science Center, the National Unmanned Aircraft Systems Project Office and the Arizona Water Science Center. This aerial data collection was coincidental to in-stream near-surface velocity measurements for accuracy analysis. Data collection and processing techniques were built upon methodology being researched by the USGS Surface Velocity Workgroup and the USGS Hydrologic Remote Sensing Branch.

Map

Communities

  • Reach-Scale Monitoring Network
  • USGS Data Release Products

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Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9E7UTB8

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