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IVyTools discharge and uncertainty results for eight benchmark image velocimetry videos: Summary Tables
This child item contains summary comparison tables presenting IVyTools discharge results alongside Video Globe Challenge 2020 (VGC2020) reference values. Two CSV files are included:
<ul>
<li><strong>IVyTools_VGC2020_discharge_summary.csv:</strong> Corresponds to Table 2 in Engel and others (2026). Contains the IVyTools discharge result, reference discharge, uncertainty estimates (International Organization for Standardization [ISO] 748:2007 and Interpolated Variance Estimator [IVE] methods), velocity coefficients, and percent deviation from reference for each of the eight VGC2020 sites.</li>
<li><strong>IVyTools_VGC2020_alpha_sensitivity.csv:</strong> Corresponds to Table 3 in Engel and others (2026). Contains the adjusted discharge (Q_adj) recomputed using the VGC2020 reference alpha values, and the resulting percent deviation from reference discharge.</li>
</ul>
All uncertainties are reported as 2-sigma (95 percent) confidence intervals.
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Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Frank L. Engel", "@type": "vcard:Contact", "hasEmail": "mailto:fengel@usgs.gov" } |
| description | This child item contains summary comparison tables presenting IVyTools discharge results alongside Video Globe Challenge 2020 (VGC2020) reference values. Two CSV files are included: <ul> <li><strong>IVyTools_VGC2020_discharge_summary.csv:</strong> Corresponds to Table 2 in Engel and others (2026). Contains the IVyTools discharge result, reference discharge, uncertainty estimates (International Organization for Standardization [ISO] 748:2007 and Interpolated Variance Estimator [IVE] methods), velocity coefficients, and percent deviation from reference for each of the eight VGC2020 sites.</li> <li><strong>IVyTools_VGC2020_alpha_sensitivity.csv:</strong> Corresponds to Table 3 in Engel and others (2026). Contains the adjusted discharge (Q_adj) recomputed using the VGC2020 reference alpha values, and the resulting percent deviation from reference discharge.</li> </ul> All uncertainties are reported as 2-sigma (95 percent) confidence intervals. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P13RF37Q", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.6a2c6e9d1ba49b10d1b545a7.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_6a2c6e9d1ba49b10d1b545a7 |
| keyword |
[ "IVyTools", "USGS:6a2c6e9d1ba49b10d1b545a7", "discharge", "discharge comparison", "image velocimetry validation", "streamflow", "uncertainty", "velocity coefficient" ] |
| modified | 2026-08-19T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -180.0000, -90.0000, 180.0000, 90.0000 |
| theme |
[ "geospatial" ] |
| title | IVyTools discharge and uncertainty results for eight benchmark image velocimetry videos: Summary Tables |
