{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Frank L. Engel", "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:\n<ul>\n<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>\n<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>\n</ul>\nAll uncertainties are reported as 2-sigma (95 percent) confidence intervals.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P13RF37Q", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.6a2c6e9d1ba49b10d1b545a7.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "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": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "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"}