{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Frank L. Engel", "hasEmail": "mailto:fengel@usgs.gov"}, "description": "This child item contains Python scripts used to extract data from IVyTools project files and to generate figures for the associated publication. The following scripts are included:\n<ul>\n<li><strong>extract_ivy_uncertainty.py:</strong> Extracts International Organization for Standardization (ISO) 748 and Interpolated Variance Estimator (IVE) uncertainty component values from IVyTools .ivy project files (ZIP archives containing project_data.json). Produces the extracted_ivy_data_v1.4.0.0.csv file in the Uncertainty Analysis child item.</li>\n<li><strong>IVyTools_uncert_plots.py:</strong> Generates the uncertainty contribution figure (figure-6.png) from the extracted CSV data. Produces an eight-panel bar chart showing fractional contributions of each uncertainty component to total discharge variance for all VGC2020 sites.</li>\n</ul>\n<strong>Software Requirements:</strong> To execute these scripts, users will need Python 3.9 or later with the following packages: matplotlib, numpy, pandas (for the plotting script). The extraction script uses only Python standard library modules (zipfile, json, csv, os, math).", "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.69399e32d4be026e406f2582.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_69399e32d4be026e406f2582", "keyword": ["IVyTools", "Python", "USGS:69399e32d4be026e406f2582", "data extraction", "remote sensing", "reproducibility", "software", "uncertainty analysis"], "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: Ancillary Scripts"}