{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Scott D Hamshaw", "hasEmail": "mailto:shamshaw@usgs.gov"}, "description": "This metadata record describes historical event-scale flood type classifications and causal attribution data for the FEMA-funded joint U.S. Geological Survey and U.S. Army Corps of Engineers Mixed Populations Flood Frequency Project. The data listed here include domain-expert manual classifications of annual, instantaneous historical flood peaks based on causal mechanisms determined using multiple lines of evidence. The dataset spans six basins (Delaware River, Trinity River, Red River of the North, Iowa River, Puget Sound, and Upper Colorado River) and a total of eighteen gaged watersheds spread across the six basins. Manually determined flood type classifications (both flood type and antecedent condition classifications) as well as associated causal storm types are provided for the entire annual, instantaneous peak flow record through water year 2022. Comma separated values (csv) files of manual classifications are grouped by basin. Additionally, csv files of variables used as indicators of a potential causal mechanism (i.e., basin averages and elevation band spatial averages of existing published meteorological and land surface datasets) are included in the data release.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P13G2ZJW", "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.687a985cd4be020457c7b253.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_687a985cd4be020457c7b253", "keyword": ["Delaware River", "Iowa River", "Puget Sound", "Red River of the North", "Trinity River", "USGS:687a985cd4be020457c7b253", "United States", "Upper Colorado River", "climatologyMeteorologyAtmosphere", "conterminous United States", "datasets", "flood type, causal mechanism, storm type, historical flood", "floods", "hydrology", "meteorology", "streamflow"], "modified": "2026-03-26T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-123.5238, 30.0174, -74.3577, 49.4771", "theme": ["geospatial"], "title": "Manual Flood Type Classifications for Select U.S. River Basins"}