{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Michelle M Irizarry-Ortiz", "hasEmail": "mailto:mirizarry-ortiz@usgs.gov"}, "description": "The U.S. Geological Survey (USGS) and the U.S. Army Corps of Engineers (USACE) are collaborating with the U.S. Federal Emergency Management Agency (FEMA) on improving flood-frequency analysis methods to account for mixed populations arising from different flood causal mechanisms. Precipitation data at different timescales are widely used in flood-typing studies. Various gridded precipitation datasets were validated by comparison against station observations to support flood-typing over six pilot regions in the contiguous U.S. (CONUS) where flood-typing approaches will be initially tested. The six pilot regions are (1) the Delaware River, (2) the Iowa River, (3) Puget Sound, (4) the Red River of the North, (5) the Trinity River, and (6) the Upper Colorado River. The datasets were validated by comparison against gage data from the NOAA Global Historical Climatology Network daily (GHCNd) for the periods 1981-2013 and 1998-2013. \nA Microsoft Excel workbook is provided, which tabulates normalized Taylor diagram statistics for multi-day extreme precipitation in each pilot region for the two periods. Extreme precipitation of 1-, 2-, 3-, 5-, 7-, 10-, and 14-day duration were evaluated. The statistics evaluated include the Pearson correlation coefficient, the standard deviation ratio, the centered root-mean-square difference, the percent bias, and the Kling-Gupta efficiency (KGE) metric. The gridded precipitation datasets include: (1) 20th Century Reanalysis Version 3 (20CRV3) dataset, (2) the Analysis of Record for Calibration (AORC) dataset, (3) the four-kilometer long-term (40-year) regional hydroclimate reanalysis over the conterminous United States dataset (CONUS404), (4) a bias-adjusted version of CONUS404 (CONUS404BA) which uses the Daymet version 3 dataset for bias adjustment, (5) the European Centre for Medium-Range Weather Forecasts Atmospheric Reanalysis - Fifth Generation dataset (ERA5), (6) a downscaled version of ERA5 precipitation (ERA5-Land), (7) the gridded precipitation dataset by Livneh et al. (Livneh), (8) a version of the Livneh dataset that does not split reported 24-hour precipitation between subsequent days (Livneh-unsplit), (9) the Parameter-elevation Regression on Independent Slopes Model (PRISM) dataset, and (10) the Stage IV dataset. Stage IV was not included in the 1981\u20132013 analysis since it is only available since 1997.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P13VA3HV", "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.6752157bd34e5c4500cf4363.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_6752157bd34e5c4500cf4363", "keyword": ["Delaware River", "Iowa River", "Puget Sound", "Red River of the North", "Trinity River", "USGS:6752157bd34e5c4500cf4363", "Upper Colorado", "Upper Colorado River", "atmospheric and climatic processes", "climatologyMeteorologyAtmosphere", "extremes", "precipitation", "precipitation (atmospheric)", "precipitation extremes", "statistical analysis", "storms"], "modified": "2025-09-29T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-125.0000, 24.0000, -65.0000, 50.0000", "theme": ["geospatial"], "title": "Spreadsheet of normalized Taylor diagram statistics for multi-day extreme precipitation in six regions in the contiguous U.S. (Extreme_precipitation_statistics.xlsx)"}