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    • North Carolina (NC) Stochastic Empirical Loading and Dilution Model (SELDM) streamflow statistics for 266 streamgages across North Carolina

    Metadata Updated: January 20, 2026

    The purpose of this USGS data release is to publish NC SELDM streamflow statistics and summary statistics of physical and chemical data in support of the information provided in the above-referenced report. This data release consists of two data sets, "NC SELDM streamflow statistics..." and "NC SELDM summary statistics for physical and chemical data...". The tables that are uploaded for the "NC SELDM streamflow statistics for 266 streamgages across North Carolina" sub-section are primarily the support files for the StreamStatsDB update that was completed when the report was approved. These files were generated using the GNWISQ and QSTATS computer programs developed and described by Granato (2009, appendices 1 and 4). This is discussed near the end of the "Prestorm streamflow statistics" section in the above-referenced report. A large table of selected site attributes and StreamStats basin characteristics that were compiled for the 266 streamgages is also provided as a part of this data release. A ReadMe file is also included in the sub-section of the data release. The tables that are uploaded for the "NC SELDM summary statistics for physical and chemical data at NC highway-runoff and bridge-deck sites" sub-section of the data release support the statewide medians table (Table 7) discussed within the "Simulating highway-runoff quality" section in the above-referenced report. This is a .csv file for each of the 11 constituents referenced in Table 11. Descriptions of the data fields (or columns) in the .csv tables are provided at the top of each .csv file. A ReadMe file is also included in the sub-section of the data release.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date January 11, 2026
    Metadata Updated Date January 20, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 11, 2026
    Metadata Updated Date January 20, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_5af1ed4fe4b0da30c1b0c7f1
    Data Last Modified 2020-08-27T00:00:00Z
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Datagov Dedupe Retained 20260120063953
    Harvest Object Id 1f5abd85-8766-46f8-936f-1fdc04a39102
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": -84.3219, 33.8398, -84.3219, 36.5881, -75.4600, 36.5881, -75.4600, 33.8398, -84.3219, 33.8398}
    Source Datajson Identifier True
    Source Hash a25b7fdc9e3996fd60fa0edd92df6212e734d8d9bcf7e046788bf15b39331920
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -84.3219, 33.8398, -84.3219, 36.5881, -75.4600, 36.5881, -75.4600, 33.8398, -84.3219, 33.8398}

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