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    • Chesapeake Bay Nontidal Network 1985-2018: WRTDS input data

    Metadata Updated: January 7, 2026

    Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2018. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the NTN watersheds. The files containing all inputs required to run WRTDS for all applicable NTN monitoring stations are provided in the "Attached Files" section.

    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 7, 2026
    Metadata Updated Date January 7, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 7, 2026
    Metadata Updated Date January 7, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_5e25e210e4b014c85306f7b1
    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
    Harvest Object Id 4dca9261-8222-4a88-9484-06d08c386681
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -79.167480469182, 36.208470061656, -74.904785156852, 42.714410712674
    Source Datajson Identifier True
    Source Hash 35172911312741821aa943db32a85c01b3b7f9024154300e5e023c65ddf42c2e
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -79.167480469182, 36.208470061656, -79.167480469182, 42.714410712674, -74.904785156852, 42.714410712674, -74.904785156852, 36.208470061656, -79.167480469182, 36.208470061656}

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