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    • Data for the U.S. Geological Survey Precipitation Chemistry Quality Assurance Project for the National Atmospheric Deposition Program, 1978–2017

    Metadata Updated: October 29, 2023

    The USGS Precipitation Chemistry Quality Assurance Project (PCQA) operates QA programs to challenge and test the National Atmospheric Deposition Program (NADP) data-collection processes for both the National Trends Network (NTN) and Mercury Deposition Network (MDN). PCQA data are available in separate tables for each quality-assurance program: (1) Intersite comparison for field pH and specific conductance, (2) Blind Audit for NTN, (3) Sample Handling Evaluation for NTN, (4) Interlaboratory-comparison for NTN, (5) Interlaboratory-comparison program for MDN, (6) Field-Audit program for NTN, (7) System-Blank program for MDN, (8) MDN Blind Audit program, and (9) Colocated Sampler program for NTN. Measured parameters include precipitation depth, pH, specific conductance, and ion concentrations for calcium, magnesium, sodium, potassium, ammoium, chloride, bromide, nitrate, sulfate, phosphate, and total mercury.

    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.

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    Dates

    Metadata Created Date June 1, 2023
    Metadata Updated Date October 29, 2023

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 1, 2023
    Metadata Updated Date October 29, 2023
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/6df3bcc7cade7047117337cbb0c28e91
    Identifier USGS:5b0dbb48e4b0c39c934b081c
    Data Last Modified 20201211
    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://datainventory.doi.gov/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 6b911ffc-1817-4da7-903a-3bc19d4c4e27
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -157.87,18.32,-58.56,67.0891
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash f244ce7a648204702cb52821a74bd733b94076b42bce9f49f569f7ac4f94c4cf
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -157.87, 18.32, -157.87, 67.0891, -58.56, 67.0891, -58.56, 18.32, -157.87, 18.32}

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