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Archive of NOAA Continuously Operating Reference Stations (CORS) Network (NCN)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: April 12, 2026 | Last Modified: 1994-04-22T00:00:00.000+00:00
The National Geodetic Survey's (NGS) NOAA Continuously Operating Reference Stations (CORS) Network (NCN) provides Global Navigation Satellite System (GNSS) data consisting of carrier phase and code range measurements in support of three dimensional positioning, meteorology, space weather, and geophysical applications throughout the United States, its territories, and a few foreign countries. Surveyors, GIS users, engineers, scientists, and the public at large that collect GPS data can use CORS data to improve the precision of their positions. CORS enhanced post-processed coordinates approach a few centimeters relative to the National Spatial Reference System (NSRS), both horizontally and vertically. The CORS network is a multi-purpose cooperative endeavor involving government, academic, and private organizations. The sites are independently owned and operated. Each agency shares their data with NGS, and NGS in turn analyzes and distributes the data free of charge.

Resources

7 resources available

  • Metadata Landing Page

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  • CLASS Data Search and Order

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  • National Geodectic Survey - Continuously Operating Reference Stations (CORS)

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  • Reference frames are updated periodically according to the policy.

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  • GCMD Keyword Forum Page

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  • Getty Thesaurus of Geographic Names Online Page

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  • NCEI Contact Information

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EARTH SCIENCE > Solid Earth > Geodetics EARTH SCIENCE > Solid Earth > Geodetics > Coordinate Reference Systems EARTH SCIENCE > Solid Earth > Geodetics > Coordinate Reference Systems > Country/Regional Coordinate Reference System EARTH SCIENCE > Solid Earth > Geodetics > Coordinate Reference Systems > Global Coordinate Reference System EARTH SCIENCE > Solid Earth > Geodetics > Ellipsoid Characteristics EARTH SCIENCE > Solid Earth > Geodetics > Geoid Characteristics EARTH SCIENCE > Solid Earth > Geodetics > Control Surveys EARTH SCIENCE > Solid Earth > Geodetics > Crustal Motion

Complete Metadata
@type dcat:Dataset
accessLevel non-public
accrualPeriodicity R/P1D
contactPoint 
                                            {
  "fn": "Not provided - Contact data.gov",
  "hasEmail": "mailto:datagovsupport@gsa.gov"
}
describedByType application/octet-steam
description The National Geodetic Survey's (NGS) NOAA Continuously Operating Reference Stations (CORS) Network (NCN) provides Global Navigation Satellite System (GNSS) data consisting of carrier phase and code range measurements in support of three dimensional positioning, meteorology, space weather, and geophysical applications throughout the United States, its territories, and a few foreign countries. Surveyors, GIS users, engineers, scientists, and the public at large that collect GPS data can use CORS data to improve the precision of their positions. CORS enhanced post-processed coordinates approach a few centimeters relative to the National Spatial Reference System (NSRS), both horizontally and vertically. The CORS network is a multi-purpose cooperative endeavor involving government, academic, and private organizations. The sites are independently owned and operated. Each agency shares their data with NGS, and NGS in turn analyzes and distributes the data free of charge.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "Metadata Landing Page",
    "accessURL": "https://doi.org/10.25921/wc4r-ee36",
    "mediaType": "text/html",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "CLASS Data Search and Order",
    "accessURL": "https://www.class.noaa.gov/saa/products/search?sub_id=0&datatype_family=CORS",
    "mediaType": "text/html",
    "description": "Search the CORS data archive and submit an order for the dataset via the interface.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "National Geodectic Survey - Continuously Operating Reference Stations (CORS)",
    "accessURL": "https://www.ngs.noaa.gov/CORS/",
    "mediaType": "text/html",
    "description": "Home page for CORS main facility in Silver Spring, MD",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "format": "PDF",
    "mediaType": "application/pdf",
    "description": "Reference frames are updated periodically according to the policy.",
    "downloadURL": "http://geodesy.noaa.gov/INFO/Policy/CORS-coordinate-policyv4_20Dec2011.pdf",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GCMD Keyword Forum Page",
    "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
    "mediaType": "text/html",
    "description": "Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Getty Thesaurus of Geographic Names Online Page",
    "accessURL": "http://www.getty.edu/research/tools/vocabularies/tgn/index.html",
    "mediaType": "text/html",
    "description": "This page provides an interface to search the Getty Thesaurus of Geographic Names.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Contact Information",
    "accessURL": "https://www.ncei.noaa.gov/contact",
    "mediaType": "text/html",
    "description": "Information for contacts at NCEI.",
    "describedByType": "application/octet-stream"
  }
]
identifier https://data.noaa.gov/waf/NOAA/NESDIS/NGDC/STP/Terrestrial/iso/xml/G10019.xml
issued 1994-04-22T00:00:00.000+00:00
keyword 
                                            [
  "EARTH SCIENCE > Solid Earth > Geodetics",
  "EARTH SCIENCE > Solid Earth > Geodetics > Coordinate Reference Systems",
  "EARTH SCIENCE > Solid Earth > Geodetics > Coordinate Reference Systems > Country/Regional Coordinate Reference System",
  "EARTH SCIENCE > Solid Earth > Geodetics > Coordinate Reference Systems > Global Coordinate Reference System",
  "EARTH SCIENCE > Solid Earth > Geodetics > Ellipsoid Characteristics",
  "EARTH SCIENCE > Solid Earth > Geodetics > Geoid Characteristics",
  "EARTH SCIENCE > Solid Earth > Geodetics > Control Surveys",
  "EARTH SCIENCE > Solid Earth > Geodetics > Crustal Motion",
  "EARTH SCIENCE > Solid Earth > Geomorphic Landforms/Processes",
  "EARTH SCIENCE > Solid Earth > Gravity/Gravitational Field",
  "NOAA > National Geodetic Survey (NGS) > Continuously Operating Reference Station (CORS)",
  "GPS > Global Positioning System Satellites",
  "NAVSTAR > NAVSTAR Global Positioning System",
  "GLONASS > GLObalnaya NAvigatsionnaya Sputnikovaya Sistema",
  "GNSS > Global Navigation Satellite System",
  "Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS > GPS Receivers",
  "Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS > GNSS Receivers",
  "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
  "DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce",
  "Geodetic/Global Positioning",
  "United States",
  "CORS",
  "CORDLYHLOG",
  "CORDLYLOG",
  "CORDLYMET",
  "CCORDLYNAV",
  "CORDLYOBS",
  "CORGNSS",
  "CORSRAW",
  "gov.noaa.class:CORS"
]
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 1994-04-22T00:00:00.000+00:00
publisher 
                                            {
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
                                            [
  "https://www.ngs.noaa.gov/CORS/",
  "http://geodesy.noaa.gov/INFO/Policy/CORS-coordinate-policyv4_20Dec2011.pdf"
]
rights otherRestrictions
spatial 180.0,-90.0,-180.0,90.0
temporal 1994-02-01T00:00:00+00:00/1994-02-01T00:00:00+00:00
title Archive of NOAA Continuously Operating Reference Stations (CORS) Network (NCN)

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