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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: December 19, 2025 | 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.

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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 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

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