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Metadata Identifier: gov.noaa.ngdc.stp.terrestrial:G10019

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 NOAA/NGS Continuously Operating Reference Station (CORS) The National Geodetic Survey (NGS), an office of NOAA's National Ocean Service, manages a network of Continuously Operating Reference Stations (CORS) that provide 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, 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. As of March 2014, the CORS network contains almost 2000 stations, contributed by over 200 different organizations, and the network continues to expand. The National Geophysical Data Center (NGDC) is the designated archive of the NGS CORS data set. NGDC utilizes NOAA's Comprehensive Large Array-data Stewardship System (CLASS) infrastructure to archive and distribute CORS data.
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
1 Getty Thesaurus of Geographic Names Getty Thesaurus of Geographic Names
  • 2011-04-11
1 NASA/GCMD Instrument Keyword Thesaurus NASA/GCMD Instrument Keywords
    1 NASA/GCMD Platform Keyword Thesaurus NASA/GCMD Platform Keywords
      1 NASA/GCMD Project Keywords NASA/GCMD Project Keywords
        2 GCMD Science Keywords NASA/GCMD Science Keywords
          1 NGDA portfolio Themes
            1 NOAA archive: Continuously Operating Reference Stations (CORS)
            • 1994-02-01
            1 NOAA/NGS Continuously Operating Reference Station (CORS)
            • 1994-04-22
            NOAA/NGS CORS
            1 NOS Data Explorer Themes
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              CI_Series

              none found
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              CI_ResponsibleParty

              Count Component Individual Organization Position Email Role Linkage
              5 GCMD Valids custodian http://gcmd.nasa.gov/learn/keyword_list.html
              7 http://geodesy.noaa.gov/CORS/
              1 DOC/NOAA/CLASS > Comprehensive Large Array-data Stewardship System, NOAA, U.S. Department of Commerce info@class.noaa.gov distributor
              1 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce CORS Data Manager ngdc.cors@noaa.gov processor
              1 DOC/NOAA/NOS/NGS > National Geodetic Survey, NOS, NOAA, U.S. Department of Commerce ngs.cors@noaa.gov pointOfContact
              1 DOC/NOAA/NOS/NGS > National Geodetic Survey, NOS, NOAA, U.S. Department of Commerce ngs.cors@noaa.gov distributor
              2 DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce originator
              3 DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce User Services ngs.cors@noaa.gov processor
              1 Francine S. Coloma DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Francine.Coloma@noaa.gov pointOfContact
              1 Getty Research Institute TGN@getty.edu custodian http://www.getty.edu/research/tools/vocabularies/tgn/index.html
              5 GCMD User Support Office NASA GCMD User Support Office gcmduso@gcmd.gsfc.nasa.gov custodian http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
              1 Russian Federation Aerospace Defense Forces sponsor
              1 United States Air Force sponsor
              1 User Services DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce ngdc.info@noaa.gov publisher
              1 User Services DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce ngs.cors@noaa.gov processor
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              CI_OnlineResource

              Count Component Linkage Name Description Function
              2 ftp://alt.ngs.noaa.gov/cors/rinex/ Index of ftp://alt.ngs.noaa.gov/cors/rinex/ FTP site from CORS alternate facility in Boulder, CO download
              2 ftp://geodesy.noaa.gov/cors/rinex/ Index of ftp://geodesy.noaa.gov/cors/rinex/ FTP site from CORS main facility in Silver Spring, MD download
              2 http://alt.ngs.noaa.gov/CORS/ National Geodetic Survey - Continuously Operating Reference Stations (CORS) Home page for CORS alternate facility in Boulder, CO information
              5 http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso GCMD Feedback Form Have a Comment for the GCMD? information
              5 GCMD Keyword Page http://gcmd.nasa.gov/learn/keyword_list.html GCMD Keywords Page This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions. information
              1 http://geodesy.noaa.gov/CORS/ National Geodectic Survey - Continuously Operating Reference Stations (CORS) Home page for CORS main facility in Silver Spring, MD. Data is ingested in the at-sampling rate and available from NGS CORS online for 30 days. After 30 days, the CORS online data is decimated down to a 30-second sampling rate with the exception of the navigation files. information
              1 http://geodesy.noaa.gov/CORS/standard1.shtml NGS CORS facility in Silver Spring, MD: Standard Download utility CORS data search utility of daily files. Allows users to query by site id, state id, country id, data type or date. Data is ingested in the at-sampling rate and available from NGS CORS online for 30 days. After 30 days, the CORS online data is decimated down to a 30-second sampling rate with the exception of the navigation files. search
              1 http://geodesy.noaa.gov/UFCORS NGS CORS facility in Silver Spring, MD: User Friendly CORS utility This utility allows users to obtain a specific block of Global Positioning System ( GPS ) data for a continuously operating reference station (CORS) contained in the network of GPS sites managed by the National Geodetic Survey. Data is ingested in the at-sampling rate and available from NGS CORS online for 30 days. After 30 days, the CORS online data is decimated down to a 30-second sampling rate with the exception of the navigation files. search
              2 http://www.class.ngdc.noaa.gov/saa/products/welcome Comprehensive Large Array-data Stewardship System (CLASS) CORS data archived in CLASS, preserved with the at-sampling rate where available. information
              1 http://www.getty.edu/research/tools/vocabularies/tgn/index.html Getty Thesaurus of Geographic Names Online Page This page provides an interface to search the Getty Thesaurus of Geographic Names. information
              1 http://www.ngs.noaa.gov/CORS/ National Geodectic Survey - Continuously Operating Reference Stations (CORS) Home page for CORS main facility in Silver Spring, MD information
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              MD_Identifier or RS_Identifier

              Count Component Code
              1 Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS
              1 GLONASS > GLObalnaya NAvigatsionnaya Sputnikovaya Sistema
              1 GPS > Global Positioning System
              1 NOAA/NGS CORS
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              EX_Extent

              Bounding Box Temporal Extent
              Count Component Description West East North South Start End
              1 CORS data is collected throughout the United States, its territories, and a few foreign countries. -180.00 180.00 90.00 -90.00 1994-02-01
              1 1994-02-01
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              EX_GeographicBoundingBox

              Count Component West East North South
              1 -180.00 180.00 90.00 -90.00
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              EX_TemporalExtent

              Count Component Start End
              2 1994-02-01
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              MD_Format

              Count Component Name Version specification
              1 ASCII 2.11 Receiver Independent Exchange Format (RINEX)
              1 binary Not applicable Binary data from receiver manufacturer. Note that binary data from the Federal Aviation Administration's Wide Area Augmentation System (FAA WAAS) has been translated from the manufacturer binary by the FAA into the FAA binary format called National Satellite TestBed (NSTB).
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              MD_Medium

              none found
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              MD_Constraints

              Count Component Use Limitation
              1 Raw Data Disclaimer These data are considered raw and have not been subjected to the NOAA's quality control or quality assurance procedures. They are released for limited public use as preliminary data to be used only with appropriate caution. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
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              MD_ReferenceSystem

              none found
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              MD_GridSpatialRepresentation

              none found
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              MD_Georeferenceable or MI_Georeferenceable

              none found
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              MD_Georectified or MI_Georectified

              none found
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              MD_Dimension

              none found
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              MD_CoverageDescription or MI_CoverageDescription

              Count Component Attribute Description Content Type
              4
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              MD_Band or MI_Band

              Count Component Identifier Descriptor
              1 Latitude Real Latitude is measured from the equator, with positive values going north and negative values going south
              1 Longitude Real Longitude is measured from the Prime Meridian (which is the longitude that runs through Greenwich, England), with positive values going east and negative values going west
              1 Orthometric height (m) Real Distance along a plumb line, from the geoid to a point. The plumb line is a line regarded as directed exactly toward the earth's center of gravity. The geoid is the equipotential surface of the Earth's gravity field which best fits, in a least squares sense, global mean sea level.
              1 Ellipsoid or geodetic height (m) Real Distance along ellipsoid normal, from ellipsoid to a point. Due to rotation, the earth assumes the shape of a sphere that is flattened at the poles and bulging at the equator (an ellipse). Cartesian coordinates have their origin at the center of ellipsoid.
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              MI_RangeElementDescription

              none found
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              MD_AggregateInformation

              none found
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              LE_Source or LI_Source

              Count Component Title Date Description
              1 NOAA archive: Continuously Operating Reference Stations (CORS) 1994-02-01 Source Contribution: GNSS observational data in RINEX format and binary format, orbit data, and meteorological data (when available). Source Type: digital files via FTP
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              LE_ProcessStep or LI_ProcessStep

              Count Component DateTime Description
              1 1994-02-01T00:00:00 INGEST: NGS has automated daily routines that harvests daily observational files in either binary or RINEX format at the original sampling rate, the daily broadcast ephemeris files, orbit files, and any corresponding meteorological files. For the special case use of FAA and USCG streaming data that are used as input to NOAA models, the streaming feed is harvested to a binary, incrementally-built hourly file.
              1 1994-02-01T00:00:00 PROCESSING: Data ingested by NGS are processed into RINEX format and made available online in either an hourly or daily cadence. Aside from positioning, processing includes the insertion of NGS headers, quality checks, and the production of quality control files (teqc summary files). Other scheduled routines retrieve higher level orbit files as they are made available.
              1 1994-02-01T00:00:00 DISTRIBUTION: NGS makes hourly and daily files available online. For the special case of binary FAA and USCG data, NGS pushes these files to NGDC every 5 minutes. NGDC stages the data for ESRL and SWPC groups, who harvests the data at a predetermined sub-hourly period. The completed binary hourly file at NGDC is kept locally. At the end of the day, a daily tar file consisting of the hourly data are created and staged for archive.
              1 1994-02-01T00:00:00 RETENTION: NGS retains the data at the original at-sampling rate for 30 days. After 30 days, NGS decimates its online holdings to a 30-second sampling rate.
              1 1994-02-01T00:00:00 ARCHIVE: Prior to the 30-day mark, the RINEX at-sampling rate data is copied to NGDC. Aftter 30 days, NGDC then stages, archives, and distributes the CORS data via the CLASS infrasturcture. For the special use case, the daily binary files from 4 days ago are archived by NGDC to CLASS.
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              MI_Operation

              none found
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              MI_Platform

              Count Component Code Description
              1 GLONASS > GLObalnaya NAvigatsionnaya Sputnikovaya Sistema Russian Federation Aerospace Defense Forces developed, maintains, and operates the space and control segments of the GLONASS constellation.
              1 GPS > Global Positioning System The U.S. Air Force of the Department of Defense developed, maintains, and operates the space and control segments of the GPS constellation. Full Operational Capability was declared by NAVSTAR in April 1995.
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              MI_Instrument

              Count Component Code Type Description
              1 Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS Positioning/Navigation
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