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Metadata Identifier: gov.noaa.class:CORS

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 CLASS archive: Continuously Operating Reference Stations (CORS) NOAA CLASS archive: Continuously Operating Reference Stations (CORS) - The National Geodetic Survey (NGS), an office of NOAA's National Ocean Service (NOS), coordinates a network of geodetic-quality CORS stations that provide Global Positioning System (GPS) carrier phase and code range measurements in support of 3-dimensional positioning activities throughout the United States and its territories. The positions of these CORS sites help define the National Spatial Reference System (NSRS). NGS defines and manages the NSRS - the framework for latitude, longitude, height, scale, gravity, orientation and shoreline throughout the U.S. The NSRS provides a consistent national coordinate system to support mapping, charting, navigation, boundary determination, property delineation, infrastructure development, resource evaluation surveys, and scientific applications. The CORS system enables positional accuracies that approach a few centimeters relative to the NSRS, both horizontally and vertically.<br/><br/> While every effort is made to retain data in the original at-sampling rate, there may be cases where only the 30-second decimated rate data exists. Data availability (note latency from present day) for RINEX data is archive start date on 1994:112 and current date at 32-days before present; for raw GPS data (selected sites) is archive start date on 2004:193 and current date at 5 days before present.
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
2 CORS Coordinates
  • 2011-07-20
1 GCMD Platform Keywords
    1 NASA/GCMD Earth Science Keywords
      1 NASA/GCMD Location Keywords
        2 NOAA CLASS archive: Continuously Operating Reference Stations (CORS)
        • 2010-10
        1 None
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          CI_Series

          none found
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          CI_ResponsibleParty

          Count Component Individual Organization Position Email Role Linkage
          1 DOC/NOAA/CLASS > Comprehensive Large Array-data Stewardship System, NOAA, U.S. Department of Commerce publisher
          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 originator
          1 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (comp.) resourceProvider
          1 DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce originator http://www.ngs.noaa.gov/CORS/
          2 DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce resourceProvider http://alt.ngs.noaa.gov/CORS/
          1 Francine Coloma DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Francine.Coloma@noaa.gov pointOfContact
          1 Francine Coloma DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Francine.Coloma@noaa.gov custodian
          2 National Geodetic Survey - CORS publisher http://www.ngs.noaa.gov/CORS/coords.shtml
          1 Russian Federation owner
          1 United States Air Force owner
          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
          1 http://alt.ngs.noaa.gov/CORS/ National Geodetic Survey - Continuously Operating Reference Stations (CORS) Home page for CORS alternate facility in Boulder, CO information
          1 http://www.class.noaa.gov/ CLASS Homepage Order options for NGS Continuously Operating Reference Stations (CORS) datasets archived and distributed at CLASS. order
          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
          2 http://www.ngs.noaa.gov/CORS/coords.shtml CORS Coordinates Identification and descriptions of coordinate systems for CORS. information
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          MD_Identifier or RS_Identifier

          Count Component Code
          1 GLONASS > Global'naya Navigatsionnaya Sputnikovaya Sistema
          1 GNSS > Global Navigation Satellite System
          1 GNSS receiver
          1 GPS > Global Positioning System
          1 GPS Receiver
          1 ITRF00
          1 NAD83
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          EX_Extent

          Bounding Box Temporal Extent
          Count Component Description West East North South Start End
          1 -180 180 90 -90 2010-10 2011-08-09T19:13:39.705-06:00
          1 2010-11 2011-08-09T19:13:39.705-06:00
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          EX_GeographicBoundingBox

          Count Component West East North South
          1 -180 180 90 -90
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          EX_TemporalExtent

          Count Component Start End
          1 2010-10 2011-08-09T19:13:39.705-06:00
          1 2010-11 2011-08-09T19:13:39.705-06:00
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          MD_Format

          Count Component Name Version specification
          1 ASCII 2.11 Receiver Independent Exchange Format (RINEX)
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          MD_Medium

          none found
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          MD_Constraints

          Count Component Use Limitation
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          MD_ReferenceSystem

          Count Component Code Authority Title
          1 ITRF00 CORS Coordinates
          1 NAD83 CORS Coordinates
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          MD_GridSpatialRepresentation

          Count Component Number of Dimensions Cell Geometry Code
          1 2 point
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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

          Count Component Name Code Size
          1 column
          1 row
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          MD_CoverageDescription or MI_CoverageDescription

          none found
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          MD_Band or MI_Band

          none found
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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 CLASS archive: Continuously Operating Reference Stations (CORS) 2010-10 Source Contribution: GNSS data in RINEX format (ASCII) and station metadata (ASCII) digital files via FTP
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          LE_ProcessStep or LI_ProcessStep

          Count Component DateTime Description
          1 1993-12-08T00:00:00 U.S. Air Force Space Command (AFSC) formally declared the GPS satellite constellation consisting of 24 GPS satellites (Block I and Block II/IIA) as having met the requirement for Initial Operational Capability (IOC).
          1 1994-04-22T00:00:00 The first operational CORS station is NGS-owned station GAIT in Gaithersburg, MD.
          1 1995-04-27T00:00:00 The U.S. Air Force Space Command (AFSC) formally declared the GPS satellite constellation as having met the requirement for Full Operational Capability (FOC) as of April 27, 1995. Requirements include 24 operational satellites (Block II/IIA) functioning in their assigned orbits and successful testing completed for operational military functionality.
          1 2010-10-01T00:00:00 GNSS observational data from sites are ingested by NGS and are posted to the NGS online servers as daily files in RINEX format (ASCII). The NGDC archive has automated daily routines that selectively pull in the daily observational files at the original sampling rate, the daily observational summary file, the daily broadcast ephemeris files, and any corresponding meteorological files. Each site has a metadata record retained as a site log file (ASCII).
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          MI_Operation

          Count Component Code Type Status Description
          1 GNSS > Global Navigation Satellite System onGoing Global Navigation Satellite Systems (GNSS) is a generic term used to describe the space-based constellations that provide carrier phase, code range, and clock information in support of 3-dimensional positioning activities. This term encompasses existing satellite navigation systems such as the Global Positioning System (GPS) of the United States and the GLObal'naya NAvigatsionnaya Sputnikovaya Sistema (GLONASS) of Russia and also upcoming systems such as the Galileo system of the European Union (EU) and the European Space Agency (ESA), and the COMPASS/Beidou system of China.
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          MI_Platform

          Count Component Code Description
          1 GLONASS > Global'naya Navigatsionnaya Sputnikovaya Sistema The Global'naya Navigatsionnaya Sputnikovaya Sistema (GLONASS) is a Soviet space-based navigation system comparable to the American GPS system. The operational system contains 21 satellites in 3 orbital planes, with 3 on-orbit spares. Glonass provides 100 meters accuracy with its C/A (deliberately degraded) signals and 10-20 meter accuracy with its P (military) signals. http://www.glonass-ianc.rsa.ru/pls/htmldb/f?p=202:1:6462407165002138::NO
          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 GNSS receiver Positioning/Navigation
          1 GPS Receiver Positioning/Navigation
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