NOAA archive: Continuously Operating Reference Stations (CORS)

gov.noaa.ngdc.stp.terrestrial:G10019 DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (comp.) DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce User Services Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC 325 Broadway

Boulder CO 80305-3328 USA (303) 497-6826 (303) 497-6513 ngdc.info@noaa.gov 7:30 - 5:00 Mountain DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce Mailing and physical address

1315 East West Highway, N/NGS3

SSMC-3 8142

Silver Spring MD 20910 USA (301) 713-3242 199402 NOAA archive: Continuously Operating Reference Stations (CORS) Boulder, CO DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce User Services Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC 325 Broadway

Boulder CO 80305-3328 USA (303) 497-6826 (303) 497-6513 ngdc.info@noaa.gov 7:30 - 5:00 Mountain http://www.ngs.noaa.gov/CORS/ ftp://www.ngs.noaa.gov/cors/rinex/ http://www.ngs.noaa.gov/UFCORS http://www.ngs.noaa.gov/CORS/standard1.shtml http://alt.ngs.noaa.gov/CORS/ ftp://alt.ngs.noaa.gov/cors/rinex/ http://www.ngdc.noaa.gov/ngdcinfo/cors.html http://www.ngs.noaa.gov/CORS/ http web browser National Geodectic Survey - Continuously Operating Reference Stations (CORS) Home page for CORS main facility in Silver Spring, MD information ftp://www.ngs.noaa.gov/cors/rinex/ ftp Index of ftp://www.ngs.noaa.gov/cors/rinex/ FTP site from CORS main facility in Silver Spring, MD download http://www.ngs.noaa.gov/UFCORS http User Friendly CORS 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. search http://www.ngs.noaa.gov/CORS/standard1.shtml http NGS CORS Data - Standard Download CORS GNSS-GPS data search tool of daily files. Allows users to query by site id, state id, country id, data type or date. search http://alt.ngs.noaa.gov/CORS/ http web browser National Geodetic Survey - Continuously Operating Reference Stations (CORS) Home page for CORS alternate facility in Boulder, CO information ftp://alt.ngs.noaa.gov/cors/rinex/ ftp Index of ftp://alt.ngs.noaa.gov/cors/rinex/ FTP site from CORS alternate facility in Boulder, CO download http://www.ngdc.noaa.gov/ngdcinfo/cors.html http Website at http://www.ngdc.noaa.gov/ngdcinfo/cors.html Information about the CORS data set that has been archived to tape at NGDC information The National Geophysical Data Center (NGDC) is the designated archive of the Continuously Operating Reference Stations (CORS) data set from the National Geodetic Survey (NGS). This record is for the CORS data that has been archived to tape at NGDC. 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 State 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. NGDC archives the CORS data set as per the NOAA/NOS Records Disposition Schedule, section 1602-12. The United States operates the Global Positioning System (GPS). The term Global Navigation Satellite Systems (GNSS) has been created to reference all navigation satellite systems. GNSS encompasses the U.S. GPS system, the Russian Federation GLONASS system, and any future systems such as Europe's Galileo or China's Compass. 199402 Present ground condition In work Daily -180.00 180.00 90.00 -90.00 NASA/GCMD Earth Science Keywords EARTH SCIENCE > Solid Earth > Geodetics/Gravity > Reference Systems EARTH SCIENCE > Solid Earth > Geodetics/Gravity > Control Surveys EARTH SCIENCE > Solid Earth > Geodetics/Gravity > Crustal Motion EARTH SCIENCE > Solid Earth > Tectonics > Plate Tectonics EARTH SCIENCE > Sun-earth Interactions > Solar Energetic Particle Properties > Total Electron Content GCMD Platform Keywords NAVSTAR > NAVSTAR Global Positioning System GPS > Global Positioning System Satellites GROUND-BASED OBSERVATIONS GROUND STATIONS ISO 19115 Topic Category geoscientificInformation location None Crust Troposphere Ionosphere None None NGS coordinates a network of CORS stations from over 150 organizations such as federal, state, and local governments, academia, the private sector, and international groups. The carrier phase observations are accurate to a few centimeters, once biases have been removed. To become part of the CORS network, each site must pass through NGS' site criteria standards and maintain its integrity. Automated routines at NGDC pull data staged by NGS at regular intervals. Data written to the NGDC archive is reviewed for completeness. Automated routines perform daily checks for file names and file sizes, and also aided by the internal checksum of GNU zip compression as data is written to tape. Any faulty data is removed from the archive. The horizontal coordinates of the GPS site, specifically the GPS antenna location, are accurate to about a centimeter once biases are removed. The vertical coordinates of the GPS site, specifically the GPS antenna location, are accurate to about 2 centimeters. DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (comp.) DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce User Services Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC 325 Broadway

1315 East West Highway, N/NGS3

SSMC-3 8142

NOAA/NESDIS/NGDC E/GC 325 Broadway

Spatial Reference System Division

1315 East-West Highway

N/NGS2, SSMC3, Room 8813

Silver Spring MD 20910 U.S.A. 301-713-3191 301-713-4324 ngs.cors@noaa.gov CORS data reference the U.S. and its territories, with selected areas in the Caribbean, Central America, Iraq, and Africa. 0.00001 0.00001 Decimal seconds North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 North American Datum of 1983, International Reference Frame of 2000 1.0 mm Explicit elevation coordinate included with horizontal coordinates DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Francine Coloma Mailing and Physical

325 Broadway

Boulder CO 80305 USA 303 497-3692 303 497-6513 Francine.Coloma@noaa.gov 9:00 - 5:00 Mountain NGS CORS dataset archived at NOAA's National Geophysical Data Center (NGDC). While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, 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. CORS observational data in RINEX (ASCII) or binary format ASCII 2.11 Receiver Independent Exchange Format (RINEX) GNU zip compression (gzip) ftp://www.ngs.noaa.gov/cors/rinex ftp://alt.ngs.noaa.gov/cors/rinex/ ftp://www.ngs.noaa.gov/cors/rinex/ ftp Index of ftp://www.ngs.noaa.gov/cors/rinex/ FTP site from CORS main facility in Silver Spring, MD download ftp://alt.ngs.noaa.gov/cors/rinex/ ftp Index of ftp://alt.ngs.noaa.gov/cors/rinex/ FTP site from CORS alternate facility in Boulder, CO download 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). GNU zip compression (gzip), tar file format package http://www.ngs.noaa.gov/CORS http://alt.ngs.noaa.gov/CORS/ http://www.ngs.noaa.gov/CORS/ http web browser National Geodectic Survey - Continuously Operating Reference Stations (CORS) Home page for CORS main facility in Silver Spring, MD information http://alt.ngs.noaa.gov/CORS/ http web browser National Geodetic Survey - Continuously Operating Reference Stations (CORS) Home page for CORS alternate facility in Boulder, CO information None View data from website, then submit order via email to francine.coloma@noaa.gov 20110804 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Francine Coloma Mailing and Physical

325 Broadway

Boulder CO 80305 USA 303 497-3692 303 497-6513 Francine.Coloma@noaa.gov 9:00 - 5:00 Mountain Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002 http://www.ngdc.noaa.gov/metadata/extensions/local_extensions.html NGDC Extensions to FGDC Metadata GPS > Global Positioning System 19950427 United States Air Force 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. Global Positioning System