| Archive of NOAA Continuously Operating Reference Stations (CORS) Network (NCN) | identificationInfo|
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| (MI_Metadata) fileIdentifier: gov.noaa.ngdc.stp.terrestrial:G10019 language: eng; USA characterSet: (MD_CharacterSetCode) utf8 hierarchyLevel: (MD_ScopeCode) series contact: (CI_ResponsibleParty) organisationName: NOAA National Centers for Environmental Information contactInfo: (CI_Contact) address: (CI_Address) electronicMailAddress: ncei.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://www.ncei.noaa.gov/contact name: NCEI Contact Information description: Information for contacts at NCEI. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) pointOfContact dateStamp: 2023-09-14 metadataStandardName: ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data metadataStandardVersion: ISO 19115-2:2009(E) return to top identificationInfo: (MD_DataIdentification) citation: (CI_Citation) title: Archive of NOAA Continuously Operating Reference Stations (CORS) Network (NCN) date: (CI_Date) date: 1994-04-22 dateType: (CI_DateTypeCode) publication identifier: (MD_Identifier) authority: (CI_Citation) title: International DOI Foundation (IDF) date: (inapplicable) code: Anchor: DOI 10.25921/wc4r-ee36 identifier: (MD_Identifier) authority: (CI_Citation) title: NOAA National Centers for Environmental Information date: (inapplicable) code: NCEI Metadata ID: gov.noaa.ngdc.stp.terrestrial:G10019 citedResponsibleParty: (CI_ResponsibleParty) organisationName: NOAA National Centers for Environmental Information role: (CI_RoleCode) publisher citedResponsibleParty: (CI_ResponsibleParty) organisationName: NOAA National Geodetic Survey (NGS) role: (CI_RoleCode) author abstract: 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. purpose: The CORS data set enables users to attain centimeter-level positioning for points of interest and can be used to measure crustal motion, moisture content for the lower atmosphere, and total electronic content in the upper atmosphere. NGS publishes coordinates for CORS in several reference frames. This includes the current global reference frame from the International GNSS Service (IGS), and with respect to the National Spatial Reference System (NSRS) realizations of the North American Datum of 1983 (NAD 83) as defined by NGS. credit: NGS coordinates a network of CORS stations from approximately 200 organizations such as federal, state, and local governments, academia, the private sector, and international groups. status: (MD_ProgressCode) ongoing pointOfContact: (CI_ResponsibleParty) organisationName: NOAA National Centers for Environmental Information contactInfo: (CI_Contact) address: (CI_Address) electronicMailAddress: ncei.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://www.ncei.noaa.gov/contact name: NCEI Contact Information description: Information for contacts at NCEI. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) pointOfContact pointOfContact: (CI_ResponsibleParty) organisationName: Francine Coloma contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (303) 497-3692 address: (CI_Address) deliveryPoint: 325 Broadway St city: Boulder administrativeArea: CO postalCode: 80027 country: USA electronicMailAddress: ngs.cors@noaa.gov hoursOfService: 9:00 - 4:00 Mountain role: (CI_RoleCode) pointOfContact resourceMaintenance: (MD_MaintenanceInformation) maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) daily graphicOverview: (MD_BrowseGraphic) fileName: https://www.ngdc.noaa.gov/image/cors_main765x320.jpg fileDescription: NCEI Archive of NGS CORS data descriptiveKeywords: (MD_Keywords) keyword: EARTH SCIENCE > Solid Earth > Geodetics keyword: EARTH SCIENCE > Solid Earth > Geodetics > Coordinate Reference Systems keyword: EARTH SCIENCE > Solid Earth > Geodetics > Coordinate Reference Systems > Country/Regional Coordinate Reference System keyword: EARTH SCIENCE > Solid Earth > Geodetics > Coordinate Reference Systems > Global Coordinate Reference System keyword: EARTH SCIENCE > Solid Earth > Geodetics > Ellipsoid Characteristics keyword: EARTH SCIENCE > Solid Earth > Geodetics > Geoid Characteristics keyword: EARTH SCIENCE > Solid Earth > Geodetics > Control Surveys keyword: EARTH SCIENCE > Solid Earth > Geodetics > Crustal Motion keyword: EARTH SCIENCE > Solid Earth > Geomorphic Landforms/Processes keyword: EARTH SCIENCE > Solid Earth > Gravity/Gravitational Field type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Science Keywords date: (CI_Date) date: 2020-01-09 dateType: (CI_DateTypeCode) publication edition: 9.1 citedResponsibleParty: (CI_ResponsibleParty) organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords name: Global Change Master Directory (GCMD) Keywords description: The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian descriptiveKeywords: (MD_Keywords) keyword: NOAA > National Geodetic Survey (NGS) > Continuously Operating Reference Station (CORS) type: (MD_KeywordTypeCode) project thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Project Keywords date: (CI_Date) date: 2020-01-09 dateType: (CI_DateTypeCode) publication edition: 9.1 citedResponsibleParty: (CI_ResponsibleParty) organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords name: Global Change Master Directory (GCMD) Keywords description: The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian descriptiveKeywords: (MD_Keywords) keyword: GPS > Global Positioning System Satellites keyword: NAVSTAR > NAVSTAR Global Positioning System keyword: GLONASS > GLObalnaya NAvigatsionnaya Sputnikovaya Sistema keyword: GNSS > Global Navigation Satellite System type: (MD_KeywordTypeCode) platform thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Platform Keywords date: (CI_Date) date: 2020-01-09 dateType: (CI_DateTypeCode) publication edition: 9.1 citedResponsibleParty: (CI_ResponsibleParty) organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords name: Global Change Master Directory (GCMD) Keywords description: The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian descriptiveKeywords: (MD_Keywords) keyword: Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS > GPS Receivers keyword: Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS > GNSS Receivers type: (MD_KeywordTypeCode) instrument thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Instrument Keywords date: (CI_Date) date: 2020-01-09 dateType: (CI_DateTypeCode) publication edition: 9.1 citedResponsibleParty: (CI_ResponsibleParty) organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords name: Global Change Master Directory (GCMD) Keywords description: The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian descriptiveKeywords: (MD_Keywords) keyword: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce keyword: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce type: (MD_KeywordTypeCode) dataCentre thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Data Center Keywords date: (CI_Date) date: 2020-01-09 dateType: (CI_DateTypeCode) publication edition: 9.1 citedResponsibleParty: (CI_ResponsibleParty) organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords name: Global Change Master Directory (GCMD) Keywords description: The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian descriptiveKeywords: (MD_Keywords) keyword: Geodetic/Global Positioning type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: NOS Data Explorer Themes date: (unknown) descriptiveKeywords: (MD_Keywords) keyword: United States type: (MD_KeywordTypeCode) place thesaurusName: (CI_Citation) title: Getty Thesaurus of Geographic Names date: (CI_Date) date: 2011-04-11 dateType: (CI_DateTypeCode) revision citedResponsibleParty: (CI_ResponsibleParty) organisationName: Getty Research Institute contactInfo: (CI_Contact) address: (CI_Address) deliveryPoint: 1200 Getty Center Drive, Suite 1100 city: Los Angeles administrativeArea: California postalCode: 90049-1688 country: United States electronicMailAddress: TGN@getty.edu onlineResource: (CI_OnlineResource) linkage: http://www.getty.edu/research/tools/vocabularies/tgn/index.html name: Getty Thesaurus of Geographic Names Online Page description: This page provides an interface to search the Getty Thesaurus of Geographic Names. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian resourceConstraints: (MD_LegalConstraints) useLimitation: 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. resourceConstraints: (MD_LegalConstraints) accessConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. resourceConstraints: (MD_LegalConstraints) useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. resourceConstraints: (MD_Constraints) useLimitation: 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. resourceConstraints: (MD_LegalConstraints) useLimitation: (MD_RestrictionCode) otherRestrictions otherConstraints: Cite as: NOAA National Geodetic Survey (NGS). 1994. NOAA Archive of NGS National Continuously Operating Reference Station (CORS) Network (NCN) [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/wc4r-ee36. Accessed [date]. aggregationInfo: (MD_AggregateInformation) aggregateDataSetName: (CI_Citation) title: Continuously Operating Reference Station (CORS) date: (inapplicable) citedResponsibleParty: (CI_ResponsibleParty) organisationName: NOAA NOS National Geodetic Survey role: (CI_RoleCode) {{codeListValue}} citedResponsibleParty: (CI_ResponsibleParty) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.ngs.noaa.gov/CORS/ protocol: https name: National Geodectic Survey - Continuously Operating Reference Stations (CORS) description: Home page for CORS main facility in Silver Spring, MD function: (CI_OnLineFunctionCode) information role: (inapplicable) associationType: (DS_AssociationTypeCode) crossReference aggregationInfo: (MD_AggregateInformation) aggregateDataSetName: (CI_Citation) title: Continuously Operating Reference Station (CORS) Coordinate Update Policy date: (CI_Date) date: 2011-12-20 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://geodesy.noaa.gov/INFO/Policy/CORS-coordinate-policyv4_20Dec2011.pdf description: Reference frames are updated periodically according to the policy. function: (CI_OnLineFunctionCode) information role: (inapplicable) associationType: (DS_AssociationTypeCode) crossReference language: eng; USA topicCategory: (MD_TopicCategoryCode) geoscientificInformation topicCategory: (MD_TopicCategoryCode) location extent: (EX_Extent) description: CORS data is collected throughout the United States, its territories, and a few foreign countries. geographicElement: (EX_GeographicBoundingBox) westBoundLongitude: -180.00 eastBoundLongitude: 180.00 southBoundLatitude: -90.00 northBoundLatitude: 90.00 temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1994-02-01 endPosition: supplementalInformation: 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. return to top contentInfo: (MI_CoverageDescription) attributeDescription: (unknown) contentType: (MD_CoverageContentTypeCode) referenceInformation dimension: (MD_Band) sequenceIdentifier: MemberName: aName: Latitude attributeType: TypeName: aName: Real descriptor: Latitude is measured from the equator, with positive values going north and negative values going south maxValue: Real: 90 minValue: Real: -90 units: scaleFactor: Real: 1 return to top contentInfo: (MI_CoverageDescription) attributeDescription: (unknown) contentType: (MD_CoverageContentTypeCode) referenceInformation dimension: (MD_Band) sequenceIdentifier: MemberName: aName: Longitude attributeType: TypeName: aName: Real descriptor: 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 maxValue: Real: 180 minValue: Real: -180 units: scaleFactor: Real: 1 return to top contentInfo: (MI_CoverageDescription) attributeDescription: (unknown) contentType: (MD_CoverageContentTypeCode) physicalMeasurement dimension: (MD_Band) sequenceIdentifier: MemberName: aName: Orthometric height (m) attributeType: TypeName: aName: Real descriptor: 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. maxValue: Real: 10000 minValue: Real: -50 units: scaleFactor: Real: 1 return to top contentInfo: (MI_CoverageDescription) attributeDescription: (unknown) contentType: (MD_CoverageContentTypeCode) physicalMeasurement dimension: (MD_Band) sequenceIdentifier: MemberName: aName: Ellipsoid or geodetic height (m) attributeType: TypeName: aName: Real descriptor: 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. maxValue: Real: 10000 minValue: Real: -5000 units: scaleFactor: Real: 1 return to top distributionInfo: (MD_Distribution) distributor: (MD_Distributor) distributorContact: (CI_ResponsibleParty) organisationName: NOAA National Centers for Environmental Information contactInfo: (CI_Contact) address: (CI_Address) electronicMailAddress: ncei.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://www.ncei.noaa.gov/contact name: NCEI Contact Information description: Information for contacts at NCEI. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) distributor distributionOrderProcess: (MD_StandardOrderProcess) fees: In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. orderingInstructions: Contact NCEI for other distribution options and instructions. distributorFormat: (MD_Format) name: ASCII version: 2.11 specification: Receiver Independent Exchange Format (RINEX) fileDecompressionTechnique: GNU zip compression (gzip) distributorFormat: (MD_Format) name: binary version: (inapplicable) specification: 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). fileDecompressionTechnique: GNU zip compression (gzip), tar file format package distributorTransferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: https://doi.org/10.25921/wc4r-ee36 protocol: HTTPS name: Metadata Landing Page function: (CI_OnLineFunctionCode) information distributorTransferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: https://www.class.noaa.gov/saa/products/search?sub_id=0&datatype_family=CORS protocol: https applicationProfile: web browser name: CLASS Data Search and Order description: Search the CORS data archive and submit an order for the dataset via the interface. function: (CI_OnLineFunctionCode) order return to top dataQualityInfo: (DQ_DataQuality) scope: (DQ_Scope) level: (MD_ScopeCode) series report: (DQ_AbsoluteExternalPositionalAccuracy) nameOfMeasure: Horizontal Positional Accuracy Report evaluationMethodDescription: The horizontal coordinates of the GPS site, specifically the GPS antenna location, are accurate to about a centimeter once biases are removed. result: (missing) report: (DQ_AbsoluteExternalPositionalAccuracy) nameOfMeasure: Vertical Positional Accuracy Report evaluationMethodDescription: The vertical coordinates of the GPS site, specifically the GPS antenna location, are accurate to about 2 centimeters once biases are removed. result: (missing) report: (DQ_CompletenessCommission) evaluationMethodDescription: Data written to the NCEI 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. result: (unknown) report: (DQ_ConceptualConsistency) measureDescription: To become part of the CORS network, each site must pass through NGS' site criteria standards and maintain its integrity. Automated routines at NCEI pull data staged by NGS at regular intervals. result: (unknown) lineage: (LI_Lineage) statement: GNSS observational data from the CORS network are ingested, translated, and processed by NGS and are posted to the NGS online servers as hourly or daily files, and ultimately retained as daily files in RINEX format. After 30 days, data in the at-sampling rate is copied to the NCEI archive, and NGS online holdings are then decimated to a 30-second sampling rate. Special use case: Certain groups such as the Federal Aviation Administration, make GNSS data available in binary format to NGS. These data are used as input to algorithms for internal NOAA models such as the US-Total Electron Content product. The Data Center, not NGS, has decided to archive the raw data from these stations as a daily tar file consisting of hourly binary files processStep: (LE_ProcessStep) description: 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. dateTime: DateTime: 1994-02-01T00:00:00 processor: (CI_ResponsibleParty) organisationName: NOAA National Geodetic Survey role: (CI_RoleCode) processor processStep: (LE_ProcessStep) description: 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. dateTime: DateTime: 1994-02-01T00:00:00 processor: (CI_ResponsibleParty) organisationName: NOAA National Geodetic Survey role: (CI_RoleCode) processor processStep: (LE_ProcessStep) description: DISTRIBUTION: NGS makes hourly and daily files available online. For the special case of binary FAA and USCG data, NGS pushes these files to the Data Center every 5 minutes. The Data Center stages the data for internal NOAA groups, who harvests the data at a predetermined sub-hourly period as input to their algorithms. The completed binary hourly file at the Data Center is kept locally. At the end of the day, a daily tar file consisting of the hourly data are created and staged for archive. dateTime: DateTime: 1994-02-01T00:00:00 processor: (CI_ResponsibleParty) organisationName: NOAA National Geodetic Survey role: (CI_RoleCode) processor processStep: (LE_ProcessStep) description: 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. dateTime: DateTime: 1994-02-01T00:00:00 processor: (CI_ResponsibleParty) organisationName: NOAA National Geodetic Survey role: (CI_RoleCode) processor processStep: (LE_ProcessStep) description: ARCHIVE: Prior to the 30-day mark, the RINEX at-sampling rate data is copied to NCEI. Aftter 30 days, NCEI 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 NCEI to CLASS. dateTime: DateTime: 1994-02-01T00:00:00 processor: (CI_ResponsibleParty) organisationName: NOAA National Centers for Environmental Information positionName: CORS Data Manager role: (CI_RoleCode) processor source: (LI_Source) description: Source Contribution: GNSS observational data in RINEX format and binary format, orbit data, and meteorological data (when available). Source Type: digital files via FTP return to top dataQualityInfo: (DQ_DataQuality) scope: (DQ_Scope) level: (MD_ScopeCode) repository levelDescription: (MD_ScopeDescription) other: NOAA National Centers for Environmental Information lineage: (LI_Lineage) processStep: (LE_ProcessStep) description: NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. dateTime: DateTime: 2015-04-22T00:00:00 return to top metadataMaintenance: (MD_MaintenanceInformation) maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) asNeeded return to top acquisitionInformation: (MI_AcquisitionInformation) instrument: (MI_Instrument) identifier: (MD_Identifier) code: Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS type: Positioning/Navigation platform: (MI_Platform) identifier: (MD_Identifier) code: GPS > Global Positioning System description: 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. sponsor: (CI_ResponsibleParty) organisationName: United States Air Force role: (CI_RoleCode) sponsor instrument: platform: (MI_Platform) identifier: (MD_Identifier) code: GLONASS > GLObalnaya NAvigatsionnaya Sputnikovaya Sistema description: Russian Federation Aerospace Defense Forces developed, maintains, and operates the space and control segments of the GLONASS constellation. sponsor: (CI_ResponsibleParty) organisationName: Russian Federation Aerospace Defense Forces role: (CI_RoleCode) sponsor instrument: (missing) | |
