Back to Collection NOAA/NESDIS/NGDC/MGG/Geophysics

View Metadata As: Get Data, FAQ, HTML, 19139 XML

Assess Metadata For: Completeness, DOI Readiness, CSW Readiness, Components
spatialRepresentationInfo
referenceSystemInfo
identificationInfo
contentInfo
contentInfo
distributionInfo
dataQualityInfo
dataQualityInfo
metadataMaintenance

U.S. Terrain Corrected Free Air Anomalies (96)
 (MI_Metadata)
    fileIdentifier:  gov.noaa.ngdc.mgg.geophysics:G01444
    language:  eng; USA
    characterSet:  (MD_CharacterSetCode) utf8
    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  (CI_ResponsibleParty)
        individualName:  Brian Meyer
        organisationName:  NOAA National Centers for Environmental Information
        contactInfo:  (CI_Contact)
            phone:  (CI_Telephone)
                voice:  303-497-6125
            address:  (CI_Address)
                electronicMailAddress:  Brian.Meyer@noaa.gov
        role:  (CI_RoleCode) pointOfContact
    dateStamp:  2017-09-25
    metadataStandardName:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
    metadataStandardVersion:  ISO 19115-2:2009(E)
return to top
    spatialRepresentationInfo:  (MD_GridSpatialRepresentation)
        numberOfDimensions:  2
        axisDimensionProperties:  (MD_Dimension)
            dimensionName:  (MD_DimensionNameTypeCode) row
            dimensionSize:  871
            resolution:
              Measure:  0.03333333333333333
        axisDimensionProperties:  (MD_Dimension)
            dimensionName:  (MD_DimensionNameTypeCode) column
            dimensionSize:  1921
            resolution:
              Measure:  0.03333333333333333
        cellGeometry:  (MD_CellGeometryCode) area
        transformationParameterAvailability: (unknown)
return to top
    referenceSystemInfo:  (MD_ReferenceSystem)
        referenceSystemIdentifier:  (RS_Identifier)
            authority:  (CI_Citation)
                title:  Mean Sea Level depth
                alternateTitle:  MSL depth
                date:  (CI_Date)
                    date:  2012-08-10
                    dateType:  (CI_DateTypeCode) revision
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (withheld)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://epsg.org/crs_5715/MSL-depth.html
                            name:  MSL depth
                            description:  GML for Vertical CRS in EPGS Registry.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) resourceProvider
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  European Petroleum Survey Group
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://epsg.org/home.html
                            name:  European Petroleum Survey Group Geodetic Parameter Registry
                            description:  Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
                            function:  (CI_OnLineFunctionCode) search
                    role:  (CI_RoleCode) publisher
            code:  urn:ogc:def:crs:EPSG::5715
return to top
    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  U.S. Terrain Corrected Free Air Anomalies (96)
            date:  (CI_Date)
                date:  1999-01-01
                dateType:  (CI_DateTypeCode) publication
            edition:  1999 Edition
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  NOAA National Centers for Environmental Information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                positionName:  User Services
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  303-497-6826
                        facsimile:  303-497-6513
                    address:  (CI_Address)
                        deliveryPoint:  325 Broadway
                        city:  Boulder
                        administrativeArea:  CO
                        postalCode:  80305-3328
                        country:  USA
                        electronicMailAddress:  ngdc.info@noaa.gov
                    hoursOfService:  8am-5pm, Monday through Friday
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                positionName:  User Services
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  303-497-6826
                        facsimile:  303-497-6513
                    address:  (CI_Address)
                        deliveryPoint:  325 Broadway
                        city:  Boulder
                        administrativeArea:  CO
                        postalCode:  80305-3328
                        country:  USA
                        electronicMailAddress:  ngdc.info@noaa.gov
                    hoursOfService:  8am-5pm, Monday through Friday
                role:  (CI_RoleCode) originator
        abstract:  This 2' gravity anomaly grid for the conterminous United States is NOT the input data set used in development of the GEOID96 model. This gravity grid models the 1.7 million terrestrial and marine gravity data held in the National Geodetic Survey gravity data base in July 1996. The data used in this grid have NOT been augmented by gravity data contributions from NGA (former National Imagery and Mapping Agency (former Defence Mapping Agency)). Please note that the GEOID96 model itself does contain the NGA (former National Imagery and Mapping Agency) contributions. These gravity values are based on the International Gravity Standardization Net 1971 (IGSN71). Terrain corrected, atmospherically corrected, Bouguer anomalies were computed with respect to the Geodetic Reference System 1980 (GRS80) using NAD83 and NAVD88 coordinates. Terrain corrections were computed by FFT integration of 30" digital elevation data throughout the United States. These complete Bouguer anomalies were gridded by splines in tension. The free air anomaly grid was obtained by restoring the Bouguer plate with a 2' mean elevation grid. Additional information is available at http://www.ngs.noaa.gov/GEOID/geoid.html
        purpose:  To provide easy access to global and regional gravity data and related models for scientific studies.
        status:  (MD_ProgressCode) completed
        pointOfContact:  (CI_ResponsibleParty)
            individualName:  Brian Meyer
            organisationName:  NOAA National Centers for Environmental Information
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  303-497-6125
                address:  (CI_Address)
                    electronicMailAddress:  Brian.Meyer@noaa.gov
            role:  (CI_RoleCode) pointOfContact
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) irregular
        descriptiveKeywords:  (MD_Keywords)
            keyword:  EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Control Surveys
            keyword:  EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Gravitational Field
            keyword:  EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Gravity
            keyword:  EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Reference Systems
            keyword:  EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Satellite Orbits
            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:  Absolute Gravity
            keyword:  Bouguer Gravity
            keyword:  Free Air Anomaly
            keyword:  Gridded Gravity
            keyword:  Land Gravity
            keyword:  Observed Gravity
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Uncontrolled Keywords
                date: (unknown)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  ICSU-WDS > International Council for Science - World Data System
            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:  Continent>North America>United States of America
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Location 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
        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 Constraints: If you use this data, please cite the National Geophysical Data Center and the originator of the data.
        resourceConstraints:  (MD_LegalConstraints)
            accessConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Access Constraints: None
        spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) grid
        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) geoscientificInformation
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -130
                eastBoundLongitude:  -66
                southBoundLatitude:  24
                northBoundLatitude:  53
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:
                    endPosition:
return to top
    contentInfo:  (MD_CoverageDescription)
        attributeDescription: (unknown)
        contentType: (unknown)
        dimension:  (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName:  Gravity grid value
                attributeType: (unknown)
            descriptor:  Value, in milligals of an observed gravity station value, after various corrections have been applied to the value.
            maxValue:
              Real:  306.684
            minValue:
              Real:  -160.874
            units:
              UnitDefinition:
                identifier:
                name:
return to top
    contentInfo:  (MD_FeatureCatalogueDescription)
        includedWithDataset:  true
        featureTypes:
          LocalName:
        featureCatalogueCitation: (unknown)
return to top
    distributionInfo:  (MD_Distribution)
        distributionFormat:  (MD_Format)
            name:  Binary
            version: (unknown)
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                positionName:  User Services
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  303-497-6826
                        facsimile:  303-497-6513
                    address:  (CI_Address)
                        deliveryPoint:  325 Broadway
                        city:  Boulder
                        administrativeArea:  CO
                        postalCode:  80305-3328
                        country:  USA
                        electronicMailAddress:  ngdc.info@noaa.gov
                    hoursOfService:  8am-5pm, Monday through Friday
                role:  (CI_RoleCode) distributor
            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  Depends on the data set
                orderingInstructions:  Ordering Instructions: Price information is available on request, or through the on-line store http:// ols.nndc.noaa.gov Prepay by check, money order, or bankcard There is a standard handling charge, with additional costs for special handling Order may be placed via fax, e-mail, regular mail, through the online store, or by telephone Custom Order Process: Contact Data Center for information.
                turnaround:  4 Days
        transferOptions:  (MD_DigitalTransferOptions)
            transferSize:
              Real:  6692764
            onLine:  (CI_OnlineResource)
                linkage: https://www.ngdc.noaa.gov/mgg/fliers/se-0703.html
            onLine:  (CI_OnlineResource)
                linkage: https://www.ngdc.noaa.gov/mgg/gravity/1999/document/html/tablegri.html
            onLine:  (CI_OnlineResource)
                linkage: https://www.ngdc.noaa.gov/mgg/gravity/1999cd.html
        transferOptions:  (MD_DigitalTransferOptions)
            offLine:  (MD_Medium)
                name:  (MD_MediumNameCode) cdRom
                mediumFormat:  (MD_MediumFormatCode) iso9660 iso9660
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
    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Horizontal Positional Accuracy Report
            evaluationMethodDescription:  Horizontal accuracy varies from source contributor to source contributor. However, horizontal positions are usually taken from topographic maps of the area being surveyed. Accuracy may range up to +/- 100 feet.
            result: (missing)
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy Report
            evaluationMethodDescription:  Vertical accuracy varies from source contributor to source contributor. However, vertical positions are usually taken from topographic maps of the area being surveyed, monumented benchmark locations, or they are determined by the use of the Global Positioning System (GPS). Accuracy may range from meters to centimeters or better.
            result: (missing)
        report:  (DQ_CompletenessCommission)
            evaluationMethodDescription:  Not available
            result: (unknown)
        report:  (DQ_ConceptualConsistency)
            measureDescription:  Not available
            result: (unknown)
        report:  (DQ_QuantitativeAttributeAccuracy)
            nameOfMeasure:  Quantitative Attribute Accuracy Assessment
            measureDescription:  Statistical analysis.
            evaluationMethodDescription:  Gravity data values are the result of the measurement of small variations in the gravitational field of the earth. The magnitudes and ranges of these variations are well known in the potential field discipline.
            result:  (DQ_QuantitativeResult)
                valueUnit:
                  BaseUnit:
                    identifier:  meters
                    unitsSystem:  http://www.bipm.org/en/measurement-units/
                value:
                  Record:  Variable: the average acceleration on the Earth's surface is about 980 centimeters per second squared, which is equal to 980 gals, but increases by about 1/2 percent from equator to pole.
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  All data were processed by the source before being forwarded to the National Geophysical Data Center
                dateTime: (unknown)
                processor:  (CI_ResponsibleParty)
                    role:  (CI_RoleCode) processor
            source:  (LI_Source)
                description:  Source Contribution: Gravity survey data Source Type: varies
                sourceCitation:  (CI_Citation)
                    title:  U.S. Terrain Corrected Free Air Anomalies (96)
                    date:  (CI_Date)
                        date: (unknown)
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce
                        contactInfo:  (CI_Contact)
                            phone:  (CI_Telephone)
                                voice:  301-713-3191
                                facsimile:  301-713-4324
                            address:  (CI_Address)
                                deliveryPoint:  Spatial Reference System Division 1315 East-West Highway N/NGS2, SSMC3, Room 8813
                                city:  Silver Spring
                                administrativeArea:  MD
                                postalCode:  20910
                                country:  U.S.A.
                                electronicMailAddress:  ngs.cors@noaa.gov
                        role:  (CI_RoleCode) custodian
                sourceExtent:  (EX_Extent)
                    temporalElement: (unknown)  (EX_TemporalExtent)
                        extent:
                          TimePeriod:
                            beginPosition:
                            endPosition:
return to top
    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) annually
        dateOfNextUpdate:  2015-11-01
        maintenanceNote:  This metadata was automatically generated from the Content Standards for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2012-08-08 version of the FGDC RSE to ISO 19115-2 transform.
        maintenanceNote:  Translated from FGDC 2012-10-10T10:32:32.541-06:00
        maintenanceNote:  Last Metadata Review Date: 2017-09-25
        maintenanceNote:  This record has been automatically modified to include references to NCEI where applicable on 2015-09-01.
        contact:  (CI_ResponsibleParty)
            organisationName:  NOAA National Centers for Environmental Information
            positionName:  Metadata Specialist
            role:  (CI_RoleCode) editor
        contact:  (CI_ResponsibleParty)
            individualName:  Brian Meyer
            organisationName:  NOAA National Centers for Environmental Information
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  303-497-6125
                address:  (CI_Address)
                    electronicMailAddress:  Brian.Meyer@noaa.gov
            role:  (CI_RoleCode) pointOfContact