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spatialRepresentationInfo
referenceSystemInfo
identificationInfo
contentInfo
distributionInfo
dataQualityInfo
dataQualityInfo
metadataMaintenance

Magnetic Field Calculator
 (MI_Metadata)
    fileIdentifier:  gov.noaa.ngdc.mgg.geophysical_models:Magnetic_Field_Calculator
    language:  eng; USA
    characterSet:  (MD_CharacterSetCode) utf8
    hierarchyLevel:  (MD_ScopeCode) service
    hierarchyLevelName:  Magnetic Grid
    contact:  Brian Meyer
    dateStamp:  2015-08-31
    metadataStandardName:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
    metadataStandardVersion:  ISO 19115-2:2009(E)
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    spatialRepresentationInfo:  (MD_GridSpatialRepresentation)
        numberOfDimensions:  3
        cellGeometry:  (MD_CellGeometryCode) point
        transformationParameterAvailability:  true
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    referenceSystemInfo:  (MD_ReferenceSystem)
        referenceSystemIdentifier:  (RS_Identifier)
            authority:  (CI_Citation)
                title:  World Geodetic System 1984
                alternateTitle:  WGS 84
                date:  (CI_Date)
                    date:  2007-08-27
                    dateType:  (CI_DateTypeCode) revision
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (withheld)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4326
                            name:  WGS 84
                            description:  GML of World Geodetic System 1984 coordinate reference system.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) resourceProvider
                citedResponsibleParty:  EPSG Registry
            code:  urn:ogc:def:crs:EPSG::4326
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  Magnetic Field Calculator
            date:  (CI_Date)
                date:  2009-12-01
                dateType:  (CI_DateTypeCode) publication
            citedResponsibleParty:  NCEI (publisher)
            citedResponsibleParty:  Geomagnetic Modeling Team
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: http://www.ngdc.noaa.gov/geomag-web/#igrfwmm
                role:  (CI_RoleCode) distributor
            presentationForm:  (CI_PresentationFormCode) mapDigital
        abstract:  The Magnetic Field Calculator will calculate the total magnetic field, including components (declination, inclination, horizontal intensity, northerly intensity, easterly intensity, vertical intensity) and the annual change for each. Each calculation is for a specific location, elevation and date or range of dates. The calculated result can be obtained from two separate geomagnetic models, the IGRF11 or the WMM2010. Declination is calculated using the current World Magnetic Model (WMM) or International Geomagnetic Reference Field (IGRF) model. While results are typically accurate to 30 minutes of arc, users should be aware that several environmental factors can cause disturbances in the magnetic field.
        purpose:  The purpose of the calculators is to deliver trusted magnetic field values - past, present, and near future - to aid the public as well as the scientific community in proper navigation, positioning, and other operational and research magnetic field scenarios.
        status:  (MD_ProgressCode) completed
        pointOfContact:  Geomagnetic Modeling Team
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        descriptiveKeywords:  (MD_Keywords)
            keyword:  EARTH SCIENCE > Solid Earth > Geomagnetism > Magnetic Field
            keyword:  EARTH SCIENCE > Solid Earth > Geomagnetism > Magnetic Intensity
            keyword:  EARTH SCIENCE > Solid Earth > Geomagnetism > Magnetic Declination
            keyword:  EARTH SCIENCE > Solid Earth > Geomagnetism > Magnetic Inclination
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  GCMD Science Keywords
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Geographic Region > Global
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  GCMD Location Keywords
        descriptiveKeywords:  Data Center Keywords
        resourceConstraints:  NOAA Disclaimer
        resourceConstraints:  NGDC Copyright
        spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) grid
        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) geoscientificInformation
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -180
                eastBoundLongitude:  180
                southBoundLatitude:  -90
                northBoundLatitude:  90
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  1900-01-01
                    endPosition:  2014-12-31
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    contentInfo:  (MI_CoverageDescription)
        attributeDescription:
          RecordType:  Grid Cell
        contentType:  (MD_CoverageContentTypeCode) modelResult
        dimension:  (MD_Band)
            descriptor:  Northerly Intensity
            maxValue:
              Real:  42000
            minValue:
              Real:  -17000
            units:
              BaseUnit:
                identifier:  nanoTesla
                unitsSystem:
        dimension:  (MD_Band)
            descriptor:  Easterly Intensity
            maxValue:
              Real:  18000
            minValue:
              Real:  -18000
            units:
              BaseUnit:
                identifier:  nanoTesla
                unitsSystem:
        dimension:  (MD_Band)
            descriptor:  Vertical Intensity
            maxValue:
              Real:  61000
            minValue:
              Real:  -67000
            units:
              BaseUnit:
                identifier:  nanoTesla
                unitsSystem:
        dimension:  (MD_Band)
            descriptor:  Horizontal Intensity
            maxValue:
              Real:  42000
            minValue:
              Real:  00
            units:
              BaseUnit:
                identifier:  nanoTesla
                unitsSystem:
        dimension:  (MD_Band)
            descriptor:  Total Intensity
            maxValue:
              Real:  67000
            minValue:
              Real:  22000
            units:
              BaseUnit:
                identifier:  nanoTesla
                unitsSystem:
        dimension:  (MD_Band)
            descriptor:  Inclination
            maxValue:
              Real:  90
            minValue:
              Real:  -90
            units:
              BaseUnit:
                identifier:  degree
                unitsSystem:
        dimension:  (MD_Band)
            descriptor:  Declination
            maxValue:
              Real:  180
            minValue:
              Real:  -180
            units:
              BaseUnit:
                identifier:  degree
                unitsSystem:
        dimension:  (MD_Band)
            descriptor:  Grid Variation
            maxValue:
              Real:  180
            minValue:
              Real:  -180
            units:
              BaseUnit:
                identifier:  degree
                unitsSystem:
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    distributionInfo:  (MD_Distribution)
        distributionFormat:  (MD_Format)
            name:  HTML Format
            version:  1
            specification:  The Magnetic Field Calculator creates an HTML pop-up window which indicates the declination, inclination, horizontal intensity, northerly component, easterly component, vertical component, and total field at the location queried and reports the annual change for each parameter.
            formatDistributor:  (MD_Distributor)
                distributorContact:  (CI_ResponsibleParty)
                    organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                    contactInfo:  (CI_Contact)
                        address:  (CI_Address)
                            electronicMailAddress:  geomag.models@noaa.gov
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://www.ngdc.noaa.gov/geomag-web/#igrfwmm
                    role:  (CI_RoleCode) distributor
        distributionFormat:  (MD_Format)
            name:  XML Format
            version:  1
            specification:  The Magnetic Field Calculator creates an XML document which indicates the declination, inclination, horizontal intensity, northerly component, easterly component, vertical component, and total field at the location queried and reports the annual change for each parameter.
            formatDistributor:  (MD_Distributor)
                distributorContact:  (CI_ResponsibleParty)
                    organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                    contactInfo:  (CI_Contact)
                        address:  (CI_Address)
                            electronicMailAddress:  geomag.models@noaa.gov
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://www.ngdc.noaa.gov/geomag-web/#igrfwmm
                    role:  (CI_RoleCode) distributor
        distributionFormat:  (MD_Format)
            name:  CSV Format
            version:  1
            specification:  The Magnetic Field Calculator creates an Comma Seperated Variable (CSV) file which indicates the declination, inclination, horizontal intensity, northerly component, easterly component, vertical component, and total field at the location queried and reports the annual change for each parameter.
            formatDistributor:  (MD_Distributor)
                distributorContact:  (CI_ResponsibleParty)
                    organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                    contactInfo:  (CI_Contact)
                        address:  (CI_Address)
                            electronicMailAddress:  geomag.models@noaa.gov
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://www.ngdc.noaa.gov/geomag-web/#igrfwmm
                    role:  (CI_RoleCode) distributor
        distributor:  (MD_Distributor)
            distributorContact:  Geomagnetic Modeling Team
            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  None
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    dataQualityInfo:  NCEI repository history
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) service
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  User input of area of interest and time for desired data grid into a web interface.
            processStep:  (LE_ProcessStep)
                description:  User data is sent via HTTP request to a java servelet hosted on a local NGDC server. This checks that all of the necessary information to run the model executable correctly is present and in the correct format.
            processStep:  (LE_ProcessStep)
                description:  NGDC server accesses a C executable, in this case the IGRF executable, and inputs the user data and runs the executable to obtain desired output parameters in XML format.
                processingInformation:  (LE_Processing)
                    identifier:  (MD_Identifier)
                        code:  Processing steps were carried out collectively by the developers of the model. These developers are listed as authors of the associated paper "International Geomagnetic Reference Field: the eleventh generation".
                    algorithm:  (LE_Algorithm)
                        citation:  (CI_Citation)
                            title:  IGRF11 Spherical Harmonic Model.
                            date:  (CI_Date)
                                date:  2010-10-12
                                dateType:  (CI_DateTypeCode) publication
                            citedResponsibleParty:  (CI_ResponsibleParty)
                                contactInfo:  (CI_Contact)
                                    onlineResource:  (CI_OnlineResource)
                                        linkage: http://www.ngdc.noaa.gov/IAGA/vmod/igrf.html
                                role:
                        description:  Refer to technical report, "International Geomagnetic Reference Field: the eleventh generation", for description of algorithms.
                    algorithm:  (LE_Algorithm)
                        citation:  (CI_Citation)
                            title:  The US/UK World Magnetic Model for 2010-2015
                            date:  (CI_Date)
                                date:  2009-12-01
                                dateType:  (CI_DateTypeCode) publication
                            citedResponsibleParty:  (CI_ResponsibleParty)
                                contactInfo:  (CI_Contact)
                                    onlineResource:  (CI_OnlineResource)
                                        linkage: http://ngdc.noaa.gov/geomag/WMM/data/WMM2010/WMM2010_Report.pdf
                                role:  (CI_RoleCode) originator
                        description:  Refer to technical report, "International Geomagnetic Reference Field: the eleventh generation", for description of algorithms.
            processStep:  (LE_ProcessStep)
                description:  The XML created by the executable is sent back to NGDC server and input into the Java servelet which reformats the output into the format designated by the user at the begining of the process. This reformatted information is returned to the User's webpage.
            source:  (LI_Source)
                description:  The WMM was developed jointly by the National Geophysical Data Center (NGDC, Boulder CO, USA) and the British Geological Survey (BGS, Edinburgh, Scotland). The model is compiled using satellite and observatory measurements and observations. More information on the development of the WMM2010 can be found in the associated paper "The US/UK Magnetic Model 2010-2015".
                sourceCitation:  (CI_Citation)
                    title:  The US/UK World Magnetic Model for 2010-2015
                    date:  (CI_Date)
                        date:  2009-12-01
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: http://ngdc.noaa.gov/geomag/WMM/data/WMM2010/WMM2010_Report.pdf
                        role:  (CI_RoleCode) originator
            source:  IGRF 11
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) annually
        maintenanceNote:  Last Review Date: 2015-09-18
        maintenanceNote:  This record has been automatically modified to include references to NCEI where applicable on 2015-08-31.
        contact:  Anna Milan