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Magnetic Field Calculator


 (MI_Metadata)
    fileIdentifier:  gov.noaa.ngdc.mgg.geophysical_models:Magnetic_Field_Calculator
    hierarchyLevel:  (MD_ScopeCode) service
    hierarchyLevelName:  Magnetic Grid
    contact:  (CI_ResponsibleParty)
        organisationName:  NOAA National Centers for Environmental Information
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                electronicMailAddress:  ncei.info@noaa.gov
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                linkage: https://www.ncei.noaa.gov/contact
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                description:  Information for contacts at NCEI.
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    dateStamp:  2020-05-14
    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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        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
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                    date:  2007-08-27
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            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
            identifier:  (MD_Identifier)
                authority:  (CI_Citation)
                    title:  NOAA National Centers for Environmental Information
                    date: (inapplicable)
                code:  NCEI Metadata ID: gov.noaa.ngdc.mgg.geophysical_models:Magnetic_Field_Calculator
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                organisationName:  NOAA National Centers for Environmental Information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                positionName:  NCEI Geomagnetic Modeling Team
                role:  (CI_RoleCode) author
            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.
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            organisationName:  NOAA National Centers for Environmental Information
            positionName:  NCEI Geomagnetic Modeling Team
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                    electronicMailAddress:  geomag.models@noaa.gov
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        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
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                title:  Global Change Master Directory (GCMD) Science Keywords
                date:  (CI_Date)
                    date:  2020-01-09
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                edition:  9.1
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                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
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                            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.
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                title:  Global Change Master Directory (GCMD) Location Keywords
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                            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
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            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
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                title:  Global Change Master Directory (GCMD) Data Center Keywords
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                    date:  2020-01-09
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                edition:  9.1
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                            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
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        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:  Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
        resourceConstraints:  (MD_LegalConstraints)
            useLimitation:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Cite as: NCEI Geomagnetic Modeling Team. 2009: Magnetic Field Calculator. NOAA National Centers for Environmental Information. Accessed [date].
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        language:  eng; USA
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                extent:
                  TimePeriod:
                    beginPosition:  1900-01-01
                    endPosition:  2014-12-31
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        attributeDescription:
          RecordType:  Grid Cell
        contentType:  (MD_CoverageContentTypeCode) modelResult
        dimension:  (MD_Band)
            descriptor:  Northerly Intensity
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            descriptor:  Easterly Intensity
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            descriptor:  Vertical Intensity
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            descriptor:  Inclination
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            descriptor:  Declination
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                organisationName:  NOAA National Centers for Environmental Information
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                        electronicMailAddress:  ncei.info@noaa.gov
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                        linkage: https://www.ncei.noaa.gov/contact
                        name:  NCEI Contact Information
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                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:  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.
            distributorFormat:  (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.
            distributorFormat:  (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.
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                    linkage: https://www.ngdc.noaa.gov/geomag-web/#igrfwmm
                    protocol:  HTTPS
                    name:  Magnetic Field Calculator Home Page
                    function:  (CI_OnLineFunctionCode) information
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        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) repository
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                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
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        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
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                                contactInfo:  (CI_Contact)
                                    onlineResource:  (CI_OnlineResource)
                                        linkage: https://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)
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                                        linkage: https://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)
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                                linkage: https://ngdc.noaa.gov/geomag/WMM/data/WMM2010/WMM2010_Report.pdf
                        role:  (CI_RoleCode) originator
            source:  (LI_Source)
                description:  The IGRF is the product of a collaborative effort between magnetic field modellers and the institutes involved in collecting and disseminating magnetic field data from satellites and from observatories and surveys around the world. The IGRF is a series of mathematical models of the Earth's main field and its annual rate of change (secular variation).
                sourceCitation:  (CI_Citation)
                    title:  International Geomagnetic Reference Field 11
                    alternateTitle:  IGRF 11
                    date:  (CI_Date)
                        date:  2010-10-12
                        dateType:  (CI_DateTypeCode) revision
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  International Association of Geomagnetism and Aeronomy (IAGA)
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: https://www.ngdc.noaa.gov/IAGA/vmod/igrf.html
                                name:  International Geomagnetic Reference Field
                                description:  The International Association of Geomagnetism and Aeronomy (IAGA) has released the 11th Generation International Geomagnetic Reference Field, which is the latest version of a standard mathematical description of the Earth's main magnetic field that is used widely in studies of the Earth's deep interior, its crust and its ionosphere and magnetosphere.
                                function:  (CI_OnLineFunctionCode) information
                        role:  (CI_RoleCode) resourceProvider
                    otherCitationDetails:  Report on the Reference Field. Equations and coefficients for the eleventh generation. DOI: 10.1111/j.1365-246X.2010.04804.x
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