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Data on the Earth's Magnetic Field and its Secular Change since 1800
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    fileIdentifier:  gov.noaa.ngdc.mgg.geophysics:G01152
    language:  eng; USA
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    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  (CI_ResponsibleParty)
        individualName:  Brian Meyer
        organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
        contactInfo:  (CI_Contact)
            phone:  (CI_Telephone)
                voice:  303-497-6125
            address:  (CI_Address)
                electronicMailAddress:  Brian.Meyer@noaa.gov
        role:  (CI_RoleCode) pointOfContact
    dateStamp:  2014-08-08
    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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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  Data on the Earth's Magnetic Field and its Secular Change since 1800
            date:  (CI_Date)
                date:  1972-01-01
                dateType:  (CI_DateTypeCode) publication
            edition:  First
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center
                positionName:  User Services
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  303-497-6826
                        facsimile:  303-497-6513
                    address:  (CI_Address)
                        deliveryPoint:  National Geophysical Data Center NOAA, Mail Code E/GC, 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/NGDC - National Geophysical Data Center
                positionName:  User Services
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  303-497-6826
                        facsimile:  303-497-6513
                    address:  (CI_Address)
                        deliveryPoint:  National Geophysical Data Center NOAA, Mail Code E/GC, 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
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center
                positionName:  Citation URL
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: http://www.ngdc.noaa.gov/geomag/geomag.shtml
                        protocol:  http
                        name:  Geomagnetic Data
                        description:  Home page
                        function:  (CI_OnLineFunctionCode) information
                role:
            series:  (CI_Series)
                name:  Solid Earth (SE)
                issueIdentification:  SE-53, A Report on Geomagnetic Observatories, 1995. SE-51, Bibliography of Historical Geomagnetic Main Field Survey and Secular Variation Reports at the World Data Center-A for Solid Earth Geophysics.
        abstract:  Information on the past and present orientation of the Earth's magnetic field is available from the National Geophysical Data Center (NGDC) which serves as the national data bank for geomagnetic data. The Earth's magnetic field has been measured by land surveys, ships, aircraft and satellites at hundreds of locations resulting in millions of observations. Many of the observations are of poor quality or are unevenly distributed around the globe. Because of these limiting factors and the variation of the main magnetic field with time, the Earth's field is usually approximated by mathematical models. These models, adjusted to fit selected available observations, have wide application in geophysical and space sciences. Surveyors can obtain data and information for individual specific locations worldwide. Past values of the magnetic field are available from models for areas within the conterminous U.S. from 1750 or from 1945 worldwide. These mathematical models must be periodically updated due to the changing nature of the Earth's magnetic field. NGDC maintains the models and data base of observations to track secular variation of the Earth's magnetic field. Models and software are available on-line. The global geomagnetic observations data bases for secular change studies include high-quality magnetic observations made at observatories worldwide since 1800. Other geomagnetic data bases are: IAGA Repeat Station data base which contains observations from exact reoccupations, Other land Surveys containing miscellaneous land observations worldwide since 1800 including a few thousand observations made at sea by the non-magnetic ships, Carnegie and Zarya, Vector airborne surveys from the Project Magnetic aircraft, satellite and selected marine observations. Most of the surface data are available on-line. At most locations, three magnetic elements were observed: Either declination (D), Inclination (I), and horizontal intensity (H), or declination, horizontal intensity, and vertical intensity (Z), or total intensity (F). Where possible, the values for other magnetic elements, usually the north component (X) and east component (Y), were derived by the computer. The altitude, latitude, and longitude are recorded for each observation. The observatory annual means file contains the results of more of the observatories operating since 1800. Files are revised as new data become available. Searches and plots of data from selected stations can be made. These secular change files are the principal source for tracking the long-period changes in the direction and intensity of the Earth's magnetic field. Other data include a digital bibliography of historical magnetic survey publications at NGDC and the co-located World Data Center-A. Over 750 reports published from the 1830's to 1980's were inventoried in a digital bibliography and digitally imaged in .PCX format. The digital images of these reports have been written to magnetic tape.
        purpose:  Provide information for research and surveyors
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        pointOfContact:  (CI_ResponsibleParty)
            individualName:  Susan McLean
            organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
            contactInfo:  (CI_Contact)
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                    voice:  (303) 497-6478
                    facsimile:  (303) 497-6513
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                    deliveryPoint:  NOAA/NESDIS/NGDC E/GC2 325 Broadway
                    city:  Boulder
                    administrativeArea:  CO
                    postalCode:  80305-3328
                    country:  USA
                    electronicMailAddress:  Susan.McLean@noaa.gov
                hoursOfService:  7:30 - 5:00 Mountain
                contactInstructions:  Contact Data Center
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        descriptiveKeywords:  (MD_Keywords)
            keyword:  EARTH SCIENCE>SOLID EARTH>Geomagnetism>Geomagnetic Forecasts
            keyword:  EARTH SCIENCE>SOLID EARTH>Geomagnetism>Geomagnetic Indices
            keyword:  EARTH SCIENCE>SOLID EARTH>Geomagnetism>Geomagnetic Induction
            keyword:  EARTH SCIENCE>SOLID EARTH>Geomagnetism>Magnetic Anomalies
            keyword:  EARTH SCIENCE>SOLID EARTH>Geomagnetism>Magnetic Declination
            keyword:  EARTH SCIENCE>SOLID EARTH>Geomagnetism>Magnetic Inclination
            keyword:  EARTH SCIENCE>SOLID EARTH>Geomagnetism>Magnetic Intensity
            keyword:  EARTH SCIENCE>SOLID EARTH>Geomagnetism>Paleomagnetism
            keyword:  EARTH SCIENCE>SOLID EARTH>Geomagnetism>Reference Fields
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                title:  NASA/Global Change Master Directory (GCMD) Earth Science Keywords
                date:  (CI_Date)
                    date:  2007-04
                    dateType:  (CI_DateTypeCode) revision
                edition:  Version 6.0.0.0.0
                editionDate:  2007-04
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA/GSFC/SED/ESD/GCDC/GCMD > Global Change Master Directory, Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
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                            linkage: http://gcmd.gsfc.nasa.gov/Resources/valids/archives/keyword_list.html
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                            name:  GCMD Keywords, Version 6.0.0.0.0
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                    role:  (CI_RoleCode) resourceProvider
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Secular Change
            keyword:  Magnetic Observatory
            keyword:  Magnetic Models
            keyword:  Magnetic Survey
            keyword:  Magnetospheric Science
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            keyword:  WDC/SEG, BOULDER>World Data Center for Solid Earth Geophysics, Boulder
            keyword:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
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                            electronicMailAddress:  gcmduso@gcmd.gsfc.nasa.gov
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
                            name:  GCMD Feedback Form
                            description:  Have a Comment for the GCMD?
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                            linkage: http://gcmd.nasa.gov/learn/keyword_list.html
                            name:  GCMD Keywords Page
                            description:  This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions.
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                            linkage: http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
                            name:  GCMD Feedback Form
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                            linkage: http://gcmd.nasa.gov/learn/keyword_list.html
                            name:  GCMD Keywords Page
                            description:  This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions.
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                    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)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Use Constraints: None
        resourceConstraints:  (MD_LegalConstraints)
            accessConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Access Constraints: No Constraints
        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) geoscientificInformation
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -180.00
                eastBoundLongitude:  180.00
                southBoundLatitude:  -90.00
                northBoundLatitude:  90.00
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  1800-01-01
                    endPosition:
        supplementalInformation:  Formally FE 17, 119, 626
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    distributionInfo:  (MD_Distribution)
        distributionFormat:  (MD_Format)
            name:  TIFF
            version:
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center
                positionName:  User Services
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                    phone:  (CI_Telephone)
                        voice:  303-497-6826
                        facsimile:  303-497-6513
                    address:  (CI_Address)
                        deliveryPoint:  National Geophysical Data Center NOAA, Mail Code E/GC, 325 Broadway
                        city:  Boulder
                        administrativeArea:  CO
                        postalCode:  80305-3328
                        country:  USA
                        electronicMailAddress:  ngdc.info@noaa.gov
                    hoursOfService:  8am-5pm, Monday through Friday
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            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  Depends on the Data Set
                orderingInstructions:  Ordering Instructions: Price information is available upon request. Custom Order Process: Contact Data Center
                turnaround:  4 Days
        transferOptions:  (MD_DigitalTransferOptions)
            transferSize:
              Real:  26671.900000
            onLine:  (CI_OnlineResource)
                linkage: http://www.ngdc.noaa.gov/geomag/geomag.shtml
                protocol:  http
                name:  Geomagnetic Data
                description:  Home page
                function:  (CI_OnLineFunctionCode) information
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                linkage: http://www.ngdc.noaa.gov/geomag/data.shtml
                protocol:  http
                name:  Geomagnetic Data On-line
                description:  Web page where different Geomagnetic data may be downloaded from
                function:  (CI_OnLineFunctionCode) download
            onLine:  (CI_OnlineResource)
                linkage: http://www.ngdc.noaa.gov/seg/potfld/geomag.html
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                name:  (MD_MediumNameCode) CARTRIDGE TAPE
                mediumFormat:  (MD_MediumFormatCode) tar
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) annually
        dateOfNextUpdate:  2011-04-23
        maintenanceNote:  This metadata was automatically generated from the Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata standard (version FGDC-STD-012-2002) using the 2012-08-08 version of the FGDC RSE to ISO 19115-2 transform.
        maintenanceNote:  Translated from FGDC 2012-10-10T10:31:51.234-06:00
        maintenanceNote:  Last Metadata Review Date: 2014-08-08
        contact:  (CI_ResponsibleParty)
            individualName:  Brian Meyer
            organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  303-497-6125
                address:  (CI_Address)
                    electronicMailAddress:  Brian.Meyer@noaa.gov
            role:  (CI_RoleCode) pointOfContact