Skip to main content

Boulder Magnetic Observatory


 (MI_Metadata)
    fileIdentifier:  gov.noaa.ngdc.stp.geomag:G10130
    language:  eng; USA
    characterSet:  (MD_CharacterSetCode) utf8
    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  (CI_ResponsibleParty)
        individualName:  Justin Mabie
        organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
        positionName:  Space and Terrestrial Weather Specialist
        contactInfo:  (CI_Contact)
            phone:  (CI_Telephone)
                voice:  (303) 497-6135
                facsimile:  (303) 497-6513
            address:  (CI_Address)
                deliveryPoint:  325 Broadway, Mail Code E/GC4
                city:  Boulder
                administrativeArea:  CO
                postalCode:  80305-3328
                country:  USA
                electronicMailAddress:  Justin.Mabie@noaa.gov
        role:  (CI_RoleCode) pointOfContact
    dateStamp:  2015-09-18
    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:  Boulder Magnetic Observatory
            date:  (CI_Date)
                date:  2005-01-01
                dateType:  (CI_DateTypeCode) publication
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  NOAA National Centers for Environmental Information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOI/USGS/GD/CR/GHT > Geologic Hazards Team, Central Region, Geology Division, USGS, U.S. Department of the Interior
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  (303) 273-8582
                        facsimile:  (303) 273-8600
                    address:  (CI_Address)
                        deliveryPoint:  Denver Federal Center PO Box 25046 MS-966
                        city:  Denver
                        administrativeArea:  CO
                        postalCode:  80225
                        country:  USA
                role:  (CI_RoleCode) originator
            citedResponsibleParty:  (CI_ResponsibleParty)
                positionName: (withheld)
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: http://geomag.usgs.gov
                        protocol:  http
                        name:  National Geomagnetism Program
                        description:  Monitoring of the Earth's magnetic field for research and practical applications.
                        function:  (CI_OnLineFunctionCode) information
                role: (inapplicable)
        abstract:  These data are vector and scalar component values of the Earth's magnetic field for 2004 recorded at the Boulder Magnetic Observatory in Colorado. Vector values are measured using 3 mutually orthogonal fluxgate magnetometer sensors. The scalar value of the total magnetic field is recorded with a proton precession magnetometer. All values are calibrated with measurements of the absolute value of the geomagnetic field using a DI-Flux magnetometer. The data are numerically filtered to prevent aliasing, and quality controlled during processing. Longer period values of the field, including hourly, daily, monthly, and annual means are derived from the 1-minute data.
        purpose:  To provide ground-based, calibrated values of the Earth's magnetic field at a specific location for scientific research and practical applications.
        status:  (MD_ProgressCode) completed
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        graphicOverview:  (MD_BrowseGraphic)
            fileName:  BOU04BLV.JPG
            fileDescription:  Baseline values for the Boulder calibration data for 2004
            fileType:  JPEG
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Earth Science > Solid Earth > Geomagnetism
            keyword:  Earth Science > Solid Earth > Geomagnetism > Geomagnetic Indices
            keyword:  Earth Science > Solid Earth > Geomagnetism > Magnetic Declination
            keyword:  Earth Science > Solid Earth > Geomagnetism > Magnetic Field
            keyword:  Earth Science > Solid Earth > Geomagnetism > Magnetic Inclination
            keyword:  Earth Science > Solid Earth > Geomagnetism > Magnetic Intensity
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  NASA/GCMD Earth Science Keywords
                date: (unknown)
        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_Constraints)
            useLimitation:  NOAA accepts no responsibility for the accuracy or integrity of any data provided, nor for any consequences for use of the data for any purpose(s).
        resourceConstraints:  (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Use Constraints: Contact Institution
        resourceConstraints:  (MD_LegalConstraints)
            accessConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Access Constraints: None
        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) climatologyMeteorologyAtmosphere
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -105.24
                eastBoundLongitude:  -105.24
                southBoundLatitude:  49.86
                northBoundLatitude:  49.86
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  2004-01-01T01010000
                    endPosition:  2004-12-31T24000000
return to top
    contentInfo:  (MD_CoverageDescription)
        attributeDescription: (unknown)
        contentType: (unknown)
        dimension:  (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName:  fluxgate magnetometer
                attributeType: (unknown)
            descriptor:  A kind of magnetometer that detects second harmonic signals from a secondary coil surrounding an iron core that is driven into saturation by a primary coil using radio frequency signals.The second harmonic signal is proportional to the strength of the ambient magnetic field.
            maxValue:
              Real:  180
            minValue:
              Real:  -180
            units:
              UnitDefinition:
                identifier:  degrees
                name:  degrees
        dimension:  (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName:  Overhauser magnetometer
                attributeType: (unknown)
            descriptor:  A type of scalar magnetometer that employs the precession of free unpaired electrons rather than protons in a fluid.
            maxValue:
              Real:  180.0
            minValue:
              Real:  -180.0
            units:
              UnitDefinition:
                identifier:  Decimal Degrees or Degrees and Decimal Minutes
                name:  Decimal Degrees or Degrees and Decimal Minutes
return to top
    contentInfo:  (MD_FeatureCatalogueDescription)
        includedWithDataset:  true
        featureTypes:
          LocalName:
        featureCatalogueCitation: (unknown)
return to top
    distributionInfo:  (MD_Distribution)
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                individualName:  Justin Mabie
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                positionName:  Space and Terrestrial Weather Specialist
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  (303) 497-6135
                        facsimile:  (303) 497-6513
                    address:  (CI_Address)
                        deliveryPoint:  325 Broadway, Mail Code E/GC4
                        city:  Boulder
                        administrativeArea:  CO
                        postalCode:  80305-3328
                        country:  USA
                        electronicMailAddress:  Justin.Mabie@noaa.gov
                role:  (CI_RoleCode) pointOfContact
            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  None
                orderingInstructions:  Non-digital data may be obtained by contacting data manager for instructions.
                turnaround:  0
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_CompletenessCommission)
            evaluationMethodDescription:  These data represent the complete record set for this station and this year.
            result: (unknown)
        report:  (DQ_ConceptualConsistency)
            measureDescription:  Various methods are used to check the integrity of the data. These include: (1) making comparisons between the total intensity values computed from the vector magnetometer and those measured by the scalar magnetometer, (2) comparing the field values reduced using the calibration data with those obtained during the weekly absolute measurements, and (3) visually inspecting the data and comparing with other stations.
            result: (unknown)
        report:  (DQ_QuantitativeAttributeAccuracy)
            nameOfMeasure:  Quantitative Attribute Accuracy Assessment
            measureDescription:  Dynamic Range
            evaluationMethodDescription:  Data from the Boulder Magnetic Observatory for 2004 met the requirements for being an INTERMAGNET Magnetic Observatory (IMO), and as such met the specifications listed in theINTERMAGNET Technical Manual (http://www.intermagnet.org//im_manual.pdf)
            result:  (DQ_QuantitativeResult)
                valueUnit:
                  BaseUnit:
                    identifier:  meters
                    unitsSystem:  http://www.bipm.org/en/si/
                value:
                  Record:  +/- 80,000 nT
        report:  (DQ_QuantitativeAttributeAccuracy)
            nameOfMeasure:  Quantitative Attribute Accuracy Assessment
            measureDescription:  Resolution
            evaluationMethodDescription:  Data from the Boulder Magnetic Observatory for 2004 met the requirements for being an INTERMAGNET Magnetic Observatory (IMO), and as such met the specifications listed in theINTERMAGNET Technical Manual (http://www.intermagnet.org//im_manual.pdf)
            result:  (DQ_QuantitativeResult)
                valueUnit:
                  BaseUnit:
                    identifier:  meters
                    unitsSystem:  http://www.bipm.org/en/si/
                value:
                  Record:  0.1 nT
        report:  (DQ_QuantitativeAttributeAccuracy)
            nameOfMeasure:  Quantitative Attribute Accuracy Assessment
            measureDescription:  Sampling Rate
            evaluationMethodDescription:  Data from the Boulder Magnetic Observatory for 2004 met the requirements for being an INTERMAGNET Magnetic Observatory (IMO), and as such met the specifications listed in theINTERMAGNET Technical Manual (http://www.intermagnet.org//im_manual.pdf)
            result:  (DQ_QuantitativeResult)
                valueUnit:
                  BaseUnit:
                    identifier:  meters
                    unitsSystem:  http://www.bipm.org/en/si/
                value:
                  Record:  1 Hertz (Hz)
        report:  (DQ_QuantitativeAttributeAccuracy)
            nameOfMeasure:  Quantitative Attribute Accuracy Assessment
            measureDescription:  Numeric Filter
            evaluationMethodDescription:  Data from the Boulder Magnetic Observatory for 2004 met the requirements for being an INTERMAGNET Magnetic Observatory (IMO), and as such met the specifications listed in theINTERMAGNET Technical Manual (http://www.intermagnet.org//im_manual.pdf)
            result:  (DQ_QuantitativeResult)
                valueUnit:
                  BaseUnit:
                    identifier:  meters
                    unitsSystem:  http://www.bipm.org/en/si/
                value:
                  Record:  19-point Gaussian (1-minute values)
        report:  (DQ_QuantitativeAttributeAccuracy)
            nameOfMeasure:  Quantitative Attribute Accuracy Assessment
            measureDescription:  Accuracy
            evaluationMethodDescription:  Data from the Boulder Magnetic Observatory for 2004 met the requirements for being an INTERMAGNET Magnetic Observatory (IMO), and as such met the specifications listed in theINTERMAGNET Technical Manual (http://www.intermagnet.org//im_manual.pdf)
            result:  (DQ_QuantitativeResult)
                valueUnit:
                  BaseUnit:
                    identifier:  meters
                    unitsSystem:  http://www.bipm.org/en/si/
                value:
                  Record:  +/- 5 nT (nanoTeslas) for definitive data
        report:  (DQ_QuantitativeAttributeAccuracy)
            nameOfMeasure:  Quantitative Attribute Accuracy Assessment
            measureDescription:  Long Term Stability
            evaluationMethodDescription:  Data from the Boulder Magnetic Observatory for 2004 met the requirements for being an INTERMAGNET Magnetic Observatory (IMO), and as such met the specifications listed in theINTERMAGNET Technical Manual (http://www.intermagnet.org//im_manual.pdf)
            result:  (DQ_QuantitativeResult)
                valueUnit:
                  BaseUnit:
                    identifier:  meters
                    unitsSystem:  http://www.bipm.org/en/si/
                value:
                  Record:  5 nT/year
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  These data were processed using algorithms developed at the U.S. Geological Survey (USGS).
                dateTime: (unknown)
return to top
    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) annually
        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 2012-10-10T11:05:29.405-06:00
        maintenanceNote:  Last Metadata Review Date: 2012-01-31
        maintenanceNote:  This record was automatically modified on 2015-09-18 to include references to NCEI where applicable.
        contact:  (CI_ResponsibleParty)
            individualName:  Justin Mabie
            organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
            positionName:  Space and Terrestrial Weather Specialist
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  (303) 497-6135
                    facsimile:  (303) 497-6513
                address:  (CI_Address)
                    deliveryPoint:  325 Broadway, Mail Code E/GC4
                    city:  Boulder
                    administrativeArea:  CO
                    postalCode:  80305-3328
                    country:  USA
                    electronicMailAddress:  Justin.Mabie@noaa.gov
            role:  (CI_RoleCode) pointOfContact
        contact:  (CI_ResponsibleParty)
            individualName:  Justin Mabie
            organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
            positionName:  Space and Terrestrial Weather Specialist
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  (303) 497-6135
                    facsimile:  (303) 497-6513
                address:  (CI_Address)
                    deliveryPoint:  325 Broadway, Mail Code E/GC4
                    city:  Boulder
                    administrativeArea:  CO
                    postalCode:  80305-3328
                    country:  USA
                    electronicMailAddress:  Justin.Mabie@noaa.gov
            role:  (CI_RoleCode) pointOfContact