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Calcium Chromosphere Observed from McMath-Hulbert Observatory
 (MI_Metadata)
    fileIdentifier:  gov.noaa.ngdc.stp.solar_imagery:Chromosphere_Calcium_McMathHulbert
    language:  eng; U.S.A.
    characterSet:  (MD_CharacterSetCode) utf8
    hierarchyLevel:  (MD_ScopeCode) nonGeographicDataset
    hierarchyLevel:  (MD_ScopeCode) series
    contact:  (CI_ResponsibleParty)
        individualName:  Karen E. Horan
        organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
        positionName:
        contactInfo:  (CI_Contact)
            phone:  (CI_Telephone)
                voice:  303.497.6277
                facsimile:  303.497.6513
            address:  (CI_Address)
                deliveryPoint:  NOAA/NESDIS/NGDC E/GC1 325 Broadway
                city:  Boulder
                administrativeArea:  CO
                postalCode:  80305-3328
                country:  USA
                electronicMailAddress:  Karen.E.Horan@noaa.gov
            hoursOfService:  7:30 - 5:00 Mountain
            contactInstructions:  Contact Data Center
        role:  (CI_RoleCode) custodian
    dateStamp:  2016-12-27
    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:  Calcium Chromosphere Observed from McMath-Hulbert Observatory
            date:  (CI_Date)
                date:  1948-02-18
                dateType:  (CI_DateTypeCode) creation
            identifier:  (MD_Identifier)
                code:  Chromosphere_Calcium_McMathHulbert
            citedResponsibleParty:  NCEI (custodian)
            presentationForm:  (CI_PresentationFormCode) documentDigital
        abstract:  The calcium datasets consist of full-disk images of the sun in Calcium (Ca) II K wavelength (393.4 nm). Ca II K imagery reveal magnetic structures of the sun from about 500 to 2000 km above the photosphere that are not evident in white light images. The chromosphere is an extremely dynamic layer of the sun consisting of a mixture of hot ionized plasma and cool gas. The presence of calcium ions in the chromospheric (along with other ions such as helium and hydrogen) lead to the absorption of radiant emission from the sun. The Ca II K absorption lines are extremely sensitive to local magnetic fields wherein the presence of stronger magnetic fields results in less absorption (brighter features) than weaker fields (more absorption = darker features). Unique features of the chromosphere evident in Ca II K are plage, pores, supergranulation cells and the chromospheric network. Also observed in Ca II K are solar features typically discussed in the context of the photosphere, including sunspots and faculae. Sunspots in photospheric observations appear as dark regions due to the cooler temperatures (~3000 oK) of the overlying gas compared to the surrounding solar surface (~5500 oK). Although sunspots are regions of intense solar magnetic activity (i.e. less absorption), the lack of radiant emissions from the underlying photosphere results in chromospheric sunspot regions that remain darker than the surrounding sun. Faculae, on the other hand, are brighter regions in chromospheric observations which result from the concentration of magnetic field lines between solar granules (solar convection cells). Closely associated with faculae are bright areas of chromospheric plage, also referred to as floccule, within solar active regions that are associated with sunspot formation. Solar pores are actually small sunspots that have not yet formed (and may never form) into the standard picture of a dark central umbra surrounded by a somewhat brighter penumbra. Supergranulation cells are large regions of convective horizontal flows (larger than individual granules) wherein solar material and an embedded magnetic field flow radially outward from the center and downward at the outer boundaries causing the web-like appearance of the chromospheric network structure.
        purpose:  Scientific data stewardship of solar-terrestrial datasets in compliance with NOAA Administrative Order (NAO) 212-12, "Management of Environmental and Geospatial Data and Information", dated 04 Nov 10. Scientific Data Stewardship includes the Archive, Access, and Assessment (AAA) of operational and related solar and space environmental datasets.
        status:  (MD_ProgressCode) Complete
        pointOfContact:  (CI_ResponsibleParty)
            individualName:  William Denig
            organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  (303) 497-6323
                    facsimile:  (303) 497-6513
                address:  (CI_Address)
                    deliveryPoint:  325 Broadway E/GC2
                    city:  Boulder
                    administrativeArea:  CO
                    postalCode:  80305
                    country:  USA
                    electronicMailAddress:  solar.ngdc@noaa.gov
                hoursOfService:  7:30 - 4:30 Mountain
            role:  (CI_RoleCode) pointOfContact
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) nonePlanned
        graphicOverview:  (MD_BrowseGraphic)
            fileName: https://www.ngdc.noaa.gov/stp/space-weather/solar-data/solar-imagery/chromosphere/calcium/mcmath/1979/01/mcma_caiik_fp_19790118_1445.jpg
            fileDescription:  Example Image from Chromosphere_Calcium_McMathHulbert series.
            fileType:  jpg
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Sun-Earth Interactions > Solar Activity > Solar Active Regions
            keyword:  Sun-Earth Interactions > Solar Activity > Solar Imagery
            keyword:  Sun-Earth Interactions > Solar Activity > Sunspots
            keyword:  Sun-Earth Interactions > Solar Activity > Corona
            keyword:  Sun-Earth Interactions > Solar Activity > Solar Synoptic Maps
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Science Keywords
                date:  (CI_Date)
                    date:  2018-03-15
                    dateType:  (CI_DateTypeCode) publication
                edition:  8.6
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-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:  Space > Solar Region > Chromosphere
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Location Keywords
                date:  (CI_Date)
                    date:  2017-07-25
                    dateType:  (CI_DateTypeCode) publication
                edition:  8.6
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-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:  Solar Telescopes
            type:  (MD_KeywordTypeCode) instrument
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Instrument Keywords
                date:  (CI_Date)
                    date:  2018-02-27
                    dateType:  (CI_DateTypeCode) publication
                edition:  8.6
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-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:  Solar Observatory Stations
            type:  (MD_KeywordTypeCode) platform
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Platform Keywords
                date:  (CI_Date)
                    date:  2018-03-14
                    dateType:  (CI_DateTypeCode) publication
                edition:  8.6
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-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) dataCenter
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Data Center Keywords
                date:  (CI_Date)
                    date:  2018-03-18
                    dateType:  (CI_DateTypeCode) publication
                edition:  8.6
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-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:  NOAA > Space Weather Program
            keyword:  WDS > World Data Service for Geophysics, Boulder
            type:  (MD_KeywordTypeCode) project
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Project Keywords
                date:  (CI_Date)
                    date:  2018-03-28
                    dateType:  (CI_DateTypeCode) publication
                edition:  8.6
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-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.
        spatialResolution:  (MD_Resolution)
            levelOfDetail:
        language:  eng; U.S.A.
        topicCategory:  (MD_TopicCategoryCode) climatologyMeteorologyAtmosphere
        extent:  (EX_Extent)
            description:  Non-geographic
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  1948-02-18
                    endPosition:  1979-01-27
        supplementalInformation:  The NOAA National Centers for Environmental Information (formally NGDC) provides scientific data stewardship of solar-terrestrial datasets in compliance with NOAA Administrative Order (NAO 212-15), "Management of Environmental Data and Information", published 04 Nov 10. Scientific Data Stewardship includes the Archive, Access, and Assessment (AAA) of operational and related solar and space environmental datasets.
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    distributionInfo:  (MD_Distribution)
        distributionFormat: (missing)
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                individualName:  William Denig
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  (303) 497-6323
                        facsimile:  (303) 497-6513
                    address:  (CI_Address)
                        deliveryPoint:  325 Broadway E/GC2
                        city:  Boulder
                        administrativeArea:  CO
                        postalCode:  80305
                        country:  USA
                        electronicMailAddress:  solar.ngdc@noaa.gov
                    hoursOfService:  7:30 - 4:30 Mountain
                role:  (CI_RoleCode) pointOfContact
        transferOptions:  (MD_DigitalTransferOptions)
            unitsOfDistribution:  daily
            transferSize: (unknown)
            onLine:  (CI_OnlineResource)
                linkage: https://www.ngdc.noaa.gov/stp/space-weather/solar-data/solar-imagery/chromosphere/calcium/mcmath/
                name:  Chromosphere_Calcium_McMathHulbert Directory
                description:  All images and related documentation.
                function:  (CI_OnLineFunctionCode) download
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) series
        report:  (DQ_CompletenessCommission)
            evaluationMethodDescription:  Collection consists of daily solar images (photographs) and drawings provided by various solar observatories. The collection is as complete as possible with all available data online.
            result: (unknown)
        report:  (DQ_ConceptualConsistency)
            measureDescription:  Observatory staff acquire data from one or more telescopes viewing the sun at various wavelengths to identify solar features of interest including the solar corona, plage regions, filaments and prominances.
            result: (unknown)
        report:  (DQ_FormatConsistency)
            evaluationMethodDescription:  Consistent data presentation formats are used for each separate dataset.
            result: (unknown)
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            evaluationMethodDescription:  Drawings are properly rotated into a heliocentric coordination orientation. Top is north. Right is east.
            result: (unknown)
        report:  (DQ_ThematicClassificationCorrectness)
            evaluationMethodDescription:  Solar images and drawings were obtained and/or prepared by trained staff at the various institutions.
            result: (unknown)
        report:  (DQ_AccuracyOfATimeMeasurement)
            evaluationMethodDescription:  Daily solar images and drawings are annotated with the observation time and other relevant metadata.
            result: (unknown)
        lineage:  (LI_Lineage)
            processStep:  (LI_ProcessStep)
                description:  Film and paper records professionally digitized through the NOAA Climate Data Modernization Program (CDMP).
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) annually
        maintenanceNote:  This metadata was automatically generated from a form in in the Chameleon Editor (https://www.ngdc.noaa.gov/cedit) with solarimagery2iso.xsl on 2016-12-27.
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  (MI_Instrument)
            identifier: (inapplicable)
            type:  Solar Telescopes
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                code:  McMath-Hulbert Observatory
            description:  TBD
            instrument: (inapplicable)