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Calculations of the Total Number of Electrons Along a Ray Path Extending from the Transmitter to the Receiver
 (MI_Metadata)
    fileIdentifier:  gov.noaa.ngdc.stp.ionosphere:G00566
    language:  eng; USA
    characterSet:  (MD_CharacterSetCode) utf8
    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  Rob Redmon
    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)
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  Calculations of the Total Number of Electrons Along a Ray Path Extending from the Transmitter to the Receiver
            date:  (CI_Date)
                date:  1965-01-01
                dateType:  (CI_DateTypeCode) publication
            edition:  First
            citedResponsibleParty:  NCEI (publisher)
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                role:  (CI_RoleCode) originator
            citedResponsibleParty:  (CI_ResponsibleParty)
                positionName: (withheld)
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: http://www.ngdc.noaa.gov/stp/iono/ionohome.html
                        protocol:  http
                        name:  Ionospheric Data
                        description:  Home page
                        function:  (CI_OnLineFunctionCode) information
                role: (inapplicable)
        abstract:  Ionospheric Total Electron Content (TEC) is the total number of electrons in a column of unit cross section extending from the transmitter to the receiver. TEC is calculated from observations of the rotation of a polarized signal (faraday rotations) transmitted from the satellite. There are several specific techniques for obtaining TEC by using Faraday rotation. Estimates of accuracy for these data range from 2 percent to 30 percent, depending on the technique and the validity of assumptions for the particular observational conditions. These data consist of publications or computer printouts. Listed below are the available stations. The dates may not be inclusive. Ahmedabad 196411-196712 Bangkok 196411-196612 Delhi 196410-196612 (Explorer 22) Report 32 196410-196512 Report 33 196601-196612 Report 66 196506-196709 (Explorer 27) Lunping 197703-198312 (Some of these data are available in digital form.) Hamilton, Mass. 196801-196812 (Medians only.) Hamilton, Mass. 196711-197212 Hawaii 196409-197312 (only plots) Haifa (Israel) 198103-198303 Fort Monmouth 198302-198303 Florence(Italy) 196401-196606 Puerto Rico 197601-197603 San Jose 196412-196512 Dos Campos Slough 197511-197607 Tucuman 197606-197610 Urbana, Ill. 196712-197012 Val-Joyeux 196505-196712 (Solar times used. Area is from 40-52N and 7E-3W.)
        purpose:  Transmitter/Receiver Path Research
        status:  (MD_ProgressCode) underDevelopment
        pointOfContact:  Rob Redmon
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) monthly
        descriptiveKeywords:  (MD_Keywords)
            keyword:  EARTH SCIENCE > SOLAR PHYSICS > Solar Energetic Particles > Particle Density
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  NASA/GCMD Earth Science Keywords
                date: (unknown)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Space Physics > Ionospheric Science
            keyword:  Total Electron Content
            keyword:  TEC
            keyword:  Faraday Rotations
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Uncontrolled Keywords
                date: (unknown)
        descriptiveKeywords:  WDS Project Keyword
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Global
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  NASA/GCMD Location Keywords
                date: (unknown)
        descriptiveKeywords:  Data Center Keywords
        resourceConstraints:  (MD_Constraints)
            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:  -180.000000
                eastBoundLongitude:  180.000000
                southBoundLatitude:  -90.000000
                northBoundLatitude:  90.000000
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  1964-10-01
                    endPosition:  1983-12-31
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    distributionInfo:  (MD_Distribution)
        distributionFormat:  (MD_Format)
            name:  ASCII
            version: (unknown)
        distributor:  (MD_Distributor)
            distributorContact:  Rob Redmon
            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  None
                orderingInstructions:  Ordering Instructions: Please contact ionosphere.ngdc@noaa.gov Custom Order Process: Contact data center for information
        transferOptions:  (MD_DigitalTransferOptions)
            onLine:  (CI_OnlineResource)
                linkage: http://www.ngdc.noaa.gov/stp/iono/ionohome.html
                protocol:  http
                name:  Ionospheric Data
                description:  Home page
                function:  (CI_OnLineFunctionCode) information
            onLine:  (CI_OnlineResource)
                linkage: http://www.ngdc.noaa.gov/stp/iono/ionohome.html
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    dataQualityInfo:  NCEI repository history
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    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 2012-10-10T11:10:06.079-06:00
        maintenanceNote:  This record was automatically modified on 2015-09-18 to include references to NCEI where applicable.
        contact:  Anna Milan
        contact:  Rob Redmon