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Metadata Identifier: gov.noaa.ngdc.stp.solar:G00533

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 Solar Magnetic Field The solar magnetic field is approximately a dipole at high latitudes and is highly irregular at middle and low latitudes. The field apparently gives rise to a coupling between solar differential rotation and the 11-year cycle of solar activity; the field also governs the evolution of individual active regions. Field magnitudes range from a few gauss in quiet regions to a few thousand gauss in some active regions. Longitudinal (line-of-sight) components of the solar magnetic field are measured by magnetographs which use the Zeeman effect. The solar magnetic fields are photographically or computer drawn contours of the solar longitudinal magnetic field distribution across the whole sun at different levels of nanotesla (gauss). The computer plotted contours use solid lines for positive and dotted lines for negative field polarities. The polarities on the photographs are indicated by bright areas as positive and dark areas as negative. The data also can be drawings of individual sunspot regions with coordinates, polarity and intensity in nanotesla of each spot indicated. The National Geophysical Data Center (NGDC) archives (from about 14 stations): 1) once-daily (Scout) measurements of sunspot magnetic fields. These may be marked-up sunspot maps, large-scale magnetic maps or tables. If sunspot maps, the magnetic field intensity and polarity is indicated. If tables, the heliographic position of the spot is given followed by the magnetic classification, or the maximum strength and polarity, or both; 2) solar magnetograms of the whole disk, both Kitt Peak and Mt. Wilson daily magnetograms appear in Solar-Geophysical Data (SGD), a monthly NGDC publication; 3) data on the mean solar magnetic field from sun-as-a-star integrated light measurements. Stanford daily data appear in SGD. Mean daily measurements are reported in monthly tables.
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
1 NASA/GCMD Data Center Keywords
    1 NASA/GCMD Location Keywords
      1 GCMD Science Keywords NASA/Global Change Master Directory (GCMD) Earth Science Keywords
      • 2007-04
      1 Solar Magnetic Field
      • 1931
      G00533
      1 Uncontrolled Keywords
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        CI_Series

        Count Component Name Issue Identification Page
        1 Solar Geophysical Data (SGD) International Standard Serial Numbers (ISSN) 'ISSN 0038-0911 Solar Geophysical Data (SGD) Published Monthly'
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        CI_ResponsibleParty

        Count Component Individual Organization Position Email Role Linkage
        1 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 resourceProvider http://gcmd.gsfc.nasa.gov/Resources/valids/archives/keyword_list.html
        1 National Geophysical Data Center (comp) originator
        2 Solar Data Manager DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce solar.ngdc@noaa.gov pointOfContact
        1 Solar Data Manager DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce solar.ngdc@noaa.gov distributor
        1 Solar Data Manager DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce solar.ngdc@noaa.gov custodian
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        CI_OnlineResource

        Count Component Linkage Name Description Function
        1 ftp://ftp.ngdc.noaa.gov/STP/IONOSPHERE/
        1 http://gcmd.gsfc.nasa.gov/Resources/valids/archives/keyword_list.html GCMD Keywords, Version 6.0.0.0.0 Thesuarus for earth science keywords and associated directories hosted and maintained by NASA. information
        1 http://www.ngdc.noaa.gov/stp
        1 http://www.ngdc.noaa.gov/stp/
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        MD_Identifier or RS_Identifier

        Count Component Code
        1 G00533
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        EX_Extent

        Bounding Box Temporal Extent
        Count Component Description West East North South Start End
        1 1931-01-01
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        EX_GeographicBoundingBox

        none found
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        EX_TemporalExtent

        Count Component Start End
        1 1931-01-01
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        MD_Format

        Count Component Name Version specification
        1 ASCII
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        MD_Medium

        Count Component Name mediumFormat mediumNote
        1 tar
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        MD_Constraints

        Count Component Use Limitation
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        MD_ReferenceSystem

        none found
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        MD_GridSpatialRepresentation

        none found
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        MD_Georeferenceable or MI_Georeferenceable

        none found
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        MD_Georectified or MI_Georectified

        none found
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        MD_Dimension

        none found
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        MD_CoverageDescription or MI_CoverageDescription

        none found
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        MD_Band or MI_Band

        none found
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        MI_RangeElementDescription

        none found
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        MD_AggregateInformation

        none found
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        LE_Source or LI_Source

        none found
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        LE_ProcessStep or LI_ProcessStep

        none found
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        MI_Operation

        none found
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        MI_Platform

        none found
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        MI_Instrument

        none found
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