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Metadata Identifier: gov.noaa.ngdc.mgg.geophysics:G01352

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 Land and Marine Gravity Data on CD-ROM - 1999 Edition The Land and Marine Gravity 1999 Edition 2-volume CD-ROM set contains observed and derived land and marine gravity data contributed by many national and international organizations, from both the academic and government sectors. Approximately 70 percent of the data are observed values--regional station data collections (separated primarily by contributors) and absolute gravity measurements. Grids and other derived summary data sets represent another 30 percent of the data. In general, data record parameters include Latitude, Longitude, Observed Gravity and Elevation, Bouguer Gravity Anomaly (land), and Free- air Anomaly (ocean). In all cases, each data set contains associated documentation, including source contributor. Data are in binary format with ancillary files for conversion of the data to ASCII. On the Land Gravity CD- ROM, data sets are grouped into directories based on type: Absolute, Grids, Regional, Global, and Correlative (Geoids). The Marine Gravity CD-ROM has gravity data from 1,555 ocean surveys grouped by regional location of the survey. Directories exist for the Gulf of Mexico and Caribbean Sea, Indian Ocean, Mediterranean and Black Seas, North Pacific, South Pacific, North Atlantic and South Atlantic. Surveys which cross ocean areas are included in both regional directories. The marine gravity data were collected from ships operated between the years 1961 and 1996. The Marine gravity surveys are provided in a modified MGD77 format containing survey location, observed gravity and free air-anomaly. The 1999 Edition of Gravity Data is Year 2000 compliant. All date values are full 4-digit years. The GeoVu geophysical data browse and visualization software is also Year 2000 compliant. The compliance is inherent because there are no built-in date manipulation routines. However, GeoVu is written to run on specific platforms and operating systems. There is no guarantee that GeoVu will operate on platforms other than those indicated in the Software documentation.
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
1 Land and Marine Gravity Data on CD-ROM - 1999 Edition
  • 1999-04-05
1 GCMD Data Center Keywords NASA/GCMD Data Center Keywords
    1 GCMD Location Keywords NASA/GCMD Location Keywords
      1 NASA/GCMD Science Keywords NASA/Global Change Master Directory (GCMD) Earth Science Keywords
      • 2007-04
      1 Uncontrolled Keywords
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        CI_Series

        none found
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        CI_ResponsibleParty

        Count Component Individual Organization Position Email Role Linkage
        2 GCMD Valids custodian http://gcmd.nasa.gov/learn/keyword_list.html
        2 Brian Meyer Brian Meyer DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Brian.Meyer@noaa.gov pointOfContact
        1 User Services (publisher) DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center User Services ngdc.info@noaa.gov publisher
        1 User Services (originator) DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center User Services ngdc.info@noaa.gov originator
        1 User Services DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center User Services ngdc.info@noaa.gov distributor
        1 National Geodetic Survey DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce ngs.cors@noaa.gov custodian
        2 GCMD User Support Office NASA GCMD User Support Office gcmduso@gcmd.gsfc.nasa.gov custodian http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
        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 Susan Mclean Susan McLean DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Susan.McLean@noaa.gov pointOfContact
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        CI_OnlineResource

        Count Component Linkage Name Description Function
        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
        2 http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso GCMD Feedback Form Have a Comment for the GCMD? information
        2 GCMD Keyword Page http://gcmd.nasa.gov/learn/keyword_list.html GCMD Keywords Page This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions. information
        1 http://www.ngdc.noaa.gov/mgg/gravity/1999cd.html
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        MD_Identifier or RS_Identifier

        none found
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        EX_Extent

        Bounding Box Temporal Extent
        Count Component Description West East North South Start End
        1 -180.000000 180.000000 90.000000 -90.000000 1930-01-01
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        EX_GeographicBoundingBox

        Count Component West East North South
        1 -180.000000 180.000000 90.000000 -90.000000
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        EX_TemporalExtent

        Count Component Start End
        1 1930-01-01
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        MD_Format

        Count Component Name Version specification
        1 Binary
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        MD_Medium

        Count Component Name mediumFormat mediumNote
        1 cdRom iso9660
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        MD_Constraints

        Count Component Use Limitation
        1 NOAA Disclaimer 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.
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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

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        MD_Dimension

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        MD_CoverageDescription or MI_CoverageDescription

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        MD_Band or MI_Band

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        MI_RangeElementDescription

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        MD_AggregateInformation

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        LE_Source or LI_Source

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        LE_ProcessStep or LI_ProcessStep

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        MI_Operation

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        MI_Platform

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        MI_Instrument

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