Metadata Identifier: gov.noaa.ngdc.mgg.geophysics:G01497

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 DNAG Gravity Data The Decade of North American Geology (DNAG) gravity grid values, spaced at 6 km, were used to produce the Gravity Anomaly Map of North America (1987; scale 1:5,000,000). Considerable caution should be exercised when using these gridded data in regions of sparse coverage (for example, deep oceanic areas). The spatial distribution of the original data from which the grid was generated is shown on sheet 5 of the published map. Note: There are no gridded data values for Mexico.
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
2 DNAG Gravity Data
    1999-01-01
1 GCMD Data Center Keywords Global Change Master Directory (GCMD) Data Center Keywords
    2020-01-09
1 GCMD Location Keywords Global Change Master Directory (GCMD) Location Keywords
    2020-01-09
1 GCMD Project Keywords Global Change Master Directory (GCMD) Project Keywords
    2020-01-09
1 NASA/GCMD Science Keywords Global Change Master Directory (GCMD) Science Keywords
    2020-01-09
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
    3 Brian Meyer Brian Meyer NOAA National Centers for Environmental Information Brian.Meyer@noaa.gov pointOfContact
    1 User Services (publisher) DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce User Services ngdc.info@noaa.gov publisher
    1 User Services (originator) DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce User Services ngdc.info@noaa.gov originator
    1 User Services DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce User Services ngdc.info@noaa.gov distributor
    4 GCMD Landing Page NASA Goddard Space Flight Center, Earth Science Data and Information System custodian https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
    1 NCEI (publisher) NOAA National Centers for Environmental Information publisher
    1 Anna Milan NOAA National Centers for Environmental Information Metadata Specialist editor
    1 The Geological Society of America gsaservice@geosociety.org originator
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    CI_OnlineResource

    Count Component Linkage Name Description Function
    4 https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords 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. information
    1 https://www.ngdc.noaa.gov/mgg/fliers/se-0703.html
    1 https://www.ngdc.noaa.gov/mgg/gravity/1999/document/html/tablegri.html
    1 https://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
    1 170.00000 -10.75 81.16667 5.16667
    1
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    EX_GeographicBoundingBox

    Count Component West East North South
    1 170.00000 -10.75 81.16667 5.16667
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    EX_TemporalExtent

    Count Component Start End
    2
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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
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    MD_ReferenceSystem

    none found
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    MD_GridSpatialRepresentation

    Count Component Number of Dimensions Cell Geometry Code
    1 2 area
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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

    Count Component Name Code Size
    1 row 1430
    1 column 1495
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    MD_CoverageDescription or MI_CoverageDescription

    Count Component Attribute Description Content Type
    1
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    MD_Band or MI_Band

    Count Component Identifier Descriptor
    1 Gravity Anomaly Value of estimated gravity
    1 grid_origin The location of the starting point of a grid, e.g. lowerleft, upperleft
    1 grid_sequence The sequence of the grid values, some examples are:Top to bottom then rightTop to bottom then leftLeft to right then upRight to left then down
    1 grid_cell_registration The positional information associated with registration of a grid cell, e.g.:Center of cellBottom left cornerBottom right cornerTop left cornerTop right corner
    1 missing_flag A numeric code indicating missing data values
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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

    Count Component Title Date Description
    1 DNAG Gravity Data Source Contribution: Gridded gravity data Source Type: varies
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    LE_ProcessStep or LI_ProcessStep

    Count Component DateTime Description
    1 All data were processed by the source before being forwarded to the National Geophysical Data Center
    1 2015-04-22T00:00:00 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.
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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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