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Metadata Identifier: gov.noaa.ngdc.mgg.geophysics:G01434

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 Mexico Terrain Corrected Free Air Anomalies (97) This 2' gravity anomaly grid for Mexico, North-Central America and the Western Caribbean Sea is NOT the input data set used in the development of the MEXICO97 model. This gravity grid represents one million gravity measurements held in the NGS gravity database as of March 1997. The data used in this grid have NOT been augmented by gravity data contributions from NGA (former National Imagery and Mapping Agency), but have been augmented by 2'x2' satellite-altimeter-derived gravity anomalies computed by Sandwell and Smith (1997). Please note that the MEXICO97 geoid model does contain the NGA (former National Imagery and Mapping Agency) contributions. Large data gaps south of 20 degrees North latitude were filled with15'x15' gravity values derived from the EGM96 global geopotential model. The gravity values are based on the International Gravity Standardization Net 1971 (IGSN71). The geoid heights are referred to the Geodetic Reference System 1980 (GRS80) ellipsoid, centered at the origin of the International Terrestrial Reference Frame 1994 (ITRF94(1996.0)). Additional information is available at:http://www.ngs.noaa.gov
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
2 Mexico Terrain Corrected Free Air Anomalies (97)
    1999-01-01
1 GCMD Data Center Keywords NASA/GCMD Data Center Keywords
    2015-03-01
    1995-04-24
1 NASA/GCMD Science Keywords NASA/Global Change Master Directory (GCMD) Earth Science Keywords
    2007-04
1 Uncontrolled Keywords
    Unresolved Xlinks
    GCMD Location Keywords at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:descriptiveKeywords[4]/gmd:MD_Keywords[1]/gmd:thesaurusName[1]
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    CI_Series

    none found
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    CI_ResponsibleParty

    Count Component Individual Organization Position Email Role Linkage
    1 User Services (publisher) publisher
    1 User Services (originator) originator
    1 Anna Milan Anna Milan DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Metadata Specialist Anna.Milan@noaa.gov pointOfContact
    1 GCMD User Support Office NASA GCMD User Support Office gcmduso@gcmd.gsfc.nasa.gov publisher 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/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Susan.McLean@noaa.gov pointOfContact
    1 Susan Mclean (processor) Susan McLean DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Susan.McLean@noaa.gov processor
    Unresolved Xlinks
    Brian Meyer at: /gmi:MI_Metadata/gmd:contact[1]
    NCEI (publisher) at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:citation[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[1]
    User Services (publisher) at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:citation[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[2]
    User Services (originator) at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:citation[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[3]
    GCMD Valids at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:descriptiveKeywords[5]/gmd:MD_Keywords[1]/gmd:thesaurusName[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[2]
    User Services at: /gmi:MI_Metadata/gmd:distributionInfo[1]/gmd:MD_Distribution[1]/gmd:distributor[1]/gmd:MD_Distributor[1]/gmd:distributorContact[1]
    National Geodetic Survey at: /gmi:MI_Metadata/gmd:dataQualityInfo[2]/gmd:DQ_DataQuality[1]/gmd:lineage[1]/gmd:LI_Lineage[1]/gmd:source[1]/gmd:LI_Source[1]/gmd:sourceCitation[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[1]
    Brian Meyer at: /gmi:MI_Metadata/gmd:metadataMaintenance[1]/gmd:MD_MaintenanceInformation[1]/gmd:contact[2]
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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
    1 http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso GCMD Feedback Form Have a Comment for the GCMD? information
    1 http://www.ngdc.noaa.gov/mgg/fliers/se-0703.html
    1 http://www.ngdc.noaa.gov/mgg/gravity/1999/document/html/tablegri.html
    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 -121 -73 35 12
    1
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    EX_GeographicBoundingBox

    Count Component West East North South
    1 -121 -73 35 12
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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 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

    Unresolved Xlinks
    MSL at: /gmi:MI_Metadata/gmd:referenceSystemInfo[1]
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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 691
    1 column 1441
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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 grid value Value, in milligals of an observed gravity station value, after various corrections have been applied to the value.
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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 Mexico Terrain Corrected Free Air Anomalies (97) Source Contribution: Gravity survey data Source Type: varies
    National Geodetic Survey at Xpath: /gmi:MI_Metadata/gmd:dataQualityInfo[2]/gmd:DQ_DataQuality[1]/gmd:lineage[1]/gmd:LI_Lineage[1]/gmd:source[1]/gmd:LI_Source[1]/gmd:sourceCitation[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[1]
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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
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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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