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    • Mexico Terrain Corrected Free Air Anomalies (97)

    Metadata Updated: October 18, 2024

    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

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date September 25, 2017
    Metadata Created Date October 18, 2024
    Metadata Updated Date October 18, 2024
    Reference Date(s) January 1, 1999 (publication)
    Frequency Of Update irregular

    Metadata Source

    Harvested from NGDC MGG Geophysics

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date September 25, 2017
    Metadata Created Date October 18, 2024
    Metadata Updated Date October 18, 2024
    Reference Date(s) January 1, 1999 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ngdc.mgg.geophysics:G01434
    Access Constraints Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., Use Constraints: If you use this data, please cite the National Geophysical Data Center and the originator of the data., Access Constraints: None
    Bbox East Long -73
    Bbox North Lat 35
    Bbox South Lat 12
    Bbox West Long -121
    Coupled Resource
    Frequency Of Update irregular
    Harvest Object Id b1978d67-7605-46b2-ad5c-c5768f940b91
    Harvest Source Id 80dfcf5d-5e08-457e-83e4-cfc696e378bc
    Harvest Source Title NGDC MGG Geophysics
    Licence
    Lineage
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-121.0, 12.0], [-73.0, 12.0], [-73.0, 35.0], [-121.0, 35.0], [-121.0, 12.0]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::5715
    Spatial Harvester True

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