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
  • Use Constraints: If you use this data, please cite the National Geophysical Data Center and the originator of the data.
  • ID not available.
gov.noaa.ngdc.mgg.geophysics:G01434
Other Access
Distribution Formats
  • Binary
Ordering Instructions Ordering Instructions: Price information is available upon request. Prepay by check, money order or bank card. There is a standard handling charge, with additional costs for special handling. Orders may be placed via fax, email, regular mail or telephone. Custom Order Process: Contact Data Center for information.
Distributor User Services
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
303-497-6826
ngdc.info@noaa.gov
Dataset No POCs available for this dataset
Time Period Unknown to Unknown
Spatial Reference System urn:ogc:def:crs:EPSG::5715
Spatial Bounding Box Coordinates
N: 35
S: 12
E: -73
W: -121
Spatial Coverage Map
Documentation links not available.
Publication Dates
  • publication: 1999-01-01
Edition 1999 Edition
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency Irregular
Purpose To provide easy access to global and regional gravity data and related models for scientific studies.
Dataset Citation
  • Use Constraints: If you use this data, please cite the National Geophysical Data Center and the originator of the data.
Originators
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Publishers
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Control Surveys
  • EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Gravitational Field
  • EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Gravity
  • EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Reference Systems
  • EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Satellite Orbits
Uncontrolled Keywords
  • Absolute Gravity
  • Bouguer Gravity
  • Free Air Anomaly
  • Gridded Gravity
  • Land Gravity
  • Observed Gravity
Data Center keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Place keywords Global Change Master Directory (GCMD) Location Keywords
  • Ocean>Atlantic Ocean>North Atlantic Ocean>Caribbean Sea
  • Continent>North America>Mexico
Project keywords Global Change Master Directory (GCMD) Project Keywords
  • ICSU-WDS > International Council for Science - World Data System
Use Constraints
  • Use Constraints: If you use this data, please cite the National Geophysical Data Center and the originator of the data.
Access Constraints
  • Access Constraints: None
Fees
  • Depends on the data set
Lineage information for: dataset
Processing Steps
  • All data were processed by the source before being forwarded to the National Geophysical Data Center
Source Datasets
  • Mexico Terrain Corrected Free Air Anomalies (97)
    Last Modified: 2017-09-25
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