National Geophysical Data Center (NGDC), NOAA Satellite and Information Service

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GEOSAT44: High-Accuracy, High-Resolution Gravity

This satellite altimeter data base contains precise geoid and gravity anomaly profiles which were constructed from the average of 44 repeat cycles of Geosat. The data are contained in two files: (1) geo44asc.bin (987755 records) contains the ascending profiles which run southeast to northwest between 72S and 72N, and (2) geo44des.bin (991313 records) contains all of the descending profiles. The data parameters in addition to time and location are geoid height, gravity anomaly and uncertainty in gravity anomaly. For additional information see geosat.txt in this directory.

Use Constraints: If you use this data, please cite the National Geophysical Data Center and the originator of the data.

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    Distribution Formats
    • Binary
    Distributor DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center
    Point of Contact Susan McLean
    DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    (303) 497-6478
    Susan.McLean@noaa.gov
    Documentation links not available.
    Originator
    • DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center
    Publisher
    • DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center
    Date(s)
    • publication: 1999-01-01
    Edition: 1999 Edition
    Dataset Progress Status Complete
    Data Update Frequency: Irregular
    Purpose: To provide easy access to global and regional gravity data and related models for scientific studies.
    Use Limitations
    • 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.
    Time Period:  to 
    Spatial Reference System: urn:ogc:def:crs:EPSG::5715
    Spatial Bounding Box Coordinates:
    N: 72.055
    S: -72.055
    E: 180
    W: -180
    Spatial Coverage Map:
    Themes
    • 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
    • Absolute Gravity
    • Bouguer Gravity
    • Free Air Anomaly
    • Gridded Gravity
    • Land Gravity
    • Observed Gravity
    • WDC/SEG, BOULDER>World Data Center for Solid Earth Geophysics, Boulder
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    Places
    • Global
    • North America
    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
    Source Datasets
    • GEOSAT44: High-Accuracy, High-Resolution Gravity
      • Description of Source: Source Contribution: Gravity survey data Source Type: varies
      • Temporal extent used:   to 
    Lineage Statement Lineage statement not available.
    Processor
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    Processing Steps
    • All data was processed by the source before being forwarded to the National Geophysical Data Center

    Metadata Last Modified: 2014-11-20

    For questions about the information on this page, please email: Brian.Meyer@noaa.gov