Gravity for the Redefinition of the American Vertical Datum (GRAV-D) Data Products

Description

Within the NOAA National Ocean Service (NOS), the NOAA National Geodetic Survey (NGS) has a federal mandate to provide accurate positioning, including heights, to all federal non-military mapping activities in the USA. In 2007, the NGS embarked on the Gravity for the Redefinition of the American Vertical Datum (GRAV-D) Project, one of the most ambitious projects in the history of the agency. The gravity-based vertical datum resulting from this project is accurate at the 2 cm level where possible for much of the country. Available data include airborne and terrestrial survey information, gravity data, and gravity-based geoids or datums.

Resources

Name Format Description Link
21 NGS home page of the GRAV-D Project. https://geodesy.noaa.gov/GRAV-D/index.shtml
21 Available data include airborne and terrestrial survey information, gravity data, and gravity-based geoids or datums. https://geodesy.noaa.gov/GRAV-D/data_products.shtml
0 Contact NCEI for more information about the archived data. Requests for data are subject to NCEI order fulfillment constraints. https://www.ncei.noaa.gov/contact
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 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. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
0 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. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
0 Related NOAA National Ocean Service metadata record (InPort). https://www.fisheries.noaa.gov/inport/item/39698
0 Landing page for the dataset. https://doi.org/10.25921/cjc9-bh63
0 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. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
0 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. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords

Tags

  • vertical location
  • international council for science - world data system
  • infoterra
  • geophysics
  • nesdis
  • icsu-wds
  • national geospatial data asset
  • national geophysical data center
  • noaa
  • global ocean
  • gravity
  • elevation theme
  • u.s. department of commerce
  • ngda
  • earth science
  • geographic region
  • doc/noaa/nesdis/ngdc
  • solid earth
  • doc/noaa/nesdis/ncei
  • sea floor
  • subject disciplines
  • geodetics/gravity
  • national centers for environmental information

Topics

Categories