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 |
|---|---|---|---|
| NCEI Dataset Landing Page | Unknown | Landing page for the dataset. | Open resource |
| GRAV-D Data Products - National Geodetic Survey | HTML | Available data include airborne and terrestrial survey information, gravity data, and gravity-based geoids or datums. | Open resource |
| GRAV-D Project Homepage - National Geodetic Survey | HTML | NGS home page of the GRAV-D Project. | Open resource |
| Global Change Master Directory (GCMD) Keywords | Unknown | 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. | Open resource |
| Global Change Master Directory (GCMD) Keywords | Unknown | 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. | Open resource |
| Global Change Master Directory (GCMD) Keywords | Unknown | 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. | Open resource |
| Global Change Master Directory (GCMD) Keywords | Unknown | 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. | Open resource |
| Airborne Gravity Data - Gravity for the Redefinition of the American Vertical Datum (GRAV-D) | Unknown | Related NOAA National Ocean Service metadata record (InPort). | Open resource |
| Contact NCEI | Unknown | Contact NCEI for more information about the archived data. Requests for data are subject to NCEI order fulfillment constraints. | Open resource |
| NCEI Contact Information | Unknown | Information for contacts at NCEI. | Open resource |
Tags
- doc/noaa/nesdis/ncei
- doc/noaa/nesdis/ngdc
- earth science
- elevation theme
- geodetics/gravity
- geographic region
- geophysics
- global ocean
- gravity
- icsu-wds
- infoterra
- international council for science - world data system
- national centers for environmental information
- national geophysical data center
- national geospatial data asset
- nesdis
- ngda
- noaa
- sea floor
- solid earth
- subject disciplines
- u.s. department of commerce
- vertical location