Description
Gravity for the Re-definition of the American Vertical Datum (GRAV-D) is a project initiated by NOAA's National Geodetic Survey to collect and monitor gravity data suitable for the re-definition of the vertical datum for at least the United States and territories. Airborne gravity data will be collected from 2008-2023, processed, and released periodically in geographic blocks. Each block is comprised of one or more surveys. The data will be available at https://geodesy.noaa.gov/GRAV-D/data_products.shtml in ASCII text format. Some data collection has and will be done in conjunction with partners, such as the US Geological Survey, National Geospatial-Intelligence Agency, Bureau of Land Management, and the Naval Research Laboratory.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| Citation URL | Unknown | Online Resource | Open resource |
| Citation URL | Unknown | Online Resource | Open resource |
| Citation URL | Unknown | Online Resource | Open resource |
| Citation URL | HTML | Online Resource | Open resource |
| Citation URL | HTML | Online Resource | Open resource |
| Citation URL | HTML | Online Resource | Open resource |
| Full Metadata Record | Unknown | View the complete metadata record on InPort for more information about this dataset. | Open resource |
| Full Metadata Record | Unknown | View the complete metadata record on InPort for more information about this dataset. | Open resource |
| Full Metadata Record | Unknown | View the complete metadata record on InPort for more information about this dataset. | Open resource |
| Full Metadata Record | Unknown | View the complete metadata record on InPort for more information about this dataset. | Open resource |
| NOAA Data Management Plan (DMP) | NOAA Data Management Plan for this record on InPort. | Open resource | |
| NOAA Data Management Plan (DMP) | NOAA Data Management Plan for this record on InPort. | Open resource | |
| NOAA Data Management Plan (DMP) | NOAA Data Management Plan for this record on InPort. | Open resource | |
| NOAA Data Management Plan (DMP) | NOAA Data Management Plan for this record on InPort. | Open resource | |
| NGS_GRAVD_Block_[Block Name]_BETA1.zip | HTML | Interactive web map identifying each GRAV-D Block. WMS- Web Mapping Service. Downloadable zipped file containing data and metadata for an individual GRAV-D block. | Open resource |
| NGS_GRAVD_Block_[Block Name]_BETA1_images.zip | HTML | Interactive web map identifying each GRAV-D Block. WMS- Web Mapping Service. Downloadable zipped file with images depicting the data as free-air disturbance for each GRAV-D Block. There are 2 images with different binning for the color ramps. One is equal-interval, the other is quantile. | Open resource |
| NGS_GRAVD_Block_[Block Name]_BETA1.zip | HTML | Interactive web map identifying each GRAV-D Block. WMS- Web Mapping Service. Downloadable zipped file containing data and metadata for an individual GRAV-D block. | Open resource |
| NGS_GRAVD_Block_[Block Name]_BETA1_images.zip | HTML | Interactive web map identifying each GRAV-D Block. WMS- Web Mapping Service. Downloadable zipped file with images depicting the data as free-air disturbance for each GRAV-D Block. There are 2 images with different binning for the color ramps. One is equal-interval, the other is quantile. | Open resource |
| NGS_GRAVD_Block_[Block Name]_BETA1.zip | HTML | Interactive web map identifying each GRAV-D Block. WMS- Web Mapping Service. Downloadable zipped file containing data and metadata for an individual GRAV-D block. | Open resource |
| NGS_GRAVD_Block_[Block Name]_BETA1_images.zip | HTML | Interactive web map identifying each GRAV-D Block. WMS- Web Mapping Service. Downloadable zipped file with images depicting the data as free-air disturbance for each GRAV-D Block. There are 2 images with different binning for the color ramps. One is equal-interval, the other is quantile. | Open resource |
| Citation URL | Unknown | Online Resource | Open resource |
| http://www.ngs.noaa.gov/GRAV-D/data_products.shtml | HTML | Downloadable Data | Open resource |
| Citation URL | HTML | Online Resource | Open resource |
Tags
- airborne gravity
- aircraft
- aleutian islands
- altitude
- american samoa
- atlantic ocean
- atmosphere
- beechcraft king air e90-a
- beechcraft king air rc-12
- caribbean sea
- central pacific ocean
- cessna citation ii
- cessna conquest
- continent
- data center
- datum
- doc/noaa/nesdis/ngdc
- doc/noaa/nos/ngs
- e90-a
- earth science
- eastern pacific ocean
- ellipsoid height
- environmental satellite
- envisat
- ers-1
- ers-2
- european remote sensing satellite-1
- european remote sensing satellite-2
- galapagos islands
- geodetic
- geodetic control theme
- geodetic/global positioning
- geodetics
- geoid
- geoid characteristics
- geophysical
- geopotential height
- geoss
- ggos
- global earth observation system of systems
- global geodetic observing system
- global positioning system satellites
- goce
- government agencies-u.s. federal agencies
- gps
- gps receivers
- grace
- gravimeters
- gravity
- gravity field and steady-state ocean circulation explorer
- gravity/gravitational field
- gravity recovery and climate experiment
- ground-based observations
- guam
- gulf of america
- gulf of mexico
- gulfstream 1000 (695a)
- gulfstream jet prop commander 1000 (695a)
- hawaiian islands
- height modernization
- imu
- inertial measurement unit
- jason-1
- joint altimetry satellite oceanography network - 2
- lacoste-romberg gravity meter
- location
- lockheed wp-3d orion
- lrgm
- marine geophysics
- marine gravity field
- national geodetic survey
- national geophysical data center
- national geospatial data asset
- national ocean service
- national spatial reference system
- navd88
- nesdis
- ngda
- ngdaid47
- ngs metadata library
- noaa
- north america
- north american vertical datum of 1988
- north atlantic ocean
- northern marianas islands
- northern pacific ocean
- nsrs
- ocean
- oceans
- ocean topography experiment
- orthometric height
- ostm/jason-2
- pacific ocean
- pc-12
- pilatus pc-12
- platform
- puerto rico
- rc-12
- solid earth
- spatial reference
- topex/poseidon
- united states of america
- u.s. department of commerce
- vertical
- virgin islands
- virigina
- western pacific ocean
- west virigina
- wp-3d orion
- wp-3 orion