Gravity for the Redefinition of the American Vertical Datum (GRAV-D) Data Products
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
6 resources available
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NCEI Dataset Landing Page
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GRAV-D Project Homepage - National Geodetic Survey
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GRAV-D Data Products - National Geodetic Survey
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Contact NCEI
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Airborne Gravity Data - Gravity for the Redefinition of the American Vertical Datum (GRAV-D)
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Global Change Master Directory (GCMD) Keywords
TEXT/HTML
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{ "fn": "NOAA National Centers for Environmental Information", "@type": "vcard:Contact", "hasEmail": "mailto:ncei.info@noaa.gov" } |
| describedByType | application/octet-steam |
| 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. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "NCEI Dataset Landing Page", "accessURL": "https://doi.org/10.25921/cjc9-bh63", "mediaType": "text/html", "description": "Landing page for the dataset.", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "GRAV-D Project Homepage - National Geodetic Survey", "format": "HTML", "mediaType": "text/html", "description": "NGS home page of the GRAV-D Project.", "downloadURL": "https://geodesy.noaa.gov/GRAV-D/index.shtml", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "GRAV-D Data Products - National Geodetic Survey", "format": "HTML", "mediaType": "text/html", "description": "Available data include airborne and terrestrial survey information, gravity data, and gravity-based geoids or datums.", "downloadURL": "https://geodesy.noaa.gov/GRAV-D/data_products.shtml", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "Contact NCEI", "accessURL": "https://www.ncei.noaa.gov/contact", "mediaType": "text/html", "description": "Contact NCEI for more information about the archived data. Requests for data are subject to NCEI order fulfillment constraints.", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "Airborne Gravity Data - Gravity for the Redefinition of the American Vertical Datum (GRAV-D)", "accessURL": "https://www.fisheries.noaa.gov/inport/item/39698", "mediaType": "text/html", "description": "Related NOAA National Ocean Service metadata record (InPort).", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "Global Change Master Directory (GCMD) Keywords", "accessURL": "https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords", "mediaType": "text/html", "description": "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.", "describedByType": "application/octet-stream" } ] |
| identifier | https://data.noaa.gov/waf/NOAA/NESDIS/NGDC/Collection/iso/xml/GRAV-D_Collection.xml |
| issued | 2012-01-01T00:00:00.000+00:00 |
| keyword |
[ "Earth Science > Solid Earth > Geodetics/Gravity > Gravity", "INFOTERRA > Subject disciplines > Geophysics > Geophysics", "NGDA", "National Geospatial Data Asset", "Elevation Theme", "ICSU-WDS > International Council for Science - World Data System", "Geographic Region > Global Ocean", "Vertical Location > Sea Floor", "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" ] |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2017-09-01T00:00:00.000+00:00 |
| publisher |
{ "name": "NOAA National Centers for Environmental Information", "@type": "org:Organization" } |
| references |
[ "https://www.fisheries.noaa.gov/inport/item/39698" ] |
| rights | otherRestrictions |
| spatial | 146.0,-14.5,-180.0,72.0 |
| temporal | 2012-01-01T00:00:00+00:00/2023-12-31T00:00:00+00:00 |
| theme |
[ "geospatial" ] |
| title | Gravity for the Redefinition of the American Vertical Datum (GRAV-D) Data Products |
