The GEBCO_2021 Grid - A continuous terrain model of the global oceans and land
The GEBCO_2021 Grid is a global continuous terrain model for ocean and land with a spatial resolution of 15 arc seconds. This is the third GEBCO grid produced through the framework of the Nippon Foundation-GEBCO Seabed 2030 Project. The aim of the project is to map the global sea floor by 2030. For the 2021 release of the GEBCO grid, it is estimated that 20.6% of seafloor has now been mapped, this is an increase from 19% for the previous release, GEBCO_2020.
The GEBCO_2021 Grid uses as a ‘base’ Version 2.2 of the SRTM15+ data set between latitudes of 50° South and 60° North. This data set is a fusion of land topography with measured and estimated seafloor topography. The base grid has been augmented with the gridded bathymetric data sets developed by the four Seabed 2030 Regional Centers to produce the global GEBCO grid.
The primary GEBCO_2021 grid contains land and ice surface elevation information - as provided for previous GEBCO grid releases. In addition, for the 2021 release, we have made available a version with under-ice topography/bathymetry information for Greenland and Antarctica.
GEBCO's aim is to provide the most authoritative publicly-available bathymetry of the world's oceans. It operates under the joint auspices of the International Hydrographic Organization (IHO) and the Intergovernmental Oceanographic Commission (IOC) (of UNESCO).
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Citation proposal
(2020) . The GEBCO_2021 Grid - A continuous terrain model of the global oceans and land. https://services.mspdata.eu:/geonetwork/srv/api/records/7b032e0a-515d-4685-b546-73995bea6287 |
Simple
- Date ( Publication )
- 2020-04-30
- Date ( Creation )
- 2020-01-01
- Identifier
- DTM_GEBCO_2020
- Credit
- GEBCO
- Status
- Completed
Point of contact
- Thèmes Sextant ( Theme )
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- /Physical Environment
- GEMET - INSPIRE themes, version 1.0 ( Theme )
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- Elevation
- Keywords
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- Southern Ocean, Indian Ocean, Arctic Ocean, Atlantic Ocean, Pacific Ocean, World, elevation, oceans
- Mission Atlantic - BODC Parameters ( Theme )
-
- /Marine geology/Gravity, magnetics and bathymetry
- Mission Atlantic - Case Studies ( Theme )
-
- Mission Atlantic - Data type (DMP) ( Theme )
-
- Spatial data products
- Mission Atlantic - Work Package ( Theme )
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- WP6 Dynamics of ecosystem state and resources , WP4 Benthic Mapping
- Ocean Hackathon - Ville ( Place )
-
- Boulogne-sur-Mer , Brest , Cádiz , Cape Town , Cardiff , Fort-de-France , Champs-sur-Marne , Mexico , La Rochelle , Rostock , Nouméa , San Francisco , Rimouski , Santiago , Toulon , Split , Sète
- Mission Atlantic - Resources ( Theme )
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- Data
- Other constraints
- The GEBCO Grid should NOT be used for navigation or for any other purpose involving safety at sea.
- Spatial representation type
- Grid
- Distance
- 15 Arc second
- Metadata language
- English
- Character set
- UTF8
- Topic category
-
- Oceans
))
- Number of dimensions
- 2
- Dimension name
- Vertical
- Dimension name
- Time
- Cell geometry
- surface
- Transformation parameter availability
- false
- Distribution format
-
- ( )
- OnLine resource
- SeaBed 2030 website
- OnLine resource
- Download link on gebco website
- OnLine resource
- Download data for user-defined areas
- OnLine resource
-
GEBCO_LATEST_2
GEBCO Grid colour-shaded for elevation
- Hierarchy level
- Dataset
Conformance result
- Date ( Publication )
- 2010-12-08
- Explanation
- See the referenced specification
Metadata
- File identifier
- 7b032e0a-515d-4685-b546-73995bea6287 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2021-12-08T11:03:30
- Metadata standard name
- ISO 19115:2003/19139 - SEXTANT
- Metadata standard version
- 1.0