BGS Hosted Metadata
The GEBCO_2019 Grid - a continuous terrain model of the global oceans and land
The GEBCO_2019 Grid is a global continuous terrain model for ocean and land with a spatial resolution of 15 arc seconds. The grid uses as a ‘base’ Version 1 of the SRTM15_plus data set (Sandwell et al). This data set is a fusion of land topography with measured and estimated seafloor topography. It is largely based on version 11 of SRTM30_plus (5). Included on top of this base grid are gridded bathymetric data sets developed by the four Regional Centers of The Nippon Foundation-GEBCO Seabed 2030 Project, and from a number of international and national data repositories and regional mapping initiatives. The GEBCO_2019 Grid represents all data within the 2019 compilation. The compilation of the GEBCO_2019 Grid was carried out at the Seabed 2030 Global Center, hosted at the National Oceanography Centre, UK, with the aim of producing a seamless global terrain model. The majority of the compilation was done using the 'remove-restore' procedure (Smith and Sandwell, 1997; Becker, Sandwell and Smith, 2009 and Hell and Jakobsson, 2011). This is a two stage process of computing the difference between the new data and the ‘base’ grid and then gridding the difference and adding the difference back to the existing ‘base’ grid. The aim is to achieve a smooth transition between the 'new' and 'base' data sets with the minimum of perturbation of the existing base data set. The data sets supplied in the form of complete grids (primarily areas north of 60N and south of 50S) were included using feather blending techniques from GlobalMapper software. The GEBCO_2019 Grid has been developed through the Nippon Foundation-GEBCO Seabed 2030 Project. This is a collaborative project between the Nippon Foundation of Japan and the General Bathymetric Chart of the Oceans (GEBCO). It aims to bring together all available bathymetric data to produce the definitive map of the world ocean floor by 2030 and make it available to all. Funded by the Nippon Foundation, the four Seabed 2030 Regional Centers include the Southern Ocean - hosted at the Alfred Wegener Institute, Germany; South and West Pacific Ocean - hosted at the National Institute of Water and Atmospheric Research, New Zealand; Atlantic and Indian Oceans - hosted at the Lamont Doherty Earth Observatory, Columbia University, USA; Arctic and North Pacific Oceans - hosted at Stockholm University, Sweden and the Center for Coastal and Ocean Mapping at the University of New Hampshire, USA).
Simple
- Alternate title
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British Oceanographic Data Centre record 1048_GEBCO_2019
- Date (Publication)
- 2019-07-17
- Date (Creation)
- 2019-03-13
- Date (Revision)
- 2021-04-21
- Citation identifier
- http://www.bodc.ac.uk/ / EDMED6934
- Point of contact
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Organisation name Individual name Electronic mail address Role British Oceanographic Data Centre
Unknown
Owner British Oceanographic Data Centre
Unknown
Originator British Oceanographic Data Centre
Custodian British Oceanographic Data Centre
Distributor
- Maintenance and update frequency
- As needed
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MEDIN metadata record availability
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INSPIRE themes
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SeaDataNet PDV
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Vertical Coverages
- Access constraints
- Other restrictions
- Other constraints
- No limitations apply
- Other constraints
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Data are freely available
- Use constraints
- Other restrictions
- Other constraints
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No conditions apply
- Spatial representation type
- Text, table
- Language
- English
- Topic category
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- Oceans
))
- Geographic identifier
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Southern Ocean
SeaVoX water bodies 2021-10-28 revision
- Geographic identifier
-
Indian Ocean
SeaVoX water bodies 2021-10-28 revision
- Geographic identifier
-
Arctic Ocean
SeaVoX water bodies 2021-10-28 revision
- Geographic identifier
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Atlantic Ocean
SeaVoX water bodies 2021-10-28 revision
- Geographic identifier
-
Pacific Ocean
SeaVoX water bodies 2021-10-28 revision
- Geographic identifier
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World
SeaVoX water bodies 2021-10-28 revision
- Begin date
- 2019-01-01
- End date
- 2019-01-01
- Unique resource identifier
- urn:ogc:def:crs:EPSG::4326
- Codespace
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OGP
- Distribution format
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Name Version Network Common Data Form
- OnLine resource
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Protocol Linkage Name https://www.gebco.net/data_and_products/gridded_bathymetry_data/ Dataset Web Site
- OnLine resource
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Protocol Linkage Name https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/836f016a-33be-6ddc-e053-6c86abc0788e/ Published dataset - doi:10.5285/836f016a-33be-6ddc-e053-6c86abc0788e
- Hierarchy level
- Dataset
Conformance result
- Title
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COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Date (Publication)
- 2010-12-08
- Explanation
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BODC protocols are based on the Open Archival Information System (OAIS) model enabling BODC to iterate towards compliance with the on-going evolution and development of community requirements including FAIR (Findable,Accessible,Interoperable,Reusable), TRUST (Transparency, Responsibility, User community, Sustainability, Technology) and CARE (Collective Benefit, Authority to Control, Responsibility, Ethics). Data managers quality assure submissions and assemble the metadata necessary for curation. Submissions (as received) are placed in a long-term accession and stored in triplicate across multiple sites. Appropriate data are transferred into a standard internal format with source variable names mapped to controlled vocabularies, documentation assembled, and metadata loaded into BODC databases. Access to these data is through direct request, the BODC website and through partner repositories such as SeaDataNet. Access control is attained by assigning a data policy to each set of data and this policy is used to administer access when data are requested. Discovery metadata is aligned with EU INSPIRE (through MEDIN) and SeaDataNet community standards. Data are converted to open community formats including Ocean Data View ASCII and SeaDataNet NetCDF, with data described using terms from the NERC vocabulary server. BODC submission agreements are documented on the BODC website and customer service is assured with a dedicated requests team that serve data following local regulations including General Data Protection Regulation (GDPR) 2018 and Environmental Information Regulations (EIR) 2004.
- Pass
- Yes
- Statement
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The GEBCO_2019 grid has been generated from bathymetric data sets compiled by the Nippon Foundation-GEBCO Seabed 2030 Grid Compilation Team. The global grid has been assembled from these inputs by the Seabed 2030 Global Center, hosted by the National Oceanography Centre, UK at the British Oceanographic Data Centre (BODC). On behalf of the GEBCO project, BODC make the compilation available for publication through the BODC Published Data Library and the Project website.
Instrument(s) used to collect data: single-beam echosounders; multi-beam echosounders; Global Navigation Satellite System receivers; airgun.
Metadata
- File identifier
- 2d1491f5ecfc521dbc56f64a74750549 XML
- Metadata language
- English
- Hierarchy level
- Dataset
- Date stamp
- 2022-03-02T12:41:14
- Metadata standard name
- MEDIN
- Metadata standard version
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3.1.1
- Metadata author
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Organisation name Individual name Electronic mail address Role British Oceanographic Data Centre
Helen Snaith
Point of contact
)))
