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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL comment String The data in the GEBCO_2021 Grid should not be used for navigation or any purpose relating to safety at sea.
attribute NC_GLOBAL Conventions String CF-1.6, ACDD-1.3, COARDS
attribute NC_GLOBAL creator_email String gdacc at
attribute NC_GLOBAL creator_name String GEBCO through the Nippon Foundation-GEBCO Seabed 2030 Project
attribute NC_GLOBAL creator_type String group
attribute NC_GLOBAL creator_url String (external link)
attribute NC_GLOBAL date_created String 2021-07-01
attribute NC_GLOBAL Easternmost_Easting double 179.99791666666667
attribute NC_GLOBAL geospatial_bounds double -180.0, -90.0, 180.0, 90.0
attribute NC_GLOBAL geospatial_bounds_crs String WGS84
attribute NC_GLOBAL geospatial_bounds_vertical_crs String EPSG:5831
attribute NC_GLOBAL geospatial_lat_max double 89.99791666666667
attribute NC_GLOBAL geospatial_lat_min double -89.99791666666667
attribute NC_GLOBAL geospatial_lat_resolution double 0.004166666666666667
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 179.99791666666667
attribute NC_GLOBAL geospatial_lon_min double -179.99791666666667
attribute NC_GLOBAL geospatial_lon_resolution double 0.004166666666666667
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL grid_mapping_epsg_code String EPSG:4326
attribute NC_GLOBAL grid_mapping_inverse_flattening double 298.257223563
attribute NC_GLOBAL grid_mapping_name String latitude_longitude
attribute NC_GLOBAL grid_mapping_semi_major_axis double 6378137.0
attribute NC_GLOBAL history String Information on the development of the data set and the source data sets included in the grid can be found in the data set documentation available from
attribute NC_GLOBAL id String DOI: 10.5285/c6612cbe-50b3-0cff-e053-6c86abc09f8f
attribute NC_GLOBAL identifier_product_doi String DOI: 10.5285/c6612cbe-50b3-0cff-e053-6c86abc09f8f
attribute NC_GLOBAL infoUrl String (external link)
attribute NC_GLOBAL institution String GEBCO, BODC .
attribute NC_GLOBAL keywords String above, arc, arc-second, arctic, bathymetry/seafloor topography, bodc, british, centre, continuous, data, digital elevation/digital terrain models, elevation, gebco, grid, height, height_above_mean_sea_level, intervals, land, level, mean, model, ocean, oceanographic, oceans, relative, sciences, sea, second, terrain
attribute NC_GLOBAL license String The GEBCO Grid is placed in the public domain and may be used free of charge. Use of the GEBCO Grid indicates that the user accepts the conditions of use and disclaimer information:
attribute NC_GLOBAL naming_authority String (external link)
attribute NC_GLOBAL node_offset double 1.0
attribute NC_GLOBAL Northernmost_Northing double 89.99791666666667
attribute NC_GLOBAL project String Nippon Foundation - GEBCO Seabed2030 Project
attribute NC_GLOBAL references String DOI: 10.5285/c6612cbe-50b3-0cff-e053-6c86abc09f8f
attribute NC_GLOBAL source String The GEBCO_2021 Grid is the latest global bathymetric product released by the General Bathymetric Chart of the Oceans (GEBCO) and has been developed through the Nippon Foundation-GEBCO Seabed 2030 Project. This is a collaborative project between the Nippon Foundation of Japan and GEBCO. The Seabed 2030 Project aims to bring together all available bathymetric data to produce the definitive map of the world ocean floor and make it available to all.
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -89.99791666666667
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v70
attribute NC_GLOBAL summary String The GEBCO_2021 Grid - a continuous terrain model for oceans and land at 15 arc-second intervals. The GEBCO_2021 Grid is a continuous, global terrain model for ocean and land with a spatial resolution of 15 arc seconds.The grid uses as a 'base-map' Version 2.2 of the SRTM15+ data set (Tozer et al, 2019). This data set is a fusion of land topography with measured and estimated seafloor topography. It is augmented with gridded bathymetric data sets developed as part of the Nippon Foundation-GEBCO Seabed 2030 Project.
attribute NC_GLOBAL title String The GEBCO_2021 Grid, a continuous terrain model for oceans and land at 15 arc-second intervals
attribute NC_GLOBAL Westernmost_Easting double -179.99791666666667
dimension latitude double nValues=43200, evenlySpaced=true, averageSpacing=0.004166666666666667
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range double -89.99791666666667, 89.99791666666667
attribute latitude axis String Y
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude sdn_P02_urn String SDN:P02::ALAT
attribute latitude sdn_parameter_name String Latitude north
attribute latitude sdn_parameter_urn String SDN:P01::ALATZZ01
attribute latitude sdn_uom_name String Degrees north
attribute latitude sdn_uom_urn String SDN:P06::DEGN
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
dimension longitude double nValues=86400, evenlySpaced=true, averageSpacing=0.004166666666666667
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range double -179.99791666666667, 179.99791666666667
attribute longitude axis String X
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude sdn_P02_urn String SDN:P02::ALAT
attribute longitude sdn_parameter_name String Longitude east
attribute longitude sdn_parameter_urn String SDN:P01::ALONZZ01
attribute longitude sdn_uom_name String Degrees east
attribute longitude sdn_uom_urn String SDN:P06::DEGE
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable elevation short latitude, longitude
attribute elevation _FillValue short 32767
attribute elevation long_name String Elevation relative to sea level
attribute elevation sdn_P02_urn String SDN:P02::ALAT
attribute elevation sdn_parameter_name String Sea floor height (above mean sea level) {bathymetric height}
attribute elevation sdn_parameter_urn String SDN:P01::ALATZZ01
attribute elevation sdn_uom_name String Metres
attribute elevation sdn_uom_urn String SDN:P06::ULAA
attribute elevation standard_name String height_above_mean_sea_level
attribute elevation units String m

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