WMS The General Bathymetric Chart of the Oceans (GEBCO) consists of an international group of experts who work on the development of a range of bathymetric data sets and products. GEBCO operates under the joint auspices of the International Hydrographic Organization (IHO) and the Intergovernmental Oceanographic Commission (IOC) of UNESCO. See our web site for more information about GEBCO at https://www.gebco.net/. The GEBCO_2020 Grid is a global grid of elevation data at 15 arc-second intervals. This data set is available as a Web Map Service (WMS) for use as imagery in your applications. Further information about the data sets included in the grid can be found in the documentation that accompanies the data set and is available from https://www.gebco.net/data_and_products/gridded_bathymetry_data/. The GEBCO_2020 Grid is produced through the framework of the Nippon Foundation-GEBCO Seabed 2030 Project https://seabed2030.org. This service provides access to the GEBCO_2020 Grid in the form of a flat image layer 'GEBCO_2020_GRID_2' and as a shaded relief image layer, 'GEBCO_2020_Grid'. Layer 'GEBCO_2020_GRID_3' shows those pixels that are based on measured data (largely ship-track data) or pre-generated grids. Areas based on interpolation are set to black. The GEBCO_2020 Grid is accompanied by a Source Data Type Identifier (TID) grid - this indicates the type of data that the corresponding cells in the GEBCO grid are based on. Information on how to download the GEBCO's grids can be found at https://www.gebco.net/data_and_products/gridded_bathymetry_data/. Please note that GEBCO's grids are mainly deeper water data sets and do not contain detailed bathymetry in shallower water areas. This WMS has been developed by the British Oceanographic Data Centre (BODC) on behalf of the GEBCO community. If imagery from this WMS is included in web sites, reports and digital and printed imagery then we request that the source of the dataset is acknowledged and be of the form 'Imagery reproduced from the GEBCO_2020 Grid, www.gebco.net'. Imagery for land areas is largely based on the elevation values contained with the SRTM15_plus V2 data set (https://topex.ucsd.edu/WWW_html/srtm15_plus.html), that serves as a ‘base grid’ for the GEBCO_2020 Grid. For the shaded relief imagery, layer GEBCO_2020_Grid, ice cover information for areas north of Antartica is based on the GLIMS data base: Raup, B.H.; A. Racoviteanu; S.J.S. Khalsa; C. Helm; R. Armstrong; Y. Arnaud (2007). 'The GLIMS Geospatial Glacier Database: a New Tool for Studying Glacier Change'. Global and Planetary Change 56:101—110. (doi:10.1016/j.gloplacha.2006.07.018). For snow/ice regions around Greenland IceBridge BedMachine Greenland, Version 3 was used: Morlighem, M. et al. 2017, updated 2018. IceBridge BedMachine Greenland, Version 3. [Mask layer, flag values 2, 3 and 4]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/2CIX82HUV88Y. [7th October 2020]. For the area around Antarctica land/ice extent is produced using data from the SCAR Antarctic Digital Database V7.2: https://www.add.scar.org/. Bathymetry Grid GEBCO seafloor imagery Pauline Weatherall British Oceanographic Data Centre (BODC) GEBCO Digital Atlas Manager Postal

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Liverpool Merseyside L3 5DA UK +44 (0)151 795 4800 Imagery and derived elevation information from this WMS is not to be used for navigation or any purpose relating to safety at sea. Although every effort has been made to make sure that the imagery is as error free as possible, the British Oceanographic Data Centre (BODC) and the General Bathymetric Chart of the Oceans (GEBCO) give no warranty as to the quality or completeness of the imagery or to the non-interruption or continuation of the service. 4096 4096 text/xml image/png image/jpeg image/gif image/svg+xml application/x-pdf image/tiff image/png; mode=8bit image/vnd.jpeg-png image/vnd.jpeg-png8 application/vnd.mapbox-vector-tile application/x-protobuf application/json text/html application/vnd.ogc.gml text/plain text/xml image/png; mode=8bit image/png image/vnd.jpeg-png image/vnd.jpeg-png8 text/xml XML INIMAGE BLANK GEBCO_2020 The General Bathymetric Chart of the Oceans (GEBCO) consists of an international group of experts who work on the development of a range of bathymetric data sets and products. GEBCO operates under the joint auspices of the International Hydrographic Organization (IHO) and the Intergovernmental Oceanographic Commission (IOC) of UNESCO. See our web site for more information about GEBCO at https://www.gebco.net/. The GEBCO_2020 Grid is a global grid of elevation data at 15 arc-second intervals. This data set is available as a Web Map Service (WMS) for use as imagery in your applications. Further information about the data sets included in the grid can be found in the documentation that accompanies the data set and is available from https://www.gebco.net/data_and_products/gridded_bathymetry_data/. The GEBCO_2020 Grid is produced through the framework of the Nippon Foundation-GEBCO Seabed 2030 Project https://seabed2030.org. This service provides access to the GEBCO_2020 Grid in the form of a flat image layer 'GEBCO_2020_GRID_2' and as a shaded relief image layer, 'GEBCO_2020_Grid'. Layer 'GEBCO_2020_GRID_3' shows those pixels that are based on measured data (largely ship-track data) or pre-generated grids. Areas based on interpolation are set to black. The GEBCO_2020 Grid is accompanied by a Source Data Type Identifier (TID) grid - this indicates the type of data that the corresponding cells in the GEBCO grid are based on. Information on how to download the GEBCO's grids can be found at https://www.gebco.net/data_and_products/gridded_bathymetry_data/. Please note that GEBCO's grids are mainly deeper water data sets and do not contain detailed bathymetry in shallower water areas. This WMS has been developed by the British Oceanographic Data Centre (BODC) on behalf of the GEBCO community. If imagery from this WMS is included in web sites, reports and digital and printed imagery then we request that the source of the dataset is acknowledged and be of the form 'Imagery reproduced from the GEBCO_2020 Grid, www.gebco.net'. Imagery for land areas is largely based on the elevation values contained with the SRTM15_plus V2 data set (https://topex.ucsd.edu/WWW_html/srtm15_plus.html), that serves as a ‘base grid’ for the GEBCO_2020 Grid. For the shaded relief imagery, layer GEBCO_2020_Grid, ice cover information for areas north of Antartica is based on the GLIMS data base: Raup, B.H.; A. Racoviteanu; S.J.S. Khalsa; C. Helm; R. Armstrong; Y. Arnaud (2007). 'The GLIMS Geospatial Glacier Database: a New Tool for Studying Glacier Change'. Global and Planetary Change 56:101—110. (doi:10.1016/j.gloplacha.2006.07.018). For snow/ice regions around Greenland IceBridge BedMachine Greenland, Version 3 was used: Morlighem, M. et al. 2017, updated 2018. IceBridge BedMachine Greenland, Version 3. [Mask layer, flag values 2, 3 and 4]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/2CIX82HUV88Y. [7th October 2020]. For the area around Antarctica land/ice extent is produced using data from the SCAR Antarctic Digital Database V7.2: https://www.add.scar.org/. Bathymetry Grid GEBCO seafloor imagery EPSG:4326 EPSG:3395 EPSG:3857 -180.000000 360.000000 -90.000000 90.000000 GEBCO_2020_Grid GEBCO_2020_Grid GEBCO_2020_Grid The GEBCO_2020 Grid is a global grid of elevation data at 15 arc-second intervals. This layer displays the GEBCO_2020 Grid as a shaded relief image showing the shape of the global seafloor. The imagery extends from -180 to 360 in longitude. Please note that the GEBCO_2020, is also available as 2D, flat image in layer GEBCO_2020_Grid_2. Ice cover information for areas north of Antartica is based on the GLIMS data base: Raup, B.H.; A. Racoviteanu; S.J.S. Khalsa; C. Helm; R. Armstrong; Y. Arnaud (2007). 'The GLIMS Geospatial Glacier Database: a New Tool for Studying Glacier Change'. Global and Planetary Change 56:101—110. (doi:10.1016/j.gloplacha.2006.07.018). For snow/ice regions around Greenland IceBridge BedMachine Greenland, Version 3 was used: Morlighem, M. et al. 2017, updated 2018. IceBridge BedMachine Greenland, Version 3. [Mask layer, flag values 2, 3 and 4]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/2CIX82HUV88Y. [7th October 2020]. For the area around Antarctica land/ice extent is produced using data from the SCAR Antarctic Digital Database V7.2: https://www.add.scar.org/. Access a legend image: https://www.gebco.net/data_and_products/gebco_web_services/web_map_service/images/gebco_depth_colour_key_vertical.jpg -180.000000 360.000000 -90.000000 90.000000 text/xml 1e+07 GEBCO_2020_Grid_2 GEBCO_2020_Grid_2 GEBCO_2020_Grid_2 The GEBCO_2020 Grid is a global grid of elevation data at 15 arc-second intervals. This layers displays the GEBCO_2020 Grid as an image colour-shaded for elevation. Access a legend image from: https://www.gebco.net/data_and_products/gebco_web_services/web_map_service/images/gebco_depth_colour_key_vertical.jpg -180.000000 360.000000 -90.000000 90.000000 text/xml 4e+07 GEBCO_2020_Grid_3 The GEBCO_2020 Grid is a global grid of elevation data at 15 arc-second intervals. It is GEBCO's latest global bathymetric model. This layers displays grid cells from the GEBCO_2020 Grid that are based on measured data or pre-generated grids, colour shaded for depth. Those grid cells that are based on interpolation methods are shown in black. This helps to highlight the regions that have yet to be mapped. Further details about the development of the GEBCO_2020 Grid can be found in the accompanying documentation. Access a legend image from: https://www.gebco.net/data_and_products/gebco_web_services/web_map_service/images/gebco_depth_colour_key_vertical.jpg -180.000000 360.000000 -90.000000 90.000000 text/xml GEBCO_2020_TID_2 Imagery based on the GEBCO_2020 Source Data Type Identifier (TID) Grid. This TID layer identifies grid cells based on measured data or those based on interpolation. This layer displays the GEBCO_2020 TID grid colour coded for TID value. Access a legend image from: https://www.gebco.net/data_and_products/gebco_web_services/web_map_service/images/gebco_tid_legend.jpg -180.000000 360.000000 -90.000000 90.000000 text/xml GEBCO_2020_TID Imagery based on the GEBCO_2020 Source Data Type Identifier (TID) Grid. This TID layer identifies grid cells based on measured data or those based on interpolation. -180.000000 360.000000 -90.000000 90.000000 text/xml