The GEBCO_2020 Grid - a continuous terrain model of the global oceans and land. ...

• Main Author: GEBCO Bathymetric Compilation Group 2020
• Format: Dataset
• Language: English
• Published: British Oceanographic Data Centre, National Oceanography Centre, NERC, UK 2020
• Subjects: elevation; oceans; Arctic; Arctic Ocean
• Online Access: https://dx.doi.org/10.5285/a29c5465-b138-234d-e053-6c86abc040b9; https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/a29c5465-b138-234d-e053-6c86abc040b9/

The GEBCO_2020 Grid is a global continuous terrain model for ocean and land with a spatial resolution of 15 arc seconds. In regions outside of the Arctic Ocean area, the grid uses as a base Version 2 of the SRTM15_plus data set (Tozer, B. et al, 2019). This data set is a fusion of land topography with measured and estimated seafloor topography. 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. The GEBCO_2020 Grid represents all data within the 2020 compilation. The compilation of the GEBCO_2020 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. Outside of Polar regions, the gridded bathymetric data sets were supplied as sparse grids by the Regional Centers, i.e. only grid cells that contain data were populated. These sparse grids were included on to the base grid without any blending. The ...