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GEBCO’s gridded bathymetric data set, the GEBCO_2020 grid, is a global terrain model for ocean and land at 15 arc-second intervals. It is accompanied by a Type Identifier (TID) Grid that gives information on the types of source data that the GEBCO_2020 Grid is based.

If the data sets are used in a presentation or publication then we ask that you acknowledge the source.This should be of the form: GEBCO Compilation Group (2020) GEBCO 2020 Grid (doi:10.5285/a29c5465-b138-234d-e053-6c86abc040b9)

Technical document

A quick video tour of KoBoToolbox - a simple and safe way to collect reliable data

YouTube video explaining how to add a dataset.

YouTube video explaining how to add a resource.

YouTube video explaining how to add additional information.

YouTube video explaining how to create a visualization.

YouTube video explaining how to add a group and user.

YouTube video demonstrating a national data portal.

This shapefile contains the lines that shows the global 200 nautical miles zone. It can be opened in any GIS software.