ISIpedia country masks

This dataset contains the country masks from the ISIpedia (https://www.isipedia.org). The masks are available as binary or fractional maps on a 0.5° x 0.5° latitude-longitude grid. More formats are available at the GitHub repository (Perette 2022, https://github.com/ISI-MIP/isipedia-countries).<br>With version 2.4 we follow the versioning scheme used in the GitHub repository. For the changes, please refer to the release information in the GitHub repository.<br>Version 2.6 updates the fractional countrymask using a different algorithm (see https://github.com/ISI-MIP/isipedia-countries/releases/tag/v2.6). The difference will be mostly pronounced for extended archipelago with tiny islands and small territories attached to large, extended ones, or marginal areas of large territories.