Regular grid model of 1 meter resolution, from all over Catalonia, which expresses the orthometric altitudes of the surface of the territory, including the natural and artificial elements found on the ground (trees, buildings, etc.).

Mosaic of georeferenced nautical charts.

Regular grid model of 2 meters resolution, from all over Catalonia, which expresses the orthometric altitudes of the terrain, without the elements that may be above it (buildings, vegetation, etc.).