Regular grid model of the emerged coastal strip, with a 50 centimeters resolution, which expresses the orthometric altitudes of the terrain, without the elements that may be above it (buildings, vegetation, etc.).

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.).

Regular grid model of 25 centimeters resolution, from the territory of the Barcelona metropolitan area, which expresses the orthometric altitudes of the surface of the territory, including the natural and artificial elements found on the ground (trees, buildings, etc.).

Regular grid model of 25 centimeters resolution, from the territory of the Barcelona metropolitan area, which expresses the orthometric altitudes of the terrain, without the elements that may be above it (buildings, vegetation, etc.).

The orthophoto is a cartographic document that consists of a vertical aerial image which has been rectified in such a way that the same scale is kept in the entire surface of the image, being a geometric representation on scale of the terrestrial surface. It is a orthophoto with a resolution of 25 cm generated from images with a pixel resolution variable according to the zones. The infrared orthophoto (OI-25C) provides information about the infrared area of the electromagnetic spectrum. Shows the combination of IRC bands that correspond to Infrared, Red and Green channels, a combination called "false color".

Orthophoto (mosaic of rectified aerial images) of the coastal strip (total or partial), with a resolution generally between 10 and 15 cm above the ground, generated from photogrammetric flights.

Regular grid model of the emerged coastal strip, with a 1 meter resolution, which expresses the orthometric altitudes of the terrain, without the elements that may be above it (buildings, vegetation, etc.).