Generalisation at 1 km resolution of elevation breakdown 100 m (based on EU-DEM). This layer defines homogeneous areas as function of height, slope and distance to the sea. The Elevation Breakdown is used to allocate Land Cover Changes into homogeneous areas as function of height, slope and distance to the sea. It defines five relief typologies: 1) Low coasts, 2) High Coasts, 3) Inlands, 4) Uplands and 4) Mountains. The previous enumeration corresponds to values in the grid.This layer is an updated version using similar methodology to the one created on 2006 (same classes and thresholds) but it has been generated using up-to-date high resolution datasets (EU-DEM) in order to create a more accurate layer.

The delineation of European mountain areas was carried out by using digital elevation models, considering different criteria combination of thresholds of altitude, climate, and topography variables (IP2008 8.2.7 Regional and territorial development of mountain areas, ETC/LUSI - EEA). This dataset was created in 2008, covers the full European continent and is a reference layer for the EEA Report No 6/2010 on Europe's ecological backbone: recognising the true value of our mountain (https://www.eea.europa.eu/publications/europes-ecological-backbone).

The EU-DEM v1.1 is a resulting dataset of the EU-DEM v1.0 upgrade which enhances the correction of geo-positioning issues, reducing the number of artefacts, improving the vertical accuracy of EU-DEM using ICESat as reference and ensuring consistency with EU-Hydro public beta. EU-DEM v1.1 is available in Geotiff 32 bits format. It is a contiguous dataset divided into 100x100 km tiles, resulting in a total of 1992 tiles of 4000x4000 pixel at 25m resolution with vertical accuracy: +/- 7 meters RMSE. The tiles have been grouped in big regions: - EUDEM2_ASIA (Turkey) - EUDEM2_ATLAN (Hondo and Fr_Islands) - EUDEM2_BRITAIN (Thames, Shannon and Tweed) - EUDEM2_EUROPE_1 (Duero, Ebro, Tajo, Guadalquivir and Jucar) - EUDEM2_EUROPE_2 (Tirso, Mesima, Tevere and Po) - EUDEM2_EUROPE_3 (Garonne, Rhone, Loire, Seine and western Rhine) - EUDEM2_EUROPE_4 (Danube) - EUDEM2_EUROPE_5 (Skjern, Nemunas, Vistula, Oder, Elbe and Eastern Rhine) - EUDEM2_EUROPE_6 (Bulgaria and Pinios) - EUDEM2_ICELAND (Iceland) - EUDEM2_SCAND (Vorma, Gota, Angerman, Tana, Kemi and Neva) - EUDEM2_SOUTH_AMERICA (Fr_Guiana) EU-DEM v1.1 upgrade was coordinated by the European Environment Agency (EEA) in the frame of the EU Copernicus programme.