Map of slopes derived from the 1m TDM of the LIDAR 2008 of the Autonomous Community of the Basque Country

The raster map of slopes with 25m cell has been generated from the Digital Terrain Model with 1m mesh passage of the year 2008 and the vectorized slope maps are created from reclassifying the raster map into ranges. The raster map is distributed in a single image in .tif format for the entire Autonomous Community of the Basque Country while the vectorized map is distributed in shapefile format, both in the ETRS89 geodetic reference system.本数据集的25米像元坡度栅格地图由2008年发布的1米格网数字地形模型（Digital Terrain Model, DTM）生成；矢量化坡度地图则通过对该栅格地图按坡度区间重分类制作而成。其中，覆盖整个巴斯克自治区的栅格地图以单幅.tif格式影像发布，矢量化地图则以shapefile格式发布，二者均采用1989欧洲大地参考系统（ETRS89）作为大地参考坐标系。