Elevation data E39 Møre og Romsdal 2013

Elevation data provides a detailed description of terrain and surface. The data are established as point clouds from airborne laser scanning or matching from aerial images. The point clouds have varying density (point/m²) for different purposes. From the point clouds, elevation models are generated on grid format of terrain (DTM) and surface (DOM). Elevation data provides a detailed description of terrain and surface. The data are established as point clouds from airborne laser scanning or matching from aerial images. The point clouds have varying density (point/m²) for different purposes. From the point clouds, elevation models are generated on grid format of terrain (DTM) and surface (DOM).高程数据可对地形与地表实现精细化描述。该数据通过机载激光扫描或航空影像匹配生成点云数据集，其点密度（点/平方米）因应用场景不同而存在差异；基于该点云，可生成地形（DTM，Digital Terrain Model）与地表（DOM，Digital Surface Model）的格网格式高程模型。高程数据可对地形与地表实现精细化描述。 该数据通过机载激光扫描或航空影像匹配生成点云数据集。 其点密度（点/平方米）因应用场景不同而存在差异。 基于该点云，可生成地形（DTM，Digital Terrain Model）与地表（DOM，Digital Surface Model）的格网格式高程模型。