Elevation data Arendal 10pkt 2022

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). 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).高程数据可精细化描述地形与地表特征。该类数据通过机载激光扫描生成点云(Point Cloud)，或通过航空影像匹配获取点云。针对不同应用场景，点云密度（单位：点/平方米）存在差异。基于上述点云，可生成格网格式的地形高程模型（DTM）与地表高程模型（DOM）。 高程数据可精细化描述地形与地表特征。该类数据通过机载激光扫描生成点云，或通过航空影像匹配获取点云。针对不同应用场景，点云密度（单位：点/平方米）存在差异。基于上述点云，可生成格网格式的地形高程模型（DTM）与地表高程模型（DOM）。 高程数据可精细化描述地形与地表特征。该类数据通过机载激光扫描生成点云，或通过航空影像匹配获取点云。针对不同应用场景，点云密度（单位：点/平方米）存在差异。基于上述点云，可生成格网格式的地形高程模型（DTM）与地表高程模型（DOM）。 基于上述点云，可生成格网格式的地形高程模型（DTM）与地表高程模型（DOM）。