BD-L-MNT-1 m

Digital field model with a mesh size of 1x1m. Each mesh contains an average elevation value in the Luxembourg vertical reference system (NG95), attached to the Amsterdam tide gauge (Normal Null — Pegel Amsterdam). This altitude is expressed in m! The accuracy is in the range of 1 to several meters. This model comes from an autocorrelation of aerial images and has been manually corrected. Its goal is the best possible rectification of aerial images during the creation of the orthophoto 2017. It is a “technical” dataset that does not have a homogeneous and guaranteed accuracy. In 2019, such a dataset will be made available, after the LiDAR campaign for the whole country该数据集为网格尺寸1×1米的数字场模型，每个网格存储卢森堡垂直基准系（NG95）下的平均高程值，该基准关联阿姆斯特丹验潮站的正常基准面（Pegel Amsterdam），高程以米为单位。 其精度范围为1米至数米。 该模型基于航空影像自相关分析生成，并经过人工校正。其核心目标是在2017版正射影像（orthophoto）制作过程中，实现航空影像的最优正射校正。 本数据集属于‘技术类’数据集，不具备均匀一致且经保障的精度。 2019年，在全国范围激光雷达（LiDAR）测绘作业完成后，此类数据集将正式对外发布。