Digital Terrain Model (LiDAR 2018)

The level digital terrain model (LiDAR 2018) is the mapping of the earth’s surface without buildings and vegetation. The data are based on airborne laser measurements with an average point density of 16 points per m² and an altitude accuracy of 10 cm (1 Sigma=68 %). The flight took place in spring 2018.

2018年机载激光雷达（LiDAR）水准型数字地面模型为移除建筑物与植被后的地表测绘数据集。该数据基于机载激光测量技术构建，平均点云密度为每平方米16个点，高程精度达10厘米（1倍标准差置信度为68%）。数据采集飞行任务于2018年春季实施。