ATKIS — DGM1 (2006)

DGM1 — Laserscan terrain model In spring 2006, an airborne laser scan flight was held to generate a new high-precision terrain model for the entire Saarland. The terrain surface was scanned with a laser installed in the aircraft. As a result, the high-precision DGM1 with a grid width of 1 m and an average height accuracy of 1-2 dm has been available since the end of 2008. As a desired side effect, in addition to terrain data, objects such as buildings and vegetation on the Earth’s surface were scanned, which are available as surface data.DGM1 — 激光扫描地形模型 2006年春季，为构建覆盖整个萨尔兰州的高精度新型地形模型，项目团队开展了机载激光扫描飞行作业。通过搭载于航空器的激光扫描设备对地表地形进行全域扫描，最终于2008年末推出格网宽度为1米、平均高程精度达1至2分米的高精度DGM1产品。作为本次作业的预期附带成果，扫描过程除获取核心地形数据外，还同步采集了地表建筑物、植被等地物信息，并以地表数据的形式对外提供。