Digital terrain model (DGM) - aerial flight 2023/2024, Riesa

The digital terrain model describes the terrain surface through a regular dot grid. From each grid point, the location and height are known. The update takes place in a 6-year cycle.

数字地形模型（Digital Terrain Model）通过规则点网格表征地表形态，每个网格点均记录有其位置与高程信息。该模型的更新周期为6年。