Numerical Model of Land, M-34-49-B-a-4-4

Numerical Land Model refers to the surface of the terrain without elements that protrude above it — natural elements (e.g. treeing) and artificial elements (e.g. buildings). This product was developed in 2010 on the basis of aerial laser scanning.数字地表模型（Numerical Land Model）指剔除了所有地表突出要素的地形表面，此类要素涵盖自然要素（如树木）与人工要素（如建筑物）。该数据集于2010年依托航空激光扫描技术研发而成。