Vegetation digital surface model (LiDAR 2018)

The normalised digital surface model is the result of the difference calculation between the DOM (Raster Data) and DTM (Raster Data) and includes the 2018 vegetation (LiDAR).归一化数字表面模型（Normalised Digital Surface Model）是数字正射影像图（DOM，Digital Orthophoto Map，栅格数据）与数字地形模型（DTM，Digital Terrain Model，栅格数据）的差值计算结果，且包含2018年的激光雷达（LiDAR）植被数据。