DEM

Digital elevation models (DEM) Are one of many products that can be delivered from lidar data, though they can also be derived from other sources. DEM's are digital representations of the earths topographic surface. They are bare-earth product because they do not include surface features like buildings and vegetation. A high-resolution DEM can be delivered from lidar point cloud data by stripping away the surface features and sample of ground elevation in uniform increments to produce a bare earth model.