DTM Digital Terrain Model

DTM Digital Terrain Model is a digital elevation model in which terrain
data has been further enhanced with breaklines, creating greater accuracy as
it contains additional information defining terrain in areas where Lidar
data alone is unable to do the job effectively.
Terrain models are based on point clouds obtained during airborne laser
scanning. A Digital Terrain Model (DTM) is a true representation of the
terrain relief. When we supplement it with extra information about objects
on the surface, we can create a Digital Surface Model (DSM). Being a
universal tool, terrain models can be used for determining slope and
elevation, but also for identification of landforms and discovery or
inventory of archaeological objects.
Feiyan Technology also generates fully detailed DTM Digital Terrain Model
for contour generation, orthophoto rectification, and flood plain mapping.
Specification of DTM Digital Terrain Model
Resolution: ≥2 points/m²
Project area: 31,934 km²
Duration: 1 month
Output: DSM,DEM,classified point clouds
Application: forestry planning
Accuracy: ≥98%
Grid spacing: 2m
From: Guangxi Forestry Bureau

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