DTM / DSM
Digital Terrain Models (DTM's) provide a mathematical representation of the ground or terrain, Digital Surface Models (DSM's) include above-ground features such as buildings and vegetation canopies.
In both cases, Blom group companies create DTM/DSM's as either a direct deliverable or as part of the mapping process, towards the end-goal of producing a topographic map or orthophoto image. Such terrain or surface models can be created using photogrammetry or LiDAR techniques.
Applications include,
- Engineering design
- Environmental/flood plan monitoring
- Telecoms planning
- Urban planning
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