Topograhic LiDAR Surveys

LiDAR (Light Detection and Ranging) technology allows for highly accurate three-dimensional topographical representation of the Earth’s surface using a laser system mounted on an aircraft. The very high number of 3D points surveyed (up to 400,000 per second) allows the collection of extensive details of the ground and surface features.

LiDAR quickly and easily provides precise elevation data for ground and above-ground features even through dense vegetation.


  • Generation of an accurate Digital Terrain Model (DTM)
  • Generation of contour lines
  • Volumetric calculation of gravel and sand pits
  • Route planning for roads
  • Embankment/excavation calculations
  • Tree height and standing timber volume calculation
  • Building roof mapping
  • 3D mapping of cities
  • Etc.

Features and Benefits

  • Absolute elevation accuracy: 10 cm (4 in.)
  • Relative accuracy: 2 cm (1 in.)
  • Density: 1 to 20 points/m²
  • Coverage: several hundred square kilometres per day
  • Night collection possible
  • Format compatible with all commonly used SIG software