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Characteristics - LiDAR

  • LiDAR data collection produces a geographic database with height and surface measurement information (see image below).
  • Collected by a laser at intervals of between 1m and 2m on the ground, the vertical accuracy of each height point is +/- 15 cm.
  • The LiDAR database is referenced to the British National Grid system which means that it can be easily integrated with other geographic databases and Ordnance Survey mapping.
  • The data collected can be used to produce both Digital Terrain Models (ground surface only) and Digital Surface Models (the ground and all features on it).
  • LiDAR data is available in ERDAS Imagine format projected in British National Grid.

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lattico © The GeoInformation Group

Image Above: 3D Model created to view building heights near 30 St Mary Axe, London (The Gherkin).