Comprehensive range of height & LiDAR data suitable for Local Authorities, Government agencies, private sector engineering, environmental & planning consultancies.
Supplier | Dataset Name | Resolution | Vertical Accuracy | Coverage | DTM or DSM | Data Collection Method |
---|---|---|---|---|---|---|
Environment Agency | EA LiDAR | 2m-0.25m | +/- 15cm | Coastal, flood risk and urban centres | Both | LiDAR and photogrammetry |
Ordnance Survey | OS Terrain 5 | 5m | +/- 1.5m Urban, +/- 2.5m Rural | GB | DTM | Photogrammetry, topographical survey |
Ordnance Survey | OS Terrain 50 | 50m | +/- 4m | GB | DTM | Photogrammetry, topographical survey |
Intermap | Nextmap | 5m | +/- 1m | GB | Both | IFSAR |
LPS | LPS OS NI | 10m | +/- 1m | NI | DTM | Photogrammetry |
Airbus Defence & Space | Astrium LiDAR | 2m – 0.5m | +/- 15cm | 100+ GB urban areas | LiDAR | LiDAR |
Blom | Blom LiDAR | Up to 0.25m | +/- 15cm | London | Both | LiDAR |
Cities Revealed | CR Height | 2m or 1m | +/- 15cm | Numerous urban centres and environs | Both | LiDAR |
Digital Surface Models (DSMs) provide a topographic model of the earth’s surface. They measure the height values of the first surface on the ground as seen from above, including terrain features, buildings, vegetation and power lines.
Digital Terrain Models (DTMs) provide a topographic model of the bare earth / underlying terrain of the earth’s surface and are usually derived from DSMs by digitally removing the man-made and vegetation features. The stated accuracy of a DTM will therefore usually be slightly lower than that of the DSM it’s derived from, particularly in areas of continuous and dense building and tree coverage.
Our height data and LiDAR products for site landscape and topography add up to the most comprehensive online range in terms of detail and coverage.
Easy to work with, the data can be brought into CAD and GIS software to enable 3D analysis and provide important contextual information for a range of applications.
We are 2D & 3D specialists providing Digital Construction Data to Architects, Planners, Developers and Civil Engineers etc involved in developing the built environment.
Specifically, we supply highly cost effective Ordnance Survey Mapping, 3D Models, CGI Visualisations, Utility Reports, Height & LiDAR Data, Aerial Photos & Land & Building Surveys.