LiDAR
 LiDAR (Light Detection and Ranging) is an airborne method of mapping elevation information where high accuracy is required. This can be in the region of 10-20cm on the vertical axis with a ground resolution of up to 1 metre.A view of Bluesky's LiDAR data
It works on the same principle as RADAR except using light waves instead of radio waves. The light is then transmitted as pulses from the laser scanner. The time it takes for the light to travel out to the target and back to the LiDAR scanner is used to determine the range.
Applications include:
- Flood Mapping
- Visualisation
- Light Studies
- Spot Height Information
- Noise Mapping
- Engineering Projects
| Coverage: |
70,000sq km approx. ( areas of England, Scotland & Wales) |
| Type: |
DTM and DSM |
| Source: |
Airborne LiDAR |
| Currency: |
1998 to 2006 |
| Formats: |
ASCII XYZ, ARC ASCII Grid, GeoTIFF |
| Resolution: |
0.25m to 3m |
| Vertical Accuracy: |
between +/-10cm RMSE & +/-1m RMSE |
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