Terrestrial Laser Scanning (TLS)
TLS uses a precise laser beam and rotational measurements to return a 3-dimensional set of point information on the surrounding landscape.
The GEF currently has two TLS systems. One is a short range phase scanner (Leica HDS6100) which can scan up to 500,000 points per second. Its range is around 50m which means that for many projects, multiple scans will need to be taken and joined together to cover the features typically of interest to environmental researchers. The fast scan speed of our system makes this easy to accomplish.
The second scanner is a longer range model (Riegl VZ-1000) with a maximum range around 1.4km. It is also a high-speed scanner (though not as fast as the short range model) and is ideal for situations where it is impossible to get close to the target being scanned.
Equipment available to loan
Recent applications received and other possible areas where TLS may be useful are:-
- Modelling surface roughness
- Volume calculations of forest vegetation
- Measuring changes in shifting sand dunes
- Glacier measurements
- Mapping outcrops/faults/surface features