The application ofterrestrial LiDAR, laser scanning, in earth science has greatly increased in the last decade. Starting from the quarry and architectural industries significant developments in laser optics and hardware enabled the technique to rival and then surpass photogrammetry as the best way of producing 3D computer generated models of stationary objects. Engineering geologists started to recognise the benefits of terrestrial LiDAR in the late 1990's, utilising its ability to model landslides, active volcanoes, eroding coastlines and other geohazards. The development of long and ultra-long range laser scanners has enabled the modelling of remote or potentially unsafe locations that were previously difficult, or impossible, to model.


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