Remote sensing of natural hazards

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3D data processing &rockfall geometry extraction NJ Rosser, DN Petley, M. Lim, SA Dunning & RJ Allison 2005 Terrestrial laser scanning for monitoring the process <strong>of</strong> hard rock coastal cliff erosion Quarterly Journal <strong>of</strong> Engineering Geology and Hydrogeology, 38, 363–375
Reassessing retreat 654,373 rockfalls monitored over 5 years (mean = 0.001 m 3 , largest = 2,500 m 3 ) Aggregate recession rate = 0.01 m/yr (published rate = 0.1 m/yr) Predicted 100 yr retreat = 3.6 m (published prediction 100 yr retreat – 90 m)
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