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In this study we analyzed a series of terrestrial LiDAR point clouds acquired over a cliff in Puigcercos (Catalonia, Spain). The objective was to detect and extract individual rockfall events that occurred during a time span of six months and to investigate their spatial distribution. To this end local and global cluster algorithms were applied. First we used the nearest neighbor clutter removal (NNCR) method in combination with the expectationmaximization (EM) algorithm to separate featuredoi:10.5311/josis.2014.8.123 fatcat:o23fncylkbdtlc7h5lenieikqm