Articles | Volume 9, issue 4
https://doi.org/10.5194/esurf-9-1013-2021
https://doi.org/10.5194/esurf-9-1013-2021
Research article
 | 
26 Aug 2021
Research article |  | 26 Aug 2021

Beyond 2D landslide inventories and their rollover: synoptic 3D inventories and volume from repeat lidar data

Thomas G. Bernard, Dimitri Lague, and Philippe Steer

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Latest update: 26 May 2024
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Short summary
Both landslide mapping and volume estimation accuracies are crucial to quantify landscape evolution and manage such a natural hazard. We developed a method to robustly detect landslides and measure their volume from repeat 3D point cloud lidar data. This method detects more landslides than classical 2D inventories and resolves known issues of indirect volume measurement. Our results also suggest that the number of small landslides classically detected from 2D imagery is underestimated.