Photogrammetric monitoring of an artificially generated shallow landslide
Citation
Akça, M. D. (2013). Photogrammetric monitoring of an artificially generated shallow landslide. The Photogrammetric Record, 28(142), 178-195. doi:10.1111/phor.12016Abstract
An artificial rainfall event was applied to a forested slope in Ruedlingen, northern Switzerland. The experiment triggered a landslide which resulted in mobilising about 130m3 of debris. The event was monitored by a photogrammetric network of four cameras, operating at 5 to 8 frames per second, in order to quantify spatial and temporal changes by tracking tennis balls pegged into the ground. Image measurements were performed using automated image matching methods, implemented through a software package developed in-house. Three-dimensional coordinates of the target points were estimated by running a customised type of bundle adjustment, achieving a positioning precision of +/- 1 center dot 8cm.