Photogrammetric Monitoring of an Artificially Generated Shallow Landslide
AuthorAkça, Mehmet Devrim
MetadataShow full item record
CitationAkca, D. (2013). Photogrammetric monitoring of an artificially generated shallow landslide. The Photogrammetric Record, 28(142), 178-195. doi:10.1111/phor.12016
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.