Coastal cliff monitoring using UAS photogrammetry and TLS
Climate change and the imminent sea-level rise mean that coastal protection is becoming increasingly important, and measures must be taken to ensure that life and important infrastructure in coastal areas are protected. An essential prerequisite for the implementation of appropriate coastal protection measures is the monitoring of endangered areas through appropriate sensor technology for the docu-mentation and quantification of damages caused. In this contribution, a practical application is intro-duced using low-cost UAS (unmanned aerial system) to perform aerial flights for the monitoring of a coastal cliff at the Baltic Sea in Germany, since cliffs are exposed to and unprotected from autumn and winter storms. In comparison to UAS-based photogrammetric monitoring with terrestrial laser scanning (TLS), the photogrammetric method showed the same accuracy, but better coverage of the investigated area and a more efficient workflow.
3D | comparison | erosion | dense image matching | DSM | landslide
