Evaluating the Effect of Modelling Methods and Landslide Inventories Used for Statistical Susceptibility Modelling
- Autor(en)
- Stefan Steger, Rainer Bell, Helene Petschko, Thomas Glade
- Abstrakt
Landslide susceptibility maps can be elaborated using a variety of methodological approaches. This study investigates quantitative and qualitative differences between two statistical modelling methods, taking into account the impact of two different response variables (landslide inventories) for the Rhenodanubian Flysch zone of Lower Austria. Quantitative validation of the four generated susceptibility maps is conducted by calculating conventional accuracy statistics for an independent random landslide subsample. Qualitative geomorphic plausibility is estimated by comparing the final susceptibility maps with hillshades of a high resolution Airborne Laser Scan Digital Terrain Model (ALS-DTM). Spatial variations between the final susceptibility maps are displayed by difference maps and their densities. Although statistical quality criterions reveal similar qualities for all maps, difference maps and geomorphic plausibility expose considerable differences between the maps. Given that, this conclusion could only be drawn by evaluating additionally the geomorphic plausibility and difference maps. Therefore, we indicate that conventional statistical quality assessment should be combined with qualitative validation of the maps. . © Springer International Publishing Switzerland 2015.
- Organisation(en)
- Institut für Geographie und Regionalforschung
- Seiten
- 201-204
- Anzahl der Seiten
- 4
- DOI
- https://doi.org/10.1007/978-3-319-09057-3_27
- Publikationsdatum
- 2014
- Peer-reviewed
- Ja
- ÖFOS 2012
- 507015 Regionalforschung
- Schlagwörter
- ASJC Scopus Sachgebiete
- Allgemeine Umweltwissenschaft, Allgemeine Erdkunde und Planetologie
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/e5739f85-6380-4ecb-9dfc-482a7fe4d1fe