Integration of geospatial analysis, frequency ratio, and analytical hierarchy process for landslide susceptibility assessment in the maze catchment, omo valley, southern Ethiopia

A study in the Maze watershed, Omo River Valley, southern Ethiopia, reveals that 64% of the area faces moderate to very high landslide susceptibility, with the Analytical Hierarchy Process (AHP) method identifying a larger proportion of highly vulnerable zones compared to the Frequency Ratio (FR) approach. The research integrated geospatial analysis, FR, and AHP techniques to assess landslide risk using factors like slope, lithology, land use, vegetation index, and proximity to faults and roads. Validation through receiver operating characteristic curves showed high accuracy for both methods (AUC: 0.873 for FR, 0.87 for AHP), with prediction rates of 0.81 and 0.80 respectively. These findings underscore the potential impact on land resource allocation in the region.

Kebeba, O., Shano, L., Chemdesa, Y., & Jothimani, M. (2024). Integration of geospatial analysis, frequency ratio, and analytical hierarchy process for landslide susceptibility assessment in the maze catchment, omo valley, southern Ethiopia. Quaternary Science Advances, 15, 100203. https://doi.org/10.1016/j.qsa.2024.100203