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oa Geospatial Analysis on Landslides in Slavska Verkhovyna on the Ukrainian Carpathians
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Fourth EAGE Workshop on Assessment of Landslide Hazardsand impact on communities, Sep 2023, Volume 2023, p.1 - 5
Abstract
The distribution of various types of landslides of the Slavska Verkhovyna of the Vododilno-Verkhovyna Ukrainian Carpathians was investigated. The methods of own field observations over many years, analysis of aero- and space materials, reports of a geological exploration expedition, GIS analysis were used. The morphometric parameters and conditions for the development of large, medium and small landslides were studied. Analyzing morphometric maps of the localization of landslides in QGIS, the number of landslides by mode of movement was calculated. Earthflow together with the transitional types (translational & earthflow) predominate and make up 66% of all landslides. Landslides are located on slopes with a steepness of 15–20°. According to the exposure, the largest landslide areas are located on the slopes of the northeastern and southwestern exposures. 60% of earthflow and transitions, 19% of block-slide and 15% translational is located on the lower parts of the ridge slopes and valley slopes. We have determined that the most dangerous frontal block-slide and circus-shaped translational large landslides, their activation mostly occurs in the lower parts of the mountain slopes also, where economic activities are conducted.