Detailed height data provided by the Surveying and Mapping Authority was key to assessing the risk of landslides and soil erosion following heavy rainfall in Slovenia.
Slovenia’s national LiDAR-derived Digital Terrain Model (DTM) was used as authoritative elevation data for the risk assessments.The one metre resolution height information was key to evaluating the hazards in two regions, Maribor and Cirkulane of almost 300 km2 in total. Analysis revealed a moderate or severe risk of soil erosion in around 20 per cent of the area. In terms of susceptibility of landslides, the assessment showed a very low risk in general with only a few localised areas at significant risk.
“Accurately assessing the risk of landslides is crucial for managing the environmental, economic and social impact of heavy rainfall. By providing trusted authoritative geospatial data, the Surveying and Mapping Authority is enabling insights to underpin planning and decision-making at all levels.”
Tomaž Petek, Director General, Surveying and Mapping Authority of the Republic of Slovenia