RANKING OF TERRITORIAL COMMUNITIES OF THE LVIV REGION BASED ON THE FREQUENCY OF FLOODING OCCURRENCES

Abstract

This article examines the frequency and geographic distribution of floods in Lviv Region from 1880 to 2024. The aim is to rank territorial communities based on their flood susceptibility using geoinformation technologies (ArcGIS). The research is grounded in the analysis of historical data, literature, and official reports from the State Emergency Service of Ukraine. The findings reveal a significant increase in flood events since the 1940s, especially in the southern parts of the region.
The novelty lies in using geoinformation tools to map hazard levels. Based on the number of recorded floods, communities were classified into risk zones: high (15+ events), moderate (11–15), mild (5–10), and low (fewer than 5). The high-risk zone includes Lviv, Boryslav, and Stryi communities; the moderate-risk zone covers Horodok, Pustomyty, Skhidnytsia, Drohobych, Turka, Sambir, and Novokalyniv.
The results can be used to improve flood monitoring and forecasting systems and strengthen civil protection strategies. Ranking communities is a useful tool for managing flood risks, enhancing emergency preparedness, and supporting sustainable development. Future research will explore community-specific flood drivers and adaptive strategies.