ASSESSMENT OF THE HYDROLOGICAL REGIME OF THE SIRET RIVER AND ITS SIGNIFICANCE FOR WATER RESOURCES MANAGEMENT
DOI:
https://doi.org/10.32782/naturaljournal.17.2026.7Keywords:
hydrographic network, river runoff, average annual and average monthly water flows, water balance, hydrological calculations, hydrological hazards, GIS technologies, water management planningAbstract
The hydrological regime of the Siret River up to the city of Storozhynets was studied to assess its characteristics and significance for water resources management. The Siret River, a tributary of the Danube, is a transboundary watercourse. It is characterized by complex runoff formation conditions, mixed feeding, and significant seasonal variability of water flow. Long-term hydrological observation data (1971–2020) from the hydrological station in Storozhynets were used. Analysis of annual and monthly water discharges, assessment of long-term runoff variability, extreme discharges, and seasonal patterns of the hydrological regime were conducted. Differential integral curves of module coefficients were applied to determine high- and low-water periods, while GIS methods were used for spatial analysis. Spring flood predominance, summer rain floods, and pronounced long-term variability of water flow were identified, including low-water periods (1971–1980, 1986–2001) and a prolonged high-water period (2001–2016). The results allow for the assessment of regional water availability, forecasting potential water deficits, and determining directions for managing the Siret River, including flow regulation, improvement of drainage systems, and rational use of catchment areas. The combination of statistical and GIS methods provides a comprehensive assessment of the hydrological regime and forms a scientifically grounded basis for water management planning, water resource protection, and reduction of flood risks within the Siret River basin. The results have practical significance for effective water resources management and the development of water protection measures in the transboundary basin.
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