Akademik Veri Yönetim Sistemi
MEDGU2025, Athens, Yunanistan, 10 - 12 Kasım 2025, cilt.1, sa.1, ss.1, (Tam Metin Bildiri)
Accurate quantification of potential evapotranspiration is critical for understanding and managing water resources, particularly in semi-arid Mediterranean climates. Mediterranean river basins are facing growing hydrological stress due to compounded climatic and anthropogenic influences. While the Budyko framework provides a powerful tool for estimating long-term water balance based on the dryness index and evaporative ratio, its performance is sensitive to the choice of estimation method. is usually calculated by using temperature-based methods (e.g., Thornthwaite) and the radiation-based techniques (e.g., Penman-Monteith). This study investigates the application of Budyko curve in Gediz River Basin, Turkey, by using a hydrometeorological dataset, and to calculate by the Thornthwaite and Penman-Monteith methods and compare both methods in shaping the Budyko curve. Actual evapotranspiration is derived from the water balance equation as the difference between precipitation and discharge. Preliminary outputs of the study dictate that the choice of method influences the Budyko analysis, in which the Penman-Monteith method calculates higher dryness index. The study also concludes that the Budyko curve remains a valuable tool for water resource planning in Mediterranean basins despite existing concerns about the availability of climatological and meteorological data used in the methods. Therefore, models requiring minimal input data are essential for conducting Budyko-based water balance studies in Mediterranean semi-arid basins.