Akademik Veri Yönetim Sistemi
V-INTERNATIONAL BAKU CONFERENCE ON SCIENTIFIC RESEARCH, Baku, Azerbaycan, 11 Aralık 2024, ss.3-4
With its adverse and destructive impacts, drought is considered one of the most extreme events, and drought-related studies are increasing daily. Drought assessment is conducted based on drought indices, such as the standardized precipitation index (SPI), one of the most popular indices, and it is calculated using different time scales. Also, innovative trend analysis (ITA) methodology is a power tool used to detect trends and changes in drought and different hydrometeorological variables. This study aims to use the ITA methodology to evaluate the drought trend at short, medium, and long timescales based on SPI. Furthermore, this research also evaluates the frequency of drought trends in order to understand and comprehensively evaluate them. Manavgat station in Antalya basin, Türkiye, is used as a case study to compare and evaluate these timescales, and the monthly precipitation data between 1969 and 2022 is used. The frequency analysis depends on the drought classification proposed in the original SPI article. The results will contribute to the existing literature on the in-depth evaluation of drought, investigating the differences between short, medium, and long timescales regarding drought trends. Finally, the results can be shared with the decision-makers and local authorities