Abstract: Drought is one of the most complex and long-recognised environmental disasters that can trigger environmental, social and economic problems. Drought assessment using drought indices is widely used for drought monitoring. In this study, Streamflow Drought Index (SDI) hydrological droughts were analysed at 3, 6 and 12-month time scales with the data provided from streamflow observation stations in Goksu Basin of Turkiye in 1980-2010. The distribution and magnitudes of the severity of wet and dry periods of the Goksu Basin were determined. In SDI analysis, the driest periods were found to be 2007, 2008 and 2010.

Keywords: Streamflow, Hydrological Drought, Streamflow Drought Index, Goksu Basin

| DOI: 10.17148/IARJSET.2023.10202