The impacts of climate change on hydrological processes of Gilgel Gibe catchment, southwest Ethiopia

1993–2011 and validation was done by streamflow record of 2012–2021. Afterwards, the cali- brated values of these 9 parameters were used for further simulations. The parameter ranking was taken from the last iterations of SUFI-2 based on t-stat and p-stat. The larger in the abso- lute value of t-stat and the smaller the p-value, the more sensitive is the parameter [49]. As it can be seen from Table 2, the top three most sensitive parameters are CN2 (moisture condition II curve number), SOL_AWC (Available water capacity of the soil layer) and RCHRG_DP (Deep aquifer percolation fraction) (Table 2). Fig 10. Calibration and validation of average monthly streamflow. https://doi.org/10.1371/journal.pone.0287314.g010 PLOS ONE The impacts of climate change on hydrological processes of gilgel gibe catchment PLOS ONE | https://doi.org/10.1371/journal.pone.0287314 June 28, 2023 14 / 28