Climate change impacts on the streamflow of Zarrineh River, Iran

Zarrineh River is located in the northwest of Iran, providing more than 40% total inflow into Lake Urmia that one largest saltwater lakes on earth. a highly endangered ecosystem brink desiccation. This paper studied impacts climate change streamflow River. The was simulated and projected for period 1992–2050 through seven CMIP5 (coupled model intercomparison project phase 5) data series (namely, BCC-CSM1-1, BNU-ESM, CSIRO-Mk3-6-0, GFDL-ESM2G, IPSL-CM5A-LR, MIROC-ESM MIROC-ESM-CHEM) under RCP2.6 (RCP, representative concentration pathways) RCP8.5. were statistically downscaled bias corrected using an artificial neural network (ANN) technique Gamma based quantile mapping correction method. best (CSIRO-Mk3-6-0) chosen by TOPSIS (technique order preference similarity to ideal solution) method from models statistical indices. For simulation streamflow, rainfall-runoff model, hydrologiska byrans vattenavdelning (HBV-Light) utilized. Results hydro-climatological changes basin showed mean daily precipitation expected decrease 0.94 0.96 mm 2015 0.65 0.68 2050 RCP8.5, respectively. In case temperature, numbers 12.33°C 12.37°C 14.28°C 14.32°C 2050. Corresponding these scenarios, this study annual half as results climatic will lead 59.49 m3/s 22.61 23.19 finding important meaning water resources planning purposes, management programs strategies Lake’s ecosystem.