Assessing Climate Change Impact on Water Balance Components Using Integrated Groundwater–Surface Water Models (Case Study: Shazand Plain, Iran)

Assessing the status of water resources is essential for long-term planning related to and many other needs a country. According climate reports, change on rise in all parts world; however, this phenomenon will have more consequences arid semi-arid regions. The aim study evaluate effects groundwater, surface water, their exchanges Shazand plain Iran, which has experienced significant decline streamflow groundwater level recent years. To address issue, we propose use integrated hydrological model MODFLOW-OWHM simulate level, routing, interactions; model, NorESM, under scenario SSP2, data prediction; and, finally, HEC-HMS predict future river discharge. results that, conditions, discharges at hydrometric stations region may decrease by 58%, 63%, 75%, 81%. average 2060 significantly 15.1 m compared 2010. reveal likely destructive highlight need sustainable management methods mitigate these effects.