Simulation of Saltwater Intrusion in the Minho River Estuary under Sea Level Rise Scenarios

Estuaries are areas that vulnerable to the impacts of climate change. Understanding how these affect complex environments and their uses is essential. This paper presents a work based on an analytical solution 2DH 3D versions Delft3D numerical model simulate Minho River estuary its saline wedge length under change projections. Temperature observations at several locations in region were selected determine which better simulated temperature patterns. Specific simulations performed for observation periods. Sixteen scenarios proposed, considering varying tide, different river flows, SLR projections RCP4.5 RCP8.5 2050 2100. The was also calibrated using solutions. results show although there no relevant stratification, difference both models worst scenario, intrusion increased up 28 km 30 model. It concluded more precise, but configurations can provide insights into will be affected. Additionally, excellent agreement between allowed us consider helpful tool practical applications. demonstrated freshwater discharges bed slopes most critical drivers as they have impact than increase sea level. Therefore, flow regulation way control future.