Evaluation of climate change effects in a coastal aquifer in Morocco using a de...

• Author(s): Carneiro, Júlio ; Boughriba, Mimoun ; Correia, António ; Zarhloule, Yassine ; Rimi, Abdelkrim ; El Houadi, Boubker
• Date: 2010
• Persistent ID: http://hdl.handle.net/10174/6564
• Origin: Repositório Científico da Universidade de Évora
• Subject(s): Coastal aquifer; Numerical modelling; Climate change; Seawater intrusion; IPCC scenarios
• Document Type: Article
• Language: English

Description

A density-dependent numerical groundwater model was applied to study the climate change impact in a shallow aquifer in the Mediterranean coast of Morocco, the Saidia aquifer. The stresses imposed to the model were derived from the IPCC emission scenarios and included recharge variation and sea level rise. The main effect of the climate change in the Saidia aquifer will be a decrease in renewable resources, which in the worst-case scenario may decrease to 50–60% of present-day values, due to the decline in recharge and to a reduced inflow from the adjacent Triffa aquifer. The water quality will be affected mostly in the area immediately adjacent to the seashore, where salinity may increase up to 30 g/l. Localised areas may see a decrease in salinity due to the induced freshwater recharge from Oued Moulouya River and diminished inflow from high-salinity springs.