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Cairo University (2013)

Effect of Climate Change on Sea Water Intrusion in the Nile Delta Coastal Aquifer

Bakinam Tarik Ahmed Essawy

Titre : Effect of Climate Change on Sea Water Intrusion in the Nile Delta Coastal Aquifer

Auteur : Bakinam Tarik Ahmed Essawy

Etablissement de soutenance : Cairo University

Grade : Master of Science (MS) 2013

Résumé
Due to climate change the sea water level is expected to continue rising. Studies report that future sea-level rise is expected to occur at a rate greatly exceeding that of the recent past. For example during the next 100 years, sea levels are expected to rise at a rate between 2.0–8.8 mm/yr (IPCC, 2001). Different measures are thus needed to control seawater intrusion and to protect the groundwater resources. The main principle is to increase the head of fresh groundwater and relative to that saltwater. In order to understand the interactions between sea level rise and increased seawater intrusion, a full three-dimensional model is needed. Also, evaluating different mitigation measures is more realistic in three dimensions. The main objective of this study is to assess the impact of expected sea level rise on the groundwater resources in the Nile Delta and to evaluate alternative mitigation measures that can be implemented should such rise become a reality. In order to achieve this general objective, a three-dimensional groundwater model is developed for the Nile Delta region and the density-driven flow problem associated with seawater intrusion is solved using the well-established Groundwater Modeling System (GMS) package that includes the MODFLOW, MT3d and SEAWAT. After being successfully calibrated and verified the model is used to address the effect of sea level rise on groundwater resources in the Nile Delta under different scenarios ranging from very optimistic to very pessimistic predictions

Mots Clés : Climate change, Sea water intrusion, Nile delta coastal aquifer

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Page publiée le 16 avril 2020