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Politecnico di Milano (2020)

A WebGIS to show the impact of the Grand Ethiopian Renaissance dam on agriculture in Egypt

KHEDER, SHERIF

Titre : A WebGIS to show the impact of the Grand Ethiopian Renaissance dam on agriculture in Egypt

Auteur : KHEDER, SHERIF

Université de soutenance : Politecnico di Milano

Grade : Laurea Magistrale 2020

Résumé
Ethiopia has begun developing their significant hydropower potential with the construction of the Grand Ethiopian Renaissance Dam (GERD) on the Blue Nile River to facilitate local and regional growth. The GERD, located just upstream of the border with Sudan, is the first dam ever to be constructed directly on the main stem of the Blue Nile and will become the largest dam in Africa. The dam filling stage will have clear implications on downstream flows in Sudan and Egypt, complicated by evaporative losses, climate variability, and climate change. In this thesis, remote sensing imagery has been used in order to measure the impact of GERD on downstream area. A WebGIS application has been implemented to assess the effects of the dam on agriculture in Egypt specially Delta region, which is the last region before Nile River mouth. The application is calculating Enhanced Vegetation Index (EVI) for different regions downstream during past 20 years. Also, the developed application has a dynamic shareable interface that can be used either by experts or non-experts. On the other hand, the water resources and agricultural characteristics of Delta region are defined then, various analysis, using remote sensing, evaluated the vegetation level over Delta Region during last 20 years. The results show that the vegetation level in the middle of the Delta has minor changes. While, in the East and West of the Delta the vegetation level has incrementally increased to the double over the last 20 years. This increase is due to the reclamation of desert depending on underground water. Furthermore, the results show that the developed Web-based platform could promote a more comprehensive understanding of the problem, its outcomes, and the damage it could inflict on a given area.

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