Numerical assessment of the risk of GERD break on the downstream countries

Abstract The potential effects of Grand Ethiopian Renaissance Dam (GERD) failure on the downstream countries were numerically assessed. Flow discharge reaching Lake Nasser and the corresponding water levels were determined, and the inundated areas were defined as a result of GERD failure. High-resol...

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Main Authors: Ahmed M. Elbelasy, Abdel Hamed M. Khater, Eid H. Hassan, Amir S. Ibrahim
Format: Article
Language:English
Published: SpringerOpen 2024-02-01
Series:Applied Water Science
Subjects:
Online Access:https://doi.org/10.1007/s13201-024-02111-8
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author Ahmed M. Elbelasy
Abdel Hamed M. Khater
Eid H. Hassan
Amir S. Ibrahim
author_facet Ahmed M. Elbelasy
Abdel Hamed M. Khater
Eid H. Hassan
Amir S. Ibrahim
author_sort Ahmed M. Elbelasy
collection DOAJ
description Abstract The potential effects of Grand Ethiopian Renaissance Dam (GERD) failure on the downstream countries were numerically assessed. Flow discharge reaching Lake Nasser and the corresponding water levels were determined, and the inundated areas were defined as a result of GERD failure. High-resolution digital elevation model was developed with 2670-km length starting from GERD till Aswan High Dam. GERD’s reservoir, urban, and rural lands downstream of the GERD were presented using a numerical model. The modeled areas included parts of Ethiopia, Sudan, and Egypt, not to mention Toshka Spillway. The model areas were not divided into parts because of calculating the water levels at the existence of intermediate dams as model outputs. In case possible failure of GERD, Roseires and Sennar dams could collapse. Meanwhile, Merowe dam can sustain with the operation of its emergency spillway. Wave height reaches 100-m downstream of the GERD and 64-m and 31-m downstream of the Roseires and Merowe dams, respectively.
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spelling doaj.art-88b669aa304a4c82819e22b30a4d9ad22024-03-10T12:19:10ZengSpringerOpenApplied Water Science2190-54872190-54952024-02-0114312210.1007/s13201-024-02111-8Numerical assessment of the risk of GERD break on the downstream countriesAhmed M. Elbelasy0Abdel Hamed M. Khater1Eid H. Hassan2Amir S. Ibrahim3National Water Research CenterNational Water Research CenterNational Water Research CenterCivil Engineering Department, Benha Faculty of Engineering, Benha UniversityAbstract The potential effects of Grand Ethiopian Renaissance Dam (GERD) failure on the downstream countries were numerically assessed. Flow discharge reaching Lake Nasser and the corresponding water levels were determined, and the inundated areas were defined as a result of GERD failure. High-resolution digital elevation model was developed with 2670-km length starting from GERD till Aswan High Dam. GERD’s reservoir, urban, and rural lands downstream of the GERD were presented using a numerical model. The modeled areas included parts of Ethiopia, Sudan, and Egypt, not to mention Toshka Spillway. The model areas were not divided into parts because of calculating the water levels at the existence of intermediate dams as model outputs. In case possible failure of GERD, Roseires and Sennar dams could collapse. Meanwhile, Merowe dam can sustain with the operation of its emergency spillway. Wave height reaches 100-m downstream of the GERD and 64-m and 31-m downstream of the Roseires and Merowe dams, respectively.https://doi.org/10.1007/s13201-024-02111-8GERDNile RiverLake NasserAHDDEMNumerical model
spellingShingle Ahmed M. Elbelasy
Abdel Hamed M. Khater
Eid H. Hassan
Amir S. Ibrahim
Numerical assessment of the risk of GERD break on the downstream countries
Applied Water Science
GERD
Nile River
Lake Nasser
AHD
DEM
Numerical model
title Numerical assessment of the risk of GERD break on the downstream countries
title_full Numerical assessment of the risk of GERD break on the downstream countries
title_fullStr Numerical assessment of the risk of GERD break on the downstream countries
title_full_unstemmed Numerical assessment of the risk of GERD break on the downstream countries
title_short Numerical assessment of the risk of GERD break on the downstream countries
title_sort numerical assessment of the risk of gerd break on the downstream countries
topic GERD
Nile River
Lake Nasser
AHD
DEM
Numerical model
url https://doi.org/10.1007/s13201-024-02111-8
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