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العنوان
Morphological and Hydrodynamic Modeling for Nile River /
المؤلف
Meky, Marwa EL-Sayed Ahmed.
هيئة الاعداد
باحث / مروة السيد احمد مكى
مشرف / باكيناز عبد العظيم زيدان
مناقش / هشام بخيت محمد
مناقش / احمد مصطفى البلاسى
الموضوع
Irrigation and Hydraulics Engineering.
تاريخ النشر
2022.
عدد الصفحات
161 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الهندسة المدنية والإنشائية
تاريخ الإجازة
11/10/2022
مكان الإجازة
جامعة طنطا - كلية الهندسه - Irrigation and Hydraulics Engineering
الفهرس
Only 14 pages are availabe for public view

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from 191

Abstract

The Nile River is the greatest and longest natural alluvial river in the world, with 6,853 kilometers length. The Nile River is a natural alluvial river. In Egypt, The Nile River extends for about 1200 km between Aswan and the Mediterranean Sea, with Nile Delta and two branches Damietta and Rosetta. The hydrological scheme of the Nile River has two main advantages a low clear flow and a flood flow loaded with suspended matter which lasts for four months every year. The flow rate (for both cases; high and low flows), sediment concentration variation, human interventions and the effect of new structures have major contribution for these changes. Construction of the High Aswan Dam (AHD) has stopped simultaneous flooding occurrences. The Nile River from Aswan to Cairo is subdivided into four reaches. The study aims to illustrate the hydrodynamic simulations and morphological changes in a part in the fourth reach, which located between Assiut Barrage (kilometer 544.500 D.S. the Aswan Dam) and the Delta Barrage (kilometer 954.500). This research contains two techniques, where each technique was applied to determine the morphological changes in a part in the fourth reach. First technique, morphological changes were examined using Remote Sensing (RS) and Geographical Information System (GIS) techniques for a period between 1982 and 2019. A comparative study was performed among three image classification techniques; onscreen digitizing, maximum likelihood classification and histogram thresholding techniques.