الفهرس 
LITERA TURE REVIEWOnly 14 pages are availabe for public view
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Abstract
This study is aimed to develop a computer software system that
makes use of the historical data of the River Nile to identify the potential
location of the hydraulic problems, due to water management policy and the
new construction effect, using the GIS technology. During the development
of this system, three different modules are developed to perform three
different tasks.
The first module was developed to handle data input and output for
the historical data that are available at Nile Research Institute (NRI). This
module was developed using database management information system to be
able to handle such huge amount of data.
The second module was developed for water surface profile
calculation that corresponds to certain water management parameters (reach
discharges and reach downstream water levels). The water surface profile
calculation is conducted using multi input-single output rating curve method.
The third module was developed for a three dimensional GIS
analysis to answer the required questions and highlight the potential location
of the hydraulic problems that corresponds to the calculated water surface
profile. Performing a three dimensional GIS analysis will answer the required
questions and identify the potential location of the inquired problem.
As an application for the system, two case studies at Sharona, just
upstream ofMaghagha city, and at El-Zawya, just upstream Menia city, were
conducted. These sites are suffering from navigational bottlenecks as there
are many submerged islands. The system application at these sites includes
the input of the new surveyed cross sections. The system output are contour
maps for both bed elevations and depths. It also includes the potential
location of the navigational bottlenecks. The system output also include the
volume of dredging if it is desired to do so.