الفهرس 
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Abstract
The main objectives of this study are to investigate the influence of
hydrological and morphological changes on the different parameters such
as channel plan form, islands formation, changes of channel length and
width, meander parameters, development of meander, bends migration and
erosion and deposition near the embankments. This study is focused on
Rosetta Branch which is one of the Nile Delta two branches Rosetta Branch
and Damietta Branch. The Rosetta Branch was selected to perform this
study because of many reasons. First, Rosetta Branch is considered more
sinuous and of different characteristics from those of the Damietta Branch
and the River Nile. Also there were no similar studies available for the
branch. There is a need for this study to develop the branch for navigation,
and to protect water structures and river banks. Finally, this study can be
used as a reference for future prediction of the morphological changes of the
branch. This study used Caris (GlS) software to digitize and analyze
hydrographic survey maps, hydrological data, and other types of data before
and after HAD. The digitized maps were used to monitor morphological
changes of Rosetta Branch. Computer programs were used to compile all
types of data, make the necessary computations and analyze different
parameters changes before and after HAD. Due to hydrological,
environmental and morphological changes. it was observed that the areas of
the islands in the branch were increased after HAD. Rosetta Branch is tending towards a single channel after HAD construction due to many of
islands are being connected to the main banks Also, khors along Rosetta
Branch experienced some changes after HAD such as formation of some
new khors and closure of some khors specially existing near the inner
curves. The analyzed khor changes also include the geometrical changes of
the existing khors. Some relations were derived to relate different meander parameters for Rosetta Branch.