الفهرس 
CHAPTER ONE: INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Wadi Abbadi is one of the most important basins in Upper Egypt, it extends NE-SW
direction along Idfu-Marsa-Alam road. It covers an area of about 6000 km2. It is bounded by
longitudes 32o 50’ 00” and 34o 05’ 00” E and latitudes 24o 53’ 00” and 25o 34’ 00” N. This
area is one of the promising areas in Egypt for future sustainable development especially land
reclamation, industry and touristic expansions. It is located in an arid region so that, the
basin could receive a few amount of rainwater during rainy storm events.
In the present study remote sensing and GIS techniques were used to evaluate water
resources. Remote sensing techniques were used to build up a land cover map. GIS
techniques were used for the extraction of drainage network, calculation of the morphometric
parameters for the obtained network and assessment of flash flood hazard.
Surface water acts as a recharging source for groundwater aquifers through seepage
from Nile River and Abbadi canal. Groundwater conditions in the study area were discussed
through hydrogeological data of the main groundwater aquifers, namely Quaternary aquifer,
Upper–Cretaceous aquifer and fractured erP aquifer. Quaternary alluvial aquifer occupies
delta of wadi Abbadi, Upper Cretaceous represent the main ground water resource in the
study area and the fractured baPePent Pre-Cambrian aquifer represent the weathered zone of
the basement rocks. The main recharge of groundwater is direct precipitation, return flow
after irrigation and flash floods coming from the mountainous region. It is noticed that the
water level in Abbadi canal is higher than the free water level of Quaternary aquifer, which
means that the Quaternary aquifer is recharged from the seepage of Abbadi canal and the
infiltrated irrigation and runoff water.
Groundwater in the study area belongs to fresh and slightly saline type.
Hydrogeochemical modelling