الفهرس 
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Abstract
This study aims to assess the association between air pollutants (NO2, SO2, and Particulate matter) and land surface temperature (LST) at Nile Delta region by using remote sensing and GIS techniques. Therefore, the available Landsat thermal bands (band 6.1) have been collected during the period 2000 and 2009. The images were processed using ENVI 4.7 software to estimate the mean of LST for the cold and warm seasons at Nile Delta. The published data of NO2, SO2 and PM10 in this study had been estimated at twenty sites distributed in study area. The correlation between the LST and these pollutants was worked out using SPSS software. The results indicated that, the correlation between NO2 and LST was positive during warm months, while it was negative during cold season. whereas, the results of SO2 show that, the correlation was negative during both warm and cold months. PM10 shows positive correlation with temperature during both warm and cold seasons. Two case studies related to the impact climate change on the cultivated lands at the Nile Delta region were represented.
First Study: Determination of Agro-Climatic Zones in Egypt Using A Robust Statistical Procedure.
The results identified 8 agro-climatic zones. These zones were: (1) Alexandria and Damietta; (2) Dakahlia and North Sinai; (3) Kafr El-Sheikh and El-Gharbia; (4) Ismailia, El-Sharkia and El-Monofia; (5) El-Qalubya, Beni Sweif and El-Minia (6) Giza, Qina, Sohage and El-Wadi El-Gadded; (7) El-Behira and El-Fayoum and (8) Assuite and Aswan. This classification clearly implied that water requirements are similar within each zone and different between zones. Such zoning will increase the ability of the Egyptian policy makers to prepare the appropriate developmental policies as a result of the availability of proper information on each zone.
Second study: Assessing the Impact of Climate on Crop Water Needs in Egypt The Cropwat Analysis of Three Districts in Egypt.
The potential impact of climate change on crop seasonal evapotranspiration (ETo) was evaluated using the CROPWAT model. Wheat, maize and cotton were selected for the study since they represent different growing seasons and water needs. The evaluation was carried out in the three main agricultural regions of Egypt: the Delta (Lower Egypt), represented by the Kafr El-Sheikh Governorate; Middle Egypt, represented by the Giza Governorate; and Upper Egypt represented by the Sohage Governorate Climate change could therefore increase crop water use and reduce yields. A number of adaptation policies are suggested in this study.