الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Gravity monitoring is used to detect the groundwater storage changes through the traditional techniques, which are very difficult due to high cost and strong labor intensity. The system Gravity Recovery and Climate Experiment (GRACE) measures Terrestrial Water Storage (ΔTWS) for a regional area; it is the total mass of water found in the soil column (such as, surface water, soil moisture, snow, and groundwater). GRACE techniques are economical and faster than the traditional techniques, and has more inclusive and continued overage compared with traditional methods. Data from GRACE are obtainable from 2003 to 2011for the research area. In this study, Grace Data was used to calculate the changes in groundwater storage (ΔGWS) in both 2005 and 2010 in Kafr El-Sheikh, Desouk and fwa by selecting four random points in each of them and calculating the terrestrial water storage from GRACE, though global land date assimilations systems (GLDAS) soil moisture was calculated and subtracted from the terrestrial Water Storage to calculate the groundwater. In this study, data on the changes in groundwater reserves were obtained by contour maps and thus the data obtained from GRACE were verified by comparing them where the maximum values and the lowest values of the differences respectively are 20.76 and -3.86mm.Through the methodology that applied, The governorate of Kafr El-Sheikh was subject to rechargeable in the centers that studied. After that, the relationship between land use and land cover and increase in groundwater level was studied, so classifications were made for the study area to know whether the increase in urban area has an effect in increasing Groundwater level.The land use / land cover (LULC) has a great importance in understanding the interactions of human activities with the surrounding environment and it is necessary to detect changes that occur continuously to preserve the environment. There are a major changes in land use that impact groundwater are taking place, as a result of population growth, increasing and changing food demands .In this study, supervised classification, unsupervised classification and display of NDVI, NDBI and SAVI indices were applied on four Landsat images through the years (2005, 2010, 2015 and 2018) for Kafr Elsheikh government and accuracy assessment applied on three classifications. It was concluded that supervised classifications are higher than others. After classification comparisons, it was indicated that there is a decline in agricultural land with a significant increase in settlement land during 2010, 2015, there is a relation between land use / land cover and ground water. Directional variations were executed on urban areas of Desouk city, the general way of spatial development was observed to the south and east trend over the periods from 2005 to 2010 and from 2010 to 2018 was in the south trend. The city ultimate spatial increase during the total studied period from 2005 to 2018 was 25.7 km2 in the south direction, there is a close correlation between urban change and rising groundwater because each of them has the same increase in the south direction.