الفهرس 
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Abstract
This study aimed to analyze the shoreline change pattern on the long term during the period between 1985 to 2015 at the coastal strip of the Nile Delta Promontories and the impact of these protective structures on the coastal area. This was accomplished by the automated delineation of the shorelines covering this period from remote sensing imagery. The images were from the Landsat 5 and 8 satellites. The shorelines were extracted using the MNDWI index which has been proven to be the best fitting index for shoreline delineation by previous studies. The extracted shorelines were manipulated through the Digital Shoreline Analysis System (DSAS) software in order to calculate the different change rates during different time periods according to the time of hard structures construction. These rates were compared with other sediment physical characteristics to show a relation between them. The rates were compared to grain texture for the past thirty years, heavy minerals content and radioactivity of recent sediment samples taken at different points through the study area.