الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The accurate detection of land subsidence rates in Western Desert of Egypt (Yidma / Alamein Concession) is important to identify damage prone areas and provide decision-makers with useful information. Meanwhile, no precise measurements of land subsidence have been undertaken within Western Desert of Egypt to evaluate its hazard in relationship to oil and gas extraction. In the present study, ground subsidence in the Western Desert of Egypt was investigated using Differential Interferometry Synthetic Aperture Radar (DInSAR) technique. A total of 8 Sentinel-1 images obtained between August 29th, 2017 and January 15th,2019 were used. Using these 8 SLC SAR images, a total of 18 interferogram pairs were generated. To reduce the temporal decorrelation, only interferogram pairings with good coherence were chosen for this investigation. The final study was carried out at a location with available geological and hydrological data. The vertical displacement rate across the research region was calculated to be -20.96 mm/year during the examined period, and retalted mainly to non-tectonic occurrences. The results of the DInSAR data were compared with the oil production rate, which showed high correlations, expected to have larger subsidence rate by increasing the oil pumping.