naeimeh ahmadi; zahra mousavi; zohreh mosoumi
Volume 10, Issue 3 , January 2019, , Pages 33-52
Abstract
Subsidence is a downward motion of ground surface with small horizontal displacement vector. It may happen due to natural factors or human activities. In Iran, subsidence may occur because of the human activities and excessive extraction of groundwater resources. In this study, we applied Synthetic aperture ...
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Subsidence is a downward motion of ground surface with small horizontal displacement vector. It may happen due to natural factors or human activities. In Iran, subsidence may occur because of the human activities and excessive extraction of groundwater resources. In this study, we applied Synthetic aperture Radar Interferometry (InSAR) to investigate the rate of subsidence. We estimated the rate of subsidence in Khoramdareh plain using Permanent Scattering (PS) for the duration time 2003-2005. The mean velocity map indicated that the subsidence is occurring with the rate of 35 mm/yr in direction of Satellite Line of Sight. Afterward, we used Geospatial Information System (GIS) to evaluate subsidence relation with agricultural lands and wells in the case study area. Also the risks of subsidence are investigated in the area using GIS abilities. The results show some parts of the railways, main roads and highways are affected by subsidence.
