Research Projects

Typically, coalmine subsidence occurs due to extraction of coal by underground mining. Besides, land surface deformation occurs in and around opencast mines and overburden dump areas, which lead to severe mass wasting and slope failure. The common traditional techniques for measuring land surface deformation by ground-based measurement techniques using precise levelling, total station and global navigation satellite system (GNSS), can yield point-based measurements. Spaceborne SAR (Synthetic Aperture radar) interferometric technique provides spatially continuous measurement of land surface deformation over a large area at centimetre to sub-centimetre level precision. This research will focus on spaceborne differential interferometric SAR (DInSAR) data analysis for monitoring land surface deformation due to extraction of coal by underground and opencast mining techniques and their impact assessment.