A Ph.D. student from the Geosensing Systems Engineering & Sciences (GSES) graduate research program successfully defended his dissertation. Ning Cao defended on, “Advanced SAR Interferometry Methods for Ground Displacement Estimation from Spaceborne and Airborne Platforms.” Ground deformation measurements are important for monitoring and improving understanding of many natural geological phenomena or human-induced events, such as earthquakes, volcanoes, landslides, and land subsidence. Therefore, ground deformation studies can provide critical information for disaster prevention and protection of people and property. Interferometric synthetic aperture radar (InSAR) is a powerful technique for monitoring ground deformation phenomena.
In Ning's dissertation, several problems with the current advanced InSAR techniques were expressed, and corresponding approaches were proposed to solve them. He mainly focused on studying subsidence and landslide phenomena, producing results that can be used to monitor land subsidence in high spatial and temporal resolutions and to assess the impacts on civil infrastructure. The research also improves understanding of landslides to provide critical predictions and warnings.
Ning will be working as a postdoctoral researcher with NCALM/GSES at the University of Houston. Ning’s advisor was Dr. Hyongki Lee.