InSAR and landslides in Western Canada: Reconciliation of earth and sky скачать в хорошем качестве

InSAR and landslides in Western Canada: Reconciliation of earth and sky

Sohrab Sharifi, PhD Student (Geotechnical Engineering), presents his talk "InSAR and landslides in Western Canada: Reconciliation of earth and sky". Abstract: Remote sensing methods are gaining a considerable share in risk-mitigating approaches for geohazards such as landslides. In light of satellite imagery with high-resolution acquisitions, practitioners and researchers are now trying to integrate InSAR into monitoring programs more than ever. In this presentation, a brief overview of the theory of InSAR analysis is presented followed by the early results obtained for the Thompson River Valley and Oldman River Dam, both areas subjected to ground movements. More than 10 slides are identified along a 1-km section of Thompson River Valley, British Columbia, which is a critical corridor for the Canadian railway industry. Several pre-sheared weak seams were also encountered beneath the Oldman River Dam, Southern Alberta, in the early stages of construction. In this talk, the feasibility of employing InSAR technology for these two study areas is discussed along with challenges and limitations. Speaker Bio: Sohrab Sharifi is a PhD student at the University of Alberta, working under the supervision of Dr. Michael Hendry and Dr. Renato Macciotta. He completed his undergraduate and master’s studies at the Ferdowsi University of Mashhad in Iran where he participated and led various research projects dedicated to the application of novel technologies (e.g., soft computing, image processing) in Geotechnical Engineering. Sohrab started his doctoral studies in 2019 with a focus on enhancing strategies for monitoring landslides in Western Canada. In the first phase of his research, he developed a mathematical framework to evaluate different filtration algorithms for improving the performance of early-warning systems. He is currently working on a specific sub-category of earth observation methods, interferometric synthetic-aperture radar (InSAR), and its relevance in the safe operation of infrastructures exposed to landslides.