Introduction to Interferometric Synthetic Aperture Radar and Its Application in Forestry and Sinkhole Mapping
Instructors: Dr. Chunli Dai, Dr. Changhyun Choi Dr. Sanduni Disanayaka Mudiyanselage. Description: This workshop will provide a brief introduction to Interferometric Synthetic Aperture Radar (InSAR) and its application for forest canopy height estimation. Participants will learn the fundamental principles of InSAR, including SAR geometries and the relationships between range change, phase change, and topography. InSAR preprocessing steps will be demonstrated such as coordinate conversion, coregistration, and terrain correction. The workshop will also introduce a range of SAR data sources and portals, including the Alaska Satellite Facility, to guide users in acquiring relevant datasets. Various InSAR techniques have been explored in the literature for mapping forest canopy height, including multi-polarization method, multi-baseline method, SAR tomography, as well as single-baseline single-polarized method. Case studies for forest height estimation will be demonstrated. Additionally, the workshop will demonstrate InSAR’s application in detecting land surface deformation, with case studies focused on sinkhole mapping in Florida. More details here.
