Textbook in PDF format Interferometric Synthetic Aperture Radar (InSAR) technology is an operational tool for measuring and monitoring coastal urban stability, including the disappearance of coastal cities. This book provides a comprehensive understanding of how to track climate change impacts on coastal dynamics and their consequent effects on coastal geomorphological changes. Advanced InSAR techniques are discussed, including case studies focusing on the coastal urban areas of Alexandria, Egypt, and Singapore, as well as other potential coastal cities