SAR Interferometry

SAR Interferometry is a technique using synthetic aperture radar (SAR) satellites to measure surface change and topography by capturing images of the Earth's surface from space. By comparing two or more radar images taken at different times, it detects tiny differences in the reflected signals, which correspond to ground movements or elevation changes. This method allows scientists to monitor phenomena like earthquakes, volcanic activity, landslides, and land subsidence with high precision, even through clouds and at night, providing valuable insights into Earth's dynamic processes.