From earthquakes and volcanoes to landslides and agriculture, radar satellites have revolutionised our ability to monitor the active processes changing the surface of the earth.
Radar satellite missions can measure millimetre-scale changes in Earth’s surface following an earthquake. On 24 August 2014, an earthquake struck California’s Napa Valley. By processing two images from the Sentinel-1A radar satellite, which were acquired on 7 August and 31 August 2014 over this wine-producing region, an ‘interferogram’ was generated showing ground deformation.
CGS researchers at the Leeds based Centre for the Observation and Modelling of Earthquakes, Volcanoes and Tectonics (COMET+) are at the forefront for using this technology to understand the active processes shaping the surface of the earth.