Synthetic aperture radar interferometry (InSAR) facilitates the monitoring of the ground surface in order to detect and trace changes of altitude which result from phenomena such as volcanic patterns, tectonics, mining, landslides, oil and gas extraction], pumping water from underground reservoirs or floods, as well as glacier displacement. The potential of InSAR methods is demonstrated by the ability to simultaneously trace/monitor changes of ground surfaces with an area of approx. 48,000 km2 with an interval of 6–15 days and high precision (1-2 mm of displacement per year).

Technology