Thanks to the simultaneous data acquisition with two satellites, errors from temporal decorrelation and atmospheric disturbances can be minimized. This enables the generation of vertical and horizontal structure information with unprecedented resolution and accuracy on a global scale.
The repeated tomographic observations will provide a unique data base for the scientific monitoring of internal structure dynamics in vegetation, soil and ice. A further important application is the generation of both a digital surface and a digital terrain model, thereby complementing and updating the digital elevation data acquired by TanDEM-X. The 3-D Structure Mode therefore optimally fulfills the requirements of a large number of scientific applications pertaining to the biosphere, hydrosphere and cryosphere.