Spatiotemporal Evolution of Ground Subsidence and Extensional Basin Bedrock Organization: An Application of Multitemporal Multi-Satellite SAR Interferometry

Since the early 1990s, European (ESA) and Italian (ASI) space agencies have managed distributed a huge amount of satellite-recorded SAR data to research community private industries. Moreover, availability advanced cloud computing services implementing different multi-temporal interferometry techniques allows generation deformation time series from massive images. We exploit information provided by large PS dataset determine temporal trend ground relative rate with millimetric accuracy analyze spatial distribution land subsidence induced water pumping deep confined aquifer in Northern Valle Umbra Basin (Central Italy), exploiting 24 years Permanent Scatterers—interferometric archives. The images were acquired between 1992 2016 satellites ERS1/2 ENVISAT, Sentinel 1 ESA missions COSMO-SkyMed ASI mission. observed velocities geometries 2016, displacements more than 70 cm up 55 mm/yr. results suggest that shape position surface displacement are controlled fault activity hidden under valley deposits.