Subsidence Monitoring Along Ravenna Coastal Area (Northern Italy) by Insar and GPS Data

We analyse SAR and GPS data to constrain the land subsidence induced by natural and anthropogenic activity along the northern Adriatic coasts (Northern Italy). We develop a procedure in order to cross-validate our results by comparing the retrieved independent InSAR measurements with GPS ground displacements. The results show a good agreement between the different geodetic techniques both in terms of deformation rate and time series. We detected several localized subsidence phenomena with rates of about 2–4 mm/yr along the investigated area likely due to aquifer overexploitation, hydrocarbon extraction activities and natural compaction of the sedimentary basin.