Comparison of DInSAR and persistent scatterer interferometry for ground-motion monitoring in the Venice lagoon

The city of Venice (Italy) and its surrounding lagoon constitutes a unique worldwide environment vulnerable to loss of surface elevation due to land subsidence and sea level rise. Locally, the city of Venice, shows a present general stability with rates averaging between -1 to +1 mm/year. This work presents results over Venice area, derived by the two interferometric techniques (DInSAR and Permanent Scatterers Interferometry). The use of the two techniques allows us to understand the complementarity of both techniques and their limitations.