Breakwater settlement monitoring with InSAR data

This paper presents a use case of the Persistent Scatterer Interferometry (PSI) technique apply to Civil Engineering to monitor the dikes settlement on the Port of Barcelona. A geostatistical analysis of the two available datasets of PSI data have been made on a Geographic Information System to obtain a continuous deformation surface. This approach allows us to study the different subsidence velocities that occur within the sections of the breakwater which are in a different consolidation phase. The two datasets of InSAR data were obtained from different satellites and different time periods so a new methodology was developed for concatenating the two measurements a posteriori. Finally, InSAR and GPS measurement are compared to validate the obtained results.