Integration of SAR Interferometry with the classical geodetic techniques for ground deformation monitoring at the Phlegrean fields (Naples, Italy)

Phlegrean Fields are an active volcanic area, interested by historical activity as well as by strong bradyseismic crises in the recent past. Ground deformation monitoring of the area is carried out by the Osservatorio Vesuviano by different approaches: spirit leveling network, GPS and tiltmetric continuous networks. Also allowing centimetric and sub-centimetric accuracies, these networks give information only on a certain number of points. In order to get also an areal information on the deformation field acting in the area, SAR Interferometry (InSAR) has been used in this case: the integration of InSAR data with classical techniques data gave very encouraging results. Comparison of data among these different methods will be hereby presented and discussed