Satellite and drone-borne synthetic aperture radar data for ground deformation monitoring over the Vazante area (Brazil)

Differential Synthetic Aperture Radar Interferometry (DInSAR) represents by now an established tool for the remote monitoring of the ground displacements occurring on our planet. In addition, this technique is benefiting from the recent advancements in radar, navigation and aeronautical technologies. These indeed allow us on one side to avail of wide-coverage SAR satellites to observe larger and larger areas of the Earth’s surface. On the other side, they make it possible to profit of cost-efficient aerial SAR systems, whose operative flexibility can play a crucial role to observe phenomena possibly hidden to satellite sensors and for the prompt monitoring in emergency scenarios. In this work, we provide the results of a ground deformation analysis performed over the municipality of Vazante, Brazil, based on the DInSAR processing of the data acquired by both the space-borne C-band Sentinel-1A and the drone-borne multi-frequency (P/L/C-bands) DBSS SAR systems.