Monitoring of small islands by satellite InSAR data: the Aeolian archipelago

In recent years, Multi-Temporal InSAR (MT-InSAR) techniques have become popular as an effective way of monitoring volcanic areas and the ground deformations caused by their activity. This work used MT-InSAR techniques to investigate Lipari, Salina, and Vulcano islands belonging to the Aeolian archipelago (southern Tyrrhenian Sea, Italy). In particular, three distinct approaches were applied and compared: PS, SBAS, and IPTA. These techniques were compared with in-situ measurements from the GNSS network managed by INGV-OE and private operators considering different metrics. The findings indicate that the combination of these three MT-InSAR techniques has both advantages and disadvantages for monitoring these complex areas.