SAR Interferometry Processing based on Snap-Stamps tools: the case study of San Leo

San Leo is a historic town in the Emilia Romagna region of Northern Italy, located on top of a rock massif, overlaying a softer clayey layer. The San Leo rock mass is prone to landslides as a result of its formation, and many landslides have occurred in this area over time. Following a major landslide occurred in February 2014, field surveys were used to identify the major discontinuities, and an integrated monitoring system was put in place to keep track of them in the San Leo cliff's north-eastern sector. In this study, a Persistent Scatterer Interferometry technique based on the open-source tools SNAP and StaMPS is employed and explained. The main goal is to identify persistent scatterers and obtain ground deformation maps and displacement velocities for them in the study area, San Leo. From 2015 through 2021, 600 Sentinel-1 Level-1 Single Look Complex products were used, with 300 acquisitions in ascending orbit and 300 acquisitions in descending orbit. Finally, the study is complemented by a brief evaluation of ground-based and remote sensed data.