GNGTS 2024 - Atti del 42° Convegno Nazionale

Session 1.1 GNGTS 2024 Figure 1 – a) A-DInSAR map resultng from the processing of April 14, 2010, to November 30, 2021, descending orbit images; b) tme series of average displacements (i.e., spatally averaged over the studied area, within city walls) showing seasonal fuctuatons around the trendline; c) tme series of opportunely selected, normalized vertcal displacement values in which seasonal oscillatons have been removed. Each monthly value is calculated as the average of the values recorded in the previous and following six months. The red circle outlines an observed anomaly in the subsidence trend. The two vertcal lines highlight the tme range August-November 2016, in which the Amatrice-Norcia seismic sequence occurred.