GNGTS 2019 - Atti del 38° Convegno Nazionale

220 GNGTS 2019 S essione 1.4 main anthropogenic factors. The combination of these natural and anthropogenic factors could have a strong negative impact on the territory, and further increase its vulnerability. The Po and Venetian plains (Fig. 1) are the main areas in the Italian peninsula affected by land subsidence as described in several studies (e.gArca e Beretta 1985; Baldi et al., 2009, 2011; Cenni et al., 2013; Corbau et al. , 2019; Fiaschi et al., 2018; Simeoni et al., 2017; Teatini et al., 2006, 2011; Zerbini et al., 2007). The monitoring of vertical movements in Italy began at the end of the 1800 by using spirit levelling techniques. Over the last century, satellite-based techniques such as GNSS and, more recently, Synthetic Aperture Radar Interferometry (InSAR) have been successfully used to measure land settlement with at increased spatio-temporal resolution. In this work, we present the results obtained from the study of the temporal and spatial variation of the velocity fields in the Italian peninsula. The present horizontal and vertical kinematic patterns has been reconstructed from data acquired by a network of permanent GNSS stations (Fig. 1). We will also discuss about the possible correlations between the variations of the velocity patterns, the active geological/geophysical processes (e.g. tectonic movements, soil compaction, rainfall trends) and the effects of anthropogenic activities. References Arca, S., Beretta, G.P., 1985. Prima sintesi geodetica-geologica sui movimenti verticali del suolo nell’Italia Settentrionale. Boll. Di Geod. E Sci. Aff. 44 (2), 125–156. Baldi P., Casula G., Cenni N., Loddo F. & Pesci, A.; 2009: GPS-based monitoring of land subsidence in the Po Plain (Northern Italy). Earth Planet. Science Letts., 288, 204-212, doi:10.1016/j.epsl.2009.09.023. Baldi, P., Casula, G., Cenni, N., Loddo, F., Pesci,A., Bacchetti, M.; 2011: Vertical and horizontal crustal movements in Central and Northern Italy . Boll.Soc.Geol.It. (Ital. J. Geosci.), 52, 4, 667-685. Cenni, N., Viti, M., Baldi, P., Mantovani, E., Bacchetti, M., Vannucchi, A.; 2013: Present vertical movements in central and northern Italy from GPS data: possible role of natural and anthropogenic causes . Journal of Geodynamics, 71, 74-85. doi: 10.1016/j.jog.2013.07.004. Corbau, C., Simeoni, U., Zoccarato, C., Mantovani, G., &Teatini, P., 2019. Coupling land use evolution and subsidence in the Po Delta, Italy: Revising the past occurrence and prospecting the future management challenges. Science of the Total Environment, 654, 1196–1208. https://doi.org/10.1016/j.scitotenv.2018.11.104. Fiaschi, S., Fabris, M., Floris, M., & Achilli, V., 2018: Estimation of land subsidence in deltaic areas through differential SAR interferometry: the Po River Delta case study (Northeast Italy). International Journal of Remote Sensing, 39:23, 8724-8745. Simeoni, U., Tessari, U., Corbau, C., Tosatto, O., Polo, P., & Teatini, P., 2017: Impact of land subsidence due to residual gas production on surficial infrastructures: The Dosso degli Angeli field study (Ravenna, Northern Italy). Engineering Geology, 229(February), 1–12. https://doi.org/10.1016/j.enggeo.2017.09.008. Teatini, P., Ferronato, M., Gambolati, G., & Gonella, M., 2006: Groundwater pumping and land subsidence in the Emilia-Romagna coastland, Italy: Modeling the past occurrence and the future trend. Water Resources Research, 42(1), 1–19. https://doi.org/10.1029/2005WR004242. Teatini, P., Tosi, L., & Strozzi, T., 2011: Quantitative evidence that compaction of Holocene sediments drives the present land subsidence of the Po Delta, Italy. Journal of Geophysical Research: Solid Earth, 116(8), 1–10. https:// doi.org/10.1029/2010JB008122. Zerbini, S., Richter, B., Rocca, F., Van Dam, T., & Matonti, F., 2007: ACombination of Space and Terrestrial Geodetic Techniques to Monitor Land Subsidence: Case Study, the Southeastern Po Plain, Italy. Journal of Geophysical Research: Solid Earth, 112(5), 1–12. https://doi.org/10.1029/2006JB004338.