From ERS-1/2 to Sentinel-1: two decades of subsidence monitored through A-DInSAR techniques in the Ravenna area (Italy) |
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| Authors: | Simone Fiaschi Serena Tessitore Roberta Bonì Diego Di Martire Vladimiro Achilli Sven Borgstrom |
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| Institution: | 1. Department of Geosciences, University of Padua, Via G. Gradenigo 6, Padua 35131, Italy;2. Department of Earth, Environment and Resources Sciences, Federico II University of Naples, Largo San Marcellino 10, Naples 80138, Italy;3. Department of Earth and Environmental Science, University of Pavia, Via Ferrata 1, Pavia 27100, Italy;4. Department of Civil, Environmental and Architectural Engineering, University of Padua, Via Marzolo 9, Padua 35131, Italy;5. INGV, Osservatorio Vesuviano, Via Diocleziano 328, Naples 80124, Italy |
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| Abstract: | Land subsidence due to underground resources exploitation is a well-known problem that affects many cities in the world, especially the ones located along the coastal areas where the combined effect of subsidence and sea level rise increases the flooding risk. In this study, 25 years of land subsidence affecting the Municipality of Ravenna (Italy) are monitored using Advanced Differential Interferometric Synthetic Aperture Radar (A-DInSAR) techniques. In particular, the exploitation of the new Sentinel-1A SAR data allowed us to extend the monitoring period till 2016, giving a better understanding of the temporal evolution of the phenomenon in the area. Two statistical approaches are applied to fully exploit the informative potential of the A-DInSAR results in a fast and systematic way. Thanks to the applied analyses, we described the behavior of the subsidence during the monitored period along with the relationship between the occurrence of the displacement and its main driving factors. |
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| Keywords: | InSAR Sentinel-1 subsidence Ravenna time series |
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