Persistent Scatterer Interferometry Processing of COSMO-SkyMed StripMap HIMAGE Time Series to Depict Deformation of the Historic Centre of Rome, Italy
Open Access
- 14 December 2014
- journal article
- research article
- Published by MDPI AG in Remote Sensing
- Vol. 6 (12), 12593-12618
- https://doi.org/10.3390/rs61212593
Abstract
We processed X-band COSMO-SkyMed 3-m resolution StripMap HIMAGE time series (March 2011–June 2013) with the Stanford Method for Persistent Scatterers (StaMPS), to retrieve an updated picture of the condition and structural health of the historic centre of Rome, Italy, and neighbouring quarters. Taking advantage of an average target density of over 2800 PS/km2, we analysed the spatial distribution of more than 310,000 radar targets against: (1) land cover; (2) the location of archaeological ruins and restoration activities; and (3) the size, orientation and morphology of historical buildings. Radar interpretation was addressed from the perspective of conservators, and the deformation estimates were correlated to local geohazards and triggering factors of structural collapse. In the context of overall stability, deformation was identified at the single-monument scale, e.g., for the Roman cistern and exedra in the Oppian Hill. Comparative assessment against InSAR processing of C-band imagery (1992–2010) published in the literature confirms the persistence of ground motions affecting monuments and subsidence in southern residential quarters adjacent to the Tiber River, due to the consolidation of compressible deposits. Vertical velocity estimated from COSMO-SkyMed PS exceeds −7.0 mm/y in areas of recent urbanization.This publication has 19 references indexed in Scilit:
- How to assess landslide activity and intensity with Persistent Scatterer Interferometry (PSI): the PSI-based matrix approachLandslides, 2012
- Monitoring land subsidence and its induced geological hazard with Synthetic Aperture Radar Interferometry: A case study in Morelia, MexicoRemote Sensing of Environment, 2011
- Long-term deformation analysis of historical buildings through the advanced SBAS-DInSAR technique: the case study of the city of Rome, ItalyJournal of Geophysics and Engineering, 2011
- COSMO-SkyMed an existing opportunity for observing the EarthJournal of Geodynamics, 2010
- Subsidence induced by urbanisation in the city of Rome detected by advanced InSAR technique and geotechnical investigationsRemote Sensing of Environment, 2008
- Two‐scale surface deformation analysis using the SBAS‐DInSAR technique: a case study of the city of Rome, ItalyInternational Journal of Remote Sensing, 2008
- Geotechnical studies for foundation settlement in Holocenic alluvial deposits in the City of Rome (Italy)Engineering Geology, 2007
- A new method for measuring deformation on volcanoes and other natural terrains using InSAR persistent scatterersGeophysical Research Letters, 2004
- Permanent scatterers in SAR interferometryIEEE Transactions on Geoscience and Remote Sensing, 2001
- Seismic response in archaeological areas: the case-histories of RomeJournal of Applied Geophysics, 1999