F. Cigna
Persistent Scatterer Interferometry Processing of COSMO-SkyMed StripMap HIMAGE Time Series to Depict Deformation of the Historic Centre of Rome, Italy
Cigna, F.; Lasaponara, R.; Masini, N.; Milillo, P.; Tapete, D.
Authors
R. Lasaponara
N. Masini
P. Milillo
D. Tapete
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.
Citation
Cigna, F., Lasaponara, R., Masini, N., Milillo, P., & Tapete, D. (2014). Persistent Scatterer Interferometry Processing of COSMO-SkyMed StripMap HIMAGE Time Series to Depict Deformation of the Historic Centre of Rome, Italy. Remote Sensing, 6(12), 12593-12618. https://doi.org/10.3390/rs61212593
Journal Article Type | Article |
---|---|
Publication Date | Dec 15, 2014 |
Deposit Date | Feb 10, 2015 |
Publicly Available Date | Feb 17, 2015 |
Journal | Remote Sensing |
Publisher | MDPI |
Peer Reviewed | Peer Reviewed |
Volume | 6 |
Issue | 12 |
Pages | 12593-12618 |
DOI | https://doi.org/10.3390/rs61212593 |
Keywords | Synthetic aperture radar, Persistent scatterer interferometry, COSMO-SkyMed, Deformation monitoring, Subsidence, Rome, Cultural heritage. |
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http://creativecommons.org/licenses/by/4.0/
Copyright Statement
© 2014 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license
(http://creativecommons.org/licenses/by/4.0/).
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