Persistent scatterer interferometry processing of COSMO-SkyMed StripMap HIMAGE time series to depict deformation of the historic centre of Rome, Italy

Cigna, Francesca; Lasaponara, Rosa; Masini, Nicola; Milillo, Pietro; Tapete, Deodato. 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. 10.3390/rs61212593

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Official URL: http://www.mdpi.com/2072-4292/6/12/12593

Abstract/Summary

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.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.3390/rs61212593
ISSN:	20724292
NORA Subject Terms:	Earth Sciences Electronics, Engineering and Technology Archaeology
Date made live:	15 Apr 2015 15:11 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/510617

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.3390/rs61212593

ISSN:

20724292

NORA Subject Terms:

Earth Sciences
Electronics, Engineering and Technology
Archaeology

Date made live:

15 Apr 2015 15:11 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/510617