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Remote Sens. 2014, 6(11), 10510-10522; doi:10.3390/rs61110510

A Procedure to Map Subsidence at the Regional Scale Using the Persistent Scatterer Interferometry (PSI) Technique

Department of Earth Sciences, University of Florence, Via G. La Pira, 4, Florence 50121, Italy
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Received: 27 June 2014 / Revised: 23 October 2014 / Accepted: 24 October 2014 / Published: 30 October 2014
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Abstract

In this paper, we present a procedure to map subsidence at the regional scale by means of persistent scatterer interferometry (PSI). Subsidence analysis is usually restricted to plain areas and where the presence of this phenomenon is already known. The proposed procedure allows a fast identification of subsidences in large and hilly-mountainous areas. The test area is the Tuscany region, in Central Italy, where several areas are affected by natural and anthropogenic subsidence and where PSI data acquired by the Envisat satellite are available both in ascending and descending orbit. The procedure consists of the definition of the vertical and horizontal components of the deformation measured by satellite at first, then of the calculation of the “real” displacement direction, so that mainly vertical deformations can be individuated and mapped. View Full-Text
Keywords: subsidence; radar interferometry; PSI technique subsidence; radar interferometry; PSI technique
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Rosi, A.; Agostini, A.; Tofani, V.; Casagli, N. A Procedure to Map Subsidence at the Regional Scale Using the Persistent Scatterer Interferometry (PSI) Technique. Remote Sens. 2014, 6, 10510-10522.

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