http://www.cnr.it/ontology/cnr/individuo/prodotto/ID175414

Resolving land subsidence within the Venice Lagoon by persistent scatterer SAR interferometry (Articolo in rivista)

Type

Articolo in rivista (Classe)
Prodotto della ricerca (Classe)

Label

Resolving land subsidence within the Venice Lagoon by persistent scatterer SAR interferometry (Articolo in rivista) (literal)

Anno

2012-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.1016/j.pce.2010.01.002 (literal)

Alternative label

Teatini P; Tosi L; Strozzi T; Carbognin L; Cecconi G; Rosselli R; Libardo S (2012)
Resolving land subsidence within the Venice Lagoon by persistent scatterer SAR interferometry
in Physics and chemistry of the earth. Parts A/B/C (Online)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Teatini P; Tosi L; Strozzi T; Carbognin L; Cecconi G; Rosselli R; Libardo S (literal)

Pagina inizio

72 (literal)

Pagina fine

79 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

40-41 (literal)

Rivista

Physics and chemistry of the earth. Parts A/B/C (Rivista)

Note

ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

- Dept. of Mathematical Methods and Models for Scientific Applications, University of Padova, Italy - Institute of Marine Sciences, CNR, Venice, Italy - Gamma Remote Sensing, Switzerland - Servizio Ingegneria, Consorzio Venezia Nuova, Venice, Italy - Sistema Informativo, Magistrato alle Acque di Venezia, Venice, Italy (literal)

Titolo

Resolving land subsidence within the Venice Lagoon by persistent scatterer SAR interferometry (literal)

Abstract

Land subsidence is a severe geologic hazard threatening the lowlying transitional coastal areas worldwide. Monitoring land subsidence has been significantly improved over the last decade by space borne earth observation techniques based on Synthetic Aperture Radar (SAR) interferometry. Within the INLET Project, funded by Magistrato alle Acque di Venezia - Venice Water Authority (VWA) and Consorzio Venezia Nuova (CVN), we use Interferometric Point Target Analysis (IPTA) to characterize the ground displacements within the Venice Lagoon. IPTA measures the movement of backscattering point targets (PTs) at the ground surface that persistently reflect radar signals emitted by the SAR system at different passes. For this study 80 ERS-1/2 and 44 ENVISAT SAR scenes recorded from 1992 to 2005 and from 2003 to 2007, respectively, have been processed. Highly reliable displacement measurements have been detected for thousands of PTs located on the lagoon margins, along the littorals, in major and small islands, and on single structures scattered within the lagoon. On the average, land subsidence ranges from less than 1 mm/year to 5 mm/year, with some PTs that exhibit values also larger than 10 mm/year depending on both the local geologic conditions and the anthropic activities. A network of a few tens of artificial square trihedral corner reflectors (TCRs) has been established before summer 2007 in order to monitor land subsidence in the inner lagoon areas where ''natural\" reflectors completely lack (e.g., on the salt marshes). The first interferometric results on the TCRs appear very promising. (literal)

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