Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/9164
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dc.contributor.authorallTeatini, Pietroen
dc.contributor.authorallTosi, Luigien
dc.contributor.authorallStrozzi, Tazioen
dc.contributor.authorallCarbognin, Lauraen
dc.contributor.authorallCecconi, Giovannien
dc.contributor.authorallRosselli, Robertoen
dc.contributor.authorallVolpe, Valerioen
dc.date.accessioned2014-12-05T22:40:50Zen
dc.date.available2014-12-05T22:40:50Zen
dc.date.issued2008-11-25en
dc.identifier.urihttp://hdl.handle.net/2122/9164en
dc.description.abstractLand subsidence is a severe geologic hazard threading the lowlying coastal areas worldwide. Monitoring land subsidence has been significantly improved over the last few years by space borne earth observation techniques based on SAR (Synthetic Aperture Radar) Interferometry. Within the INLET Project, funded by Magistrato alle Acque di Venezia – Venice Water Authority (VWA) and Consorzio Venezia Nuova (CVN), we have used the Interferometric Point Target Analysis (IPTA) to characterize the ground displacements within the Venice Lagoon. IPTA measures the movement of backscattering objects (point targets, PT) at the ground surface which persistently reflect radar signal emitted by the SAR antenna. For this study 80 ERS-1/2 and 44 ENVISAT scenes recorded from 1992 to 2005 and from 2003 to 2007, respectively, have been processed by IPTA. High reliable land subsidence data have been detected for thousands of PT located on the lagoon margins, along the littorals, in major and small islands, and on single anthropogenic structures scattered within the lagoon. On the average, land subsidence ranges from less than 1 mm/year to 5 mm/year, with some PT that exhibit values also larger than 10 mm/year depending on both the local geologic conditions and anthropogenic activities. A network of few tens of artificial square trihedral corner reflectors (TCR) has been established before summer 2007 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 TCR appear very promising.en
dc.language.isoEnglishen
dc.relation.ispartof9th International Conference Littoral 2008en
dc.subjectSAR (Synthetic Aperture Radar) Interferometry.en
dc.subjectland subsidence.en
dc.subjectVeniceen
dc.subjectTrihedral corner reflectors (TCR)en
dc.titleSENSING THE LAND SUBSIDENCE IN THE VENICE LAGOON BY INTERFEROMETRIC POINT TARGET ANALYSISen
dc.typeConference paperen
dc.description.statusPublisheden
dc.subject.INGV04. Solid Earth::04.03. Geodesy::04.03.06. Measurements and monitoringen
dc.description.ConferenceLocationVenice, Italyen
dc.relation.referencesCarbognin L., Gatto P., Mozzi G., Gambolati G. and Ricceri G., 1977, New trend in the subsidence of Venice, in "Land Subsidence (Proc. II Int. Symp. on Land Subsidence)", by J.C. Rodda, IAHS Publ. 121, LithoCrafter, Michigan, pp. 65- 81. Carbognin L., Tosi L. and Teatini P., 1995, Analysis of actual land subsidence in Venice, Italy, in "Land Subsidence (Proc. II Int. Symp. on Land Subsidence)", by F.B.J. Barends et al., A.A. Balkema, Brookfield, Vt., pp. 129-137. Carbognin L., Teatini P. and Tosi L., 2004, Relative land subsidence in the lagoon of Venice, Italy, at the beginning of the new millennium. J. Marine Systems, 51(1-4), 345-353. Ferretti A., Prati C. and F. Rocca, 2001. Permanent scatterers in SAR interferometry. IEEE Trans. Geosci. Remote Sens., 39(1), 8-20. Gabriel A.K., Goldstein R.M. and Zebker H.A., 1989. Mapping small elevation changes over large areas: differential radar interferometry. J. Geophys. Res., 94, 9183-9191. MAGISTRATO ALLE ACQUE DI VENEZIA - Morgan, 2007. Studio C.8.3/II Aggiornamento delle valutazioni della subsidenza e dell'eustatismo in laguna. Gestione della rete GPS lagunare. Livellazione geometrica di precisione della testa di capisaldi installati attorno a nove mareografi - 3° Rapporto - Relazione. Prodotto dal Concessionario, Consorzio Venezia Nuova. Teatini P., Tosi L., Strozzi S., Carbognin L., Wegmüller U. and Rizzetto F., 2005. Mapping regional land displacements in the Venice coastland by an integrated monitoring system. Remote Sens. Environ., 98(4), 403-413. Teatini P., Strozzi T., Tosi L., Wegmüller U., Werner C. and Carbognin L., 2007. Assessing short- and long-time displacements in the Venice coastland by synthetic aperture radar interferometric point target analysis, J. Geophys. Res., 112, F01012, doi:10.1029/2006JF000656. Tosi L., Carbognin L., Teatini P., Rosselli R. and Gasparetto Stori G., 2000, The ISES Project subsidence monitoring of the catchment basin south of the Venice Lagoon (Italy), in "SISOLS 2000, Sixth Int. Symp. on Land Subsidence", by L. Carbognin et al., La Garangola, Padova, Italy, Vol. II, pp.113-126. Tosi L., Carbognin L., Teatini P., Strozzi S. and Wegmüller U., 2002. Evidence of the present relative land stability of Venice, Italy, from land, sea, and space observations. Geophys. Res. Lett., 29(12), 1562, doi:10.1029/2001GL013211. Usai S. and R. Klees, 1999. SAR interferometry on a very long time scale: A study of the interferometric characteristics of man-made features. IEEE Trans. Geosci. Remote Sens., 37(4), 2118-2123. Werner C., Wegmüller U., Strozzi T. and A. Wiesmann, 2003, Interferometric Point Target Analysis for deformation mapping, in "IGARSS 2003", Inst. of Electr. and Electron. Eng., New York.en
dc.description.obiettivoSpecifico6A. Monitoraggio ambientale, sicurezza e territorioen
dc.description.fulltextopenen
dc.contributor.authorTeatini, Pietroen
dc.contributor.authorTosi, Luigien
dc.contributor.authorStrozzi, Tazioen
dc.contributor.authorCarbognin, Lauraen
dc.contributor.authorCecconi, Giovannien
dc.contributor.authorRosselli, Robertoen
dc.contributor.authorVolpe, Valerioen
item.openairetypeConference paper-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.classification.parent04. Solid Earth-
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