Publication Date:
2017-04-04
Description:
In the Interferometric Point Target Analysis (IPTA) point-like targets that remain phase coherent over time
are identified in a sequence of satellite Synthetic Aperture Radar (SAR) images and used to estimate the
progressive deformation ofthe terrain with millimetric accuracy. Building upon conventional interferometric
SAR techniques, IPT A overcomes atrnospheric delay anomalies and tempora! and geometrie decorrelation by
exploring the tempora! and spatial characteristics of radar interferometric signatures collected from point
targets widely available over urban areas but that can be also found scattered outside cities and villages. In
this contribution the application of IPT A to the monitoring of land' subsidence in the urban and littoral
environments of the Venice Lagoon is described. The results achieved using ali the available ERS SAR
images acquired between 1992 and 2000 are very significant due to the achieved target spatial and tempora!
coverage.
Description:
Published
Description:
417-425
Description:
5IT. Osservazioni satellitari
Description:
open
Keywords:
Land subsidence monitoring
;
SAR Interferometry
;
Point Target
;
Lagoon environment
;
Venice
;
Point Target Analysis (IPTA)
;
04. Solid Earth::04.07. Tectonophysics::04.07.99. General or miscellaneous
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
book chapter
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