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Proceedings Paper

Preliminary analysis of a correlation between ground deformations and rainfall: the Ivancich landslide, central Italy
Author(s): F. Ardizzone; M. Rossi; F. Calò; L. Paglia; M. Manunta; A. C. Mondini; G. Zeni; P. Reichenbach; R. Lanari; F. Guzzetti
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Paper Abstract

We exploited Differential Synthetic Aperture Radar Interferometry (DInSAR) to investigate the geographical and the temporal pattern of ground deformations in the Ivancich landslide area, Assisi, Italy, in the 18.4-year period April 1992 - September 2010. We used SAR data obtained by the European Remote Sensing (ERS-1/2) satellites in the period April 1992 - July 2007, and SAR data captured by the ASAR sensor on board the Envisat satellite in the period October 2003 - September 2010. We used the Small Baseline Subset (SBAS) technique to process the SAR data, obtaining full resolution measurements for multiple radar targets inside and outside the landslide area, and the history of deformation of the individual targets. The geographical pattern of the ground deformation was found consistent with independent topographic information. The deformation time series of the individual targets were compared to the rainfall history in the area. Results revealed the lack of an immediate effect of rainfall on the ground deformation, and confirmed the existence of a complex temporal interaction between the rainfall and the ground deformation histories in the landslide area. Availability of very long, spatially distributed time series of surface deformation has provided an unprecedented opportunity to investigate the history of the active landslide area.

Paper Details

Date Published: 27 October 2011
PDF: 9 pages
Proc. SPIE 8179, SAR Image Analysis, Modeling, and Techniques XI, 81790L (27 October 2011); doi: 10.1117/12.899453
Show Author Affiliations
F. Ardizzone, Istituto Di Ricerca Per La Protezione Idrogeologica, CNR (Italy)
M. Rossi, Istituto Di Ricerca Per La Protezione Idrogeologica, CNR (Italy)
F. Calò, Instituto per il Rilevamento Elettromagnetico dell'Ambiente, CNR (Italy)
L. Paglia, Instituto per il Rilevamento Elettromagnetico dell'Ambiente, CNR (Italy)
M. Manunta, Instituto per il Rilevamento Elettromagnetico dell'Ambiente, CNR (Italy)
A. C. Mondini, Istituto Di Ricerca Per La Protezione Idrogeologica, CNR (Italy)
Univ. degli Studi di Perugia (Italy)
G. Zeni, Instituto per il Rilevamento Elettromagnetico dell'Ambiente, CNR (Italy)
P. Reichenbach, Istituto Di Ricerca Per La Protezione Idrogeologica, CNR (Italy)
R. Lanari, Instituto per il Rilevamento Elettromagnetico dell'Ambiente, CNR (Italy)
F. Guzzetti, Istituto Di Ricerca Per La Protezione Idrogeologica, CNR (Italy)


Published in SPIE Proceedings Vol. 8179:
SAR Image Analysis, Modeling, and Techniques XI
Claudia Notarnicola; Simonetta Paloscia; Nazzareno Pierdicca, Editor(s)

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