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Authors: Nunnari, G.* 
Puglisi, G.* 
Guglielmino, F.* 
Coltelli, M.* 
Title: Modelling ground deformations in volcanic areas by using SAR interferograms
Issue Date: 2006
Series/Report no.: / 43 (2006)
Keywords: ground deformations
volcanic areas
Subject Classification04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring 
04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques 
Abstract: The inversion problem dealt with is the identification of the parameters of a magma-filled dike which causes observable changes in ground deformation data. It is supposed that ground deformation data are measured by using the SAR (Synthetic Aperture Radar) Interferometry technique. The inversion approach, which is carried out by a systematic search technique based on the Simulated Annealing (SA) optimization algorithm, guarantees a high degree of accuracy. The results given in the paper are supported by experiments carried out using an interactive software tool developed ad hoc, which allows both direct and inverse modeling of SAR interferometric data related to the opening of a crack at the beginning and throughout a volcanic activity episode.
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