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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/2307

Authors: Nunnari, G.*
Puglisi, G.*
Guglielmino, F.*
Title: Inversion of SAR data in active volcanic areas by optimization techniques
Title of journal: Nonlinear Processes in Geophysics
Series/Report no.: 12, 2005
Publisher: European Geosciences Union
Issue Date: 30-Sep-2005
URL: http://www.nonlin-processes-geophys.net/12/863/2005/npg-12-863-2005.pdf
Keywords: SAR
ETNA
inversion of ground deformation
Abstract: The inversion problem concerns the identification of parameters of a volcanic source causing observable changes in ground deformation data recorded in volcanic areas. In particular, this paper deals with the inversion of ground deformation measured by using SAR (Synthetic Aperture Radar) interferometry and an inversion approach formulated in terms of an optimization problem is proposed. Based on this inversion scheme, it is shown that the problem of inverting ground deformation data in terms of a single source, of Mogi or Okada type, is numerically well conditioned. In the paper, two case studies of inverting actual SAR data recorded on Mt Etna during eruptions occurring in 1998 and 2001 are investigated, showing the suitability of the proposed technique.
Appears in Collections:05.01.02. Cellular automata, fuzzy logic, genetic alghoritms, neural networks
Papers Published / Papers in press

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