Automated procedure for InSAR data inversion using Finite Element Method

Source inversions performed using different kind of static deformation data, such as GPS displacements, DInSAR imagery, levelling and EDM measurements, suggest that slip on fault is usually not uniform and is better modeled as a distribution of dislocation sources. To this aim, we developed an autom...

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Bibliographic Details
Main Authors: Currenti, G., Del Negro, C., Scandura, D., Williams, C.A.
Format: Conference Proceeding
Language:English
Subjects:
Deformable models
Distributed computing
Finite element methods
geodetic inversion
Green's function methods
InSar Data
Inverse problems
numerical modeling
Numerical models
Quadratic programming
Surface topography
Synthetic aperture radar
Synthetic aperture radar interferometry
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Description
Summary:Source inversions performed using different kind of static deformation data, such as GPS displacements, DInSAR imagery, levelling and EDM measurements, suggest that slip on fault is usually not uniform and is better modeled as a distribution of dislocation sources. To this aim, we developed an automated procedure for geodetic data inversion to estimate slip distribution along the fault interfaces. Finite Element Models are used to compute synthetic Green¿s functions for static displacement. FEM-generated synthetic Green¿s functions are combined with inverse methods to estimate slip distributions that explain the observed ground deformation.
ISSN:2151-2019
DOI:10.1109/USEREST.2008.4740336