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Authors: | Di Stefano, A.* Currenti, G.* Del Negro, C.* Fortuna, L.* Nunnari, G.* |
Title: | Integrated inversion of numerical geophysical models using artificial neural networks | Journal: | World Scientific series on nonlinear science, series B | Series/Report no.: | /15 (2010) | Issue Date: | 2010 | Keywords: | Identification, Modeling, Numerical methods. | Subject Classification: | 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous | Abstract: | A uni ed modelling procedure is proposed to jointly interpret the variations observed in geophysical data and to properly take into account the relation- ship between the intrusive processes and the geophysical variations expected at the ground surface. We focus on the joint inversion of geophysical data by a procedure based on Arti cial Neural Network (ANN) for the estimation of the volcanic source parameters. As forward model, we develop a 3D numerical model based on Finite Element Method (FEM) for computing ground deforma- tion, magnetic and gravity changes caused by magmatic overpressure sources, with the aim to consider a more realistic description of Etna volcano, including the e ects of topography and medium heterogeneities. |
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