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Joint Inversion of Body-Wave Arrival Times and Surface-Wave Dispersion for Three-Dimensional Seismic Structure Around SAFOD 总被引:2,自引:0,他引:2
Haijiang Zhang Monica Maceira Philippe Roux Clifford Thurber 《Pure and Applied Geophysics》2014,171(11):3013-3022
We incorporate body-wave arrival time and surface-wave dispersion data into a joint inversion for three-dimensional P-wave and S-wave velocity structure of the crust surrounding the site of the San Andreas Fault Observatory at Depth. The contributions of the two data types to the inversion are controlled by the relative weighting of the respective equations. We find that the trade-off between fitting the two data types, controlled by the weighting, defines a clear optimal solution. Varying the weighting away from the optimal point leads to sharp increases in misfit for one data type with only modest reduction in misfit for the other data type. All the acceptable solutions yield structures with similar primary features, but the smaller-scale features change substantially. When there is a lower relative weight on the surface-wave data, it appears that the solution over-fits the body-wave data, leading to a relatively rough V s model, whereas for the optimal weighting, we obtain a relatively smooth model that is able to fit both the body-wave and surface-wave observations adequately. 相似文献
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Treistman Felipe Maceira Maria Elvira Pieiro Penna Dbora Dias Jardim Damzio Jorge Machado Rotunno Filho Otto Corra 《Stochastic Environmental Research and Risk Assessment (SERRA)》2020,34(2):331-353
Stochastic Environmental Research and Risk Assessment - The Brazilian Interconnected Power System is hydro dominated and characterized by large reservoirs presenting multi-year regulation... 相似文献
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