Time-domain full-waveform moment tensor inversion
Full waveform moment tensor inversion by reciprocal finite difference Green’s function
... the waveform moment tensor inversion for the shallow earthquakes in the subduction region: the effect of the intense lateral inhomogeneity in the structure, and the strategy to invert the ...
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Time Domain Full Waveform Inversion Using ADI Modeling
... recording time the total amount of memory needed per source is not much more than about 2-10 times the amount of memory needed in the Marmousi example and would still fit into main memory of modern compute ...
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Acoustic Based Crosshole Full Waveform Slowness Inversion in the Time Domain
... Conclusion Full waveform inversion is an effective method for recovering the media para- ...crosshole waveform slowness ...the inversion converging to the right ...
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Downhole microseismic monitoring of hydraulic fracturing: a full-waveform approach for complete moment tensor inversion and stress estimation
... the inversion for conventional ...a full-waveform based approach to invert for complete moment ...matching full three-component waveforms across the array, a stable moment ...
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Full-waveform Based Complete Moment Tensor Inversion and Stress Estimation from Downhole Microseismic Data for Hydrofracture Monitoring
... the full-waveform approach loses most of its benefits, since the conventional method, which uses far field P/S amplitudes and makes additional double-couple source assumption, can also retrieve correct ...
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Multiscale full waveform inversion
... the time step needed to propagate the numerical ...computational domain has dimensions of ...resulting time step would be prohibitively small for global wave propagation at any ...
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Influential Factors Analysis of Full Waveform Inversion In Time Domain For Near-Surface Velocity Modeling
... 3. Array length and uniformity The number of shot in figure 9 and figure 10 is both twenty distributed uniformly on the ground. But the difference is the received condition that the former’s geophone is mobile ...
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Robust time-domain full waveform inversion with normalized zero-lag cross-correlation objective function
... wavefield. We solve the second-order acoustic wave equation considering perfectly matched layers as absorbing boundary conditions (Liu et al., 2012) to suppress spurious reflections from the four artificial boundaries. ...
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Toward automated directivity estimates in earthquake moment tensor inversion
... directivity moment tensor (DMT) inversion method to estimate earthquake rupture properties directly through waveform fitting without needing to individually estimate apparent source parameters ...
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Velocity model building by 3D frequency-domain full-waveform inversion of wide-aperture seismic data
... PSDM. Full wave propagation modeling is a critical issue in FWI methods since it is the most computationally expensive task in the processing ...frequency domain, the for- ward problem reduces to the ...
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Hierarchical Bayesian Inversion for the Point Source Moment Tensor: Method and Applications
... using time shifts that maximise the waveform fit in a linear inversion, and compensate for possible velocity ...the time shifts as free parameters in the ...and moment tensor ...
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Quasi-elastic full-waveform velocity inversion with density constraints
... Simultaneous inversion of velocity and density in time-domain full waveform ...acoustic full waveform inversion for density estimation: 82 nd Annual International ...
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Acoustic Full Waveform Inversion of Marine Reflection Seismic Data
... 2D time-domain acoustic full waveform inversion to marine streamer ...synthetic inversion experiments was to provide the guidelines on how to design an efficient inversion ...
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Moving from 1-D to 3-D velocity model: automated waveform-based earthquake moment tensor inversion in the Los Angeles region
... In addition, by comparing the full moment tensor solutions obtained using 1-D and 3-D velocity models, our studies show that the percentage of non-DC components CLVD and/or ISO decrease [r] ...
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Applying Gauss-Newton and Exact Newton method to Full Waveform Inversion
... for inversion and uncertainty estimation, and also the prohibitive cost of Hessian computation and ...the inversion process. The final aim is to tackle Gauss-Newton and Full-Newton method for large ...
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Mitigating non-linearity in full waveform inversion using scaled-Sobolev norms
... The scaled-Sobolev methods were applied on the ocean bottom wide-angle velocity experiment (OBWAVE) data acquired o↵shore Newfoundland in 2010. Due to the large size of the OBWAVE data, the inversions were performed on ...
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Microseismic Full Waveform Modeling in Anisotropic Media with Moment Tensor Implementation
... Items deposited in White Rose Research Online are protected by copyright, with all rights reserved unless indicated otherwise. They may be downloaded and/or printed for private study, or other acts as permitted by ...
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Ray-Born Modelling and Full Waveform Inversion
... in time due to inaccurate traveltimes and amplitudes when using the ray-Born ...longer time is spent in the layer relative to smaller ...earlier time than in the constant velocity background ...
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Three-dimensional anisotropic full-waveform inversion
... combined-local inversion workflow ...combined inversion are shown in Figure ...the inversion. It could be argued that it was the widening of the inversion bandwidth that caused the epsilon ...
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Source Mechanism Analysis of Single-Well Microseismic Data Using Full-Wavefield Moment Tensor Inversion
... utilizing moment tensor inversion of microseismic data should consider the receiver angular coverage of the events being inverted to determine if the source mechanisms can be accurately ...the ...
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