Locations of sources and stations in a 2D grid. The depths of sources are not mentioned.
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The 3D geological velocity model of Canterbury region
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Geometrical correlation among 312 seismogram channels for 4 sources and 78 stations. This value can be used as weight function for measuring the redundancy of data usage.
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The true, initial and inverted models involved in the inversion process using 4 given sources and 78 stations. The adjoint-wavefield method uses reversed-in-time displacement residual as adjoint source.
True model |
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Initial model |
Inverted model after an iteration |
Inverted model after 3 iterations |
Misfit function and step length:
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Waveform comparison between observed and simulated seismograms after one iteration for source 4 (event 3550173m4pt7) at station DFHS
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Inversion starting with a smooth model from true model using 4 given sources and 78 stations.
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Smooth initial model |
Inverted model after 2 iterations |
Misfit function and step length:
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Cross-session comparison at z=2km
True model |
Smooth initial model |
Inverted model |
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