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Fig. 6. | Earth, Planets and Space

Fig. 6.

From: Study on the effect of the oceanic water layer on strong ground motion simulations

Fig. 6.

Analysis of the phase and group velocities. The upper two subplots show the velocity model cross-section and average 1-D velocity model in the target segment of the model bounded by the vertical dashed lines in the upper panel. Lower two panels show phase and group velocities of Rayleigh waves for Mode 1 and Mode 0 (fundamental): theoretical dispersion curves (Saito, 1988) were calculated using the 1-D velocity model above (solid and dashed lines), and velocities were estimated from the simulated waveforms (triangles). Error bars indicate standard deviation of estimates of phase velocities for the first wave packet and for the lowest frequency of the second wave packet. Standard deviations for phase velocities of the second wave packet (as well as standard deviations for group velocities) are much smaller (not shown here in order to maintain the clarity of the picture).

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