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Earth, Planets and Space
Fig. 4 | Earth, Planets and Space

Fig. 4

From: Visualization of attenuation structure and faults in incoming oceanic crust of the Nankai Trough using seismic attenuation profiling

Fig. 4

An example of gradient p computation and correlation coefficient on linear approximation. Black solid curve shows the logarithm of spectral ratio function of frequency (10–70 HZ) in a time window 8.960–9.088 s at a location of CDP24000. Orange broken line is approximate straight line with gradient p, which was computed by linear approximation with the least squares method. The correlation coefficient on the approximation was − 0.983

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