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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: Detailed S-wave velocity structure of sediment and crust off Sanriku, Japan by a new analysis method for distributed acoustic sensing data using a seafloor cable and seismic interferometry

Fig. 3

Phase velocity, Vs structures, and sensitivity kernel. A and E—Normalize residuals and estimation phase velocity at subarrays from the coast of 39.94 and 67.68 km, respectively. The error bars represent the uncertainties estimated by the bootstrap method. The white dots and cross makers indicate errors less than and more than 0.1 km/s, respectively. We used phase velocity only with an error less than 0.1 km/s for our inversion analysis. B and F—Vs structures at subarrays from the coast of 39.94 and 67.68 km. D and H White dots and green lines indicate the observed and estimated phase velocities, respectively. The errors were estimated by the bootstrap method. C Normalized Vs sensitivity kernel of the fundamental Rayleigh wave at 39.94 km from the coast. G and I Normalized Vs sensitivity kernels of fundamental and first higher mode Rayleigh waves at 67.68 km from the coast

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