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

Fig. 3

From: The spatial properties of the site amplifications of S-waves by generalized spectral inversion technique and the correction method of the site amplifications considering the contribution of later arrivals after major S-waves

Fig. 3

The site amplifications with S-waves and whole waves based on Fourier spectra. Black lines represent the site amplification evaluated by GIT directly, using the S-wave portion of the strong-motion records. Red lines represent the site amplification calculated as shown in Fig. 1, using the S-wave and coda-wave portion (i.e., whole duration after arrived S-wave) of the strong-motion records (Bold line is average; Thin line is average \(\pm \,1\sigma\)). In each graph, the solid red line indicates the geometrical mean value of the site amplification with whole wave (SA-W), the dotted red line indicates the mean value \(\pm \,1\sigma\) (one standard deviation) of the SA-W calculated from site amplifications of individual records shown in gray lines, and the solid black line indicates the SA-S

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