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

Fig. 3

From: “N”-shaped Y/X coda spectral ratio observed for in-line-type OBS networks; S-net and ETMC: interpretation based on natural vibration of pressure vessel

Fig. 3

Rotation angle θ dependence of (a) average Y/X amplitude spectral ratio and (b) D1 (red circles) and D2 (black circles) values obtained for station N.S6N14. Red and thin black curves in a represent amplitude spectral ratios for θ = 0° and other rotation angles (–40°––10°, 10°–40°), respectively. Red dotted curves are logarithmic standard deviation of the Y/X amplitude spectral ratio for θ = 0°

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