Fig. 2From: Effects of shallow-layer reverberation on measurement of teleseismic P-wave travel times for ocean bottom seismograph dataPercentage of surface area based on CRUST2.0 (a) and time shift (b–f) as functions of thicknesses of seawater and sediment layers. Hatched area in a indicates 0%. Time shift is measured after bandpass filtering at a central period of b 2.7, c 5.3, d 7.5, e 10.6, and f 21.2 s. The maximum and minimum values of time shifts are shown at right top corner of each panelBack to article page