Fig. 4From: Spatial distribution and sources of tsunami deposits in a narrow valley setting - insight from 2011 Tohoku-oki tsunami deposits in northeastern JapanThicknesses of tsunami sand shown by each topographic type against the inland distance from the shoreline (a) and the base elevation (b). Control point of measurement of the distance from the shoreline is shown in Fig. 1b. Base elevation means the elevation (above T.P.) of the bottom of tsunami deposit. TS, tsunami sand layer; LM, lower main valley; UM, upper main valley; NV, north sub-valley; SV, south sub-valley; P, pondBack to article page