A Method to Determine the Level 1 and Level 2 Tsunami Inundation Areas for Reconstruction in Eastern Japan and Possible Application in Pre-disaster Areas - Post-Tsunami Hazard: Reconstruction and Restoration - page 144

Fig. 10.10 The new tsunami evacuation map (upper fi gure) and land use that includes the mul-
tiple barriers (Lower fi gure) in Sendai City (Source: Sendai Reconstruction bureau, 2011)
We overlaid the simulated inundations from all classes analyzed in the developed
GIS framework. The maximum simulated tsunami fl ow depths and the affected
ratios are given in Fig. 10.12 .
The maximum tsunami fl ow depth in Fig. 10.12 highlights the vulnerability of
the northern part of Owase City. This area could potentially be inundated by an
average 5 m tsunami. Although there is a breakwater present, it would not signifi -
cantly reduce the tsunami impact on the area behind. In contrast, the southern part
of Owase City would experience lower tsunami fl ow depths, although the inunda-
tion distance appears to be wider. This is due to the different ground level heights
between the reclamation area in the north and the southern part of Owase City. The
average ground level height in the area near the coast in the northern part of Owase
city is 2 m, whereas in the southern part, the average ground level is 3.5 m. However,