On the Shelter Effect of Coastal Forest Against Tsunami

Several houses have remained standing behind the coastal forests, despite most of the coastal forests having been knocked down or swept away due to the Tohoku Region tsunami that occurred on March 11, 2011. Some of this is due to the robust strength of the houses themselves, but there are also cases where they are clearly judged to be due to the tsunami reduction effect of the coastal forest. This research, based on the aerial photographs taken after the tsunami, studies some examples of houses located behind the coastal forest that have been able to withstand the tsunami flow and discusses the existence of tsunami - reducing effects of the coastal forest.