Abstract
Impact of rise in sea-level due to global warming and positive population growth derive primary vulnerability in coastal zones. On the other hand population has been decreasing especially in rural area of Japan so that a change in a risk of coastal disasters depends on the competition between sea-level rise and negative population growth. This study carried out a vulnerability assessment of coastal flood with these compound impacts which agreed to SRES scenario of IPCC in 21st century. After future population in the target area was calculated this population was adjusted to the trend of SRES scenarios. The time-series of flooded area and that affected population according to each scenario were counted and adaptation strategies were discussed for thinly populated areas.
