【特 集】
気候変動の我が国の砂浜への影響
2019 年 33 巻 1 号 p. 28-35
詳細
2019 年 33 巻 1 号 p. 28-35
Future beach loss in Japan are reported to be more than 90% due to sea level rise in the worst case. Beaches are affected not only by the sea level rise but also by rainfall and wave characteristic changes and others. This paper reviews past and future beach loss in Japan in a national scale and introduces projection method of future beach loss due to sea level rise and rainfall characteristic change. Even past beach loss and sediment budget are not easy to be quantitatively elucidated in coastal catchments in a national scale, then realistic future beach loss projection is much more challenging. Both further past data analysis and beach profile model improvement/development are necessary for better beach loss projections.
