水深と海底勾配が異なる海底地形条件下での砂嘴伸長の数値計算

概要

論文の詳細を見る
The elongation of a sand spit on a seabed with different water depth and seabed slope was numerically simulated using the BG model (a three-dimensional model for predicting beach changes based on Bagnold's concept) proposed by Serizawa et al. (2010). The examples of sand spits and a pond enclosed by a barrier were examined first using aerial photographs and bathymetric maps. Then, the formation of a sand spit and a barrier was predicted using the BG model under the conditions that the water depth where a sand spit is formed was changed as 5, 10, 15 and 20 cm in a model scale of 1/100, and that the seabed slope was changed as 1/50, 1/40, 1/30 and 1/20. The difference in the form of a sand spit and a barrier formed under these conditions was explained and compared with the natural sand spits and a barrier.
日本地形学連合の論文
2013-10-25