等深線変化モデルによるsand body移動の数値解析

概要

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A contour-line-change model proposed by Serizawa et al. (2002), in which cross-shore sand transport determined from the balance between the equilibrium slope of sand and local slope, and longshore sand transport are taken into account, was applied to the Shizuoka and Shimizu coasts to investigate the movement of sand body. Due to the numerical simulation, a propagation velocity, 252 m/yr, of the sand body was predicted, and this result was in good agreement with the measured velocity of 260 m/yr. Regarding the longitudinal profile changes across the detached breakwaters, sand deposition started from the shoreward zone of the detached breakwaters, and thereafter, sand was deposited off the detached breakwater, forming a gentle slope extending from the shoreward zone to the offshore bed off detached breakwaters. These results were also in good agreement with the measured profile changes.
日本地形学連合の論文
2007-10-25