局所漂砂量則を用いた準三次元海浜変形モデルの提案

抄録

Many beach deformation models have been developed over the recent decades. Among them, there were a few models which could simulate field-scale beach deformation based on local transport rate in natural sea conditions. This paper aims to re-evaluate former work of sand transport formulae and to develop a comprehensive Quasi-3D Large Scale Beach Deformation Model. In this paper, three sand transport formulae, Shibayama et al. (1982), Sunamura(1982) and Watanabe et al. (1984) were examined. The limit parameter ∏c which was proposed by Watanabe et al. was explained by using Sunamura and Horikawa's (1974) parameter C. Finally the model results of beach deformation model were compared with the Seisho Beach data in 2007.