Author(s)

H. Tanaka, N. Kuwahara, K. Sato and N. Shuto

Abstract

The authors have proposed a two-dimensional hydrodynamic and morphological model for predicting river mouth topography change during a flood, in which sediment movement due to secondary current as well as that induced by streamwise current is considered. ( Tanaka et al. [1] ). Although the model has been successfully applied to a river mouth in Japan, however, the applicability of the model to other flood events and to other rivers has not been yet examined thoroughly. The purpose of the present study is to investigate predictive ability of the authors' model when it is applied to other big floods. 1 Introduction Considerable change in river mouth topography sometimes occurs in a very short time due to predominant external

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