[S04B-01] Modelling river mouth evolution under migration process
キーワード：river mouth, One-line model, morphology change
Morphology of river mouth with a delta formation was widely defined and discussed in both analytical and numerical approaches in many past studies. However, the migration of river mouth due to the relation between longshore sediment transport induced by waves and the impacts of river mouth such as tidal flows or floods has been unfocused by means of analytical analysis.
Regarding analytical studies related to the shoreline change, one-line model and its solutions are well-known. Pelnard-Considere (1956) was the very first study to find a solution describing the shoreline development with time near a coastal barrier. Afterwards, many solutions were found in order to describe the shoreline evolution under different conditions, namely, Larson et al. (1987), Walton (2007), etc. This study will form a new analytical solution dealing with the time varying position of the river mouth.
Regarding analytical studies related to the shoreline change, one-line model and its solutions are well-known. Pelnard-Considere (1956) was the very first study to find a solution describing the shoreline development with time near a coastal barrier. Afterwards, many solutions were found in order to describe the shoreline evolution under different conditions, namely, Larson et al. (1987), Walton (2007), etc. This study will form a new analytical solution dealing with the time varying position of the river mouth.