Tidal propagation in an oceanic island with sloping beaches
- 1Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan
- 2Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- 3Division of Civil Engineering, University of Dundee, Scotland, DD1, 4HN, UK
Abstract. In this study, a new analytical solution for describing the tide-induced groundwater fluctuations in oceanic islands with finite length and different slopes of the beaches is developed. Unlike previous solutions, the present solution is not only applicable for a semi-infinite coastal aquifer, but also for an oceanic island with finite length and different sloping beaches. The solution can be used to investigate the effect of higher-order components and beach slopes on the water table fluctuations. The results demonstrate the effect of higher-order components increases with the shallow water parameter or amplitude parameter and the water table level increases as beach slopes decrease.