ABSTRACT
ABSTRACT: This study aims to study the effects of tidal variations on the return period of an event when the water level in a river exceeds a prescribed elevation at a selected location through the use of a numerical flow routing model which accounts for the backwater effects of the changing tidal level and which also takes into consideration the statistics related to the tidal excursions above certain prescribed levels and the durations of such excursions. The Singapore River system is the subject of this study and it is found that the effects of the statistical variations of the tides is to increase the return period for the flow which causes flooding.
