Abstract :
Coastal beaches are characterized by a well-defined set of wave and tide parameters. Accordingly the
energy condition, tidal scenario, beach slope, and sedimentation environment together shape the
geomorphology of the associated beach. The tidal effect is influenced by several variables, viz., breaker
height, wave period, high tide sediment fall velocity and tidal range. This research paper deals with the
morphodynamics of the Digha coastal beach and also makes a detailed study of the impact of tides on it.
The tidal effect on beach morphology and morphodynamics have been quantified by two parameters,
viz., dimensionless fall velocity and the relative tide range. The values of the various parameters of
beach, tide and waves have been used to classify the tidal beach and also to extract information about
the relative importance of swash, surf zone and wave shoaling.
Keyword :
Beach Dimensionless Fall Velocity Relative Tide Range Surf Zone