Study on cross-shore morphology changes along Kuala Terengganu coastal by using numerical simulation

Abstract

Coastal zone plays as majority crucial roles to the world's population and industrial activity. Both natural and human factor caused erosion and sedimentation. Kuala Terengganu coast presents an important area for tourism, fishing and industrial activities. However, since 1980s this area was affected by erosion and sedimentation. In this study, numerical LITP ACK model was applied to model the cross-shore profile changes along the study area of Teluk Ketapang beach to Seberang Takir for about 5 kilometers. LITPACK is part of the generation of DHI software based on the MIKE Zero concept. It is a software package for simulating non-cohesive sediment transport in waves and currents, littoral drift, coastline evolution and profile development along quasi-uniform beaches. In this study, LITPROF module was used to describe cross-shore profile changes based on time series of wave event. This module was used in predicted the coastal erosion using different wave height and water level. The model is based on the assumption that long shore gradients in hydrodynamic and sediment conditions are negligible and that the depth contours are parallel to the coastline. Thus the coastal morphology is solely described by the cross-shore profile. Water level, wave data and sediment characteristics was taken from Royal Malaysian Navy and previous researcher respectively. These data was the inputs for simulating the cross-shore profile changes. At the end of the thesis, LITPOF module was successfully been used to study the cross-shore morphology changes along Kuala Terengganu coastal. The increasing of wave height and water level had given different impact whether erosion or accretion. Erosion higher for increased in water level factor compared to the increasing of wave height factor. This is useful to make a decision in coastal zone management.