Study on impacts of coastal developments towards beach morphology and sediment characteristics at Dungun and Kuala Terengganu

Abstract

Study on impacts of coastal development toward the beach morphology and sediment characteristics was conducted at Dungun and Kuala Terengganu. Kuala Terengganu, Seberang Takir and batu Buruk had been choose as study area. The study was carried out in order to determine the beach profile and sediment characteristics pre-monsoon and during monsoon. There are total of twelve stations, six stations at Dungun and six station at Kuala Terengganu. Sampling was done every station the interval of distance range 500m to 1km. Transit Sokkia was used to measure beach profile properties. Meanwhile, method of moments was employed to calculate the sedimentological parameters. Based on the beach profile analysis, at Dungun four out of six stations undergone erosion while other undergone deposition. At Kuala Terengganu, there are two station with are station 5 and station 6 undergone erosion, other the beach was undergone deposition. The pattern of beach at Kuala Terengganu each station happened deposition and erosion event at beginning or downward of beach vice versa. It proved that the decrease mean of grain size the sand are coarse. It shows that the beach has erosion occurred. The beach morphology change because natural phenomena (monsoon) beside, the impacts also come from the coastal development that had been built at the beach.