Study on distribution and movement of sediment along Tanjung Batu Beach of Kerteh coastal area, Terengganu

Abstract

The study on distribution and movement of sediment was conducted along Tanjung Batu Beach, Kerteh Terengganu. The study was carried out in order to determine the distribution of sediment and beach profile changes. The direction of sediment movement was also revealed based on the sediment characteristics and beach profiles. The rain distribution and wind velocity play a great role which influences the changes of the sediment characteristics and beach profile. Sampling was conducted in thirty stations with 100 meter interval and divided into two zones which is Zone A and Zone B. Transit Sokkia C410 was used to measure beach profile properties. Meanwhile, moment's method was employed to calculate sedimentological parameter. Based on the changes of beach profile for all stations, the degree of steepness is decreasing towards the northern of study area which is from Station 1 until Station 30 or Zone A to Zone B except for stations located in the middle of the study area either within the zones or the entire sampling site. This is due to the existence of natural feature such as headland and a hard engineering structure which is a groin that founded at the study area. For sedimentological analysis, the distribution of mean values increased from Station 1 until Station 30 and the increasing of this value indicates that the grains in that particular area are getting finer. Sediments in Zone A were founded poorly sorted compare to stations in Zone B.