Bathymetry and sediment distribution as indicator of erosion at Bidong Island, Terengganu

Abstract

The study of seabed erosion and sediment distribution was carried out in the Bidong Island, Terengganu. This study was conducted to determine the size characteristics of sediment as an indicator of erosion that occurs in the presence of Bidong island in June. Sampling process was carried out by building to facilitate the process of transect bathymetry. Based on the transect has been built we can break the 12 station to collect sediment. Based on the information obtained from the bathymetry there is severe erosion occurred in the presence Bidong island using 3D diagrams that have been processed to remove the area is not applicable and correct to include tidal data to the data obtained is really accurate without any error. Based on some basic characteristics of the sediment size distribution and the depth of the seabed. Sediment distribution is obtained that consists of the mean of coarse sand, medium sorting perfect and very negative skewness that dominates almost all stations. There was no significant change can be seen in terms of kurtosis in the most leptokurtic kurtosis dominate almost all the stations in the study area. However, the erosion that occurs in the presence of Bidong Island this happens because there are many agents that induce erosion such as wind, and currents.