Study on Distribution Characteristics of Sediment at the Estuary and Along Kuala Terengganu River

Surface samples of bottom sediment from the Kuala Terengganu River, Terengganu were analysed to compare the distribution characteristics of sediment before and after monsoon season. Total of 8 stations were examined along the river as well as the estuary area. All the samples were analyzed base on its physical characteristics as: mean size, sorting, skewness and kurtosis. The results show that at the middle part of along the river, generally is dominated by very coarse sand before monsoon season ranges from 7.565 φ to - 0.1375 φ and has various type of particle sizes after monsoon season ranges from 7.495 φ to - 0.79 φ. At the left side of the river shows mean value ranged from 7.515 φ to -0.8305 φ before monsoon season. The mean values are changed after monsoon season between 7.525 φ to - 0.93 φ. While right side of the river indicates the mean value ranges from 7.74 φ to -0.919 φ before monsoon season and 7.5 φ to - 0.975 φ after monsoon season. The sorting, skewness and kurtosis are also indicated changes before and after the monsoon seasons. The statistical results show that the confidence interval contains the value 0.0, therefore it is not a statistically significant difference between sediment distribution before and after monsoon season. Thus, the characteristics of sediment distribution of 8 stations may not only depend on the monsoon effects but other factor such as dredging activity for this particular area of study.