Abstract

In this paper, we investigate the behavior of total sediment transport in the Barudbug weir, Situdam, Karawang, West Java, Indonesia, which is a crucial aspect of water management in the Citarum river basin. We utilize SESAME instrument observation data, encompassing rainfall, TSS, and depth parameters, gathered over a period of approximately three years. Additionally, we employ a two-dimensional Advection-Diffusion analytic model that takes into account settling velocity. The observation results reveal a positive correlation between TSS and depth, with TSS levels increasing following heavy rainfall. Furthermore, there exists a time delay between rainfall events and the subsequent rise in TSS concentration, suggesting an upstream source of sediment. The model outcomes demonstrate an inverse relationship between TSS concentration and the velocity of river flow, as the river flow acts as a leaching mechanism.

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