Sediment trapping analysis of flood control reservoirs in Upstream Ciliwung River using SWAT Model

2nd Transdisciplinary Research on Environmental Problems in Southeast Asia

地球科学;生态环境科学

Rofiq Ginanjar, Mirwan^1 ; Sandy Putra, Santosa^2

PUSAIR, Ministry of Public Works and Housing, Jl. Ir. H. Djuanda 193, Bandung

40135, Indonesia^1

Balai Sabo, Ministry of Public Works and Housing, Yogyakarta

55282, Indonesia^2

关键词: ciawi;    ciliwung;    Flood risk reduction;    Operation planning;    Scientific decisions;    Sediment concentration;    Soil and Water assessment tools;    swat;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/71/1/012014/pdf
DOI  :  10.1088/1755-1315/71/1/012014

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The plans of Sukamahi dam and Ciawi dam construction for Jakarta flood risk reduction purpose had been proposed as feasible solutions to be implemented. However, the risk of the dam outlets clogging, caused by the sediment, is important to be anticipated. The prediction of the max sediment concentration in the reservoir is crucial for the dam operation planning. It is important to avoid the flood outlet tunnel clogging. This paper present a hydrologic sediment budget model of The Upstream Ciliwung River Basin, with flood control dam existence scenarios. The model was constructed within SWAT (Soil and Water Assessment Tools) plugin and run inside the QGIS framework. The free hydrological data from CFSR, soil data from FAO, and topographical data from CGIAR-CSI were implemented as the model input. The model resulted the sediment concentration dynamics of the Sukamahi and Ciawi reservoirs, on some suspended sediment parameter ranges. The sediment trapping efficiency was also computed by different possible dam capacity alternatives. The research findings will give a scientific decision making base for the river authority, in term of flood control dam planning, especially in The Upstream Ciliwung River Basin.