Modeling Salinity Propagation in Cikarang Bekasi Laut Channel, Bekasi Regency, West Java Province, Indonesia
DOI:
https://doi.org/10.5614/j.eng.technol.sci.2022.54.4.10Keywords:
Modelling, Salinity, DredgingAbstract
An inland waterway will be constructed in an existing channel in West Java, Indonesia. The change of salinity in a river due to capital dredging is investigated using a finite element modeling system. The location of the research is the Cikarang Bekasi Laut (CBL) channel, Bekasi Regency, West Java, Indonesia. The aim of this study is to simulate salinity propagation in the CBL before and after capital dredging. Salinity modeling is carried out using the Surface-water Modeling System (SMS). Field surveys of the topography, bathymetry, currents and water level are conducted for the model. The model results are validated with the current and water level field measurements. The field and model results agree well. The current and salinity results show that the trends are correlated with river discharges. After the capital dredging, the salinity in the CBL increases. Mitigation is carried out by constructing a check dam, which can reduce the average salinity in the upstream region by up to 0.05 ppt during the wet season and up to 0.12 ppt during the dry season.
Downloads
References
Committee for Acceleration of Priority Infrastructure (KPPIP), Priority Projects, National Development Planning Agency of Indonesia, 2015.
USACE, HEC-RAS River Analysis System User Manual, USACE, CA: USA, 2016.
DHI, MIKE11 A modelling system for Rivers and Channels User Guide, DHI: Denmark, 2017.
Iosub, M. & Chelariu, OE., The use of HEC-RAS modelling in flood risk analysis, International Conference ?Air and Water ? Components of the Environment?, 2015.
Ajiwibowo, H. & Pratama, MB., Hydrodynamic changes impacted by the waterway capital dredging in Cikarang Bekasi Laut channel, West Java, Indonesia, Water Practice & Technology, 15(2), pp. 450-459, 2020.
Mehzabin, S. Trend analysis of variables and modelling of flow and salinity of the Gorai River using 1D HEC-RAS model, Hydro-Climate and Climate Change Symposium-World Environmental and Water Resources Congress, 2019.
Tri, DQ., Don, NC., Chen, Y. & Mishra, PW., Applying numerical method to understand the effect of climate change on the salinity intrusion in Ca River Basin, Vietnam, Lowland Technology International, 17(2), 2015.
Deltares, Delft3D-FLOW User Manual, Deltares, Delft: Netherlands, 2021.
DHI, MIKE 21 Flow Model Hydrodynamic Module User Guide, DHI: Denmark, 2017.
SMS, Users Guide for RMA2 Version 4.5, SMS, New York: USA, 2005.
Pratama, MB., Venugopal, V., Ajiwibowo, H., Ginting, JW. & Novico F., Modelling tidal flow hydrodynamics of Sunda Strait, Indonesia, Indonesian Journal of Marine Sciences, 25(4), pp. 165-172, 2020.
Ajiwibowo, H. & Pratama, MB., The effect of gate existence at L Island on the seabed profile due to reclamation of Jakarta Bay, International Journal of Engineering and Technology, 9(5), pp. 3763-3774, 2017.
Pratama, MB., Tidal flood in Pekalongan: Utilizing and operating open resources for modelling, IOP Conference Series: Materials Science and Engineering, 676, pp. 012029, 2019.
Ajiwibowo, H., Pratama, MB. & Wurjanto A., Assessment of tidal current power potency in Kelabat Bay, Indonesia, International Journal of Engineering and Technology, 9(4), pp. 3100-3110, 2017.
Ajiwibowo, H., Lodiwa, KS., Pratama, MB. & Wurjanto, A., Field measurement and numerical modeling of tidal current in Larantuka Strait for renewable energy utilization, International Journal of Geomate, 13(29), pp. 124-131, 2017.
Hariati, F., Ajiwibowo, H., Hadihardaja, IK. & Nugroho, J., Modelling adaptation to salinity intrusion in Segara Anakan Estuary due to sea level rise, International Journal of Geomate, 16(53), pp. 9-17, 2019.
Rahman, A. & Yunus, A., Hydrodynamic and morphological response to dredging: Analysis on Gorai River of Bangladesh, International Journal of Innovative Research in Science, Engineering and Technology, 2016.
Roy, B., Haider, MR. & Yunus, A., A study on hydrodynamic and morphological behavior of Padma River using Delft3D model, the 3rd International Conference on Civil Engineering for Sustainable Development ICCESD, 2016
Wibowo, M. & Kongko, W., Study of dyke effects to control sedimentation process on Patimban?s Port Plan using computational modelling, Majalah Ilmiah Pengkajian Industri, 12(2), pp. 85-96, 2018.
Ajiwibowo, H., Numerical modeling for the selection of effluent outlet location, International Journal of GEOMATE, 14, pp. 192 ? 201, 2018.
Ajiwibowo, H., Numerical model of sedimentation and water quality in Kerinci Lake, International Journal of GEOMATE, 15, pp. 77?84, 2018.
Ajiwibowo, H., Ash-Shiddiq, RHB. & Pratama, MB., Assessment of hydro-environmental condition using numerical modeling in Dibawah Lake, Western Sumatra, Indonesia, International Journal of GEOMATE, 15, pp. 140?146, 2018.
Tide tables of Indonesian Archipelago, Center of Hydrographic and Oceanography, Indonesian Navy, 2019.
Tidal stream tables of Indonesian Archipelago, Center of Hydrographic and Oceanography, Indonesian Navy, 2019.
Matsumoto K, Takanezawa T, Ooe M, Ocean tide models developed by assimilating TOPEX/POSEIDON altimeter data into hydrodynamical model: a global model and a regional model around Japan, Journal of Oceanography, 56, pp. 567?581, 2000.
Mock, F.J., Basic study prepared for the FAO/UNDP land capability appraisal project, not published, 1973, Bogor Agricultural Institute, Bogor, Indonesia.
Mishra, PK., Tri, DQ., Ching, CY. & Don, NC., Modeling the influence of river flow and salinity intrusion in the Mekong river estuary, Vietnam, Lowland Technology International, 16(1), pp. 14-26, 2014.
Mendes, J., Ruela, R., Picado, A., Pinheiro, JP., Ribeiro, AS., Pereira, H. & Dias JM., Modeling Dynamic Processes of Mondego Estuary and idos Lagoon Using Delft3D, Journal of Marine Science and Engineering, 9(1), pp. 91, 2021.
Maren, DSv., Kessel, Tv., Cronin, K. & Sittoni, L., The impact of channel deepening and dredging on estuarine sediment concentration, Continental Shelf Research, 95, pp. 1-14, 2015.
MacWilliams, ML., Bever, AJ., Gross, ES., Ketefian, GS. & Kimmerer, WJ., Three-Dimensional Modeling of Hydrodynamics and Salinity in the San Francisco Estuary: An Evaluation of Model Accuracy, X2, and the Low-Salinity Zone, San Fransisco Estuary & Watershed Science, 13(1), 2015.
Martyr-Koller, RC., Kernkamp, HWJ., Dam, Av., Wegen, Mvd, Lucas, LV., Knowles, N., Jaffer, B. & Fregoso, T.A., Application of an unstructured 3D finite volume numerical model to flows and salinity dynamics in the San Francisco Bay-Delta, Estuarine, Coastal and Shelf Science, 192, pp. 86-107, 2017.
.png){kind=logo}
