Evaluating Water Level Variability Under Different Sluice Gate Operation Strategies: A Case Study of the Long Xuyen Quadrangle, Vietnam
The Vietnamese Mekong Delta (VMD) faces increasing challenges due to upstream hydrological fluctuations and climate change, necessitating optimized water management strategies. Sluice gates play a critical role in regulating water levels, yet their effectiveness under different operational modes rem...
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2025-04-01
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| author | Dinh Van Duy Nguyen Thai An Tran Van Ty Lam Tan Phat Ngo Thanh Toan Huynh Vuong Thu Minh Nigel K. Downes Hitoshi Tanaka |
| author_facet | Dinh Van Duy Nguyen Thai An Tran Van Ty Lam Tan Phat Ngo Thanh Toan Huynh Vuong Thu Minh Nigel K. Downes Hitoshi Tanaka |
| author_sort | Dinh Van Duy |
| collection | DOAJ |
| description | The Vietnamese Mekong Delta (VMD) faces increasing challenges due to upstream hydrological fluctuations and climate change, necessitating optimized water management strategies. Sluice gates play a critical role in regulating water levels, yet their effectiveness under different operational modes remains insufficiently assessed. This study examines water level fluctuations under three sluice gate operation scenarios implemented along the West Sea dike in the Long Xuyen Quadrangle, Kien Giang Province, using the MIKE 11 hydrodynamic model. The model was calibrated and validated using the observed data, yielding high accuracy at key sluice gates, including Kien River and Ba Hon. Three sluice gate management scenarios were tested: (1) the current automatic and partially forced operation, (2) fully automatic gate control, and (3) fully forced hydraulic operation. The simulation results indicate that Scenario 3 maintained water levels above +0.6 m more frequently, ensuring better water availability for irrigation and domestic use, while Scenarios 1 and 2 resulted in lower water levels at certain locations. Additionally, forced operation led to higher gate opening and closing frequencies at key sluices, allowing for more adaptive control over water levels. These findings emphasize the benefits of proactive sluice gate management in improving water regulation and mitigating the water scarcity risks. This study is among the first to provide empirical, scenario-based evidence comparing fully forced, automatic, and mixed sluice gate strategies under varying hydrological conditions in the Long Xuyen Quadrangle. |
| format | Article |
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| issn | 2306-5338 |
| language | English |
| publishDate | 2025-04-01 |
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| spelling | doaj-art-87f4163ed54c4e70889a46226dfd1fdc2025-08-20T01:56:24ZengMDPI AGHydrology2306-53382025-04-0112510210.3390/hydrology12050102Evaluating Water Level Variability Under Different Sluice Gate Operation Strategies: A Case Study of the Long Xuyen Quadrangle, VietnamDinh Van Duy0Nguyen Thai An1Tran Van Ty2Lam Tan Phat3Ngo Thanh Toan4Huynh Vuong Thu Minh5Nigel K. Downes6Hitoshi Tanaka7Faculty of Water Resource Engineering, College of Engineering, Can Tho University, Can Tho 94000, VietnamDepartment of Harbor and River Engineering, National Taiwan Ocean University, Keelung 20224, TaiwanFaculty of Water Resource Engineering, College of Engineering, Can Tho University, Can Tho 94000, VietnamFaculty of Water Resource Engineering, College of Engineering, Can Tho University, Can Tho 94000, VietnamDepartment of Agriculture and Rural Development, Rach Gia 91100, Kien Giang Province, VietnamCollege of Environment and Natural Resources, Can Tho University, Can Tho 94000, VietnamCollege of Environment and Natural Resources, Can Tho University, Can Tho 94000, VietnamInstitute of Liberal Arts and Sciences, Tohoku University, 41 Kawauchi, Aoba-ku, Sendai 980-8576, JapanThe Vietnamese Mekong Delta (VMD) faces increasing challenges due to upstream hydrological fluctuations and climate change, necessitating optimized water management strategies. Sluice gates play a critical role in regulating water levels, yet their effectiveness under different operational modes remains insufficiently assessed. This study examines water level fluctuations under three sluice gate operation scenarios implemented along the West Sea dike in the Long Xuyen Quadrangle, Kien Giang Province, using the MIKE 11 hydrodynamic model. The model was calibrated and validated using the observed data, yielding high accuracy at key sluice gates, including Kien River and Ba Hon. Three sluice gate management scenarios were tested: (1) the current automatic and partially forced operation, (2) fully automatic gate control, and (3) fully forced hydraulic operation. The simulation results indicate that Scenario 3 maintained water levels above +0.6 m more frequently, ensuring better water availability for irrigation and domestic use, while Scenarios 1 and 2 resulted in lower water levels at certain locations. Additionally, forced operation led to higher gate opening and closing frequencies at key sluices, allowing for more adaptive control over water levels. These findings emphasize the benefits of proactive sluice gate management in improving water regulation and mitigating the water scarcity risks. This study is among the first to provide empirical, scenario-based evidence comparing fully forced, automatic, and mixed sluice gate strategies under varying hydrological conditions in the Long Xuyen Quadrangle.https://www.mdpi.com/2306-5338/12/5/102sluice gate operationwater level regulationhydrodynamic modelingMIKE 11Long Xuyen QuadrangleVietnamese Mekong Delta |
| spellingShingle | Dinh Van Duy Nguyen Thai An Tran Van Ty Lam Tan Phat Ngo Thanh Toan Huynh Vuong Thu Minh Nigel K. Downes Hitoshi Tanaka Evaluating Water Level Variability Under Different Sluice Gate Operation Strategies: A Case Study of the Long Xuyen Quadrangle, Vietnam Hydrology sluice gate operation water level regulation hydrodynamic modeling MIKE 11 Long Xuyen Quadrangle Vietnamese Mekong Delta |
| title | Evaluating Water Level Variability Under Different Sluice Gate Operation Strategies: A Case Study of the Long Xuyen Quadrangle, Vietnam |
| title_full | Evaluating Water Level Variability Under Different Sluice Gate Operation Strategies: A Case Study of the Long Xuyen Quadrangle, Vietnam |
| title_fullStr | Evaluating Water Level Variability Under Different Sluice Gate Operation Strategies: A Case Study of the Long Xuyen Quadrangle, Vietnam |
| title_full_unstemmed | Evaluating Water Level Variability Under Different Sluice Gate Operation Strategies: A Case Study of the Long Xuyen Quadrangle, Vietnam |
| title_short | Evaluating Water Level Variability Under Different Sluice Gate Operation Strategies: A Case Study of the Long Xuyen Quadrangle, Vietnam |
| title_sort | evaluating water level variability under different sluice gate operation strategies a case study of the long xuyen quadrangle vietnam |
| topic | sluice gate operation water level regulation hydrodynamic modeling MIKE 11 Long Xuyen Quadrangle Vietnamese Mekong Delta |
| url | https://www.mdpi.com/2306-5338/12/5/102 |
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