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Dilemma of a small dam with large basin area under climate change condition

  • Jeong-Hyeok Ma (School of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Chulsang Yoo (School of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Tae-Sup Yun (Department of Civil and Environmental Engineering, Yonsei University) ;
  • Dongwhi Jung (School of Civil, Environmental and Architectural Engineering, Korea University)
  • Received : 2024.01.03
  • Accepted : 2024.03.31
  • Published : 2024.05.25

Abstract

Problems of under-sized dams (small dams with large basin area) could get worse under the global warming condition. This study evaluates the possible change of these problems with the Namgang Dam, an under-sized dam in Korea. For this purpose, first, this study simulates the dam inflow data using a rainfall-runoff model, which are then used as input for the reservoir operation. As a result, daily dam storage, dam release, and dam water supply are derived and compared for both past observed period (1973~2022) and future simulated period (2006~2099) based on the global warming scenarios. Summarizing the results are as follows. First, the inflow rate in the future is expected to be increased significantly. The maximum inflow could be twice of that observed in the past. As a result, it is also expected that the frequency of the water level reaching the high level is increasing. Also, the amount and frequency of dam release are to be increased in the future period. More seriously, this increase is expected to be concentrated on rather extreme cases with large dam release volume. Simply, the condition for flood protection in the downstream of the Namgang Dam is becoming worse and worse. Ironically, the severity of water shortage problem is also expected to become much worse. As the most extreme case, the frequency of no water supply was zero in the observed period, but in the future period, it becomes once every five years. Both the maximum consecutive shortage days and the total shortage volume are expected to become more than twice in the future period. To prevent or mitigate this coming problem of an under-sized dam, the only countermeasure at this moment seems to be its redevelopment. Simply a bigger dam with larger dam reservoir can handle this adverse effect more easily.

Keywords

Acknowledgement

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. NRF-2021R1A5A1032433).

References

  1. Barclay, J.R., Topp, S.N., Koenig, L.E., Sleckman, M.J. and Appling, A.P. (2023), "Train, inform, borrow, or combine? Approaches to process-guided deep learning for groundwater-influenced stream temperature prediction", Water Resour. Res., 59(12), e2023WR035327. https://doi.org/10.1029/2023WR035327.
  2. Bates, B., Kundzewicz, Z.W., Wu, S. and Palutikof, J. (2008), "Climate change and water - IPCC Technical Paper VI", Technical Paper of the Intergovernmental Panel on Climate Change, Geneva, Switzerland.
  3. BDI (1994), Water Scarcity and Countermeasures, Busan Development Institute, Busan, Korea.
  4. Bekele, W.T., Haile, A.T. and Rientjes, T. (2021), "Impact of climate change on the streamflow of the Arjo-Didessa catchment under RCP scenarios", J. Water Climate Change, 12(6), 2325-2337. https://doi.org/10.2166/wcc.2021.307.
  5. Chaleeraktrakoon, C. and Chinsomboon, Y. (2015), "Dynamic rule curves for flood control of a multipurpose dam", J. Hydro Environ. Res., 9(1), 133-144. https://doi.org/10.1016/j.jher.2014.11.002.
  6. Fletcher, S.G. and Ponnambalam, K. (1996), "Estimation of reservoir yield and storage distribution using moments analysis", J. Hydrol., 182(1-4), 259-275. https://doi.org/10.1016/0022-1694(95)02946-X.
  7. Graf, W.L. (2006), "Downstream hydrologic and geomorphic effects of large dams on American rivers", Geomorphol., 79(3-4), 336-360. https://doi.org/10.1016/j.geomorph.2006.06.022.
  8. Gross, E.J. and Moglen, G.E. (2007), "Estimating the hydrological influence of Maryland state dams using GIS and the HEC-1 model", J. Hydrol. Eng., 12(6), 690-693. https://doi.org/10.1061/(ASCE)1084-0699(2007)12:6(690).
  9. Gunkel, G. (2009), "Hydropower-A green energy? Tropical reservoirs and greenhouse gas emissions", CLEAN Soil Air Water, 37(9), 726-734. https://doi.org/10.1002/clen.200900062.
  10. Ion, I.V. and Ene, A. (2021), "Evaluation of greenhouse gas emissions from reservoirs: A review", Sustainab., 13(21), 11621. https://doi.org/10.3390/su132111621.
  11. IPCC (2014), Climate Change 2014: Synthesis Report. Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Intergovernmental Panel on Climate Change, Geneva, Switzerland.
  12. Jeon, I.H. (1981), "Construction project of Chungju Multipurpose Dam", J. Korean Water Resour. Assoc., 14(2), 34-40.
  13. Jin, Y. and Lee, S. (2017), "An additional water supply method from upstream dams to lessen water supply shortage at downstream control points using a heuristic method", J. Korean Soc. Hazard Mitig., 17(6), 507-514. https://doi.org/10.9798/KOSHAM.2017.17.6.507.
  14. Jung, Y., Kim, N.W. and Lee, J.E. (2015), "Dam effects on spatial extension of flood discharge data and flood reduction scale II", J. Korea Water Resour. Assoc., 48(3), 221-231. http://doi.org/10.3741/JKWRA.2015.48.3.221
  15. K-water (1991), Namgang Multipurpose Dam Management Yearbook, K-water, Daejeon, Korea.
  16. Khaddor, I., Achab, M., Soumali, M.R., Benjbara, A. and Alaoui, A.H. (2021), "The impact of the construction of a dam on flood management", Civil Eng. J., 7(2), 343-356. http://doi.org/10.28991/cej-2021-03091658.
  17. Kim, H.G., Lee, D.K., Park, C., Kil, S., Son, Y. and Park, J.H. (2015), "Evaluating landslide hazards using RCP 4.5 and 8.5 scenarios", Environ. Earth Sci., 73, 1385-1400. https://doi.org/10.1007/s12665-014-3775-7.
  18. Kim, H.J., Ahn, J.H., Choi, C.W. and Yi, J.E. (2011), "Optimal reservoir operation using goal programming for flood season", J. Korean Soc. Hazard Mitig., 11(2), 147-156. https://doi.org/10.9798/KOSHAM.2011.11.2.147
  19. Kindler, J. (1992), "Rationalizing water requirements with aid of fuzzy allocation model", J. Water Resour. Plan. Manag., 118(3), 308-323. https://doi.org/10.1061/(ASCE)0733-9496(1992)118:3(308).
  20. Klemes, V. (1979), "Storage mass-curve analysis in a systems-analytic perspective", Water Resour. Res., 15(2), 359-370. https://doi.org/10.1029/WR015i002p00359.
  21. KICT (1996), "Dam operation status and improvement direction in dry season and flood season: Focusing on the Soyang River Multipurpose Dam in the Han River basin", Korea Institute of Civil Engineering and Building Technology, Goyang, Korea.
  22. Kwak, J. (2021), "A study for the target water level of the dam for flood control", J. Korea Water Resour. Assoc., 54(7), 545-552. https://doi.org/10.3741/JKWRA.2021.54.7.545.
  23. Leavesley, G.H., Lichty, R.W., Troutman, B.M. and Saindon, L.G. (1983), "Precipitation-runoff modeling system: User's manual", Water-Resources Investigations Report; U.S. Geological Survey, Denver, CO, USA.
  24. Lee, D., Choi, J., Shin, S. and Yi, J. (2013), "A study on proper number of subbasin division for runoff analysis using Clark and Modclark methods in midsize basins", KSCE J. Civil Eng., 33(1), 157-170. https://doi.org/10.12652/Ksce.2013.33.1.157.
  25. Little, J.D. (1955), "The use of storage water in a hydroelectric system", J. Oper. Res. Soc., 3(2), 187-197. https://doi.org/10.1287/opre.3.2.187.
  26. Ma, J.H., Yoo, C., Na, W. and Lee, J.S. (2023a), "Reason for less water supply shortages under climate change condition: Evaluation of future rainfall data", J. Water Climate Change, 14(10), 3855-3877. https://doi.org/10.2166/wcc.2023.469.
  27. Ma, J.H., Yoo, C., Song, S.U., Na, W., Cho, E., Song, S.K. and Chang, K.H. (2023b), "Different effect of cloud seeding on three dam basins, Korea", Water, 15(14), 2555. https://doi.org/10.3390/w15142555.
  28. MOCT (2006), "A survey report on Geum River basin", Ministry of Constructional and Transportation, Sejong, Korea.
  29. ME (2022), "Austerity operation of the Namgang Dam due to rainfall shortage in the western part of Kyungnam Province", Ministry of Environment, Seoul, Korea.
  30. MOLIT (2013), "The Namgang River basic plan (Revised) report", Ministry of Land, Infrastructure and Transport, Seoul, Korea.
  31. MLTMA (2008), "Basic plan for hydrological survey establishment report (2010-2019)", Ministry of Land, Transport and Maritime Affairs, Sejong, Korea.
  32. National Assembly Research Service (NARS) (2014), "Problems and improvement measures in re-evaluating existing dams", National Assembly Research Service, Seoul, Korea.
  33. Papamichail, D.M. and Georgiou, P.E. (2001), "Seasonal arima inflow models for reservoir sizing 1", J. Am. Water Resour. Assoc., 37(4), 877-885. https://doi.org/10.1111/j.1752-1688.2001.tb05519.x.
  34. Park, S.J. and Lee, C.W. (2018), "Simulation of the flood damage area of the Imjin River basin in the case of North Korea's Hwanggang Dam discharge", Korean J. Remote Sens., 34(6_1), 1033-1039. https://doi.org/10.7780/kjrs.2018.34.6.1.15.
  35. Rippl, W. (1883), "The capacity of storage-reservoirs for water-supply", Min. Proc. Inst. Civil Eng., 71(1883), 270-278.
  36. Romano, S.P., Baer, S.G., Zaczek, J.J. and Williard, K.W. (2009), "Site modelling methods for detecting hydrologic alteration of flood frequency and flood duration in the floodplain below the carlyle dam, lower Kaskaskia River, Illinois, USA", River Res. Appl., 25(8), 975-984. https://doi.org/10.1002/rra.1195.
  37. Rosenbrock, H. (1960), "An automatic method for finding the greatest or least value of a function", Comput. J., 3(3), 175-184. https://doi.org/10.1093/comjnl/3.3.175.
  38. Ryu, J.H., Kim, J.E., Lee, J.Y., Kwon, H.H. and Kim, T.W. (2022), "Estimating optimal design frequency and future hydrological risk in local river basins according to RCP scenarios", Water, 14(6), 945. https://doi.org/10.3390/w14060945.
  39. Silva, A.T. and Portela, M.M. (2013), "Stochastic assessment of reservoir storage-yield relationships in Portugal", J. Hydrol. Eng., 18(5), 567-575. https://doi.org/10.1061/(ASCE)HE.1943-5584.0000650.
  40. Tejada-Guibert, J.A., Johnson, S.A. and Stedinger, J.R. (1993), "Comparison of two approaches for implementing multireservoir operating policies derived using stochastic dynamic programming", Water Resour. Res., 29(12), 3969-3980. https://doi.org/10.1029/93WR02277.
  41. Teoh, C.H. and McMahon, T.A. (1982), "Evaluation of rapid reservoir storage-yield procedures", Adv. Water Resour., 5(4), 208-216. https://doi.org/10.1016/0309-1708(82)90002-1.
  42. Vogel, R.M. and Stedinger, J.R. (1987), "Generalized storage-reliability-yield relationships", J. Hydrol., 89(3-4), 303-327. https://doi.org/10.1016/0022-1694(87)90184-3.
  43. WCD (2000), Dams and Development: A New Framework for Decision-Making: The Report of the World Commission on Dams, Earthscan, London, UK.
  44. Yeh, W.W.G. (1985), "Reservoir management and operations models: A state-of-the-art review", Water Resour. Res., 21(12), 1797-1818. https://doi.org/10.1029/WR021i012p01797.
  45. Yoo, C. Jun, C. and Lee, J. (2017), "Storage effect of dam reservoirs: Evaluation of three nonlinear reservoir models", Water Sci. Technol.: Water Supply, 17(5), 1436-1446. https://doi.org/10.2166/ws.2017.008.
  46. Yoo, C., Na, W., Cho, E., Chang, K.H., Yum, S.S. and Jung, W. (2022), "Evaluation of cloud seeding on the securement of additional water resources in the Boryeong Dam Basin, Korea", J. Hydrol., 613, 128480. https://doi.org/10.1016/j.jhydrol.2022.128480.
  47. Yu, W., Moon, H., Jeong, A., Kim, S. and Jung, K. (2016), "Assessment of rainfall and flood forecasts using numerical weather prediction data", J. Korean Soc. Hazard Mitig., 16(6), 83-94. https://doi.org/10.9798/KOSHAM.2016.16.6.83.