Assessment of water supply reliability in the Geum River Basin using univariate climate response functions: a case study for changing instreamflow managements

Daeha Kim; Si Jung Choi; Su Hyung Jang; Dae Hu Kang

doi:10.3741/JKWRA.2023.56.12.993

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2023 Vol.56, Issue 12 Preview Page

Research Article

Assessment of water supply reliability in the Geum River Basin using univariate climate response functions: a case study for changing instreamflow managements 단변량 기후반응함수를 이용한 금강수계 이수안전도 평가: 하천유지유량 관리 변화를 고려한 사례연구

31 December 2023. pp. 993-1003

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Abstract

Due to the increasing greenhouse gas emissions, the global mean temperature has risen by 1.1°C compared to pre-industrial levels, and significant changes are expected in functioning of water supply systems. In this study, we assessed impacts of climate change and instreamflow management on water supply reliability in the Geum River basin, Korea. We proposed univariate climate response functions, where mean precipitation and potential evaporation were coupled as an explanatory variable, to assess impacts of climate stress on multiple water supply reliabilities. To this end, natural streamflows were generated in the 19 sub-basins with the conceptual GR6J model. Then, the simulated streamflows were input into the Water Evaluation And Planning (WEAP) model. The dynamic optimization by WEAP allowed us to assess water supply reliability against the 2020 water demand projections. Results showed that when minimizing the water shortage of the entire river basin under the 1991-2020 climate, water supply reliability was lowest in the Bocheongcheon among the sub-basins. In a scenario where the priority of instreamflow maintenance is adjusted to be the same as municipal and industrial water use, water supply reliability in the Bocheongcheon, Chogang, and Nonsancheon sub-basins significantly decreased. The stress tests with 325 sets of climate perturbations showed that water supply reliability in the three sub-basins considerably decreased under all the climate stresses, while the sub-basins connected to large infrastructures did not change significantly. When using the 2021-2050 climate projections with the stress test results, water supply reliability in the Geum River basin was expected to generally improve, but if the priority of instreamflow maintenance is increased, water shortage is expected to worsen in geographically isolated sub-basins. Here, we suggest that the climate response function can be established by a single explanatory variable to assess climate change impacts of many sub-basin’s performance simultaneously.

Keywords

Decision-centric assessment

Water supply reliability

Water allocation simulations

Instreamflow management policies

대기온실가스 증가로 전지구 평균기온은 산업화 이전 대비 1.1°C 상승했고 수자원시스템의 공급능력에 상당한 변화가 예상된다. 본 연구에서는 금강수계 내 여러 중권역의 이수안전도와 기후조건의 관계(기후반응함수)를 단변량 함수로 나타내 기후민감도를 동시에 평가할 수 있는 방법을 제안하였다. 사례연구를 위해 GR6J 모형으로 중권역별 자연유출을 모의했고 이를 Water Evaluation And Planning (WEAP) 최적모형에 입력해 2030년 수요전망에 대한 공급신뢰도를 평가하였다. 여러 중권역의 이수안전도를 동시에 비교하기 위해 평균 강수량과 잠재증발산량의 비율을 독립변수 사용하여 단변량 기후민감도 함수를 개발하였다. 사례연구 결과, 1991-2020 자연유출을 이용해 수계전체 물부족을 최소화시키는 운영을 가정했을 때 공급신뢰도는 19개 중권역 중 보청천유역에서 가장 낮았다. 하천유지유량의 우선순위를 농업용수와 생공용수과 동일하게 조정한 시나리오에서는 보청천유역, 초강유역, 논산천유역의 이수안전도가 크게 감소하는 것으로 나타났다. 보청천유역, 초강유역, 논산천유역의 이수안전도는 모든 기후스트레스 테스테에서 크게 감소한 반면, 미호강유역, 금강공주유역, 금강하구유역은 아주 건조한 기후조건에서만 이수안전도가 감소했다. 대규모 인프라에서의 공급이 원활한 중권역의 기후민감도는 크게 변하지 않았다. 2021-2050 기후전망을 민감도함수에 적용했을 때 금강수계의 공급신뢰도는 대체로 좋아질 가능성이 높지만 하천유지유량 우선순위를 높이게 되면 지형적, 인위적으로 고립된 중권역에서 물부족은 심해질 것으로 분석되었다. 2021-2050기간 금강수계의 이수안전도는 기후스트레스 보다 하천관리정책의 변화에 더 큰 영향을 받을 것으로 판단된다.

키워드

기후스트레스 테스트

이수안전도

물배분모형

하천유지유량 관리정책

References

Allen, R.G., Pereira, L.S., Raes, D., and Smith, M. (1998). Crop evapotranspiration-Guidelines for computing crop water requirements-FAO Irrigation and drainage paper 56. The Food and Agriculture Organization of the United Nations, Rome.

Apipattanavis, S., Podesta, G., Rajagopalan, B., and Katz, R.W. (2007). "A semiparametric multivariate and multisite weather generator." Water Resources Research, Vol. 43, W11401. 10.1029/2006WR005714

Berghuijs, W.R., Larsen, J.R., van Emmerik, T.H.M., and Woods, R.A. (2017). "A global assessment of runoff sensitivity to changes in precipitation, potential evaporation, and other factors." Water Resources Research, Vol. 53, pp.8475-8486. 10.1002/2017WR021593

Brêda, J.P.L.F., de Paiva, R.C.D., Collischon, W., Bravo, J.M., Siqueira, V.A., and Steinke, E.B. (2020). "Climate change impacts on South American water balance from a continental-scale hydrological model driven by CMIP5 projections." Climatic Change, Vol. 159, pp.503-522. 10.1007/s10584-020-02667-9

Brown, C., and Wilby, R.L. (2012). "An alternate approach to assessing climate risks." Eos, Transactions American Geophysical Union, Vol. 93, pp.401-402. 10.1029/2012EO410001

Brown, C., Ghile, Y., Laverty, M., and Li, K., (2012). "Decision scaling: Linking bottom-up vulnerability analysis with climate projections in the water sector." Water Resources Research, Vol. 48, W09537. 10.1029/2011WR011212

Brown, C., Steinschneider, S., Ray, P., Wi, S., Basdekas, L., and Yates, D. (2019). "Decision Scaling (DS): Decision support for climate change." Decision Making under Deep Uncertainty: From Theory To Practice, Edited by Marchau, V.A.W., Walker, W.E., Bloemen, P.J.T.M., and Popper, S.W., Springer, Cham, Switzerland, pp. 255-287. 10.1007/978-3-030-05252-2_12

Daly, C., Halbleib, M., Smith, J.I., Gibson, W.P., Doggett, M.K., Taylor, G.H., Curtis, J., and Pasteris, P.P. (2008). "Physiographically sensitive mapping of climatological temperature and precipitation across the conterminous United States." International Journal of Climatology: A Journal of the Royal Meteorological Society, Vol. 28, No. 15, pp. 2031-2064. 10.1002/joc.1688

Dilling, L., Daly, M.E., Travis, W.R., Wilhelmi, O.V., and Klein, R.A. (2015). "The dynamics of vulnerability: Why adapting to climate variability will not always prepare us for climate change." Wiley Interdisciplinary Reviews: Climate Change, Vol. 6, No. 4, pp. 413-425. 10.1002/wcc.341

Feng, H., and Zhang, M. (2015). "Global land moisture trends: Drier in dry and wetter in wet over land." Scientific Reports, Vol. 5, 18018. 10.1038/srep1801826658146PMC4676011

Foley, M.M., Bellmore, J.R., O'Connor, J.E., Duda, J.J., East, A.E., Grant, G.E., Anderson, C.W., Bountry, J.A., Collins, M.J., Connolly, P.J., and Craig, L.S. (2017). "Dam removal: Listening in." Water Resources Research, Vol. 53, pp. 5229-5246. 10.1002/2017WR020457

Georgakakos, A.P., Yao, H., Kistenmacher, M., Georgakakos, K.P., Graham, N.E., Cheng, F.-Y., Spencer, C., and Shamir, E. (2012). "Value of adaptive water resources management in Northern California under climatic variability and change: Reservoir management." Journal of Hydrology, Vol. 412-413, pp. 34-46. 10.1016/j.jhydrol.2011.04.038

Gupta, H.V., Kling, H., Yilmaz, K.K., and Martinez, G.F. (2009). "Decomposition of the mean squared error and NSE performance criteria: Implications for improving hydrological modelling." Journal of Hydrology, Vol. 377, pp. 80-91. 10.1016/j.jhydrol.2009.08.003

Intergovernmental Panel on Climate Change (IPCC) (2021). Climate change 2021: The physical science basis. Contribution of working group I to the sixth assessment report of the Intergovernmental Panel on Climate Change, Edited by Masson-Delmotte, V., Zhai, P., Pirani, A., Connors, S.L., Péan, C., Berger, S., Caud, N., Chen, Y., Goldfarb, L., Gomis, M.I., Huang, M., Leitzell, K., Lonnoy, E., Matthews, J.B.R., Maycock, T.K., Waterfield, T., Yelekçi, O., Yu, R., and Zhou, B., Cambridge University Press, Cambridge, United Kingdom and New York, NY, U.S., pp. 1513-1765.

Intergovernmental Panel on Climate Change (IPCC) (2023). Summary for policymakers. Climate change 2023: Synthesis report. Contribution of working groups I, II and III to the sixth assessment report of the intergovernmental panel on climate change, Edited by Core Writing Team, Lee, H., and Romero J., Geneva, Switzerland, pp. 1-34.

Jander, V., Vicuña, S., Melo, O., and Lorca, Á. (2023). "Adaptation to climate change in basins within the context of the water-energy-food nexus." Journal of Water Resources Planning and Management, Vol. 149, 04023060. 10.1061/JWRMD5.WRENG-5566

Jang, O.J., Moon, Y.I., and Moon, H.T. (2021). "Methodology for assessment and forecast of drought severity based on the water balance analysis." Journal of Korea Water Resources Association, Vol. 54, No. 4, pp.241-254. 10.3741/JKWRA.2021.54.4.241

Jeong, Y., and Eum, H.-I. (2015). "Application of a statistical interpolation method to correct extreme values in high-resolution gridded climate variables." Journal of Climate Change Research, Vol. 6, pp.331-334. 10.15531/ksccr.2015.6.4.331

Kim, D., and Chun, J.A. (2021). "Revisiting a two-parameter budyko equation with the complementary evaporation principle for proper consideration of surface energy balance." Water Resources Research, Vol. 57, e2021WR030838. 10.1029/2021WR030838

Kim, D., Chun, J.A., and Aikins, C.M. (2018). "An hourly-scale scenario-neutral flood risk assessment in a mesoscale catchment under climate change." Hydrological Processes, Vol. 32, pp. 3416-3430. 10.1002/hyp.13273

Kim, D., Chun, J.A., and Choi, S.J. (2019a). "Incorporating the logistic regression into a decision-centric assessment of climate change impacts on a complex river system." Hydrology and Earth System Sciences, Vol. 23, pp. 1145-1162. 10.5194/hess-23-1145-2019

Kim, D., Eum, H.I., Kaluarachchi, J.J., and Chun, J.A. (2019b). "A sensitivity-based analysis for managing storage capacity of a small agricultural reservoir under drying climate." Agricultural Water Management, Vol. 213, pp. 410-418. 10.1016/j.agwat.2018.10.040

Kim, D., Jung, I.W., and Chun, J.A. (2017). "A comparative assessment of rainfall-runoff modelling against regional flow duration curves for ungauged catchments." Hydrology and Earth System Sciences, Vol. 21, pp.5647-5661. 10.5194/hess-21-5647-2017

Kwon, H.H., Lall, U., and Khalil, A.F. (2007). "Stochastic simulation model for nonstationary time series using an autoregressive wavelet decomposition: Applications to rainfall and temperature." Water Resources Research, Vol. 43, W05407. 10.1029/2006WR005258

Lee, S.C., and Kim, D. (2023). "A comparative study of conceptual model and machine learning model for rainfall-runoff simulation." Journal of Korea Water Resources Association, Vol. 56, pp. 563-574. 10.3741/JKWRA.2023.56.9.563

Ma, N., Szilagyi, J., and Zhang, Y. (2021). "Calibration-free complementary relationship estimates terrestrial evapotranspiration globally." Water Resources Research, Vol. 57, e2021WR029691. 10.1029/2021WR029691

Mianabadi, A., Davary, K., Pourreza-Bilondi, M., and Coenders-Gerrits, A.M.J. (2020). "Budyko framework; Towards non-steady state conditions." Journal of Hydrology, Vol. 588, 125089. 10.1016/j.jhydrol.2020.125089

Ministry of Environment (ME) (2021). The 1st national water management plan (2021-2030).

Ministry of Land, Infrastructure and Transport (MOLIT) (2016). National water resources plan (2001-2020) - 3rd revision (2016-2020).

No, S.-H., Jung, K.S., Park, J.H., and Ryoo, K.S. (2013). "Water supply change outlook for Geum River Basin considering RCP climate change scenario." Journal of Korea Water Resources Association, Vol. 46, pp. 505-517. 10.3741/JKWRA.2013.46.5.505

O'Neill, B.C., Tebaldi, C., Van Vuuren, D.P., Eyring, V., Friedlingstein, P., Hurtt, G., Knutti, R., Kriegler, E., Lamarque, J.F., Lowe, J., and Meehl, G.A. (2016). "The scenario model intercomparison project (ScenarioMIP) for CMIP6." Geoscientific Model Development, Vol. 9, pp.3461-3482. 10.5194/gmd-9-3461-2016

Perrin, C., Michel, C., and Andreassian, V. (2003). "Improvement of a parsimonious model for streamflow simulation." Journal of Hydrology, Vol. 279, pp.275-289. 10.1016/S0022-1694(03)00225-7

Poff, N.L., Brown, C.M., Grantham, T.E., Matthews, J.H., Palmer, M.A., Spence, C.M., Wilby, R.L., Haasnoot, M., Mendoza, G.F., Dominique, K.C., and Baeza, A. (2016). "Sustainable water management under future uncertainty with eco-engineering decision scaling." Nature Climate Change, Vol. 6, pp. 25-34. 10.1038/nclimate2765

Priestley, C.H.B., and Taylor, R.J. (1972). "On the assessment of surface heat flux and evaporation using large-scale parameters." Monthly Weather Review, Vol. 100, pp. 81-92. 10.1175/1520-0493(1972)100<0081:OTAOSH>2.3.CO;2

Prudhomme, C., Wilby, R.L., Crooks, S., Kay, A.L., and Reynard, N.S. (2010). "Scenario-neutral approach to climate change impact studies: Application to flood risk." Journal of Hydrology, Vol. 390, pp. 198-209. 10.1016/j.jhydrol.2010.06.043

Pushpalatha, R., Perrin, C., Le Moine, N., Mathevet, T., and Andreassian, V. (2011). "A downward structural sensitivity analysis of hydrological models to improve low-flow simulation." Journal of Hydrology, Vol. 411, pp. 66-76. 10.1016/j.jhydrol.2011.09.034

Roderick, M.L., and Farquhar, G.D. (2011). "A simple framework for relating variations in runoff to variations in climatic conditions and catchment properties." Water Resources Research, Vol. 47, No. 12, W00G07. 10.1029/2010WR009826

Schlef, K.E., Steinschneider, S., and Brown, C.M. (2017). "Spatiotemporal impacts of climate and demand on water supply in the Apalachicola-Chattahoochee-Flint Basin." Journal of Water Resources Planning and Management, Vol. 144, 05017020. 10.1061/(ASCE)WR.1943-5452.0000865

Schlef, K.E., Steinschneider, S., and Brown, C.M. (2018). "Spatiotemporal impacts of climate and demand on water supply in the Apalachicola-Chattahoochee-Flint Basin." Journal of Water Resources Planning and Management, Vol. 144, 05017020. 10.1061/(ASCE)WR.1943-5452.0000865

Seneviratne, S.I., Corti, T., Davin, E.L., Hirschi, M., Jaeger, E.B., Lehner, I., Orlowsky, B., and Teuling, A.J. (2010). "Investigating soil moisture-climate interactions in a changing climate: A review." Earth-Science Reviews, Vol. 99, No. 3-4, pp. 125-161. 10.1016/j.earscirev.2010.02.004

Steinschneider, S., and Brown, C. (2013). "A semiparametric multivariate, multisite weather generator with low-frequency variability for use in climate risk assessments." Water Resources Research, Vol. 49, pp. 7205-7220. 10.1002/wrcr.20528

Szilagyi, J. (2021). "On the thermodynamic foundations of the complementary relationship of evaporation." Journal of Hydrology, Vol. 593, 125916. 10.1016/j.jhydrol.2020.125916

Trenberth, K.E., Dai, A., Van Der Schrier, G., Jones, P.D., Barichivich, J., Briffa, K.R., and Sheffield, J. (2014). "Global warming and changes in drought." Nature Climate Change, Vol. 4, pp. 17-22. 10.1038/nclimate2067

Turner, S.W., Marlow, D., Ekström, M., Rhodes, B.G., Kularathna, U., and Jeffrey, P.J. (2014). "Linking climate projections to performance: A yield-based decision scaling assessment of a large urban water resources system." Water Resources Research, Vol. 50, No. 4, pp. 3553-3567. 10.1002/2013WR015156

Wang, B., Liang, X.J., Zhang, H., Wang, L., and Wei, Y.M. (2014). "Vulnerability of hydropower generation to climate change in China: Results based on Grey forecasting model." Energy Policy, Vol. 65, pp.701-707. 10.1016/j.enpol.2013.10.002

Weaver, C.P., Lempert, R.J., Brown, C., Hall, J.A., Revell, D., and Sarewitz, D. (2013). "Improving the contribution of climate model information to decision making: the value and demands of robust decision frameworks." WIREs Climate Change, Vol. 4, pp. 39-60. 10.1002/wcc.202

Whateley, S., Steinschneider, S., and Brown, C. (2014). "A climate change range-based method for estimating robustness for water resources supply." Water Resources Research, Vol. 50, pp. 8944-8961. 10.1002/2014WR015956

Xiong, J., Guo, S., Abhishek, Chen, J., and Yin, J. (2022). "Global evaluation of the "dry gets drier, and wet gets wetter" paradigm from a terrestrial water storage change perspective." Hydrology and Earth System Sciences, Vol. 26, pp. 6457-6476. 10.5194/hess-26-6457-2022

Yang, T., Ding, J., Liu, D., Wang, X., and Wang, T. (2019). "Combined use of multiple drought indices for global assessment of dry gets drier and wet gets wetter paradigm." Journal of Climate, 32, pp. 737-748. 10.1175/JCLI-D-18-0261.1

Zhou, S., Williams, A.P., Berg, A.M., Cook, B.I., Zhang, Y., Hagemann, S., Lorenz, R., Seneviratne, S.I., and Gentine, P. (2019). "Land-atmosphere feedbacks exacerbate concurrent soil drought and atmospheric aridity." Proceedings of the National Academy of Sciences, Vol. 116, pp. 18848-18853. 10.1073/pnas.190495511631481606PMC6754607

Information

Publisher :KOREA WATER RESOURECES ASSOCIATION
Publisher(Ko) :한국수자원학회
Journal Title :Journal of Korea Water Resources Association
Journal Title(Ko) :한국수자원학회 논문집
Volume : 56
No :12
Pages :993-1003
Received Date : 2023-11-02
Revised Date : 2023-12-09
Accepted Date : 2023-12-12
DOI :https://doi.org/10.3741/JKWRA.2023.56.12.993

Journal of Korea Water Resources Association ISSN:2799-8746(Print) 2799-8754(Online) 한국수자원학회 논문집

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