Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Quantitative separation of impacting factors to runoff variation using hydrological model and hydrological sensitivity analysis

수문모형과 수문학적 민감도분석을 이용한 유량변동 요인의 정량적 분리

  • Kim, Hyeong Bae (Department of Civil Engineering, Kangwon National University) ;
  • Kim, Sang Ug (Department of Civil Engineering, Kangwon National University) ;
  • Lee, Cheol-Eung (Department of Civil Engineering, Kangwon National University)
  • 김형배 (강원대학교 공과대학 토목공학과) ;
  • 김상욱 (강원대학교 공과대학 토목공학과) ;
  • 이철응 (강원대학교 공과대학 토목공학과)
  • Received : 2016.12.16
  • Accepted : 2017.01.26
  • Published : 2017.03.31
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Abstract

The variation in runoff due to global climate change and urbanization should be identified quantitatively because these two factors have been significantly accelerated during the last three decades in South Korea. However, only a few research to analyze the impacts due to two factors over different time scales can be found. Therefore, in this study, the hydrological model based approach and the hydrological sensitivity approach were used to separate relative impacts by two factors on monthly, seasonal, and annual time scales at the Soyang River upper basin and the Seom River basin in South Korea. The 3 techniques such as the double mass curve method, the Pettitt's test, and the BCP analysis were performed to detect change point occurred by abrupt change in the collected observed runoff. After detection of change ponts, SWAT models calibrated on the natural periods were used to calculate the changes due to human activities. Also, 6 Budyko based methods were auxiliary to verify the results from hydrological based approach.

우리나라는 지난 30년 동안 기후변화 및 도시화 등으로 인한 변화가 급격하게 진행된 바 있으므로, 두 가지 요소들로 인한 유량의 변동량을 정량화하여 분석할 필요가 있다. 그러나 유량의 변동량을 특정 원인별로 구분하여 분석하고자 하는 국내 연구는 매우 미미한 형편이며, 다양한 시간단위를 이용한 원인별 유량 변동량의 산정에 관한 연구는 더욱 찾아보기 힘들다. 따라서 본 연구에서는 기후변화 및 인간활동으로 인한 유량 변동량을 정량적으로 분리하기 위하여 수문모형을 이용한 방법과 수문학적 민감도(hydrological sensitivity) 분석 방법을 소양강 상류유역 및 섬강 유역에 대해 적용하고 유량 변동량의 결과를 월별, 분기별 및 연별로 구분하여 제시하였다. 인간활동으로 인해 발생되는 급진적인 변동점을 탐색하기 위해 이중누가곡선, Pettitt 검정 및 베이지안 변동점(Bayesian change point) 분석을 시행하였으며, 탐색된 변동점을 활용하여 변동점 이전 구간에 대해 보정 및 검증된 SWAT모형과 6가지의 Budyko 곡선 함수들로부터 각각 유량 변동량을 산정하여 수문모형에 의한 유량 변동량을 검증하였다.

Keywords

References

  1. Abdul Aziz, O. I., and Burn, D. H. T. (2006). "Trends and variability in the hydrological regime of the Mackenzie River basin." Journal of Hydrology, Vol. 319 pp. 282-294. https://doi.org/10.1016/j.jhydrol.2005.06.039
  2. Akurut, M., Willems, P., and Niwagaba, C. B. (2014). "Potential impacts of climate change on precipitation over Lake Victoria, East Africa, in the 21st Century." Water, Vol. 6, pp. 2634-2659. https://doi.org/10.3390/w6092634
  3. Arora, V. K. (2002). "The use of the aridity index to assess climate change effect on annual runoff." Journal of Hydrology, Vol. 265, No. 1-4, pp. 164-177. https://doi.org/10.1016/S0022-1694(02)00101-4
  4. Barry, D., and Hartigan J. A. (1992). "Product partition models for change point problems." The Annals of Statistics, Vol. 20, No. 1, pp. 260-279. https://doi.org/10.1214/aos/1176348521
  5. Barry, D., and Hartigan J. A. (1993). "A bayesian analysis for change point problems." Journal of the American Statistical Association, Vol. 88, No. 421, pp. 309-319. https://doi.org/10.2307/2290726
  6. Budyko, M. L. (1948). Evaporation under natural conditions, Gidrometeorizdat, Leningrad.
  7. Budyko, M. L. (1974). Climate and Life, Academic, San Diego, CA.
  8. Burn, D. H. (1994). "Hydrologic effects of climatic change in West Central Canada." Journal of Hydrology, Vol. 160, pp. 53-70. https://doi.org/10.1016/0022-1694(94)90033-7
  9. Carlin, B. P., Gelfand, A. E., and Smith, A. F. M. (1992). "Hierarchical bayesian analysis of changepoint problems." Journal of the Royal Statistical Society, Vol. 41, No. 2, pp. 389-405.
  10. Dooge, J. C. I., Bruen, M., and Parmentier, B. (1999). "A simple model for estimating the sensitivity of runoff to long-term changes in precipitation without a change in vegetation." Advances in Water Resources, Vol. 23, No. 2, pp.153-163. https://doi.org/10.1016/S0309-1708(99)00019-6
  11. Erdman, C., and Emerson, J. W. (1993). "bcp: An r package for performing a bayesian analysis of change point problems." Journal of statistical Software, Vol. 23, No. 3. pp. 1-13. https://doi.org/10.1016/0164-1212(93)90055-3
  12. Fu, B. P. (1981). "On the calculation of the evaporation from land surface." Journal of Atmospheric Sciences, Vol. 5, pp. 23-31. (In Chinese with abstract in English).
  13. Jiang, S., Ren, L., Yong, B., Singh, V. P., Yang, X., and Yuan, F. (2011). "Quantifying the effects of climate variability and human activities on runoff from the Laohahe basin in northern China using three different methods." Hydrological processes, Vol. 25, No. 16, pp. 2492-2505. https://doi.org/10.1002/hyp.8002
  14. Koster, R. D., and Suarez, M. J. (1999). "A simple framework for examining the interannual variability of land surface moisture fluxes." Journal of Climate, Vol. 29, No. 24.
  15. Li, F., Zhang, G., and Xu, Y. J. (2016). "Assessing climate change impacts on water resources in the Songhua River basin." Water, Vol. 8, W8100420.
  16. Li, L. J., Zhang, L., Wang, H., Wang, J., Yang, J. W., Jiang, D. J., Li, J. Y., and Qin, D. Y. (2007). "Assessing the impact of climate variability and human activities on streamflow from the Wuding River basin in China." Hydrological Processes, Vol. 21, No. 25, pp. 3485-3491. https://doi.org/10.1002/hyp.6485
  17. Li, Z. L., Xu, Z. X., Li, J. Y., and Li, Z. J. (2008). "Shift trend and step changes for runoff time series in the Shiyang River basin, northwest China." Hydrological Processes, Vol. 22, No. 23, pp. 4639-4646. https://doi.org/10.1002/hyp.7127
  18. Liu, D., Chen, X., Lian, Y., and Lou, Z. (2010). "Impacts of climate change and human activities on surface runoff in the Dongjiang River basin of China." Hydrological processes, Vol. 24, No. 11, pp. 1487-1495. https://doi.org/10.1002/hyp.7609
  19. Liu, Q., Yang, Z., Cui, B., and Sun, T. (2009). "Temporal trends of hydro-climatic variables and runoff response to climatic variability and vegetation changes in the Yiluo River basin, China." Hydrological Processes, Vol. 23, No. 21, pp. 3030-3039. https://doi.org/10.1002/hyp.7414
  20. Nash, L. L., and Gleick, P. H. (1991). "Sensitivity of streamflow in the Colorado basin to climatic changes." Journal of Hydrology, Vol. 125, No. 3-4, pp. 221-241. https://doi.org/10.1016/0022-1694(91)90030-L
  21. Odongo, V. O., Van der Tol, C., Van Oel, P. R., Meins, F. M., Becht, R., Onyando, J., and Su, Z. (2015). "Characterisation of hydroclimatological trends and variability in the Lake Naivasha basin, Kenya." Hydrological Processes, Vol. 29, No. 15, pp. 3276-3293. https://doi.org/10.1002/hyp.10443
  22. Ol'dekop E. M. (1911). On evaporation from the surface of river basins. Trans. Meteorol, Obs. Univ. Tartu 4.
  23. Pettitt, A. N. (1979). "A non-parametric approach to the change-point problem." Journal of the Royal Statistical Society, Vol. 28, No. 2, pp. 126-135.
  24. Pike, J. G. (1964). "The estimation of annual runoff from meteorological data in a tropical climate." Journal of Hydrology, Vol. 2, No. 2, pp. 116-123. https://doi.org/10.1016/0022-1694(64)90022-8
  25. Rouge, C., Ge, Y., and Cai, X. (2013). "Detecting gradual and abrupt changes in hydrological records." Advances in Water Resources, Vol. 53, pp. 33-44 https://doi.org/10.1016/j.advwatres.2012.09.008
  26. Ryu, J. C., Kang, H. W., Choi, J. H., Gong, D. S., Gum, D. H., Jang, C. H., and Lim, G. J. (2012). "Application of SWAT-CUP for streamflow auto-calibration at Soyang-gang Dam watershed." Journal of Korean Society on Water Environment, Vol. 28, No. 3, pp. 347-358.
  27. Schreiber, P. (1904). "Uber die Beziehungen zwischen dem Niederschlag und der. Wasserfuhrung der Flusse in Mitteleuropa." Meteorologische Zeitschrift, Vol. 21, No. 10, pp. 441-452.
  28. Seyoum, W. M., Milewski, A. M., and Durham, M. C. (2015). "Understanding the relative impacts of natural processes and human activities on the hydrology of the Central Rift Valley lakes, East Africa." Hydrological processes, Vol. 29, No. 19, pp. 4312-4324. https://doi.org/10.1002/hyp.10490
  29. Shao, Q., Traylen, A., and Zhang, L. (2012). "Nonparametric method for estimating the effects of climatic and catchment characteristics on mean annual evapotranspiration." Water Resources Research, Vol. 48, No. 3, WR009610.
  30. Shehadeh, N., and Ananbeh, S. (2013). "The impact of climate change upon winter rainfall." American Journal of Environmental Sciences. Vol. 9, pp. 73-81. https://doi.org/10.3844/ajessp.2013.73.81
  31. Wang, G., Xia, J., and Chen, J. (2009). "Quantification of effects of climate variations and human activities on runoff by a monthly water balance model: A case study of the Chaobai River basin in northern China." Water Resources Research, Vol. 45, No. 7, WR006768.
  32. Yang, J., Reichert, P., Abbaspour, K. C., Xia, J., and Yang, H. (2008). "Comparing uncertainty analysis techniques for a SWAT application to the Chaohe Basin in China." Journal of Hydrology, Vol. 358, No. 1-2, pp. 1-23. https://doi.org/10.1016/j.jhydrol.2008.05.012
  33. Zhang, L., Dawes, W. R., and Walker, G. R. (2001). "Response of mean annual evapotranspiration to vegetation changes at catchment scale." Water Resources Research, Vol. 37, No. 3, pp. 701-708. https://doi.org/10.1029/2000WR900325
  34. Zhang, L., Hickel, K., Dawes, W. R., Chiew, F. H. S., Western, A. W., and Briggs, P. R. (2004). "A rational function approach for estimating mean annual evapotranspiration." Water Resources Research, Vol. 40, No. 2, WR002710.
  35. Zhang, S., and Lu, X. X. (2009). "Hydrological responses to precipitation variation and diverse human activities in a mountainous tributary of the lower Xijiang, China." Catena, Vol. 77, No. 2, pp. 130-142. https://doi.org/10.1016/j.catena.2008.09.001
  36. Zhang, X., Zhang, L., Zhao, J., Rustomji, P., and Hairsine, P. (2008). "Responses of streamflow to changes in climate and land use/ cover in the Loess Plateau, China." Water Resources Research, Vol.44, No. 8, WR006711
  37. Zheng H., Zhang, L., Zhu, R., Liu, C., Sato, Y., and Fukushima Y. (2009). "Responses of streamflow to climate and land surface change in the headwaters of Yellow River Basin." Water Rescources Research, Vol. 45, No. 7, WR006665.