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http://dx.doi.org/10.3741/JKWRA.2015.48.6.439

A Comparison Study of Runoff Projections for Yongdam Dam Watershed Using SWAT  

Jung, Cha Mi (Department of Civil and Environmental Engineering, Seoul National University)
Shin, Mun-Ju (Institute of Health & Environment, Seoul National University)
Kim, Young-Oh (Department of Civil and Environmental Engineering, Seoul National University)
Publication Information
Journal of Korea Water Resources Association / v.48, no.6, 2015 , pp. 439-449 More about this Journal
Abstract
In this study, reliable future runoff projections based on RCPs for Yongdam dam watershed was performed using SWAT model, which was validated by k-fold cross validation method, and investigated the factors that cause the differences with respect to runoff projections between this study and previous studies. As a result, annual average runoff compared to baseline runoff would increase 17.7% and 26.1% in 2040s and 2080s respectively under RCP8.5 scenario, and 21.9% and 44.6% in 2040s and 2080s respectively under RCP4.5 scenario. Comparing the results to previous studies, minimum and maximum differences between runoff projections over different studies were 10.3% and 53.2%, even though runoff was projected by the same rainfall-runoff model. SWAT model has 27 parameters and physically based complex structure, so it tends to make different results by the model users' setting. In the future, it is necessary to reduce the cause of difference to generate standard runoff scenarios.
Keywords
climate change; runoff projection; rainfall-runoff model; SWAT; Yongdam dam watershed;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 Ahn, J.H., Yoo, C.S., and Yoon, Y.N. (2001). "An Analysis of Hydrologic Changes in Daechung Dam Basin Using GCM Simulation Results due to Global Warming." Journal of Korea Water Resources Association, KWRA, Vol. 34, No. 4, pp. 335-345.
2 Arnold, J.G., Srinivasan, R., Muttiah, R.S., and Williams, J.R. (1998). "Large Area Hydrologic Modeling and Assessment Part I: Model Development1." Journal of the American Water Resources Association, Vol. 34, No. 1, pp. 73-89.   DOI
3 Chiew, F.H.S., Teng, J., Vaze, J., Post, D.A., Perraud, J.M., Kirono, D.G.C., and Viney, N.R. (2009). "Estimating Climate Change Impact on Runoff Across Southeast Australia: Method, Results, and Implications of the Modeling Method." Water Resources Research, Vol. 45, No. 10.
4 Kang, D.H. (2007). An Impact Assessment of Climate Change on Water Resources for the Geum River Basin. M.S. dissertation, Seoul National University, Seoul, Korea.
5 Ministry of Science and Technology. (2004). Sustainable Water Resources Research Program: Analysis and Modeling for Surface Water Hydrological Components: 21st Century Frontier R&D Program.
6 Ministry of Science and Technology. (2007). The 21st Century Frontier R&D Program; Sustainable WaterResources Research Program;Technology for ClimateChange Impact Assessment on Water Resources.
7 Ministry of Environment. (2006). Settlement of Global and International Environmental Issue: Prediction and Impact Assessment ofWater Cycle with Climate Change.
8 Ministry of Education and Science Technology. (2010). Development of Climate Change Impact Analysis and Evaluation System on Korean Water Resources.
9 Minstry of Land, Infrastructure, and Transport. (2013). Climate Change Assessment and Projection for Hydrology in Korea.
10 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, KWRA, Vol. 46, No. 5, pp. 505-517.   DOI
11 Park, J.H., Kwon, H.H., and No, S.-H. (2011). "Outlook of Discharge for Daecheong and Yongdam Dam Watershed Using A1B Climate Change Scenario Based RCM and SWAT Model." Journal of Korea Water Resources Association, KWRA, Vol. 44, No. 12, pp. 929-940.   DOI   ScienceOn
12 Park, J.-Y., Jung, H., Jang, C.-H., and Kim, S.J. (2014). "Assessing Climate Change Impact on Hydrological Components of Yongdam Dam Watershed Using RCP Emission Scenarios and SWAT Model." Journal of the Korean Society of Agricultural Engineers, Vol. 56, No. 3, pp. 19-29.   DOI
13 Shin, M.-J., Guillaume, J.H., Croke, B.F., and Jakeman, A.J. (2013). "Addressing Ten Questions about Conceptual Rainfall-runoff Models with Global Sensitivity Analyses in R." Journal of Hydrology, Vol. 503, pp. 135-152.   DOI
14 WAMIS. (http://www.wamis.go.kr)
15 Shin, M.-J., Guillaume, J.H., Croke, B.F., and Jakeman, A.J. (2015). "A Review of Foundational Methods for Checking the Structural Identifiability of Models: Results for Rainfall-runoff." Journal of Hydrology, Vol. 520, pp. 1-16.
16 Vaze, J., Post, D.A., Chiew, F.H.S., Perraud, J.M., Viney, N.R., and Teng, J. (2010). "Climate Non-Stationarity-Validity of Calibrated Rainfall-Runoff Models for use in Climate Change Studies." Journal of Hydrology, Vol. 394, No. 3, pp. 447-457.   DOI