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http://dx.doi.org/10.5389/KSAE.2020.62.1.017

Assessment of Flood Probability Based on Temporal Distribution of Forecasted-Rainfall in Cheongmicheon Watershed  

Lee, Hyunji (Department of Rural Systems Engineering, Seoul National University)
Jun, Sang Min (Department of Rural Systems Engineering, Seoul National University)
Hwang, Soon Ho (Department of Rural Systems Engineering, Seoul National University)
Choi, Soon-Kun (Climate Change and Agroecology Division, National Institute of Agricultural Sciences)
Park, Jihoon (Climate Services and Research Department, APEC Climate Center)
Kang, Moon Seong (Department of Rural Systems Engineering, Research Institute of Agriculture and Life Sciences, Institute of Green Bio Science and Technology, Seoul National University)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.62, no.1, 2020 , pp. 17-27 More about this Journal
Abstract
The objective of this study was to assess the flood probability based on temporal distribution of forecasted-rainfall in Cheongmicheon watershed. In this study, 6-hr rainfalls were disaggregated into hourly rainfall using the Multiplicative Random Cascade (MRC) model, which is a stochastic rainfall time disaggregation model and it was repeated 100 times to make 100 rainfalls for each storm event. The watershed runoff was estimated using the Clark unit hydrograph method with disaggregated rainfall and watershed characteristics. Using the peak discharges of the simulated hydrographs, the probability distribution was determined and parameters were estimated. Using the parameters, the probability density function is shown and the flood probability is calculated by comparing with the design flood of Cheongmicheon watershed. The flood probability results differed for various values of rainfall and rainfall duration. In addition, the flood probability calculated in this study was compared with the actual flood damage in Cheongmicheon watershed (R2 = 0.7). Further, this study results could be used for flood forecasting.
Keywords
Flood; clark unit hydrograph method; forested-rainfall; MRC;
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Times Cited By KSCI : 6  (Citation Analysis)
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1 Gupta, V. J., and E. C. Waymire, 1993. A statistical analysis of mesoscale rainfall as a random cascade. Journal of Applied Meteorology 32(2): 251-267. doi:10.1175/1520-0450(1993)032<0251:ASAOMR>2.0.CO;2.   DOI
2 Han, M. S., C. S. Kim, H. S. Kim, and H. Kim, 2009. A study on the revised methods of missing rainfall data for real-time forecasting system. Journal of Korea Water Resources Association 42(2): 131-139 (in Korean). doi: 10.3741/JKWRA.2009.42.2.131.   DOI
3 Kim, D., S. Yoon, M. S. Kang, and K. Lee, 2016. Applicability of a multiplicative random cascade model for disaggregation of forecasted rainfalls. Journal of the Korean Society of Agricultural Engineers 58(5): 91-99 (in Korean). doi:10.5389/KSAE.2016.58.5.091.   DOI
4 Lee, S. J., C. S. Jeong, J. C. Kim, and M. H. Hwang, 2011. Lon-term streamflow prediction using ESP and RDAPS model. Journal of Korea Water Resources Association 44(12): 967-974 (in Korean). doi:10.3741/JKWRA.2011.44.12.967.   DOI
5 Linznar, P., J. Lomotowski, and D. E. Rupp, 2011. Random cascade driven rainfall disaggregation for urban hydrology: An evaluation of six models and a new generator. Atmospheric Research 99: 563-578. doi:10.1016/j.atmosres.2010.12.014.   DOI
6 Mandelbrot, B., 1974. Intermittent turbulence in self-similar cascades-divergence of high moments and dimension of carrier. Journal of Fluid Mechanics 62(2): 331-358. doi: 10.1017/S0022112074000711.   DOI
7 Muller, H., and U. Haberlandt, 2016. Temporal rainfall disaggregation using a multiplicative cascade model for spatial application in urban hydrology. Journal of Hydrology 556: 847-864. doi:10.1016/j.jhydrol.2016.01.031.   DOI
8 Ministry of Land, Infrastructure, and Transport (MOLIT), 2011. Cheongmi stream river master plan report (in Korean).
9 Ministry of Land, Transport and Maritime Affairs (MLTM), 2009. Hydrological annual report in Korea (in Korean).
10 Muller, H., and U. Haberlandt, 2015. Temporal rainfall disaggregation with a cascade model: From single-station disaggregation to spatial rainfall. Journal of Hydrologic Engineering 20(11): 04015026. doi:10.1061/(ASCE)HE.1943-5584.0001195.   DOI
11 Yang, Y. S., Y. S. Suh, and J. O. Lee, 1999. Structural reliability engineering. Seoul: Seoul National University Press (in Korean).
12 Yoon, Y. N., 2007. Hydrology. Seoul: Cheongmoongak (in Korean).
13 Kim, J. H., W. J. Yoon, and D. H. Bae, 2005. Real-time application of streamflow forecast using precipitation forecast. Journal of Korea Water Resources Association 38(1): 11-23 (in Korean). doi:10.3741/JKWRA.2005.38.1.011.   DOI
14 Ichikawa, M., 1993. A meaning of the overlapped area under probability density curves of stress and strength. Reliability Engineering and System Safety 41: 203-204. doi:10.1016/0951-8320(93)90033-U.   DOI
15 Intergovernmental Panel on Climate Change (IPCC), 2013. Summary for policymakers. In: Climate change 2013: The physical science basis. Contribution of working group I to the fifth assessment report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.
16 Intergovernmental Panel on Climate Change (IPCC), 2014. Summary for policymakers. In: Climate change 2014: Impacts, adaptation, and vulnerability. Part A: Global and Sectoral Aspects. Contribution of working group II to the fifth assessment report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.
17 Jun, S. M., M. S. Kang, I. Song, S. H. Hwang, K. Kim, and J. Park, 2013. Effect of agricultural reservoir rehabilitation on their flood control capacities. Journal of the Korean Society of Agricultural Engineers 55(6): 57-68 (in Korean). doi:10.5389/KSAE.2013.55.6.057.   DOI
18 Kang, B., and S. Moon, 2010. Realtime streamflow prediction using quantitative precipitation model output. Journal of Korean Society of Civil Engineers 30(6B): 579-587 (in Korean).