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http://dx.doi.org/10.3741/JKWRA.2013.46.1.47

Development of a New Flood Index for Local Flood Severity Predictions  

Jo, Deok Jun (Department of Architecture & Civil Engineering, Dongseo University)
Son, In Ook (Department of Civil Engineering, Yeungnam University)
Choi, Hyun Il (Department of Civil Engineering, Yeungnam University)
Publication Information
Journal of Korea Water Resources Association / v.46, no.1, 2013 , pp. 47-58 More about this Journal
Abstract
Recently, an increase in the occurrence of sudden local flooding of great volume and short duration due to global climate changes has occasioned the significant danger and loss of life and property in Korea as well as most parts of the world. Such a local flood that usually occurs as the result of intense rainfall over small regions rises quite quickly with little or no advance warning time to prevent flood damage. To prevent the local flood damage, it is important to quickly predict the flood severity for flood events exceeding a threshold discharge that may cause the flood damage for inland areas. The aim of this study is to develop the NFI (New Flood Index) measuring the severity of floods in small ungauged catchments for use in local flood predictions by the regression analysis between the NFI and rainfall patterns. Flood runoff hydrographs are generated from a rainfall-runoff model using the annual maximum rainfall series of long-term observations for the two study catchments. The flood events above a threshold assumed as the 2-year return period discharge are targeted to estimate the NFI obtained by the geometric mean of the three relative severity factors, such as the flood magnitude ratio, the rising curve gradient, and the flooding duration time. The regression results show that the 3-hour maximum rainfall depths have the highest relationships with the NFI. It is expected that the best-fit regression equation between the NFI and rainfall characteristics can provide the basic database of the preliminary information for predicting the local flood severity in small ungauged catchments.
Keywords
flood index; flood severity; threshold discharge; regression analysis; ungauged catchment;
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Times Cited By KSCI : 5  (Citation Analysis)
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1 Bae, D.H., and Kim, J.H. (2007). "Development of Korea flash flood guidance system: (II) Component development and system analysis." Journal of Korean Society of Civil Engineers, KSCE, Vol. 27, No. 3B, pp. 245- 254.
2 Bhaskar, N.R., French, B.M., and Kyiamah, G.K. (2000). "Characterization of flash floods in Eastern Kentucky." Journal of Hydrologic Engineering, ASCE, Vol. 5, No. 3, pp. 327-331.   DOI   ScienceOn
3 Carpenter, T.M., Sperfslage, J.A., Georgakakos, K.P., Sweeney, T.L., and Fread, D.L. (1999). "National threshold runoff estimation utilizing GIS in support of operational flash flood warning systems." Journal of Hydrology, Vol. 224, pp. 21-44.   DOI   ScienceOn
4 Carpenter, T.M., and Georgakakos, K.P. (1993). "GIS-based procedures in support of flash flood guidance." Iowa Institute of Hydraulic Research Report, No. 366, Iowa City, IA, USA.
5 Choi, H., and Lee, S.J. (2006). "Verification about threshold discharge computation using GIUH on ungauged small basin." Journal of the Korean Association of Geographic Information Studies, Vol. 14, No. 1, pp. 15-27.
6 Dury, G.H. (1961). "Bankfull discharge: an example of its statistical relationships." International Association of Scientific Hydrology Bulletin, Vol. 6, No. 3, pp. 48-55.   DOI
7 Gyeonsangbuk Province. (2004). "The basic plan report for the Chil-seong River maintenance works."
8 Gyeonsangbuk Province. (2009). "The basic plan report for the Oc-gok River maintenance works."
9 Henderson, F.M. (1961). "Stability of alluvial channels." Journal of Hydraulics Division-ASCE, Vol. 87, pp. 109-138.
10 Hey, R.D. (1994). "Restoration of gravel-bed rivers: Principles and practice." Natural Channel Design: Perspectives and Practice, Canadian Water Resources Association, Cambridge, Ont., pp. 157-173.
11 Im, C.S., Lee, J.H., Kim, T.H., Lee, J.C., and Yoon, S.E. (2006). "A dominant discharge estimate for channel characteristics quantity survey." Proceedings 2006 Annual Conference, KWRA, pp. 66-71.
12 Jung, J.C. (2000). "The study on estimation of the flash flood index for the Bo-chunRiverbasin." MS. Thesis, Suwon University, Korea.
13 Kim, B.S., and Kim, H.S., (2008). "Estimation of the Flash Flood Severity using Runoff Hydrograph and Flash Flood Index." Journal of the Korean Water Resources Association, Vol. 41, No. 2, pp. 185-196.   과학기술학회마을   DOI   ScienceOn
14 Kim, B.S., Hong, J.B., Kim, H.S., and Yoon, S.Y. (2007). "Development of flash flood model using digital terrain analysis model and rainfall RADAR: I. Methodology and model development." Journal of Korean Society of Civil Engineers, KSCE, Vol. 27, No. 2B, pp. 151-159.
15 Kim, E.S., Choi, H.I., and Jee, H.K. (2010). "Estimation of the flash flood index by the probable rainfall data for ungauged catchments." Journal of the Korean Society ofHazard Mitigation, Vol. 10, No. 4, pp. 81-88.
16 Kim, E.S., Choi, H.I., Lee, D.E., and Kang, D.J. (2009). "Estimation of the flash flood severity using flash flood index." Journal of the Korean Society of Hazard Mitigation, Vol. 9, No. 6, pp. 125-131.
17 Kim, E.S., Jang, H.Y., Kim, S.D., Park, M.S., and Choi, H.I. (2012). "Analysis of rainfall-flood severity relations in small ungauged catchments." Journal of the Korean Society of Hazard Mitigation, Vol. 12, No. 2, pp. 199-208.   DOI   ScienceOn
18 Kim, W.T., Bae, D.H., and Cho, C.H. (2002). "Threshold runoff computation for flash flood forecast on small catchment scale." Journal of the Korean Water Resources Association, Vol. 35, No. 5, pp. 553-561.   DOI   ScienceOn
19 Kim, W.T., Kim, J.H., and Bae, D.H. (2000). "Assesment on hydrologic threshold runoff." Proceedings 2000 Annual Conference, KWRA, pp. 739-742.
20 Lee, H.C., and Lee, E.T. (2003). "A study on the channel forming discharge estimation and the hydraulic geometry characteristics of the alluvial stream." Journal of the Korean Water Resources Association, Vol. 36, No. 5, pp. 823-838.   DOI   ScienceOn
21 Leopold, L.B. (1994). A view of the river. Harvard University Press, Cambridge, MA, USA.
22 NDMI (National Disaster Management Institute). (1998). "Investigation on damage from heavy rains around Jiri Mountain." NDIP-98-01.
23 NEMA(National Emergency Management Agency). (2007). Annual report on disasters.
24 NEMA(National Emergency Management Agency). (2010). Annual report on disasters.
25 Riley, A.L. (1998). Restoring streams in cities : a guide for planners, policy makers and citizens. Island press, Wachington, D.C., USA.
26 Sweeney, T.L. (1992). Modernized Areal Flash Flood Guidance. National Oceanic and Atmospheric Administration Technical Report, National Weather Service, HYDRO 44. USA.
27 USACE(2000). HydrographModeling System. Technical Reference Manual. Hydrologic Engineering Center, Davis, CA, USA.
28 Wi, S.W., Chung, G.H., and Kim, T.W. (2008). "Development of a comprehensive flood index through standardizing distributions of runoff characteristics." Journal of the Korean Water Resources Association, Vol. 41, No. 6, pp. 605-617.   DOI   ScienceOn
29 Williams, G.P. (1978). "Bankfull discharge of rivers." Water Resources Research, Vol. 14, No. 6, pp. 1141-1154.   DOI   ScienceOn