Advanced SearchSearch Tips
An analysis on geomorphic and hydraulic characteristics of dominant discharge in nam river
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
An analysis on geomorphic and hydraulic characteristics of dominant discharge in nam river
Kim, Ki Heung; Lee, Hyeong-Rae; Jung, Hea Reyn;
  PDF(new window)
Geomorphological, bed material and hydraulic characteristics are basis informations for the planning, design and management of the river in the aspect of flood control and environmental conservation, and it is very important to use these informations for the design of stable channel. In this study, dominant discharge was selected, geomorphological and hydraulic characteristics were analyzed using that discharge and also the characteristics of bed materials distribution were analyzed and bed materials-flow resistance relationship was evaluated, for the upstream section of Namgang dam. The dominant discharge was estimated a return period of approximately 1.5 year and stream type were classified Segment 1 and Segment 2 in this stream. Also, the frequency of riffle-pool showed 4.4 because this study area has the characteristics of natural channel that have not channel-crossing structures. In dominant discharge, according to the results that analyzed relationship between and to calculate flow resistance by bed materials, Julian's formula showed to appropriate in channel where is relatively close to natural river and is predominantly consisted of gravel, cobble, boulder and rock in mountain, and it was confirmed that the image processing methodology will be easily applied to the analysis of bed materials distribution in future.
Natural river;Bed materials;Bed slope;Channel width;Frictional force;
 Cited by
Barbour, M.T., Gerritsen, J., Snyder, B.D., and Stribling, J.B. (1999). Rapid bioassessment protocols for use in streams and wadeable rivers : Periphyton, Benthic Macroinvertebrates and Fish. Second Edition. EPA 841-B-99-002. USEPA Office of Water, Washington, D.C., pp. 5-23-5-24

Butler, J., Lane, S.N., and Chandler J.H. (2001), "Automated extraction of grain-size data from gravel surfaces using digital image processing." J. of Hydraulics Research, Vol. 39, No. 4, pp. 1-11.

Chang, H.H. (1979). "Minimum stream power and river channel patterns." J. of Hydrology., Vol. 41, Issues 3-4, pp. 303-327. crossref(new window)

Choi, J.W., and An, K.G. (2013). "Ecological health assessments on stream order in southern Han River watershed and physical habitat assessments." Korean J. Environ. Biol., Vol. 31, No. 4, pp. 440-447 (in Korean). crossref(new window)

Davis, W.M. (1899). "The geographical cycle." The Geographical Journal, Vol. 14, pp. 481-504. crossref(new window)

Ferguson, R.I. (1987). Hydraulic and sedimentary controls of channel pattern. In, K.S. Richardson (ed.), River Channels. Blackwell, London, UK., pp. 129-158.

Janaka, G. H. A., Kumara, J., Kimitoshi, H. and Keita, O. (2012), "Image Analysis Techniques on Evaluation of Particle Size Distribution of Gravel.", Int. J. of GEOMATE, Vol. 3, No. 1, 5), pp. 290-297.

Ji, Un. Kang, J.G., Yeo, W.K., and Han, S.W. (2009), "Evaluation of Channel-forming Discharge for the Abandoned Channel Restoration Design of Cheongmi Stream." J. of Korean Water Resources Association, Vol. 42, No. 12, pp. 1113-1124 (in Korean). crossref(new window)

Julien, P.Y. (2002). River Mechanics, Cambridge University Press, Cambridge, UK.

Kim, K.H. (2010). "Analysis of correlation on physical characteristics and bed materials in natural rivers." J. of the Korean Society of Environmental Restoration and Revegetation Technology, Vol. 13, No. 2, pp. 95-104.

Knight, D. (1998), Fluvial forms and processes : A New Perspective, Arnold, pp. 10-20.

Lane, E.W. (1957). "A study of the shape of channels formed by natural streams flowing in erodible materials." Missouri River Division Sediment Series No.9, U.S. Army Engineer Division, Missouri River, Corps of Engineers, Omaha, Nebraska, USA, pp. 13-38.

Lee, C.J., Lee, D.H., Kim, K.H., and Woo, H.S. (2004). "Examination into the applicability of the river classification system based on the geomorphological criteria." J. of Korean Water Resources Association, Vol. 37, No. 1, pp. 1-11 (in Korean). crossref(new window)

Lee, H.C., and Lee, E.T. (2003), "A study on channel forming discharge estimation and the hydraulic geometry characteristics of the alluvial stream." J. of Korean Water Resources Association, Vol. 36, No. 5, pp. 823-838 (in Korean). crossref(new window)

Leopold, L.B., and Wolman, M.G. (1957). "River channel patterns: braiding, meandering and straight." U.S. Geological Survey Professional Papers 282b, pp. 39-85.

Leopold, L.B., Wolman, M.G., and Miler, J.P. (1964). Fluvial process in geomorphology. W.H. Freeman and Company, San Francisco, USA. pp. 39-85.

Mackin, J.H. (1948). "Concept of the graded river." Geological Society of America Bull. 59, pp. 463-514. crossref(new window)

Montgomery, D.R., and Buffington, J.M. (1993). Channel classification, prediction of channel response, and assessment of channel condition. Washington State Department of Natural Resources-Timber, Fish and Wildlife. Olympia, WA, USA, pp. 3-63.

Peregrina-Barreto, H., Terol-Villalobos, I.R., Rangel-Magdaleno, J.J., Herrera-Navarro, A.M., Morales- Hernandez, L.A., and Manriquez-Guerrero, F. (2013), "Automatic grain size determination in micro- structures using image processing." Measurement, Vo1. 46, Issue 1, pp. 249-258. crossref(new window)

Rim, C.S., and Lee, J.H. (2011) "A study on the dominant discharge in small and medium-sized stream (Yo-Stream)", CNU Journal of Agricultural Science, Vol. 38, No. 2, pp 309-314.

Rim, C.S., Lee, J.H., Jung, J.W., and Yoon, S.E. (2008). "Classification of streams and application of channel evolution model in Korea." KSCE J. of Civil Engineering. Vol. 28, No. 6B, pp. 615-625 (in Korean).

Rosgen, D.L. (1994). A classification of natural rivers. Catena 22, pp. 169-199. crossref(new window)

Willams, G. P. (1978). "Bank-full discharge of rivers." Water Resources Research, Vol. 14, No. 6, pp. 1141-1154. crossref(new window)

Yamamoto, K. (1988). Channel specific analysis. Public Works Research Institute Report 2662, pp. 56-64 (in Japanese).

Yamamoto, K. (2004). Structural fluviology. Sankaidou, Tokyo, pp. 126-137 (in Japanese).