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Development of Regional Regression Model for Estimating Mean Low Flow in Ungauged Basins
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 Title & Authors
Development of Regional Regression Model for Estimating Mean Low Flow in Ungauged Basins
Lee, Tae Hee; Lee, Min Ho; Yi, Jaeeung;
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The purpose of this study is to develop regional regression models to estimate mean low flow for ungauged basins. The unregulated streamflow data observed at 12 multipurpose dams and 4 irrigation dams were analyzed for determining mean low flows. Various types of regression models were developed using the relationship between mean low flows and various sets of watershed characteristics such as drainage area, average slope, drainage density, mean annual precipitation, runoff curve number. The performance of each regression model for estimating mean low flows was assessed by comparison with the results obtained from the observed data. It was found that a regional regression model explained by drainage area, the mean annual precipitation, and runoff curve number showed the best performance. The regression model presented in this study also gives better estimates of mean low flow than the estimates by the drainage-area ratio method and the previous regression model.
Ungauged basin;Mean low flow;Basin characteristics;Regional regression model;
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Abdulla, A. F. and Lettenmaier, D. P. (1997). "Development of regional parameter estimation equations for macroscale hydrologic model." Journal of Hydrology, ASCE, Vol. 197, pp. 230-257. crossref(new window)

Cho, T. G., Kim, Y. O. and Lee, K. S. (2007). "Improving low flow estimation for ungauged basins in Korea." Journal of the Korea Water Resources Association, Vol. 40, No. 2, pp. 113-124 (in Korean). crossref(new window)

Fennessey, N. and Vogel, R. M. (1990). "Regional flow-duration curves for ungauged sites in massachusetts." Journal Water Resour. Plan. Manag, Vol. 116, No. 4, pp. 530-549. crossref(new window)

K water (2014). Dam Operation Manual (in Korean).

K water (2016). (Accessed: February 4, 2016).

Kim, K. H., Lee, J. W., Hong, I. P. and Woo, H. (1996). "Development of a Method for Determining the Instream Flow and Its Application: I. Estimation Method." Journal of the Korea Water Resources Association, Vol. 29, No. 4, pp. 161-176 (in Korean).

Lee, J. H. and Cho, G. T. (1999). "The development of design low-flow estimation odel at the ungaged mountainous watershed." Journal of the Korean Society of Civil Engineers, Vol. 19, No. 2, pp. 169-181 (in Korean).

Parker, G. W. (1977). Methods for determining selected flow characteristics for streams in Maine., U.S. Geological Survey Open File Report, U.S. Geological Survey.

Ries, K. G. and Friesz, P. J. (2000). Methods for estimating low-flow statistics for Massachusetts streams, Water Resources investigations Report, U.S. Geological Survey, Northborough, Massachusetts.

Smakhtin, V. U. (2001). "Low flow hydrology: A Review." Journal of Hydrology, Vol. 240, pp. 147-186. crossref(new window)

Vogel, R. M. and Kroll, C. N. (1990). "Generalised low-flow frequency relationships for ungauged sites in Massachusetts." Water Resour. Bull, Vol. 26, No. 2, pp. 241-253.

Vogel, R. M. and Kroll, C. N. (1992). "Regional geohydrologicgeomorphic relationals for the estimation of low-flow statistics." Water Resources Research, Vol. 28, No. 9, pp. 2451-2458. crossref(new window)

WAter Management Information System (2016). (Accessed: February 4, 2016).

World Meteorological Organization (1974). International Glossary of Hydrology.

Yang, H. K., Choi, H. C. and Kim, J. H. (2005). "River discharge estimation by specific discharge measurement." Journal of the Korean Geographical Society, Vol. 40, No. 3, pp. 274-284 (in Korean).