Storage Coefficient of Merged Subbasins
Publication: Journal of Hydrologic Engineering
Volume 22, Issue 8
Abstract
This study investigates the effect of the merging of subbasins on the storage coefficient of the entire basin with the concept of parallel and serial systems of linear reservoirs having different storage coefficients. Based on the linear reservoir theory, both the parallel and serial connections of two subbasins are analyzed and the storage coefficient is derived from the impulse response function of the merged subbasins. The storage coefficient of the entire basin could also be derived by merging subbasins one by one from upstream to downstream. The applicability of the proposed methodology is tested considering the subbasin arrangement of the Chungju Dam Basin in Korea. The findings are as follows: (1) the storage coefficient of a basin with parallel subbasins is represented as the weighted average by the subbasin areas, and that of a basin with serial subbasins is represented simply by the sum of storage coefficients; and (2) the storage coefficient of the Chungju Dam Basin is estimated to be approximately 30.53 h by considering the structure of 44 subbasins, i.e., the combination of parallel and serial subbasins.
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Acknowledgments
This research was supported by a grant (14AWMP-B082564-01) from the Advanced Water Management Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government.
References
Brutsaert, W. (2005). Hydrology, Cambridge University Press, Cambridge, U.K.
Buytaert, W., De Bievre, B., Wyseure, G., and Deckers, J. (2004). “The use of the linear reservoir concept to quantify the impact of changes in land use on the hydrology of catchments in the Andes.” Hydrol. Earth Syst. Sci. Discuss., 8(1), 108–114.
Casey, M. J., Stagge, J. H., Moglen, G. E., and McCuen, R. H. (2015). “Effects of watershed subdivision on peak discharge in rainfall-runoff modeling in the WinTR-20 model.” J. Hydrol. Eng., .
Chow, V. T., Maidment, D. R, and Mays, L. W. (1988). Applied hydrology, McGraw-Hill, New York.
Clark, C. O. (1943). “Storage and the unit hydrograph.” Proc. Am. Soc. Civ. Eng., 69(9), 1333–1360.
Gupta, V. K., Waymire, E, and Wang, C. T. (1980). “A representation of an instantaneous unit hydrograph from geomorphology.” Water Resour. Res., 16(5), 855–862.
JSCE (Japan Society of Civil Engineers). (1986). “The collection of hydraulic formulae.” Tokyo (in Japanese).
Kalin, L., Govindaraju, R. S., and Hantush, M. M. (2003). “Effect of geomorphologic resolution on modeling of runoff hydrograph and sedimentograph over small watersheds.” J. Hydrol., 276(1–4), 89–111.
Kang, S. K. (2005). “Relationship between storage coefficient and time of concentration for Clark unit hydrograph method.” M.S. dissertation, Korea Univ., Seoul.
Kim, H. Y. (2011). “Examination of runoff characteristics between sub-basin’s and entire basin’s: Focusing on the storage coefficient and concentration time.” M.S. dissertation, Korea Univ., Seoul.
Kim, H. Y., Yoo, C., and Park, C. (2012). “Derivation of storage coefficient and concentration for the inflow hydrograph of lateral inflow.” J. Korea Water Resour. Assoc., 45(3), 243–252.
Lee, J. (2012). “Analysis for basin concentration time and storage coefficient through theoretical characteristic and development of empirical formulas.” Ph.D. dissertation, Korea Univ., Seoul.
Lee, J., Yoo, C., and Sin, J. (2013). “Theoretical background and empirical equations of basin concentration and storage coefficient.” J. Korea Water Resour. Assoc., 46(2), 155–169.
Li, C., Guo, S., Zhang, W., and Zhang, J. (2008). “Use of Nash’s IUH and DEMs to identify the parameters of an unequal-reservoir cascade IUH model.” Hydrol. Process., 22(20), 4073–4082.
Linsey, R. K. (1982). Hydrology for engineers, McGraw-Hill, New York.
Luong, T. (2008). “Subdivision of watersheds for modeling.” M.S. dissertation, Univ. of Houston, Houston.
MLTMA (Ministry of Land, Transport and Maritime Affairs). (2008). “Report of integrated flood management in Han River Basin.” Korea (in Korean).
MOCT (Ministry of Construction and Transportation). (2004). “Survey report of the Han River Basin.” Seoul (in Korean).
MOCT (Ministry of Construction and Transportation). (2007). “Report for guidelines of flood estimation.” Seoul (in Korean).
Nash, J. E. (1957). “The form of the instantaneous unit hydrograph.” Int. Assoc. Hydrol. Sci. Publ., 45(3), 114–121.
Norris, G., and Haan, C. T. (1993). “Impact of subdividing watersheds on estimated hydrographs.” Appl. Eng. Agric., 9(5), 443–445.
Park, M. J., Ha, R., Kim, N. W., Lim, K. J., and Kim, S. J. (2014). “Assessment of future climate and vegetation canopy change impacts on hydrological behavior of Chungju Dam watershed using SWAT model.” KSCE J. Civ. Eng., 18(4), 1185–1196.
Rojas, R., Velleux, M., Julien, P. Y., and Johnson, B. E. (2008). “Grid scale effects on watershed soil erosion models.” J. Hydrol. Eng., 793–802.
Sabol, G. V. (1988). “Clark unit hydrograph and R-parameter estimation.” J. Hydraul. Eng., 103–111.
Sherman, L. K. (1932). “Streamflow from rainfall by the unit graph method.” Eng. News Rec., 108, 501–505.
Tripathi, M. P., Raghuwanshi, N. S., and Rao, G. P. (2006). “Effect of watershed subdivision on simulation of water balance components.” Hydrol. Process., 20(5), 1137–1156.
Valdes, J. B., Fiallo, Y., and Rodriguez-Iturbe, I. (1979). “A rainfall-runoff analysis of the geomorphologic IUH.” Water Resour. Res., 15(6), 1421–1434.
Yoo, C. (2009). “A theoretical review of basin storage coefficient and concentration time using the Nash model.” J. Korea Water Resour. Assoc., 42(3), 235–246.
Yoo, C., Lee, J., Park, C., and Jun, C. (2014). “Method for estimating concentration time and storage coefficient of the Clark model using rainfall-runoff measurements.” J. Hydrol. Eng., 626–634.
Yoo, S. H., Lee, J. G., and Ahn, J. H. (2009). “A study on the change of runoff due to dividing watershed.” Conf. on Proc., Korea Water Resources Association, Korea Water Resources Association, Seoul, 976–980.
Information & Authors
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Published In
Journal of Hydrologic Engineering
Volume 22 • Issue 8 • August 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Jul 22, 2016
Accepted: Jan 19, 2017
Published online: Apr 8, 2017
Published in print: Aug 1, 2017
Discussion open until: Sep 8, 2017
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