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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14927
Title: Hybrid model for derivation of synthetic unit hydrograph
Authors: Bhunya P.K.
Ghosh N.C.
Mishra, Surendra Kumar
Ojha, C. S. P.
Berndtsson R.
Published in: Journal of Hydrologic Engineering
Abstract: Splitting the Nash single linear reservoir into two serially connected reservoirs of unequal storage coefficients (one hybrid unit) for a physically realistic response, a hybrid model is introduced for derivation of a synthetic unit hydrograph. Empirical relations are given for estimation of the two storage coefficients from known peak flow (qp) and time to peak (tp). The hybrid model with two serially connected units is found to work significantly better than the most widely used methods such as those of Snyder, the Soil Conservation Service (SCS), and the two-parameter gamma distribution when tested on synthetically generated data and the data from four catchments from India and one from Turkey. The workability of the proposed approach was also tested for partial and no data availability situations. Journal of Hydrologic Engineering © ASCE.
Citation: Journal of Hydrologic Engineering (2005), 10(6): 458-467
URI: https://doi.org/10.1061/(ASCE)1084-0699(2005)10:6(458)
http://repository.iitr.ac.in/handle/123456789/14927
Issue Date: 2005
Keywords: Catchments
Hybrid methods
Hydrographs
Reservoirs
Water storage
ISSN: 10840699
Author Scopus IDs: 8268278000
55419275700
55463271000
7004206177
7005388716
Author Affiliations: Bhunya, P.K., National Institute of Hydrology, Roorkee, Uttaranchal 247 667, India
Ghosh, N.C., National Institute of Hydrology, Roorkee, Uttaranchal 247 667, India
Mishra, S.K., Indian Institute of Technology, Roorkee, Uttaranchal 247 667, India
Ojha, C.S.P., Indian Institute of Technology, Roorkee, Uttaranchal 247 667, India
Berndtsson, R., Dept. of Water Resources Engineering, Lund Univ., Lund, Sweden
Corresponding Author: Bhunya, P.K.; National Institute of Hydrology, Roorkee, Uttaranchal 247 667, India
Appears in Collections:Journal Publications [CE]
Journal Publications [WR]

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