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Hybrid model for derivation of synthetic unit hydrograph

Bhunya, PK; Ghosh, NC; Mishra, SK; Ojha, CSP and Berndtsson, Ronny LU (2005) In Journal of Hydrologic Engineering 10(6). p.458-467
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 (q(p)) and time to peak (t(p)). 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... (More)
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 (q(p)) and time to peak (t(p)). 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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Hydrologic Engineering
volume
10
issue
6
pages
458 - 467
publisher
American Society of Civil Engineers (ASCE)
external identifiers
  • wos:000232757100003
  • scopus:27544481825
ISSN
1084-0699
DOI
10.1061/)ASCE)1084-0699(2005)10-6(458)
language
English
LU publication?
yes
id
35c8f002-92dd-44ec-a912-6e0ba41c96cf (old id 218753)
date added to LUP
2007-08-14 11:53:12
date last changed
2017-01-01 07:10:22
@article{35c8f002-92dd-44ec-a912-6e0ba41c96cf,
  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 (q(p)) and time to peak (t(p)). 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.},
  author       = {Bhunya, PK and Ghosh, NC and Mishra, SK and Ojha, CSP and Berndtsson, Ronny},
  issn         = {1084-0699},
  language     = {eng},
  number       = {6},
  pages        = {458--467},
  publisher    = {American Society of Civil Engineers (ASCE)},
  series       = {Journal of Hydrologic Engineering},
  title        = {Hybrid model for derivation of synthetic unit hydrograph},
  url          = {http://dx.doi.org/10.1061/)ASCE)1084-0699(2005)10-6(458)},
  volume       = {10},
  year         = {2005},
}