A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Alternative for the regionalization of flow duration curves
The objective of the present work is to produce a regionalization model of flow duration curves, proposing the grouping of watersheds as a function of the drainage area without the use of cluster analysis techniques. Curves were fitted with 5 mathematical regression models: power, exponential, logarithmic, quadratic and cubic. The regionalization model was established by multiple regression. The spatial variation of the parameters of models was caused by drainage area, annual mean rainfall, length and head of the main river. The model was validated by the jack-knife procedure and the best fitting of the cubic model was represented by mean squared errors (e%) and Nash-Sutcliffe coefficients (Nash). The results show a good fitting of the cubic model to the observed flow duration curves; and a good simulation of the curves by the regional model tested in the validation, with the exception of a few streamflow gauges.
Alternative for the regionalization of flow duration curves
The objective of the present work is to produce a regionalization model of flow duration curves, proposing the grouping of watersheds as a function of the drainage area without the use of cluster analysis techniques. Curves were fitted with 5 mathematical regression models: power, exponential, logarithmic, quadratic and cubic. The regionalization model was established by multiple regression. The spatial variation of the parameters of models was caused by drainage area, annual mean rainfall, length and head of the main river. The model was validated by the jack-knife procedure and the best fitting of the cubic model was represented by mean squared errors (e%) and Nash-Sutcliffe coefficients (Nash). The results show a good fitting of the cubic model to the observed flow duration curves; and a good simulation of the curves by the regional model tested in the validation, with the exception of a few streamflow gauges.
Alternative for the regionalization of flow duration curves
Silva, Raimunda da Silva e (author) / Blanco, Claudio José Cavalcante (author) / Pessoa, Francisco Carlos Lira (author)
Journal of Applied Water Engineering and Research ; 7 ; 198-206
2019-07-03
9 pages
Article (Journal)
Electronic Resource
English
Regionalization of Flow Duration Curves for West Flowing Rivers of India
| Springer Verlag | 2021
Flow duration curve regionalization with enhanced selection of donor basins
| Taylor & Francis Verlag | 2018
Use of Gene Expression Programming in regionalization of flow duration curve
| British Library Online Contents | 2014