Study of modifications of the river physical specifications on muskingum coefficients, through employment of genetic algorithm

Sofar much research has been done of flood routing through Muskingum linear and non-linear model and genetic algorithm. Study of changed specifications of river such as waterway slope, width and length of the river, and the river bed which lead to determination of its roughness coefficient, and their impacts of flood hydrograph and finally on nonlinear model coefficients, are importance. In this research, effect of modifications of width and length of the ricer on coefficients of the Muskingum nonlinear model employing the genetic algorithm has been investigated. Obtained results, indicates the presence of a logical relation between fluctuations of the river specifications and coefficients of this model that through increase of data, there will be a possibility of finding a mathematical relations for expressing such modifications as well.