Efficiency Of Geomorphologic Instantaneous Unit Hydrograph And Compare With Snyder, SCS And Triangular Synthetic Unit Hydrograph In Kasilian Watershed.
2006
Ghiasi, N., Member of Scientific Board of Soil Conservation and Watershed Management | Roghani, M., Member of Scientific Board of Soil Conservation and Watershed Management
The usage of geomorphologic parameters for estimating of unit hydrograph are a basic role in hyrological science. Due to lack of observed data in basins. Relationship between hydrology and geomorphologic parameters can lead to estimate hydrologic response of a basin. Dynamics and static parameters such as velocity and rainfall intensity plus bifraction ratio length ratio, area ratio length and slope of the main stream affect on response of basin. To make relation between these two elements can estimate the output hydrograph of a basin. In this research project by this method for representative basin of Kasilian in north Iran hydrograph were estimated and then by other synthetic methods such as Snayder, SCS and triangular SCS were compared. It is mentioned that the giuh by ROSSO method also acquised. After then these methods compared by observed hydrograph, the result was satisfied and they have no significant differences.
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