Prediction of Runoff in Ungauged Basin Using CWC Method

Drainage basins in the most parts of world are either partly gauged or fully ungauged. Prediction in ungauged basins is a serious challenge in hydrologic sciences, and there is still abundant work needed to appreciate sturdy and reliable predictions for such basins. Errors in the prediction of hydrological parameters are seen because of inaccessibility of sufficient discharge information. Geomorphologic instant unit hydrograph (GIUH) method will be used as a transfer function for modelling the rainfall – runoff development. The current study delivers an effective approach which deals with the geomorphologic structures of the ungauged drainage basin and derives the GIUH based transfer function and consequently geomorphologic unit hydrograph (GUH) for the study area. For this research work Sub-basin of Kundalika River has been taken as the study area. To validate the derived GUH of the Kundalika River basin, a comparison was executed with the synthetic unit hydrograph (SUH) attained using the Central Water Commission (CWC) procedure. After modeling we developed the unit hydrograph of basin and we predict the discharge of basin.