HYDROLOGICAL MODELING WITH HEC-HMS FOR WAN RESERVOIR CATCHMENT

S.P. SHINDE¹*, S.M. TALEY², M.U. KALE^3
1Department of Soil & Water Conservation Engineering, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Krishi Nagar, Akola, 444104, Maharashtra, India
²Department of Irrigation & Drainage Engineering, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Krishi Nagar, Akola, 444104, Maharashtra, India
³Department of Irrigation & Drainage Engineering, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Krishi Nagar, Akola, 444104, Maharashtra, India
* Corresponding Author : sachinshinde04121992@gmail.com

Received : 19-06-2016     Accepted : 04-08-2016     Published : 27-10-2016
Volume : 8     Issue : 51       Pages : 2263 - 2266
Int J Agr Sci 8.51 (2016):2263-2266

Keywords : DEM, HEC-GeoHMS, HEC-HMS, Hydrologic Modeling, Wan reservoir
Academic Editor : Dr Chaitanay Pande
Conflict of Interest : None declared
Acknowledgements/Funding : None declared
Author Contribution : None declared

Hydrological modelling is a mostly used appliance to estimate the basin’s hydrological response to precipitation. HEC-HMS model is used to simulate rainfall-runoff modelling for catchment of Wan reservoir, Akola, Maharashtra. To compute runoff, Peak runoff rate, base flow and flow routing methods SCS curve number, Clark unit hydrograph, Recession and Muskingum-Cunge routing methods were chosen, respectively. Rainfall runoff simulation is conducted using 33 rainfall event data. Out of these, 12 events were selected for model calibration, 09 for model validation and remaining 12 for prediction. To judge the performance of model, statistical tests of error functions like Root mean square error (RMSE), Nash Sutcliffe coefficient ( ) and coefficient of residual mass (CRM) were selected. Curve number (CN), Initial abstraction (Ia), Time of concentration (Tc), Initial base flow (Qo), Recession constant (Rc), and Threshold flow (Qt) were the model parameters which were fixed as 61.47, 32.20, 10.50, 5.07, 6.38, 1.0 and 0.25, respectively, for catchment of Wan reservoir. The model performed well in terms of RMSE, , CRM (1.40 mm day-1, 0.89 and - 0.11). Considering the performance of model in simulating the runoff, it is suggested that the calibrated HEC-HMS model could be used to predict runoff for the rainfall events over catchment of Wan reservoir.