Synthesis of flow series of tributaries in Upper Betwa basin

In this study, HYMOS 4.0 software has been used to synthesize monthly flow series for thirteen years in each of the twelve tributary sub-catchments of the Betwa basin up to Rajghat. The HYMOS 4.0 software uses Sacramento model to synthesize discharge data. Monthly rainfall data for 14 stations from 1980 to 1992; ten daily discharge data for 2 stations (Basoda and Rajghat) from 1980 to 1992 and daily evaporation data for 1 station (Sagar) from 1980 to 1992 has been used as input in the Sacramento Model. The Coefficient of determination and Nash-Sutcliffe Efficiency between observed flow at the Basoda and sum of six tributaries synthesized discharge were found to be 0.862 and 0.837respectively. Similarly, The Coefficient of determination and Nash-Sutcliffe Efficiency between observed flow at the Rajghat and sum of twelve tributaries synthesized discharge were 0.841 and 0.839 respectively. The difference between observed and synthetic discharge of Bina basin varies from 1.79% to 11.62%. High values of Coefficient of determination and Nash-Sutcliffe efficiency indicate that model can be successfully used for flow simulation in the Betwa basin.