Rainfall-Runoff modeling is among the classical applications of hydrology. This paper examines results 3 hydrologic approaches, particularly Clark Model, Nash and Geomorphic Instantaneous Unit Hydrograph Model. Assumptions are forwarded for long run use Rawalpindi Division, Pakistan’s Small Dam Organization. The catchment Shahpur was an area under consideration study. Digital elevation model (D...

An oscillatory S-curve causes unexpected fluctuations in a unit hydrograph (UH) of desired duration or an instantaneous UH (IUH) that may affect the constraints for hydrologic stability. On other hand, Savitzky–Golay smoothing and differentiation filter (SG filter) is digital known to smooth data without distorting signal tendency. The present study proposes method based on SG cope with S-curve...