Catchment Area given Lag Time of 1-h Unit Hydrograph evaluator uses Area of Catchment = Peak discharge of a D-h Unit hydrograph*(Lag Time of a 1-h Unit Hydrograph/1.56)^(1/0.9) to evaluate the Area of Catchment, The Catchment Area given Lag Time of 1-h Unit Hydrograph formula is defined as the area of land where all of the precipitation that falls, less the water lost to evaporation and deep aquifer recharge, eventually flows to a single outlet. Area of Catchment is denoted by A symbol.
How to evaluate Catchment Area given Lag Time of 1-h Unit Hydrograph using this online evaluator? To use this online evaluator for Catchment Area given Lag Time of 1-h Unit Hydrograph, enter Peak discharge of a D-h Unit hydrograph (Qpd) & Lag Time of a 1-h Unit Hydrograph (Tp1) and hit the calculate button.