Outflow at Beginning of Time Interval evaluator uses Outflow at the Beginning of Time Interval = (Inflow at the Beginning of Time Interval+Inflow at the End of Time Interval)+(2*Storage at the Beginning of Time Interval/Time Interval)-((2*Storage at the End of Time Interval/Time Interval)+Outflow at the End of Time Interval) to evaluate the Outflow at the Beginning of Time Interval, The Outflow at Beginning of Time Interval formula is defined as the groundwater discharge to surface water bodies, evapotranspiration, pumping, spring flow, discharge through seepage faces along hillslopes, and any other losses of water from the system. Outflow at the Beginning of Time Interval is denoted by Q1 symbol.
How to evaluate Outflow at Beginning of Time Interval using this online evaluator? To use this online evaluator for Outflow at Beginning of Time Interval, enter Inflow at the Beginning of Time Interval (I1), Inflow at the End of Time Interval (I2), Storage at the Beginning of Time Interval (S1), Time Interval (Δt), Storage at the End of Time Interval (S2) & Outflow at the End of Time Interval (Q2) and hit the calculate button.