Volume of Return Flow evaluator uses Volume of Return Flow = -Natural Flow Volume+Observed Flow Volume+Volume Diverted Out of Stream+Net Evaporation Losses+Net Export of Water from Basin+Change in Storage Volumes to evaluate the Volume of Return Flow, The Volume of Return Flow formula is defined as the quantity of surface and subsurface water that leaves the field following the application of irrigation water. Volume of Return Flow is denoted by Vr symbol.
How to evaluate Volume of Return Flow using this online evaluator? To use this online evaluator for Volume of Return Flow, enter Natural Flow Volume (RN), Observed Flow Volume (Ro), Volume Diverted Out of Stream (Vd), Net Evaporation Losses (EM), Net Export of Water from Basin (Fx) & Change in Storage Volumes (ΔSv) and hit the calculate button.