Groundwater recharge, groundwater pumping and regional groundwater flow are the main components of groundwater water balance calculations of an area under study.
Although, there can be much variation in recharge, discharge and regional groundwater flows from place to place. Suppose, we are talking about an area having a square shape, so that lateral flow and vertical recharge/discharge areas are in proportion, i.e. in square shape, the size of the area will not affect the relative proportion of regional flow to vertical recharge/discharge from the aquifer.
My question is: what can be the relative (%) quantum of regional groundwater flow in overall water balance of the area under study, having a square shape.