Based on the commonly used Dupuit-Forchheimer approximation, estimates Wrist Strap of groundwater contributions to flows in the San Joaquin River may be too low.Why? Because the vertical ground-water flows through the base of the channel have been neglected in estimates.Scientists found that flows have been underestimated by as much as 25%; such flows may degrade river water quality more than anticipated.The findings suggest the need to closely monitor subsurface runoff.
A Chelsea Boots new look at the estimates is important to the development of water/salinity management plans.