The model will couple the one-dimensional groundwater flow equation with the continuity equation for flow in a stream (Fig 1). The adjoint of this coupled system of equations (Fig 2) will be used to ...

Non-Darcian flow dynamics in aquifers describe groundwater movement under conditions where the linear relationship between hydraulic gradient and discharge, as posited by Darcy’s law, no longer ...

Our use of water does the same thing to the aquifer levels. “We’re contributing to really major low-flow events. And that does have a negative impact on our ecosystem,” White said.

San Marcos Springs experiences lowest early flow in 70 years while the Edwards Aquifer pool level dips back down to Stage 3.