Groundwater discharge
Groundwater discharge is the volumetric flow rate of groundwater through an aquifer. Total groundwater discharge, as reported through a specified area, is similarly expressed as: Q = d h d l K A {\displaystyle Q={\frac {dh}{dl}}KA} where Q is the total groundwater discharge ([L3·T−1]; m3/s), K is the hydraulic conductivity of the aquifer ([L·T−1]; m/s), dh/dl is the hydraulic gradient ([L·L−1]; unitless), and A is the area which the groundwater is flowing through ([L2]; m2) For example, this can be used to determine the flow rate of water flowing along a plane with known geometry.