Water table (source code)

= Water table
{title2=$z=h(x,t)$}
{wiki}

The <water table> is the upper surface of the saturated zone in an <unconfined aquifer>, where liquid <pressure> equals <atmospheric pressure> in the simplest drainage model. Under the <Dupuit approximation>, its height determines <hydrostatic pressure> throughout the saturated region and therefore the lateral <Darcy flux>.