diff --git a/docs/couple/modflow.qmd b/docs/couple/modflow.qmd index 12e09dda4..60862bbcc 100644 --- a/docs/couple/modflow.qmd +++ b/docs/couple/modflow.qmd @@ -235,12 +235,10 @@ groundwater response to Ribasim. From Ribasim's perspective, the groundwater head is constant given a timestep, so that: -$$ \begin{align} p = -C \\ q = -C\phi \end{align} -$$ When the head falls below the drainage elevation, the coefficients are 0. @@ -249,22 +247,18 @@ When the head falls below the drainage elevation, the coefficients are 0. From Ribasim's perspective, infiltration is never limited when the head falls below the bottom: -$$ \begin{align} p = -C \\ q = -Cb \end{align} -$$ Otherwise, infiltration and drainage occur with the same equation as for the drainage package: -$$ \begin{align} p = -C \\ q = -C\phi \end{align} -$$ # Assigning MODFLOW water levels @@ -273,12 +267,10 @@ Principally, MODFLOW deals with water levels; Ribasim deals with water volumes. The translation from a water volume to a water level for a single boundary condition is straightforward: -$$ \begin{align} \Delta d = \frac{\Delta V}{A} \\ h = b + d \end{align} -$$ Where $d$ is water depth, $V$ is volume, $A$ is area, $h$ is water level, and $b$ is the bed elevation.