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C_{w}L_{w}\left ( Z-Z_{0} \right )^{1.5}, & Z_{0}\leq Z\leq Z_{0}+H_{0}\\
C_{w}L_{w}\left ( Z-Z_{0} \right )^{1.5}, & Z_{0}\leq Z\leq Z_{0}+H_{0}\\
C_{d}A_{0}\sqrt{2g\left (Z-Z_{0}-0.5H_{0}\right)}, & Z_{0}+H_{0}\leq Z\leq Z_{1}\\
C_{d}A_{0}\sqrt{2g\left (Z-Z_{0}-0.5H_{0}\right)}, & Z_{0}+H_{0}\leq Z\leq Z_{1}\\
−C_{w}L_{w}\left ( Z-Z_{1} \right )^{1.5}+C_{d}A_{0}\sqrt{2g\left (Z-Z_{1}\right)}, & Z_{1}<Z
+C_{w}L_{w}\left ( Z-Z_{1} \right )^{1.5}+C_{d}A_{o}\sqrt{2g\left (Z-Z_{1}\right)}, & Z_{1}<Z
\end{matrix}\right.
\end{matrix}\right.
</math>
</math>
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*''L<sub>w</sub>'' = the length of the weir in m,
*''L<sub>w</sub>'' = the length of the weir in m,
*''C<sub>d</sub>'' = the discharge coefficient of the orifice (often defaulted to 0.6 for a sharp edged orifice),
*''C<sub>d</sub>'' = the discharge coefficient of the orifice (often defaulted to 0.6 for a sharp edged orifice),
−*''A<sub>0</sub>'' = the cross-sectional area of the orifice in m<sup>2</sup>,
+*''A<sub>o</sub>'' = the cross-sectional area of the orifice in m<sup>2</sup>,
*}}
*}}