WMS:OC Rational Equation: Difference between revisions

Latest revision as of 21:30, 21 November 2023

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-Flows for the Orange County rational method are calculated from the following equation:
+#redirect [[WMS:Orange_County_Rational_Method#OC_Rational_Equation]]
-Q = 0.90(I - F<sub>m</sub>)A
-where:
-* Q &ndash; peak flow (ft<sup>3</sup>/s or m<sup>3</sup>/s)
-* I &ndash; rainfall intensity (in/hr, mm/hr)
-* F<sub>m</sub> &ndash; maximum [[WMS:OC Losses|loss rate]], where F<sub>m</sub> = a<sub>p</sub> * F<sub>p</sub>
-* A &ndash; catchment area (acres)
-This equation is very similar to the traditional [[WMS:Rational Method Equation|Rational Method equation]]. The term I - F<sub>m</sub> is often referred to as the effective precipitation.
-==Related Topics==
-* [[WMS:OC Losses|Losses]]
-{{WMSMain}}