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Is there a way to enter antecedent moisture conditions for hydrology models? In using HydroCAD antecedent moisture conditions can be set to account for dry, normal, wet, or saturated ground conditions prior to the analysis being run. The setting in hydroCAD adjusts the CN set for the basin to adjust runoff conditions. There is a Antecedent Dry Days options in the analysis options box, but from what I understand it is used for water quality analysis use only and is ignored if not selected.
i am not aware of any setting that can help you achieve this. i would find the corresponding AMC I (dry) and AMC III (wet)curve numbers from national engineering handbook, and code them into the subbasins. hopefully, someone else more knowledgeable will have a better idea how to do this.
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