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AGNPS Impoundments

The impoundment module uses a modified sediment deposition algorithm. It is modified to reflect the simplifications associated with small impoundments with restricted pressurized outflow and/or some permanent pool storage. These simplifications are: (1) constant transport discharge equal to a constant outflow; (2) zero sediment transport capacity for all sediment sizes; and (3) dilution of the incoming water-sediment mixture by the permanent pool storage.

Contact: Vance Justice.

 

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