Page Banner

United States Department of Agriculture

Agricultural Research Service

Impoundments
headline bar
AnnAGNPS Pollutant Loading Model

I. Green BulletImpoundments

Abstract:

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:

Fred D. Theurer or Vance Justice


Last Modified: 8/6/2004
Footer Content Back to Top of Page