AGNPS- Annualized Agriculture Non-Point Source Pollution Model

AGricultural Non-Point Source Pollution Model (AGNPS) is a joint USDA - Agricultural Research Service (ARS) and - Natural Resources Conservation Service system of computer models developed to predict non point source pollutant loadings within agricultural watersheds. It contains a continuous simulation surface runoff model designed to assist with determining BMPs, the setting of TMDLs, and for risk & cost/benefit analyses. The set of computer programs consist of:

1. input generation & editing as well as associated databases 
2. the "annualized" science & technology pollutant loading model for agricultural-related watersheds (AnnAGNPS)
3. output reformatting & analysis
4. the integration of more comprehensive routines (CCHE1D) for the stream network processes
5. a stream corridor model (CONCEPTS)
6. an instream water temperature model (SNTEMP)
7. several related salmonid models (SIDO, Fry Emergence, Salmonid Total Life Stage, & Salmonid Economics).

Not all of the models are electronically linked but there are paths of common input/output that, with the use of standard text editors, can be linked.