Surface-water quality and flow Modeling Interest Group

USDA Model Archives

SWAT

The USDA - Agricultural Research Service's Soil and Water Assessment Tool (SWAT).

KINEROS

The USDA-ARS Kinematic Runoff and Erosion Model (KINEROS).

AGWA

The Automated Geospatial Watershed Assessment tool, developed jointly by EPA and USDA/ARS.

TR-55 | WinTR-55

Program and documentation for this NRCS urban hydrology model for small watersheds.

TR-20 | WinTR-20

A NRCS model that routes flow and generates runoff hydrographs.

TR-19

A NRCS model that calculates storage requirements to meet supply-demand relations.

SITES

A NRCS model that calculates rainfall-runoff for dam and spillway analysis and design.

WEPP

The Water Erosion Prediction Project model, from the USDA's National Soil Erosion Research Laboratory.

RUSLE2

The latest software implementing the Revised Universal Soil Loss Equation.

PRISM

The Parameter-elevation Regressions on Independent Slopes Model.

AGNPS (fact sheet | ftp site)

The USDA - Agricultural Research Service's Agricultural Non-Point Source pollution model.

AGNPS 2001

An update to AGNPS.

HU/WQ

The Hydrologic Unit Water Quality Tool.

REMM

The Riparian Ecosystem Management Model.

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