SWAT Model

Development of the SWAT model has been taking place since the early 1990s.

Widely distributed versions of the model include SWRRB, SWAT94.2, SWAT96.2, SWAT98.1, and SWAT99 .2.

Home Software SWAT Model

SWAT Model Downloads

Four versions of SWAT are currently being distributed: SWAT98.1, SWAT99.2, SWAT2000 and SWAT2005.

SWAT2005

SWAT2000

Released November 1, 2000
BASINS version: April 18, 2001

SWAT2000 is the version incorporated into EPA's BASINS 3.0 release. This version of the model is the culmination of many months of code review and improvement and incorporates numerous changes.

SWAT99.2

SWAT99.2 is being made available for modelers wishing to use the SWAT Windows (non-GIS) interface. Until we update the Windows interface to run with SWAT2000, the Windows interface for SWAT99.2 and the source code for SWAT99.2 will remain available from the web site.

We strongly urge new users and current users of SWAT99.2 to move to SWAT2000 and take advantage of the many improvements made to the model.

SWAT98.1

SWAT98.1 is being made available for modelers wishing to use the SWAT/GRASS interface. Until we update the SWAT/GRASS interface to run with SWAT2000, the SWAT/GRASS interface for SWAT98.1 and the source code for SWAT98.1 will remain available from the web site.

We strongly urge new users and current users of SWAT98.1 to move to SWAT2000 and take advantage of the many improvements made to the model.

Documentation:

*You may choose to download some files from our FTP server by clicking the link titled FTP next to the file's name.