Software Downloads


Upcoming Workshops

Additional learning resources:

Call for Papers

We are collecting interest for SWAT special edition peer-reviewed journals in the next few months. They will include papers from the 2015 SWAT Conferences in Sardinia, Italy, Purdue University, USA, and Tsukuba, Japan, however other papers may be accepted. Complete a short form to let us know if you're interested.

Job Opportunities

Looking for job opportunities related to SWAT and/or watershed modeling? Check out our listing.

Reviewers Needed!

We are looking for help reviewing SWAT peer-reviewed journal papers from the community. Please sign up as a volunteer.

2015 Conferences

We held three conferences in 2015: Sardinia, Italy June 22-26, Purdue University, USA October 12-16, and Tsukuba, Japan October 19-23. Browse their pages for presentations, video, photos, final paper submission information, and more.


Rice Paddies

November 23, 2015

A group of SWAT developers, including Drs. Balaji Narasimhan (, Phil Gassman (, Jaehak Jeong (, Tasuku Kato (, recently met in Tokyo to discuss and plan improvements in simulation of rice paddy irrigation, hydrology, and water quality by SWAT and APEX. For more information contact these scientists.

Contact Allan Jones to contribute to SWAT's Up.

The Soil and Water Assessment Tool (SWAT) is a public domain model jointly developed by USDA Agricultural Research Service (USDA-ARS) and Texas A&M AgriLife Research, part of The Texas A&M University System. SWAT is a small watershed to river basin-scale model to simulate the quality and quantity of surface and ground water and predict the environmental impact of land use, land management practices, and climate change. SWAT is widely used in assessing soil erosion prevention and control, non-point source pollution control and regional management in watersheds. Read our fact sheet and disclaimer.

Back to top