Software Downloads


Upcoming Workshops

Additional learning resources:

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.

2016 Beijing, China

Beijing background

Beijing Normal University will host a 2016 International SWAT Conference and Workshops July 25-29, 2016. Registration and abstract submission open now! Visit the conference website for more information.

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.


PHOENIX Soil Carbon and Nitrogen Model

January 4, 2016

Cesar Izaurralde, Bill McGill, and Jimmy Williams have incorporated the PHOENIX soil carbon and nitrogen model into APEX, giving users the option of choosing either the CENTURY or PHOENIX approaches to simulating soil carbon and nitrogen dynamics. For more information contact Dr. Williams (

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.

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