The Soil & Water Assessment Tool is a small watershed to river basin-scale model used 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.
Introducing SWAT+, a completely revised version of the SWAT model. SWAT+ provides a more flexible spatial representation of interactions and processes within a watershed.
Download SWAT+
Updated Summer 2024
September 2024 - Lima, Peru
A 2024 International SWAT Conference was attended by 45 participants across 12 countries and 4 continents. A special thank you to the Pontificia Universidad Católica del Perú along with Francisco Olivera, Jorge Zegarra, and the rest of the organizing committee for their countless hours and efforts to host the SWAT Community.
July 2024 - Strasbourg, France
The 2024 International SWAT Conference was attended by 185 participants across 41 countries and 6 continents. A special thank you to the National School of Water and Environment Engineering along with Sylvain Payraudeau and the rest of the local organizing committee in Strasbourg for their countless hours and efforts to host the SWAT Community.
Call for Papers
- Water-Regional ISIMIP: are you interested in our next topic?
- Special Issue on SWAT Model Innovations in EMS Journal. Integrating remote sensing and machine learning with SWAT have potential to enhance predictive capabilities, providing actionable insights for sustainable management. This special issue invites collaborative research to demonstrate the integration of these technologies with SWAT, improving performance and broadening its applicability. Submission deadline: Oct 31, 2025
AGU Fall Meeting 9-13 Dec, 2024
Session ID: 223561
Session Title: H002: Advancement in Watershed Modeling: Agricultural Systems, Nutrient Balance, Carbon Cycling and Regulatory
Science Section: Hydrology
Since 2016, this modeling session has served as a forum for extensive discussions among international scientists spanning various disciplines. We aspire to foster collaborative efforts in this session, advocating for advanced insights to drive future investigations into modeling development and associated management strategies. See you in Washington, D.C.~!
View the Program
Submission deadline was July 31 (Wed), 2024
HAWQS 2.0 Webinar
EPA’s Water Modeling Workgroup is hosting a new webinar titled, “HAWQS Version 2” on October 17, 2024, 11am-1pm CDT. This free webinar will introduce version 2 of the Hydrologic and Water Quality System (HAWQS). Register and learn more.
Upcoming Workshops
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12-14 Nov 2024 / Online
Competition Announcement
We invite participants to create original and innovative crop management Decision Tables using SWAT+ Toolbox v2. Check Judging criteria for insights into what we're looking for in terms of innovation, feasibility, and presentation quality. Win SWAT swag as prizes! Deadline 20 November 2024. Learn more.
Software & Data Tools
SWAT-CUP
Calibration/uncertainty or sensitivity
WET - Water Ecosystems Tool
Advanced lake and reservoir modeling coupled to SWAT
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. Sign up as a volunteer.