SWAT+

Introducing SWAT+, a completely revised version of the SWAT model. SWAT+ provides a more flexible spatial representation of interactions and processes within a watershed. 

SWAT 2012

The SWAT model is a command line tool that uses text input and output files. See the other links on this page for interfaces and tools for SWAT 2012.

SWAT 2012 Interfaces

  • ArcSWAT
    ArcGIS-ArcView extension for developing SWAT models
  • QSWAT
    QGIS extension for developing SWAT models
  • SWAT Editor
    Interface for editing SWAT inputs
  • SWAT-CUP
    Sensitivity, calibration, validation, and uncertainty analysis

Output Analysis

  • SWAT Check
    Helps to identify potential model input parameters issues
  • SWAT Output Viewer
    Alternative tool to quickly view and analyze SWAT outputs

SWAT Community Tools

  • MapSWAT
    MapSWAT is an open-source QGIS plugin integrated with Google Earth Engine (GEE) that obtains and prepares SWAT+ input maps. It aims to help new or advanced users streamline the setup of their SWAT+ models. MapSWAT makes the preparation of SWAT+ input maps less error-prone, time-consuming and resource-intensive and facilitates model application in any study area worldwide. Additional information and the MapSWAT user manual and executable are available online. View reference paper.
  • SWAT-C
    SWAT-Carbon is a watershed scale model that converges terrestrial and aquatic carbon cycles at the watershed scale. It is based on the SWAT2012 and has unique functions to assess impacts that agricultural management and climate change have on a wide range of processes and indicators, such as soil organic carbon storage, nitrous oxides emissions, freeze-thaw cycles/water temperature, and riverine carbon fluxes.
  • R-SWAT
    Free, open source, graphical user interface for SWAT/SWAT+ calibration, parameter sensitivity/uncertainty analysis. For help see the user group and tutorial videos.
  • SWAT+ Toolbox
    SWAT+ Toolbox is a user-friendly tool for SWAT+ model adaptations. Get the most recent version from the Additional Tools section of the SWAT+ page.
  • SWATrunR
    Integrate SWAT+ and SWAT2012 models in modeling workflows in R
  • SWATdoctR
    SWATdoctR is a collection of functions and routines for SWAT+ model diagnostics and calibration in R. The R package includes routines for a guided model calibration, functions for the evaluation of the model performance, as well as functions for the visualization and diagnosis of simulation outputs. For reference see the original publication.
  • pySWATPlus
    pySWATPlus is a Python library tailored for seamless interaction with Soil and Water Assessment Tool Plus (SWAT+). Empowering users to efficiently manage input and output files within Python environments, pySWATPlus streamlines data manipulation and calibration processes using pymoo.
  • WET - Water Ecosystems Tool
    Advanced lake and reservoir modeling coupled to SWAT
  • SWAT-MODFLOW
    SWAT land surface processes coupled with groundwater flow processes
  • SLEEP Tool
    Soil-Landscape estimation and evaluation program
  • Cloud-based SWAT Tools
    LUU Checker, SWAT LUU, LUU Uncertainty, and Field SWAT
  • Potential Heat Unit Program
    Estimates the number of heat units requires to bring a plant to maturity
  • Baseflow Filter Program
    Estimates baseflow and groundwater recharge from streamflow records
  • SWAT for HydroProcessor and WMOST
    Updated March 2020 for SWAT rev. 670
    Print an output file for each subbasin and quantify total N recharging into the groundwater system
  • Soil & Water Assessment Tool-Sensitivity Analysis (SWAT-SA)
    SWAT-SA is an open tool used for sensitivity analysis and parameter calibration. Contact: Prof. Dr. Min Chen, Nanjing Normal University
  • MWSWAT
    SWAT2012 interface for version 4.8.8 of MapWindow. This software is NOT updated and has been replaced by QSWAT.

Weather Tools

Global Data

Get weather, grid, landuse and soil map data for your SWAT models from our global data page.

Looking for older software not listed on this page? Check out the archive for programs developed for earlier versions of SWAT.