Software QSWAT

QSWAT is a QGIS interface for SWAT. Join the QSWAT Google group to interact with other members of the community.

QSWAT 1.5 was released Jan. 3, 2018.

Changes from version 1.4

  1. There are pre-defined print composition templates for displaying 1, 2, 3, 4 or 6 maps showing SWAT outputs.
  2. Single and multiple animations of SWAT outputs may be recorded as videos.
  3. Bug fixes:
    • possible reduction in HRU area when splitting a landuse into an existing landuse
    • possible multiple instances of delineation/HRU/visualisation forms

QSWAT Requirements

  • Microsoft Windows (any version, as far as we are aware)
  • Microsoft Access, as the interface uses an Access Database
  • Text editor and a tool to unzip archived files
  • SWAT Editor 2012.10.19 - requirements include:


  • Install QGIS by running QGIS-OSGeo4W-2.6.1-1-Setup-x86.exe. Use the default folder C:\Program Files\QGIS Brighton as the installation folder, or C:\Program Files (x86)\MQGIS Brighton on a 64-bit machine. Currently you must use the 32-bit version on 64-bit machines. It is also currently necessary to use version 2.6 rather than 2.8.  From now on we will use Program Files as a folder name, even though it will be Program Files (x86) on a 64-bit machine.
  • Install SWATEditor 2012 in its standard place C:\SWAT\SWATEditor. 
    • Refer to Appendix I of the QSWAT Manual for help updating a database.
    • Refer to the SWATEditor_Documentation.pdf in C:\SWAT\SWATEditor\SWATEditorHelp for help getting started.
  • Install QSWAT. This adds some files to the SWATEditor: a project database and a reference database in Databases, SWATGraph in the SWATGraph folder, and also stores the TauDEM executables in a new directory C:\SWAT\SWATEditor\TauDEM5Bin. The QGIS plugin QSWAT is put into the user's home directory in .qgis2\python\plugins\QSwat, which we will refer to as the QSWAT directory.
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