A great thing about SWAT is that it’s open source. The algorithms could be modified to best fit the study areas. For a modified version, it’s important to demonstrate the effectiveness by comparing with the base version. The SWAT Viewer gives you all the tools to compare any two version in different angles. In this video, I will talk about the comparison functions in SWAT Viewer. Hope you found it’s helpful for your research.
In some research, the SWAT models are created differently. Only the model input files and some of the shapefiles are available. In this case, you could manually create the swat project and use the SWAT viewer. The video will show you how to do that.
SWAT projects created by ArcSWAT and QSWAT shares the same structure. In this video, I talked about the structure and how the SWAT Viewer use the information to run the model and show the model result on a map. If you are not using ArcSWAT or QSWAT to create your model, you still could use the SWAT Viewer as long as you have the model input files saved in (scenarios -> scenario name-> txtinout) folder and the reach and subbasin shapefiles saved in (watershed -> shapes) folder.
Some SWAT users have experienced the input conversion error when running the SWAT model. The video below will show you what causes this error and how to fix it.
A separate website has been created for SWAT Output Viewer. Posts about that product will be added there in the future. Thanks all for the support. The new website is https://swatviewer.com/.
Some research focus on the nutrient load at the outlet. An annual load table would be helpful. With SWAT Output Viewer, the table could be exported to a CSV file.
The Export button is located in the toolbar besides the help button.
To export the annual TP load, select the most downstream reach in the reach view and select TOT_Pkg in the variable list.
Click the Export Annual button and select the destination folder, the annual data will be exported to a csv file. An example file is shown below.
The thematic map in SWAT Output Viewer is able to show data of three summary types: single time step, annual and average annual. For single time step, it could be each day, each month and each year depending out the configuration of the outputs.
When the single time step option is selected, the time could be switched by double-clicking on the data record in chart table as shown below where monthly result is used. The time is also shown in the in the status bar on the bottom left corner. Note that, this only affect the thematic map. The chart would be affected.