SWAT+ Calibration Guidance

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Rashila Sapkota

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Jun 25, 2026, 12:09:45 PM (7 days ago) Jun 25
to QSWAT+

Hello everyone,

I have successfully run a SWAT+ model using two years of weather data and would now like to learn the calibration process.

I have a few questions:

  1. How and where can I find or download the simulated output files that are required for calibration?
  2. Is calibration for SWAT+ typically performed using SWATplus-CUP?
  3. I understand that SWATplus-CUP requires a license. Since I do not currently have access to a license, are there any free alternatives available for learning and performing calibration?

I would appreciate any guidance, tutorials, or recommendations for beginners learning SWAT+ calibration.

Thank you.

Rafael Navas

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Jun 25, 2026, 2:29:04 PM (7 days ago) Jun 25
to Rashila Sapkota, QSWAT+
Hi Rashila,
There are several open source packages.
You can check for example:

SWATrunR,  
R-SWAT,
pySWATPlus



Some packages offers descriptive examples which are very useful,

Best,
Rafael 


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