Discrepancy Between SWAT+ Editor and SWATPlus-CUP Outputs (NOT Caused by Model Version)

[Martha Ryan]

Dear All,

Hello, I'm currently modeling streamflow for sub-basin along the coast of Delaware from 1995-2024 (w/ a 5 year warm-up period). The watershed is ~2000 km^2 with ~13,000 HRUs and 3 observational gauges along channels 83, 380, & 476 (or 'Units' 31, 132, & 161).

I ran an initial calibration with the "v__WDPQ.bsn" parameter for one iteration as recommended, and the output from SWATPlus-CUP varied greatly from SWAT+ Editor. I double-checked and made sure I was using the same version of SWAT+ (Rev 61.0.1), and I couldn't find any discrepancies between the input files. I also made sure that I used the correct 'Unit' numbers associated with the channels for extraction. 

Does anyone know why there is a discrepancy between the results from Editor and CUP? I included the SWAT+ Editor Scenario TxtInOut file, the SWATPlus-CUP file, and a comparison of the results for the observational gauges below for reference. 

Happy Holidays,

-Martha Ryan

SWAT+ Files

[Martha Ryan]

Dear All,

I've tried using SWAT-CUP with different projects and on another device, and I am still running into the same problem. The results from the SWATplus-CUP projects all differ from the results from SWAT+ editor even though no parameters were adjusted, the same exe version of SWAT was used, and there don't appear to be any discrepancies in the input files.  

Any information regarding what's wrong and how to fix it would be appreciated. 

Best Regards,

-Martha Ryan  

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