NSE Value Stuck at 0.01 in SWAT+ Toolbox Automatic Calibration

fatima ilyas

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Jan 17, 2025, 4:07:11 PMJan 17

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Dear SWAT+ Toolbox users,

I have performed a sensitivity analysis for streamflow and am now attempting automatic calibration using the SWAT+ Toolbox. However, the calibration process is not progressing effectively, as the NSE value remains stuck at 0.01 after 24/50 iteration (improved from -0.83). Are there specific parameters or steps I should revisit or refine to achieve better calibration performance?

Thank you.

Best regards,
Fatima

before_calibration.png

After_automatic_calibration (3).png

After_automatic_calibration.png

sensitivity_analysis.png

After_automatic_calibration (2).png

Celray James

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Jan 17, 2025, 5:09:44 PMJan 17

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Sometimes, it is just the quality of input and observations that could prevent further improvements

Andreé Hidalgo Ravelo

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Jan 18, 2025, 7:03:22 AMJan 18

to fatima ilyas, SWAT+ Toolbox

Add PERCO and Latq_co to your parameters.

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Mohammed Shaheen

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Sep 18, 2025, 12:14:49 PMSep 18

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Dear all,

I hope you’re well. Were you able to resolve the problem? If so, I’d appreciate it if you could let me know how you approached it.

Best regards,

Mohammad Shaheen

Mohammed Shaheen

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Sep 18, 2025, 12:15:00 PMSep 18

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Dear all,

I hope you’re well. Were you able to resolve the problem? If so, I’d appreciate it if you could let me know how you approached it.

Best regards,
Mohammad Shaheen

On Saturday, January 18, 2025 at 7:03:22 AM UTC-5 Andreé Hidalgo Ravelo wrote:

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