SWAT+ gwflow + PEST++: how to template wide-format gwflow.input?

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Halinishi Yusuf

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Apr 19, 2026, 11:07:58 PM (9 days ago) Apr 19

to SWAT+

Hi all,

I’m trying to run PEST++ (pestpp-glm) on a SWAT+ gwflow model. The model itself runs, but gwflow.input.tpl is causing problems.

The issue seems to be that the template was built from a narrow-layout gwflow.input, while my current SWAT+ gwflow project generates a wide-layout gwflow.input. PEST++ throws many errors saying lines in gwflow.input.tpl exceed 2000 characters. Also, some parameters from the example setup, like WT_DEPTH and RECH_DEL, do not seem to exist in my generated gwflow.input.

Has anyone dealt with this before? What is the recommended way to build a PEST/PEST++ template for the wide-format gwflow.input used by current SWAT+ gwflow projects?

Thanks.

Nancy B. Sammons

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Apr 20, 2026, 8:17:40 AM (9 days ago) Apr 20

to Halinishi Yusuf, SWAT+, Ugraskan, Taci - REE-ARS, TX, Natalja Cerkasova

Halinishi:

Please send me your current txtinout folder and I will take a look. It’s possible I would need ask Dr. Bailey for assistance since this looks to be a groundwater flow problem.

Thank you,

Nancy

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