Help on configuration problem

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Zena Tessema

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1:59 AM (19 hours ago) 1:59 AM
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Hello everyone,

I am currently working on a SWAT-MODFLOW simulation for my project.

During the MODFLOW run (using MODFLOW-NWT), I encountered configuration problem, I have attached a screenshot below.

Could anyone please advise on how I can resolve these issues?

I would greatly appreciate any guidance or suggestions you can provide.

Best regards,
Zena Tessema

e18a8465-6aa1-43bb-92a1-d833305d97f1.png
eab1bf99-78c1-4e99-abcc-ce84dccf85ab.png

Jakab Andras - Gmail

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4:13 AM (16 hours ago) 4:13 AM
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Zena,

You apparently have a division by zero issue which may be caused by several reasons. As a first attempt to solve the problem, check if you have zero layer thickness somewhere, turn re-wetting to active, check your boundary conductance values. It may also happen that one or more model cells in the lower layer become unsaturated. If that's the case, check your water balance and figure out why may that happen.

András

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Zena Tessema

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5:22 AM (15 hours ago) 5:22 AM
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Dear Andras

I would like to say thank you for your insightful information.

With best regards,

Zena Tessema

Zena Tessema

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7:25 AM (13 hours ago) 7:25 AM
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Dear Andras

I checked the layer thickness and I did not observe a zero layer thickness value.  

Here I also attached the water budget for your information.

With best regards,

Zena Tessema
Screenshot 2025-12-16 203912.png
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