Run Issue on the SWAT+gwflow model set-up

[Gamze Yıldırım]

Hi everone, 

i try to set-up my SWAT+gwflow model. When i run the model, i receive such an error. Anyone knows how to solve this?

forrtl: error (72): floating overflow Image PC Routine Line Source rev61.0.2_64rel.e 00007FF7D3095DB6 GWFLOW_SIMULATE 400 gwflow_simulate.f90 rev61.0.2_64rel.e 00007FF7D3024B18 COMMAND 268 command.f90 rev61.0.2_64rel.e 00007FF7D337A830 TIME_CONTROL 254 time_control.f90 rev61.0.2_64rel.e 00007FF7D322DBA7 MAIN 129 main.f90 rev61.0.2_64rel.e 00007FF7D339D6FB Unknown Unknown Unknown rev61.0.2_64rel.e 00007FF7D33A5C60 Unknown Unknown Unknown KERNEL32.DLL 00007FF90C5BE957 Unknown Unknown Unknown ntdll.dll 00007FF90D987C1C Unknown Unknown Unknown

nks

Many tha in advance.

[Nancy B. Sammons]

Gamze: 

Please send me the contents of your current txtinout folder and I will take a look at this for you.  

Thank you,

Nancy

 

From: swat...@googlegroups.com <swat...@googlegroups.com> On Behalf Of Gamze Yıldırım
Sent: Sunday, June 21, 2026 3:00 PM
To: SWAT+ <swat...@googlegroups.com>
Subject: [SWAT+ User Group] Run Issue on the SWAT+gwflow model set-up

 

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[Gamze Yıldırım]

Hi Nancy,

Many thanks for your email.

I’ve solved that issue and successfully run my model (SWAT+gwflow for surface and groundwater flow modelling). 

I have another issue now. I try to calibrate my model using SWAT+tool but i could not get a meaningful result yet (although it provides an NSE value, it does not provide a chart for observed vs simulated results). I can run the model through automatic calibration; however, when i try to manually calibrate it, this error pops-up. 

Should i use another calibration tool (e.g., PEST)? I am not sure SWAT+tool is capable of a large basin.

Regards,

GY.

[Celray James CHAWANDA]

Please send me your project.

Also, keep in mind that gwflow is only supported in SWAT+ Toolbox (SPT) v4.0 and up. from the looks of it, you are trying to use gqflow with v3 of SPT

Celray James