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Welcome to the SWAT+ model user discussion group.

Please note this group is for questions and discussion related to the model itself, not the editor or the GIS interfaces. For content related to those topics, please see:

For questions and discussions related to the 2012 version of SWAT and its interfaces, please see the SWAT website.

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Website: swat.tamu.edu/plus

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Apr 2

PLEASE READ: New Template for reporting issues

Hi everyone, To ensure the development team and community members can provide the most efficient and

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PLEASE READ: New Template for reporting issues

Hi everyone, To ensure the development team and community members can provide the most efficient and

Apr 2

May 11

Scenario Land Use Not Working

1. Primary Issue Location Component: Decision Tables- Scenario Land Use- lu_change_hru_fr Area of

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Scenario Land Use Not Working

1. Primary Issue Location Component: Decision Tables- Scenario Land Use- lu_change_hru_fr Area of

May 11

May 11

Scenario Land Use not working

I plan to use the decision table function to implement dynamic land use change. However, my

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Scenario Land Use not working

I plan to use the decision table function to implement dynamic land use change. However, my

May 11

Saba Shaghaghi, Leelambar Singh2

May 9

Calibration error

Confirm that the warm-up years defined in file.cio are correctly excluded in your extraction files (

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Calibration error

Confirm that the warm-up years defined in file.cio are correctly excluded in your extraction files (

May 9

May 8

Job Opportunity : Postdoctoral Research Associate – Temple, TX

A Postdoctoral Research Associate position is open at Texas A&M AgriLife Research (Temple, TX).

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Job Opportunity : Postdoctoral Research Associate – Temple, TX

A Postdoctoral Research Associate position is open at Texas A&M AgriLife Research (Temple, TX).

May 8

Amanda Batlle Morera, Nancy B. Sammons2

May 6

swatplus-61.0.2.61-gnu-lin_x86_64-Rel Floating-point exception

Amanda: Thank you for your email. I will take a look and get back to you as soon as possible. Nancy

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swatplus-61.0.2.61-gnu-lin_x86_64-Rel Floating-point exception

Amanda: Thank you for your email. I will take a look and get back to you as soon as possible. Nancy

May 6

Retang Mokua, Nancy B. Sammons3

May 6

SWAT+ RUN issue

Retang: I found some issues in the daily weather files listed below: The number of years in each file

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SWAT+ RUN issue

Retang: I found some issues in the daily weather files listed below: The number of years in each file

May 6

Retang Mokua (via Google Drive)

May 6

Folder shared with you: ‘TxtInOut’

Retang Mokua shared a folder Retang Mokua (ra.m...@saeon.nrf.ac.za) has invited you to contribute to

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Folder shared with you: ‘TxtInOut’

Retang Mokua shared a folder Retang Mokua (ra.m...@saeon.nrf.ac.za) has invited you to contribute to

May 6

May 6

SWAT landuse code

Hi, SWAT+Issue 1. Primary issue Location Component: (QSWAT+) Area of Impact: Model input Creating

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SWAT landuse code

Hi, SWAT+Issue 1. Primary issue Location Component: (QSWAT+) Area of Impact: Model input Creating

May 6

Haikal Arif, Nancy B. Sammons6

May 6

WEGN Data Generator and Stations Problem

Hi Nancy, Here is my 'weather-wgn.cli' file. Also attached herewith the txtinout folder for

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WEGN Data Generator and Stations Problem

Hi Nancy, Here is my 'weather-wgn.cli' file. Also attached herewith the txtinout folder for

May 6

Assefa Abaineh, Nancy B. Sammons2

May 4

Assefa: Please send me your current txtinout folder and I will take a look. Nancy From: swatplus@

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Assefa: Please send me your current txtinout folder and I will take a look. Nancy From: swatplus@

May 4

Apr 30

Hello. Does SWAT/gflow provide a daily recharge output per HRU? I am simulating years 2020 to 2024.

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Hello. Does SWAT/gflow provide a daily recharge output per HRU? I am simulating years 2020 to 2024.

Apr 30

Apr 30

Missing flow data

Good day, How can I treat missing flow data? Should I enter -99 for the gaps, or leave it blank? I

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Missing flow data

Good day, How can I treat missing flow data? Should I enter -99 for the gaps, or leave it blank? I

Apr 30

Apr 30

Nominations for 2026 SWAT Awards

For the past 25 years, the SWAT team has hosted SWAT conferences around the world and, each year,

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Nominations for 2026 SWAT Awards

For the past 25 years, the SWAT team has hosted SWAT conferences around the world and, each year,

Apr 30

Catalina Muñoz

Apr 24

reservor operation

Hi, I'm new to SWAT+ I'm working on a project in a high-mountain area where I have a

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reservor operation

Hi, I'm new to SWAT+ I'm working on a project in a high-mountain area where I have a

Apr 24

Ramya D NITK, Surathkal

Apr 24

Request to help to sort this error while upload the weather data

Request to help to sort this error while upload the weather data

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Request to help to sort this error while upload the weather data

Request to help to sort this error while upload the weather data

Apr 24

Miguel Rodrigues, Nancy B. Sammons3

Apr 23

Revision 61.0.1 simulation error

Dear Nancy, I'm running a newer version of SWAT+ Editor that does not have a debug option. I'

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Revision 61.0.1 simulation error

Dear Nancy, I'm running a newer version of SWAT+ Editor that does not have a debug option. I'

Apr 23

Gmail(crazyzlj)

Apr 22

Re: [SWAT+ User Group] Digest for swatplus@googlegroups.com - 3 updates in 2 topics

Hi everyone, I just accounted the same issue and found it was caused by the format of my usersoil.csv

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Re: [SWAT+ User Group] Digest for swatplus@googlegroups.com - 3 updates in 2 topics

Hi everyone, I just accounted the same issue and found it was caused by the format of my usersoil.csv

Apr 22

Assefa Abaineh, Nancy B. Sammons2

Apr 22

fix these problems

Assefa: Check your 'soils.sol' file, the values are reasonable, there are no 'null'

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fix these problems

Assefa: Check your 'soils.sol' file, the values are reasonable, there are no 'null'

Apr 22

Apr 22

Question on Adding Measured Reservoir Release Data in SWAT+

Hello everyone, I have a question regarding how to add measured reservoir release data in SWAT+.

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Question on Adding Measured Reservoir Release Data in SWAT+

Hello everyone, I have a question regarding how to add measured reservoir release data in SWAT+.

Apr 22

D R Sena, Nancy B. Sammons2

Apr 20

error encountered while gwflow connected.

Dr Sena: I would need a copy of your current txtinout folder so I can take a look. Thank you, Nancy

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error encountered while gwflow connected.

Dr Sena: I would need a copy of your current txtinout folder so I can take a look. Thank you, Nancy

Apr 20

Halinishi Yusuf, Nancy B. Sammons2

Apr 20

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

Halinishi: Please send me your current txtinout folder and I will take a look. It's possible I

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

Halinishi: Please send me your current txtinout folder and I will take a look. It's possible I

Apr 20

Wubneh Belete, Nancy B. Sammons2

Apr 20

run swat+ error

Wubneh: Thank you for your email and comments. I will download the files from the link you provided

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run swat+ error

Wubneh: Thank you for your email and comments. I will download the files from the link you provided

Apr 20

Apr 19

How to provide hourly river discharge observations in SWAT+ Toolbox?

SWAT+ Issue Report Template 1. Primary Issue Location Component: SWAT+ Toolbox Area of impact: Model

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How to provide hourly river discharge observations in SWAT+ Toolbox?

SWAT+ Issue Report Template 1. Primary Issue Location Component: SWAT+ Toolbox Area of impact: Model

Apr 19

Chase Morris, Nancy B. Sammons2

Apr 14

Error in Placing Septic Systems through urld and urmd

Chase: Send me your current txtinout folder and I will take a look. Thank you, Nancy From: swatplus@

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Error in Placing Septic Systems through urld and urmd

Chase: Send me your current txtinout folder and I will take a look. Thank you, Nancy From: swatplus@

Apr 14

Supreetha K S ., Nancy B. Sammons2

Apr 14

Supreetha: It seems your simulation did not complete successfully. I will probably need to take a

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Supreetha: It seems your simulation did not complete successfully. I will probably need to take a

Apr 14

Apr 14

SWAT+ executable crashes with SIGILL (Illegal instruction) on macOS when running official example dataset

Hi, Does anyone have the experience of compiling SWAT+ Editor and QSWAT+ for MacOS (M2) and using the

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SWAT+ executable crashes with SIGILL (Illegal instruction) on macOS when running official example dataset

Hi, Does anyone have the experience of compiling SWAT+ Editor and QSWAT+ for MacOS (M2) and using the

Apr 14

Apr 14

Modelling intercropping in SWAT+

Hello everyone, I m working on hydrological modeling using swat+ and i would like to represent an

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Modelling intercropping in SWAT+

Hello everyone, I m working on hydrological modeling using swat+ and i would like to represent an

Apr 14

Matthew Lombardo, Natalja C.3

Apr 14

Question on Nitrogen Species Units

Hi Natalja, This helped, thank you!

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Question on Nitrogen Species Units

Hi Natalja, This helped, thank you!

Apr 14

Supreetha K S .

Apr 14

Error while running

i am geting error while running the model like below screen shot forrtl: severe (157): Program

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Error while running

i am geting error while running the model like below screen shot forrtl: severe (157): Program

Apr 14

Apr 13

Final call for abstracts! 2026 SWAT Conference, Thessaloniki, Greece

Abstracts due 15 April Last call! Submit your abstract and join us at the SWAT International

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Final call for abstracts! 2026 SWAT Conference, Thessaloniki, Greece

Abstracts due 15 April Last call! Submit your abstract and join us at the SWAT International

Apr 13

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