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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

unread,locked,

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

Sep 2

Access Violation error-SWAT+ with gwflow module

Hi all, I have the following error while trying to run model with gwflow as the groundwater module:

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Access Violation error-SWAT+ with gwflow module

Hi all, I have the following error while trying to run model with gwflow as the groundwater module:

Sep 2

bharadwaj mandala

Sep 1

Guidance Needed on SWAT Calibration Without Observed Streamflow Data

Dear SWAT+ Community, I am seeking some guidance regarding model calibration. My study area does not

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Guidance Needed on SWAT Calibration Without Observed Streamflow Data

Dear SWAT+ Community, I am seeking some guidance regarding model calibration. My study area does not

Sep 1

sharafat hussain

Sep 1

Gwflow observation wells not generating output (rev. 62) — missing gwflow.input, no observation-cell mechanism in Editor

Hi All, I am having the following issue SWAT+ Issue Report Template 1. Primary Issue Location

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Gwflow observation wells not generating output (rev. 62) — missing gwflow.input, no observation-cell mechanism in Editor

Hi All, I am having the following issue SWAT+ Issue Report Template 1. Primary Issue Location

Sep 1

Sep 1

extreme sediment peaks following no precipitation events

Hello everyone, 1. Primary Issue Location Component: SWAT+ Executable Area of impact: model output 2.

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extreme sediment peaks following no precipitation events

Hello everyone, 1. Primary Issue Location Component: SWAT+ Executable Area of impact: model output 2.

Sep 1

Sep 1

swatplus@googlegroup

Dear SWAT+ editor and QSWAT+ user group and developers. I'm having difficulties as below. (I am

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swatplus@googlegroup

Dear SWAT+ editor and QSWAT+ user group and developers. I'm having difficulties as below. (I am

Sep 1

sharafat hussain

Sep 1

gwflow observation wells not generating output (rev. 62) — missing gwflow.input, no observation-cell mechanism in Editor

Hi All I have the following issue SWAT+ Issue Report Template 1. Primary Issue Location Component:

unread,

gwflow observation wells not generating output (rev. 62) — missing gwflow.input, no observation-cell mechanism in Editor

Hi All I have the following issue SWAT+ Issue Report Template 1. Primary Issue Location Component:

Sep 1

Aug 28

Access Violation error-gwflow

Hi all, I have the following error while trying to run model with gwflow as the groundwater module:

unread,

Access Violation error-gwflow

Hi all, I have the following error while trying to run model with gwflow as the groundwater module:

Aug 28

Aug 28

wetland and runoff from HRU

In hydrology.wet, hru_frac is documented as "fraction of HRU that drains into wetland".

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wetland and runoff from HRU

In hydrology.wet, hru_frac is documented as "fraction of HRU that drains into wetland".

Aug 28

hanibal genet, Nancy B. Sammons2

Aug 21

error correction

Please send me your current txinout folder and I will take a look. Thank you, Nancy From: swatplus@

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error correction

Please send me your current txinout folder and I will take a look. Thank you, Nancy From: swatplus@

Aug 21

Aug 20

Transmission loss is not added to the aquifer recharge

SWAT+ Issue Report Template 1. Primary Issue Location Component: QSWAT+, SWAT+ Editor, Area of impact

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Transmission loss is not added to the aquifer recharge

SWAT+ Issue Report Template 1. Primary Issue Location Component: QSWAT+, SWAT+ Editor, Area of impact

Aug 20

Liyas Mühendislik, MOHSEN MAHMOODY VANOLYA2

Aug 19

Request for a Tutorial on Modeling an Intermediate Watershed Between an Upstream Inlet and Downstream Outlet

Hi Liyas Mühendislik I agree that this is an important missing practical example in SWAT+ tutorials.

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Request for a Tutorial on Modeling an Intermediate Watershed Between an Upstream Inlet and Downstream Outlet

Hi Liyas Mühendislik I agree that this is an important missing practical example in SWAT+ tutorials.

Aug 19

Ilef Abid, Natalja C.3

Aug 18

Modelling intercropping in SWAT+

thank you Le mercredi 8 juillet 2026 à 16:00:45 UTC+3, Natalja C. a écrit : Hi, Setting up

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Modelling intercropping in SWAT+

thank you Le mercredi 8 juillet 2026 à 16:00:45 UTC+3, Natalja C. a écrit : Hi, Setting up

Aug 18

Panji Mahendra, Nancy B. Sammons2

Aug 12

pls halp me for debug

Please send me your current txtinout folder and I will take a look at this for you. From: swatplus@

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pls halp me for debug

Please send me your current txtinout folder and I will take a look at this for you. From: swatplus@

Aug 12

Mahmudur Rahman

Aug 12

forrtl: error (65): floating invalid— what should I check?

Hi all, Running SWAT+ rev. 61.0.2 (SWAT+ Editor v3.2.3). I'm using SSURGO soils imported via

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forrtl: error (65): floating invalid— what should I check?

Hi all, Running SWAT+ rev. 61.0.2 (SWAT+ Editor v3.2.3). I'm using SSURGO soils imported via

Aug 12

Isaac Kraenbring2

Aug 4

Winter Wheat Growth Issue

Here is an update on this ticket. After taking out the winter wheat and working on the model for a

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Winter Wheat Growth Issue

Here is an update on this ticket. After taking out the winter wheat and working on the model for a

Aug 4

Aug 4

Difference between QSWAT+ Visualization and SWAT+toolbox

Dear members, I got problem in flow (m3/s) value in QSWAT+ visualization and in SWAT+toolbox

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Difference between QSWAT+ Visualization and SWAT+toolbox

Dear members, I got problem in flow (m3/s) value in QSWAT+ visualization and in SWAT+toolbox

Aug 4

Grace, Jaclyn Tech3

Jul 31

SWAT+ Editor Model Output

Hello, thank you for the response. I am specifically trying to look for sediment by landuse. Would

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SWAT+ Editor Model Output

Hello, thank you for the response. I am specifically trying to look for sediment by landuse. Would

Jul 31

Liton Chandra Mazumder

Jul 21

Request for helping for Water Balance Check

Hi Everyone, I run the SWAT+ model. After simulation of the model, I have checked water balance.

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Request for helping for Water Balance Check

Hi Everyone, I run the SWAT+ model. After simulation of the model, I have checked water balance.

Jul 21

Dennis Trolle, … Tadesse M Ejeta11

Jul 21

Daily recall files from SWAT+ Editor no longer compatible with latest SWAT+ code

Dear SWAT+ Model Producer Group, Thank you for the information. After completing an option under land

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Daily recall files from SWAT+ Editor no longer compatible with latest SWAT+ code

Dear SWAT+ Model Producer Group, Thank you for the information. After completing an option under land

Jul 21

Hailu Mosisa Chala, … Nancy B. Sammons3

Jul 20

Errors with SWAT+ editor

Ekono: Is this the same problem that Hailu Chala sent to the group? If so, it has been resolved. It

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Errors with SWAT+ editor

Ekono: Is this the same problem that Hailu Chala sent to the group? If so, it has been resolved. It

Jul 20

Ashish Dhakal, … Nancy B. Sammons7

Jul 17

forrtl: error (73): floating divide by zero

I would like to see your file named 'soils.sol' if you will send it to me. OR your entire

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forrtl: error (73): floating divide by zero

I would like to see your file named 'soils.sol' if you will send it to me. OR your entire

Jul 17

Jul 17

SWAT+ Nutrient Balance: Nitrification and Denitrification Remain Zero

Hello everyone, I have successfully built and run my SWAT+ model, and I am now working on the

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SWAT+ Nutrient Balance: Nitrification and Denitrification Remain Zero

Hello everyone, I have successfully built and run my SWAT+ model, and I am now working on the

Jul 17

Adrien Delaval2

Jul 17

No erosion on subdaily SWAT + ?

Update : Editor 3.1.4 doesn't change "gampt" to 1. If gampt1 is forced manually, it

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No erosion on subdaily SWAT + ?

Update : Editor 3.1.4 doesn't change "gampt" to 1. If gampt1 is forced manually, it

Jul 17

민인경, Natalja C.3

Jul 16

Baseflow Underestimation (Drops to 0.001 CFS) During Dry Season

Thank you for your response. I tried to calibrate Alpha to 0.0005, and it works! I appreciate your

unread,

Baseflow Underestimation (Drops to 0.001 CFS) During Dry Season

Thank you for your response. I tried to calibrate Alpha to 0.0005, and it works! I appreciate your

Jul 16

Eric G Lappala, Natalja C.2

Jul 13

Modeling a tracer test

Hello, Please see the latest conference announcements and presentations related to SWAT+: https://

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Modeling a tracer test

Hello, Please see the latest conference announcements and presentations related to SWAT+: https://

Jul 13

Chong Seok Choi, Natalja C.4

Jul 13

Are these manipulation of SWAT+ possible?

Hello, I certainly remember our conversation! It is great to hear that you are still pursuing this

unread,

Are these manipulation of SWAT+ possible?

Hello, I certainly remember our conversation! It is great to hear that you are still pursuing this

Jul 13

Supreetha K S ., Natalja C.2

Jul 8

Error while running

To ensure the development team and community members can provide the most efficient and accurate help

unread,

Error while running

To ensure the development team and community members can provide the most efficient and accurate help

Jul 8

l sj, Natalja C.2

Jul 8

Scenario Land Use not working

Hello, Both the upd files and the dtl need to be fixed. See attachment and apply your own rules,

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Scenario Land Use not working

Hello, Both the upd files and the dtl need to be fixed. See attachment and apply your own rules,

Jul 8

ekono clement, Natalja C.2

Jul 8

the model produces too much water

To ensure the development team and community members can provide the most efficient and accurate help

unread,

the model produces too much water

To ensure the development team and community members can provide the most efficient and accurate help

Jul 8

ekono clement, Natalja C.2

Jul 8

my model produce much water

To ensure the development team and community members can provide the most efficient and accurate help

unread,

my model produce much water

To ensure the development team and community members can provide the most efficient and accurate help

Jul 8

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