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Welcome to the QSWAT+ user discussion group.

Please note this group is for questions and discussion related to the QGIS interface, QSWAT+, not the model itself or the editor. 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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Tulika K, … Chris George5

Oct 30

Unable to install QSWAT+ in linux

Hi Onur, This does not seem to be a version problem: you are running the same versions as me. I am

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Unable to install QSWAT+ in linux

Hi Onur, This does not seem to be a version problem: you are running the same versions as me. I am

Oct 30

bharadwaj mandala, Nancy B. Sammons2

Oct 30

error while examining the model

You should update your SWAT Checker software. I have included the link below. https://swat.tamu.edu/

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error while examining the model

You should update your SWAT Checker software. I have included the link below. https://swat.tamu.edu/

Oct 30

Matthew Lombardo

Oct 28

Curver Number Maximum and Minimum

Hi everyone, I found this website from 2014 that says that the max and min for curve number is 98 and

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Curver Number Maximum and Minimum

Hi everyone, I found this website from 2014 that says that the max and min for curve number is 98 and

Oct 28

Haris B. Ukat,CE

Oct 28

Compute Simulation Iterations (Initial 2010, Final 2015, Target 2020)

I kindly request assistance in computing the number of simulation iterations for a MOLUSCE cellular

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Compute Simulation Iterations (Initial 2010, Final 2015, Target 2020)

I kindly request assistance in computing the number of simulation iterations for a MOLUSCE cellular

Oct 28

bharadwaj mandala, Gafar Agunbiade2

Oct 28

Issue with HRUs , need HELP!

I think the issue is your projection. Your soul map and the land use have different projection from

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Issue with HRUs , need HELP!

I think the issue is your projection. Your soul map and the land use have different projection from

Oct 28

bharadwaj mandala, Chris George2

Oct 24

PROBLEM WITH CREATING HRUs, NEED HELP

It is likely that you have assigned the project projection to your soil and landuse maps but not

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PROBLEM WITH CREATING HRUs, NEED HELP

It is likely that you have assigned the project projection to your soil and landuse maps but not

Oct 24

Gafar Agunbiade

Oct 24

Modelling a forest+grassland land use

Hi everyone, I'm currently working on modeling my study area, which involves a forest–grassland

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Modelling a forest+grassland land use

Hi everyone, I'm currently working on modeling my study area, which involves a forest–grassland

Oct 24

Matthew Lombardo

Oct 24

Hourly Timesteps for Model Output

Hi everyone, Is it possible to run SWAT+ so it creates outputs at an hourly timescale instead of a

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Hourly Timesteps for Model Output

Hi everyone, Is it possible to run SWAT+ so it creates outputs at an hourly timescale instead of a

Oct 24

Osman Furkan TOKGÖZ

Oct 24

Landscape Analysis is Not Responding

Hi, I'm trying to create a landscape but everytime I try QSWAT+ is not responding. I tried with

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Landscape Analysis is Not Responding

Hi, I'm trying to create a landscape but everytime I try QSWAT+ is not responding. I tried with

Oct 24

Oshadhee Perera, Chris George3

Oct 24

NEED HELP FOR HRU CREATION ERROR

Yes. This came when I use read the maps. The HRUs are displaying but I cant go to the next step (HRU

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NEED HELP FOR HRU CREATION ERROR

Yes. This came when I use read the maps. The HRUs are displaying but I cant go to the next step (HRU

Oct 24

Oshadhee Perera, Chris George2

Oct 20

Unable to create HRUs

Your project looks very strange: there are streams without subbasins. Is it an exiating project? If

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Unable to create HRUs

Your project looks very strange: there are streams without subbasins. Is it an exiating project? If

Oct 20

Oct 15

SSURGO soils error

Hi everyone, I'm getting the following error during HRU creation in SWAT+: “SSURGO soil 1724686 (

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SSURGO soils error

Hi everyone, I'm getting the following error during HRU creation in SWAT+: “SSURGO soil 1724686 (

Oct 15

Matthew Lombardo

Oct 13

Missing Parameter Ranges for Calibration

Hi Everyone, I am about to start my calibration, but some of the parameters that I picked don't

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Missing Parameter Ranges for Calibration

Hi Everyone, I am about to start my calibration, but some of the parameters that I picked don't

Oct 13

Oct 13

SSURGO soil not defined in database

Hi everyone, I'm getting the following error during HRU creation in SWAT+: “SSURGO soil 1724686 (

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SSURGO soil not defined in database

Hi everyone, I'm getting the following error during HRU creation in SWAT+: “SSURGO soil 1724686 (

Oct 13

ABDUL-MOOMEN MOHAMMED

Oct 13

Volunteer Support Needed – Water Balance Analysis in Densu River Basin

Dear QSWAT Community, I'm currently conducting a hydrological modeling project at the University

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Volunteer Support Needed – Water Balance Analysis in Densu River Basin

Dear QSWAT Community, I'm currently conducting a hydrological modeling project at the University

Oct 13

Matthew Boettcher, Chris George2

Oct 11

Visualise Results not Popping Up in QSWAT+

Visualisation is enabled if there is a swatplus_output.sqlite file in the project's Results

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Visualise Results not Popping Up in QSWAT+

Visualisation is enabled if there is a swatplus_output.sqlite file in the project's Results

Oct 11

Camilla Negri, Chris George2

Oct 11

HRU creation with own soil + land use data

The LANDUSE_ID values in the landuse lookup table should all be integers: values found in the landuse

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HRU creation with own soil + land use data

The LANDUSE_ID values in the landuse lookup table should all be integers: values found in the landuse

Oct 11

Oct 11

SWAT+ Soils Error.

Hi everyone, I encountered the following error while running my SWAT+ simulation. Initially, I used

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SWAT+ Soils Error.

Hi everyone, I encountered the following error while running my SWAT+ simulation. Initially, I used

Oct 11

Maggie Armstrong

Oct 11

SWAT+ Toolbox crashes when running sensitivity analysis?

Hi all, This is my first time working with SWAT+ Toolbox and I am unsure what is causing the program

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SWAT+ Toolbox crashes when running sensitivity analysis?

Hi all, This is my first time working with SWAT+ Toolbox and I am unsure what is causing the program

Oct 11

Afonso Augusto Magalhães de Araujo, Celray James2

Oct 9

Workflow to calibrate from up to downstream?

Dear Alfonso, To have regionalised parameters, you need to set them as applying to specific objects.

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Workflow to calibrate from up to downstream?

Dear Alfonso, To have regionalised parameters, you need to set them as applying to specific objects.

Oct 9

Miraj Kayastha, Osman Furkan TOKGÖZ2

Oct 9

Subdaily calibration in SWAT+ Toolbox

Hi Miraj, Daily precipitation values format look like this: (ss2.png) source: https://swatplus.

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Subdaily calibration in SWAT+ Toolbox

Hi Miraj, Daily precipitation values format look like this: (ss2.png) source: https://swatplus.

Oct 9

Matthew Lombardo, Nancy B. Sammons2

Oct 7

Error when running SWAT+ for the first time

Matthew: The HYDGRP column should a,b,c or d not b/d, etc. Nancy From: qswa...@googlegroups.com

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Error when running SWAT+ for the first time

Matthew: The HYDGRP column should a,b,c or d not b/d, etc. Nancy From: qswa...@googlegroups.com

Oct 7

Matthew Lombardo, Chris George3

Oct 7

Error with pH and CaCO3 Columns in Usersoil

Thank you this worked, and thank you for all your help so far Chris! On Friday, 3 October 2025 at 09:

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Error with pH and CaCO3 Columns in Usersoil

Thank you this worked, and thank you for all your help so far Chris! On Friday, 3 October 2025 at 09:

Oct 7

Matthew Lombardo, Chris George2

Sep 30

Error Inputting Manual Usersoil

Usersoil tables are different from SSURGO ones and you should only follow SSURGO examples if using

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Error Inputting Manual Usersoil

Usersoil tables are different from SSURGO ones and you should only follow SSURGO examples if using

Sep 30

Matthew Lombardo, Chris George3

Sep 30

Error from Pond/Reservoir Shapefile

Hi Chris, Thank you for the advice! I thought I properly reprojected it, but I'll check and make

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Error from Pond/Reservoir Shapefile

Hi Chris, Thank you for the advice! I thought I properly reprojected it, but I'll check and make

Sep 30

bharadwaj mandala

Sep 30

Facing issues with step-2 create HRUs

Hello All, Can anyone Help me with Step-2 Create HRUs with LULC data and Soil data.

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Facing issues with step-2 create HRUs

Hello All, Can anyone Help me with Step-2 Create HRUs with LULC data and Soil data.

Sep 30

Matthew Lombardo, Nancy B. Sammons3

Sep 27

Missing Moist Soil Albedo Parameter

Hi Nancy, This definitely helps, thank you! Do you know if SWAT+ accepts ranges for the parameters?

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Missing Moist Soil Albedo Parameter

Hi Nancy, This definitely helps, thank you! Do you know if SWAT+ accepts ranges for the parameters?

Sep 27

Matthew Lombardo

Sep 23

Help with Soil Lookup Tables

Hi all, I forgot to add one question to my last post. Can I input a range instead of a single value

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Help with Soil Lookup Tables

Hi all, I forgot to add one question to my last post. Can I input a range instead of a single value

Sep 23

Matthew Lombardo

Sep 23

Building Soil Lookup and Usersoil Tables

Does anyone have experience with building a soil lookup table and usersoil table? Also, does anyone

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Building Soil Lookup and Usersoil Tables

Does anyone have experience with building a soil lookup table and usersoil table? Also, does anyone

Sep 23

phoebe murage, Nancy B. Sammons3

Sep 22

RUNNING SWAT+ REV 61.0.1_Unable to create Basin_wb_aa

Hi Nancy, I am not sure it successfully runs because I keep getting the error message for the

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RUNNING SWAT+ REV 61.0.1_Unable to create Basin_wb_aa

Hi Nancy, I am not sure it successfully runs because I keep getting the error message for the

Sep 22

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