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R-SWAT

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This is an interactive web-based app (written in R language) for parallel parameter sensitivity, calibration, and uncertainty analysis with the Soil and Water Assessment Tool (SWAT).

Link to code https://github.com/tamnva/R-SWAT
Tutorial videos: https://www.youtube.com/channel/UCRK1rKFiNgYbG7qKWxAPtEQ

IMPORTANT: If you enconter issues when using R-SWAT, before posting question here, please:

Search if there were already similar issues and suggested solutions posted in this group.
Make sure that this is R-SWAT issue, not SWAT/SWAT+ issues by running manually the SWAT executable files in your TxtInOut_[x] in the working folder created by R-SWAT.

0 selected

Payam, … Daff gul20

9:51 AM

Future 95PPU in LSU scale

Hello Dr. Tam, I'm also using HPCs for running RStudio on Linux, working with daily data for a

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Future 95PPU in LSU scale

Hello Dr. Tam, I'm also using HPCs for running RStudio on Linux, working with daily data for a

9:51 AM

Kamal Ziaul Islam, Aimen Sattar2

Mar 9

Assistance Needed for Crop Calibration

Hi Kamal, Did you manage to resolve this? I am trying to do this but seeing no change in the yield.

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Assistance Needed for Crop Calibration

Hi Kamal, Did you manage to resolve this? I am trying to do this but seeing no change in the yield.

Mar 9

Feb 21

SWAT and SWAT+ executable fiels using in the tutorial video

Here is the link to the two executable files https://drive.google.com/drive/folders/

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SWAT and SWAT+ executable fiels using in the tutorial video

Here is the link to the two executable files https://drive.google.com/drive/folders/

Feb 21

Sreeraj Sreenivas, … Silva Eng3

Feb 21

Same NSE values for simulation

Hello, I'm having the same problem calculating the objective function (pBIAS). The values are

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Same NSE values for simulation

Hello, I'm having the same problem calculating the objective function (pBIAS). The values are

Feb 21

Feb 21

Error and solution in parameter definition table

Dear All, I have created a parameter table that contained an error, namely that there was by mistake

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Error and solution in parameter definition table

Dear All, I have created a parameter table that contained an error, namely that there was by mistake

Feb 21

Feb 21

Error in the calculation of the objetive function

Dear all, I would like to ask for help on the calculation of the objective function, because when I

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Error in the calculation of the objetive function

Dear all, I would like to ask for help on the calculation of the objective function, because when I

Feb 21

Feb 15

Question Regarding R-SWATplus Results

Hello Dr. Tam, I have a few questions after getting the results from R-SWATplus. If I have five

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Question Regarding R-SWATplus Results

Hello Dr. Tam, I have a few questions after getting the results from R-SWATplus. If I have five

Feb 15

joke lawal, … Alfa Essossinam8

Feb 12

Optimization/Uncertaintity Tab

Greetings Dr Tam Please I could not plot, would you please me out. I have attached RSWATproject.rds

unread,

Optimization/Uncertaintity Tab

Greetings Dr Tam Please I could not plot, would you please me out. I have attached RSWATproject.rds

Feb 12

Feb 12

error in display plot of objective fn value

Dear all, I have added one pic and my model. Please check the issue and let me know the correction.

unread,

error in display plot of objective fn value

Dear all, I have added one pic and my model. Please check the issue and let me know the correction.

Feb 12

Miguel Rodrigues, Tam Nguyen3

Feb 7

Multi-site calibration using R-SWAT

could you share the screenshot of the error and the RSWATproject.rds with me? On Friday, February 7,

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Multi-site calibration using R-SWAT

could you share the screenshot of the error and the RSWATproject.rds with me? On Friday, February 7,

Feb 7

Aashutosh Aryal, … chidinma igwenagu12

Feb 7

Error: "no lines available in input"

Dear Tam, I have the error " task 1 failed - "no lines available in input", I have

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Error: "no lines available in input"

Dear Tam, I have the error " task 1 failed - "no lines available in input", I have

Feb 7

Jan 29

Dear Users, What could be the lulc code for Flooded vegetation for swat /swat+ modeling? Looking

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Dear Users, What could be the lulc code for Flooded vegetation for swat /swat+ modeling? Looking

Jan 29

Abdelhak ALLEM2

Jan 25

Error in monthly calibration

Hello everybody. I'm having some problem with the monthly calibration, I made the changes as

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Error in monthly calibration

Hello everybody. I'm having some problem with the monthly calibration, I made the changes as

Jan 25

shyam bhardwaj, Tam Nguyen3

Jan 23

Re: sensitivity analysis results are not visible

Thanks sir On Thu, 16 Jan 2025, 10:10 pm Tam Nguyen, <tam...@gmail.com> wrote: you just have 10

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Re: sensitivity analysis results are not visible

Thanks sir On Thu, 16 Jan 2025, 10:10 pm Tam Nguyen, <tam...@gmail.com> wrote: you just have 10

Jan 23

shyam bhardwaj, Tam Nguyen3

Jan 16

Re: error in RSWAT observed streamflow file

sorry for my late reply. I can load your data without any issue (see attached screenshot). Can you

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Re: error in RSWAT observed streamflow file

sorry for my late reply. I can load your data without any issue (see attached screenshot). Can you

Jan 16

Reta Wondimagegnehu, Tam Nguyen3

Jan 5

ERROR in input data - please see R console

Thanks,Dr. Tam, now it works. the problem was i used obr_Var_1 data including warm up period, now i

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ERROR in input data - please see R console

Thanks,Dr. Tam, now it works. the problem was i used obr_Var_1 data including warm up period, now i

Jan 5

maha smiri, Tam Nguyen2

Jan 3

Objective function error

please correct the obsered data (add more data). Your observed data are only till 2022-09-01 but R-

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Objective function error

please correct the obsered data (add more data). Your observed data are only till 2022-09-01 but R-

Jan 3

Miguel Rodrigues2

Jan 3

R-SWAT running issue

It seems I found the cause of the issue. As posted in another thread, the parameter ranges were too

unread,

R-SWAT running issue

It seems I found the cause of the issue. As posted in another thread, the parameter ranges were too

Jan 3

Minsu KIM, … Tam Nguyen4

12/17/24

Transfer best_value of all parameter back to SWAT model

hi, if you just want to have the best parameterset(s), you can sort by the objective function of the

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Transfer best_value of all parameter back to SWAT model

hi, if you just want to have the best parameterset(s), you can sort by the objective function of the

12/17/24

12/17/24

Calibration plot

Good day, Tam, please, I would like to ask why my calibration plot is like this and what i can do to

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Calibration plot

Good day, Tam, please, I would like to ask why my calibration plot is like this and what i can do to

12/17/24

Nerea Bilbao, … Rishabh Srikar29

12/13/24

Error in the calculation of the objetive function

Hi Dr Tam, I understand. I deeply appreciate your response and the parameter file. I shall attempt

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Error in the calculation of the objetive function

Hi Dr Tam, I understand. I deeply appreciate your response and the parameter file. I shall attempt

12/13/24

12/11/24

Error: "no lines available in input"

Hello, I'm encountering an issue while trying to run RSWAT: [SPS-ERROR] 2023-04-30 20:51:34 task

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Error: "no lines available in input"

Hello, I'm encountering an issue while trying to run RSWAT: [SPS-ERROR] 2023-04-30 20:51:34 task

12/11/24

Hesham Sabry, Tam Nguyen2

11/27/24

Exclude specific HRUs from the calibration

please see that SWAT+ documentation because the rules in here are from the SWAT+ On Thursday,

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Exclude specific HRUs from the calibration

please see that SWAT+ documentation because the rules in here are from the SWAT+ On Thursday,

11/27/24

shyam bhardwaj, Tam Nguyen2

11/27/24

Re: issue in observed file

I have tried to load this file, it works, there is nothing wrong with your file On Friday, November 1

unread,

Re: issue in observed file

I have tried to load this file, it works, there is nothing wrong with your file On Friday, November 1

11/27/24

11/27/24

CALIBRATION OF ET FOR THE ENTIER BASIN

Dear Tam, I have been working extensively on calibrating the monthly evapotranspiration (ET) for the

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CALIBRATION OF ET FOR THE ENTIER BASIN

Dear Tam, I have been working extensively on calibrating the monthly evapotranspiration (ET) for the

11/27/24

Rodhrai Crowley, Tam Nguyen3

11/14/24

Tab 4.3 Setting a behavioural threshold to generate 95 PPU for separate variables

Hi Tam, Thank you for your suggestions, much appreciated. Best wishes, Rodhraí On Wednesday, 30

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Tab 4.3 Setting a behavioural threshold to generate 95 PPU for separate variables

Hi Tam, Thank you for your suggestions, much appreciated. Best wishes, Rodhraí On Wednesday, 30

11/14/24

11/14/24

Subbasin by Subbasin calibration?

Hi Tam, I have a very large basin and it's hard to calibrate it in one time with multi-site

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Subbasin by Subbasin calibration?

Hi Tam, I have a very large basin and it's hard to calibrate it in one time with multi-site

11/14/24

Hesham Sabry, Tam Nguyen10

11/8/24

[SPS-ERROR] 2024-10-26 09:22:50.540346 task 5 failed - "no lines available in input"

Thank you so much Tam! I recreate the whole project again, and it's solved now. On Tuesday,

unread,

[SPS-ERROR] 2024-10-26 09:22:50.540346 task 5 failed - "no lines available in input"

Thank you so much Tam! I recreate the whole project again, and it's solved now. On Tuesday,

11/8/24

11/8/24

Dear all, I'm stuck calibrating the upstream flow from my model. I'm attaching a photo here

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Dear all, I'm stuck calibrating the upstream flow from my model. I'm attaching a photo here

11/8/24

Shadi Fard, … ana corrochano5

11/7/24

Running R-SWAT on a SLURM server

Hello Shadi, I hope is not too late for my question. I'm planning on running R-SWAT on a remote

unread,

Running R-SWAT on a SLURM server

Hello Shadi, I hope is not too late for my question. I'm planning on running R-SWAT on a remote

11/7/24

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