Different results: Toolbox and Swat+

[Viktoria A]

Hello everyone, 

I calibrated my modell using the Toolbox. Now I want to implement the results into my modell. I copied the calibation.cal file, I changed the file.cio, checked the time period and changed the codes.bsn to the same one in the toolbox. 

Then I let my modell run using rev59_3_64rel. 

But when I check the average outflow (e.g. in the channel_sdmorph_aa) and compare this data with the toolbox data I get different results. 

Any Idea what I could do wrong? Or how I can solve this problem?

Cheers Viktoria

[SWAT+ Toolbox]

Why are you calibrating with > rev 60 and applying parameters for rev59? why are you using rev59 specifically?

Also, different revisions will simulate different results.

[Viktoria A]

That is a good question. I didnt think about the version. I will try it with the same one.

Thank you :)

[Viktoria A]

Just if somebody else has a similar problem :)

Firstly I really changed using the right swat+ plus version.

But I also had a differnt problem as well.

In my case the Toolbox hasn't used my tmp files. So it invented the temperature or calculated it from the weather generator. 

This changed my water balance and out flow. I had to copy the file from the default into the calibation folder.

And another problem which I caught was that it does not always takes the pointsource/input file which I had in my default project. 

Which means, I had to copy ptxyz.txt into my calibartion file so that the toolbox would work with it.

Cheers, Viktoria 

[Fernando Avendaño]

Hi Viktoria,

Ī am having the same issue. The results I get when using the executable or the SWAT+Editor are completely different to the results I get from the SWAT+Toolbox (which are very much off). I have followed your suggestion and replaced the original TxtInOut folder with the Calibration folder, but even then, when I use SWAT+Toolbox, I get totally different results. How did you spot that SPT was not incorporating your tmp files?

Cheers,

[Celray James]

If you have your project in OneDrive, tmp files are perceived as Temporary files and are deleted. the Temperature issue has nothing to do with SWAT+ Toolbox, but how Windows treats tmp files.

The executable used in SPT and SPE is the same exact copy. However there are other settings that you must match such as soil crack code. These are available in the "run section" and make a big difference in output.

[Fernando Avendaño]

Thanks Celray for your help.

I have tried changing the soil crack flow, but did not work unfortunately. All files are out of Onedrive, so that should not be the problem.

I can't figure out what can be, so I am trying some other calibration methods in the meantime.

In the link below (wetransfer) there is a copy of my TxtInOut and the results of channel 1 both from SPE and SPT. SPT is estimating sediments around 17k tonnes per day, while SPE is estimating 0.5 or so. I would really really appreciate if you could help me figure out what the problem might be.

https://we.tl/t-KyRKkwWQnZ

Kind regards,

[SWAT+ Toolbox]

Please send me the Two TxtInOut - One from SPE and the other from SPT. that way i can see what basin codes are different.

[Fernando Avendaño]

Hi all,

Thanks again for the quick replies. I have checked that the codes are the same between SPE and SPT, but still having a very large sediment difference from both (channel 1 exported). Please find attached both TxtInOut from SPT (Calibration) and SPE (TxtInOut).

https://we.tl/t-JmPk5BHU0g

Regards,