snow subbasin parameters

[Ignacio Fuentes]

Hi, 

I'm just wondering if there is a way to calibrate snow subbasin parameters.
In swat-cup these are defined as SUB_SFTMP().sno; SUB_SMTMP().sno... instead of SFTMP.bsn; SMTMP.bsn...

Here, these parameters don't seem to be available.

Regards 

[Tam Nguyen]

Do you know the location of these parameters in TxtInOut files (e.g., in which files and which lines)?

[Ignacio Fuentes]

Hi Tam,

Sorry that I missed this, it seems that the mail went directly to my spam folder.

Yes, these files are created independently for each subbasin in the TxtInOut folder when creating the model and editing the subbasin parameters. 

For instance, for subbasin 1 it creates the file "000010000.sno".

This file contains data associated with the SUB_SFTMP, SUB_SMTMP, SUB_SMFMX, SUB_SMFMN, and SUB_TIMP parameters. for instance:

----------------------

 .sno file Subbasin: 1 1/1/2023 12:00:00 AM ArcSWAT 2012.10_7.23
   1.000   1.000   1.000   1.000   1.000   1.000   1.000   1.000   1.000   1.000
   0.500   0.500   0.500   0.500   0.500   0.500   0.500   0.500   0.500   0.500
   4.500   4.500   4.500   4.500   4.500   4.500   4.500   4.500   4.500   4.500
   4.500   4.500   4.500   4.500   4.500   4.500   4.500   4.500   4.500   4.500
   1.000   1.000   1.000   1.000   1.000   1.000   1.000   1.000   1.000   1.000

I'm not sure if it helps but for snowy catchments these parameters can be calibrated for individual subbasins.

Regards

[Tam Nguyen]

could you share with me your whole TxtInOut folder? For testing it is needed