How to make .sno file while building up the model

narayan...@kec.edu.np

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Jul 27, 2016, 3:04:59 PM7/27/16

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Dear All

I am very basic user of SWAT and i built up the model but the textinout folder does not have any files containing .sno, did i miss steps so that they donot exist?

Grey Evenson

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Jul 27, 2016, 3:15:31 PM7/27/16

to narayan...@kec.edu.np, SWAT-user

Hello!

It's my understanding that the .sno files are only necessary if you want to vary the snowfall/melt parameters per each subbasin. If you are fine with having one set of parameters for the entire basin then you can use the parameters as listed in the .bsn file. I've never used the .sno files but would guess that you'd need to manually create those (i.e. create a .sno file for each subbasin and type in the correctly formatted parameters as dictated by the swat input documentation).

On Wed, Jul 27, 2016 at 3:04 PM, <narayan...@kec.edu.np> wrote:

Dear All

I am very basic user of SWAT and i built up the model but the textinout folder does not have any files containing .sno, did i miss steps so that they donot exist?

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Abbaspour

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Jul 27, 2016, 10:30:47 PM7/27/16

to greye...@gmail.com, narayan...@kec.edu.np, SWAT-user

In "edit subbasin inputs" you check "use subbasin snow parameters" and extent to all subbasins.

Karim

Narayan Kumar Shrestha

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Jul 27, 2016, 11:03:20 PM7/27/16

to Abbaspour, Grey Evenson, SWAT-user

Thanks Karim...solved...

Another question:

Another problem, if you see the format of *.sno in (http://swat.tamu.edu/media/69413/ch38_input_sno.pdf), the fifth parameter " SUB_TIMP' should be written on the 5th line but it (the document) says line 3.

And, when I tried to change the parameter from SWAT CUP, it changes all the parameters till line 4, but not the SUB_TIMP. Why? Is it due to an error that it has to be written in Line 3, and in that case, it would replace SUB_SMFM.

Am I missing something here?

Narayan

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