Subbasin-specific parameters not working in SWATplus-CUP; Should I use PolygonId instead of Subbasin #?

[Andrea Hill]

Hello,

I am having trouble making my parameters subbasin-specific to subbasins upstream of particular flow observations.

I have had little success. When I make the parameters subbasin-specific, I get statistical results similar to those achieved with no calibration at all and far lower than what I achieve when I make the same parameter choices without specifying subbasins. This leads me to believe the parameters are not changing as I desire.

Do you specify subbasins based on their subbasin # or polygonId in SWATplus-CUP? I'm wondering if that could be the problem.

Best,

Andrea

[Andrea Hill]

Hello,

I have attempted to alter parameters locally based on subbasins in SWATplus-CUP. I've tried using both subbasin numbers and polygon IDs, but neither works.

I've done runs setting parameter values to a single value without specifying subbasins and with specifying subbasins (trying both subbasin # and polygonId) and get vastly different results. The runs I attempt to alter parameters specifying subbasins after using the Utility Programs and double-checking the resulting upstream subbasins have statistics akin to those with parameters left unchanged. 

The following is the format I used to set parameter values:

r__CN2.mgt________33,5,9-11,14-15,17-18,20-22,24-26,30,32,34,36-41,44,48-49,51-54,56,59-60,63,66,72-73,78,80,84,91-92 -0.137667       -0.137667

r__SOL_AWC().sol________33,5,9-11,14-15,17-18,20-22,24-26,30,32,34,36-41,44,48-49,51-54,56,59-60,63,66,72-73,78,80,84,91-92 -0.889250       -0.889250

v__GWQMN.gw________33,5,9-11,14-15,17-18,20-22,24-26,30,32,34,36-41,44,48-49,51-54,56,59-60,63,66,72-73,78,80,84,91-92 1538.583374      1538.583374

Has anyone had success calibrating specifying subbasins in SWATplus-CUP?

Please assist,

Andrea

[2w2e]

Hello,

You have to extract based on the units number. Don't use gis_id or name. Subbasin 355 is unit 352. You are extracting subbasin 358 now. 

It is the unit number that is sequential, so must use that. 

[Andrea Hill]

Thank you so much for pointing that out! I'll have to redo all of my analysis.

If possible, could that information go in the manual or tutorial videos for SWATplus-CUP?

Best,

Andrea

P.S.  I'll go back to an earlier email I sent in the google group and update the correct answer for how to retrieve channel observations in SWATplus-CUP.

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