how to increase precipitaton for capturing major peaks events?

[Hydro Water]

Hello Karim and all,

My model performance statistics (p & r factor, NS, R2, pbias etc) are within acceptable range. The model captures normal years peak however, underestimate a few high year event. knowing that there are issues with precipitation (based on published literature) in my catchment,  Is there anyway or factor that i can use to bump precipitaton (increase by a factor) that would help in capturing all those peak years event without re-calibrating the model. The focus of the study is to capture all peak events so it is ok if we are overestimating peaks of the normal years.

All thoughts are welcome,

Ameer

[Karim Abbaspour]

Yes, look in the manual.

Karim

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[Hydro Water]

Many thanks Karim,

On page 53/54 of the usermanual i see description of using precipitation and temperature as parameter. I do not want to use precipitation as calibration parameter, what i want is to bump up my precipitation to help capturing peaks of the already calibrated model. One way is to multiply precipitation with a factor outside of SWAT/SWAT-CUP and bring back the pcp and tmp, which would require going back to SWAT model- regenerate pcp and tmp files and bring it to the SWAT-cup directory. I am looking for a solution within SWAT-CUP.

Ameer

[Natalja C.]

There is a solution in SWAT, just adjust the RFINC in your .sub files. Refer to the Swat IO manual for more detail.

Best,

Natalja