Validation

[NIKITA MACHHI]

Hi Dr. Karim,

I ran SWAT_CUP for the Nebraska basin USA, located near the Platte River, utilizing the specified parameters for SUFI_2. The provided parameter range represents my final and best calibration parameters. During the calibration phase for the years 1986-2006, the Nash-Sutcliffe Efficiency (NSE) value achieved was 0.7. However, when applying these calibrated parameters to the validation period spanning from 2007 to 2022, the NSE value drastically dropped to -1.40. 

I seek guidance on understanding the reasons behind this significant decrease in NSE during the validation period.

Thank You,

Nikita

 

[NIKITA MACHHI]

Hi Dr. Karim,

I ran SWAT_CUP for the Nebraska basin USA, located near the Platte River, utilizing the specified parameters for SUFI_2. The provided parameter range represents my final and best calibration parameters. During the calibration phase for the years 1986-2006, the Nash-Sutcliffe Efficiency (NSE) value achieved was 0.7. However, when applying these calibrated parameters to the validation period spanning from 2007 to 2022, the NSE value drastically dropped to -1.40. 

I seek guidance on understanding the reasons behind this significant decrease in NSE during the validation period.

Thank You,

Nikita

[Harsh Upadhyay]

Try differentiating calibration and validation period based on the averages of the values in each period. The averages of the two periods should be close to each other for the statistical indicators of calibration and validation period to be similar. Check out the SWAT-CUP tutorials by Dr. Karim as he has discussed this in detail.

Regards,
Harsh Upadhyay
Research Scholar
Deptt. of Soil and Water Engineering
Maharana Pratap University of Agriculture and Technology
Udaipur, Rajasthan

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[NIKITA MACHHI]

Thank you 

To view this discussion on the web visit https://groups.google.com/d/msgid/swat-cup/CAAg7typ9VeDA8GCF57wmx_fLtpYq6ZoOeT_hVL1_jowDak26rQ%40mail.gmail.com.

[Md. Sakib Hasan Tumon]

I have done my calibration period. After my calibration, edit the observed data, SUFI2_extract_rch.def, and file.cio, when I click the validation button it shows inactive. How can I solve this problem? I am using the SWATCUP 2012.  

Please help me.