Please i really need help at sensitivity analysis

[Vitus Tankpa]

Dear All,

I have read the swat cup manual, literature and also follow the platform of swat cup users before i started my calibration but i am really confused and got stacked. I have run my first iteration and got some results, i check the 95ppu plot but i don't really know whether i am on good track or not. Secondly, i checked the results of the global sensitivity analysis but i don't know whether i should delete some parameters away and go ahead to run the second iteration, or i should keep all the same parameters and run the second iteration.I don't know whether i should do one at time sensitivity analysis or global sensitivity analysis.Please find attached the results of my first iteration and help me. Thank you.

[Karim Abbaspour]

Keep them all. See the summary statistics to decide if you need another iteration or not. If yes, examine the new parameters to see if they are with correct ranges, else correct them and run another iteration of around 500 simulations. Should not need more than 3-4 iterations

Karim

On Apr 15, 2019, at 05:13, Vitus Tankpa <tankpa...@gmail.com> wrote:

Dear All,

I have read the swat cup manual, literature and also follow the platform of swat cup users before i started my calibration but i am really confused and got stacked. I have run my first iteration and got some results, i check the 95ppu plot but i don't really know whether i am on good track or not. Secondly, i checked the results of the global sensitivity analysis but i don't know whether i should delete some parameters away and go ahead to run the second iteration, or i should keep all the same parameters and run the second iteration.I don't know whether i should do one at time sensitivity analysis or global sensitivity analysis.Please find attached the results of my first iteration and help me. Thank you.

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<95PPU PLOT.PNG>

<SUMMARY STATS.PNG>

<SENSITIVITY.PNG>

<SENSITIVITY1.PNG>

[Vitus Tankpa]

Thank you very much sir.

On Monday, April 15, 2019 at 12:41:02 PM UTC+8, Abbaspour wrote:

Keep them all. See the summary statistics to decide if you need another iteration or not. If yes, examine the new parameters to see if they are with correct ranges, else correct them and run another iteration of around 500 simulations. Should not need more than 3-4 iterations

Karim

On Apr 15, 2019, at 05:13, Vitus Tankpa <tankpa...@gmail.com> wrote:

Dear All,

I have read the swat cup manual, literature and also follow the platform of swat cup users before i started my calibration but i am really confused and got stacked. I have run my first iteration and got some results, i check the 95ppu plot but i don't really know whether i am on good track or not. Secondly, i checked the results of the global sensitivity analysis but i don't know whether i should delete some parameters away and go ahead to run the second iteration, or i should keep all the same parameters and run the second iteration.I don't know whether i should do one at time sensitivity analysis or global sensitivity analysis.Please find attached the results of my first iteration and help me. Thank you.

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