Requesting Clarification

[Grmay Kassa Brhane]

Dear, I am working on SWAT+ modeling for groundwater estimation, and I have five river gauges from which the observation data for river flow have collected. However, the model performance for the river flow of these gauges is with large variation, and I am confusing to calibrate. Dear, I am trying to calibrate for all together but, the output (performance) is observed in different direction where for is improved but for the other is bad. So, could anyone clarify how it will be possible to achieve good performance by calibration either separately (and integrated later) or at one calibration for all. The position of the river gauge stations is as follows, where the flow pattern of the watershed is from northern to southern of the area, and the stations are arranged from upstream to downstream as give below,

H070__Q1_observed Upstream Northern

H036__Q1_observed

H008__Q1_observed

H043__Q1_observed

H002__Q1_observed Downstream Southern

Dear, for your information I have also attached the performance indexes below:

 

 

Thank you for your very efforts and commitment

With best regards