Support Request about Calibration

[kingstn]

Dear WRF-Hydro Community,

I'm currently working on my first WRF-Hydro simulation and have begun exploring the calibration process. I've encountered a few challenges and would be grateful for your guidance.

Specifically,

1. I noticed that the simulated outputs (e.g., *CHANOBS_DOMAIN2, *CHRTOUT_DOMAIN2, and Route_Link.nc) do not reflect the exact gauge locations I specified.
2. I want to calibrate the model at a single observed gauge station. Is this feasible within the WRF-Hydro framework? If so, is there a recommended approach (manual or otherwise) to achieve this?
3. Additionally, If there are any critical preprocessing steps or setup considerations I should be aware of before starting the calibration, I would appreciate any advice or resources you can share.

For context, I've included plots comparing the observed data with the WRF-Hydro outputs mentioned above.

Thank you very much for your time, and I truly appreciate the valuable support.

[Arezoo RafieeiNasab]

Hello, 

May I ask what you mean by the simulated outputs not reflecting the exact gauge location? Do you mean the location of the gauges is not specified right in the Route_link.nc file when you did the pre-processing, or do you mean the simulated flows are not close to the observation. I thought you mean the latter, but wanted to confirm that is the case? 

I assume you are using the reach based routing given you are referring to to the Routelink, correct? I usually look at the CHANOBS files for verification against the gauge, the feature_id in the CHANOBS file should match the one in the Routelink. And yes, you could calibrate the model at a single gauge location. Here is the github repo for calibration: https://github.com/NCAR/PyWrfHydroCalib . There is documentation for it available here: https://github.com/NCAR/PyWrfHydroCalib/tree/master/docs that you could review and find out more about how it is actually done. 

Let me know if you have any follow up question. Thanks!

Arezoo

--
You received this message because you are subscribed to the Google Groups "wrf-hydro_users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to wrf-hydro_use...@ucar.edu.
To view this discussion visit https://groups.google.com/a/ucar.edu/d/msgid/wrf-hydro_users/c51de8ab-b90f-4034-98b0-62bc96ce7e09n%40ucar.edu.

--

-------------------------------------------------------------------------------------------------

My working day may not be your working day. Please do not feel obliged to reply to this email outside of your normal working hours.

-------------------------------------------------------------------------------------------------

Arezoo Rafieei Nasab, Ph.D.

Project Scientist II

NCAR Research Applications Laboratory

are...@ucar.edu