Surface runoff simulation in fully coupled WRF/WRF-Hydro.

[dyf]

Hello，WRF-Hydro Team：
When running the fully coupled WRF/WRF-Hydro model, I encountered an issue with the surface runoff output in the model. I found that only by disabling OVRTSWCRT, which is turning off overland flow, could I obtain the correct surface runoff output in the wrfout file.
I want to use the fully coupled WRF/WRF-Hydro model to calculate surface runoff. How can I obtain the correct output variables for surface runoff?

 

[haiqingsong]

Hello，WRF-Hydro Team：
When running the fully coupled WRF/WRF-Hydro model, I encountered an issue with the surface runoff output in the model. I found that only by disabling OVRTSWCRT, which is turning off overland flow, could I obtain the correct surface runoff output in the wrfout file.
I want to use the fully coupled WRF/WRF-Hydro model to calculate surface runoff. How can I obtain the correct output variables for surface runoff?

What version of WRF/WRF-Hydro do you use?

 

[dyf]

Thank you for your response!
I am using WRF V4.1.2 and WRF-Hydro-5.1.1.

 

[haiqingsong]

Thank you for your response!
I am using WRF V4.1.2 and WRF-Hydro-5.1.1.

Note that Noah-MP's SFCRNOFF output variable is invalid when you turned on overland flow.
From version 5.1.2，WRF-Hydro team deleted the variable.

 

[dyf]

Thank you for your response! Maybe I should examine WRF-Hydro's sfcheadsubrt variable (in RTOUT) and/or qSfcLatRunoff (in CHRTOUT).