IFS data run WPS and drives WRF

[ZhangQuan]

Dear Sir,

When using IFS data from the European Center with WPS version 4.2 and the latest Vtable.ECMWF to run ungrib.exe, I receive an error stating that variables cannot be read (as shown in the image below). Do I need to use a higher version of WPS or WRF to process IFS data? If so, would version 4.5 or above be sufficient?

I would be most grateful for your response.

Thank you!

 

[haiqingsong]

Dear Sir,

When using IFS data from the European Center with WPS version 4.2 and the latest Vtable.ECMWF to run ungrib.exe, I receive an error stating that variables cannot be read (as shown in the image below). Do I need to use a higher version of WPS or WRF to process IFS data? If so, would version 4.5 or above be sufficient?

I would be most grateful for your response.

Thank you!

You should convert the IFS data using eccodes to the simple grib format before ungrib.

 

[ZhangQuan]

Alright, I think you're right. I'll try doing it that way. Thank you.

 

[ZhangQuan]

Dear Sir,
I'm using the latest Vtable.ECMWF and followed your method to convert IFS to simple format, and the entire WRF workflow runs successfully. However, I noticed that soil data wasn't being read during metgrid processing, forcing me to set num_metgrid_soil_levels = 0 in namelist.input for the run to complete. Attempting to use the latest METGRID.TBL didn't resolve this issue. Could you please provide some solutions?

I would be most grateful for your response.

Thank you!

 

[haiqingsong]

Dear Sir,
I'm using the latest Vtable.ECMWF and followed your method to convert IFS to simple format, and the entire WRF workflow runs successfully. However, I noticed that soil data wasn't being read during metgrid processing, forcing me to set num_metgrid_soil_levels = 0 in namelist.input for the run to complete. Attempting to use the latest METGRID.TBL didn't resolve this issue. Could you please provide some solutions?

I would be most grateful for your response.

Thank you!

WPS4.2 did not support IFS data.
This may help you：update era5/ifs soil field processing by jimbresch · Pull Request #266 · wrf-model/WPS