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What happens if we accidentally add extra variable in grib era5 file ?

Manuarii

Member
Hi,

I recently noticed that I had been downloading extra variables from ERA5—such as total precipitation, cloud cover, and surface net solar shortwave radiation—yet WPS and WRF continued to run correctly. My question is: Are these extra variables actually read or used by WPS or WRF?

The issue arose when I attempted to run simulations over several days. For most of those days, I downloaded the extra variables, but for one file, I excluded them. In this scenario, WRF (when running real) crashes without explanation after successfully generating the `metgrid` files. The crash occurs even though the `metgrid` output appears to be correct.

Thanks for help,
 
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