6 Error Diagnosis¶
Error 1: NaN found¶
of NaNs = 1
Which are NaNs = F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F T F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F
NaN found in field Faxa_bcphidry at gridcell index/lon/lat: 127 358.19271850585938 53.250572204589844
ERROR: ERROR: One or more of the CTSM cap output fields are NaN
note: This is the most common error from CTSM simulations, suggesting that CTSM does not get forcings on time. This could be caused by multiple factors, and I could not find a way to avoid it yet. In my understanding, CTSM is a heavy land surface model and uses hundreds of CPUs. But the number of CPUs for WRF simulations is constrained by grid spacing. Thus, it is challenging to run WRF-CTSM at ultra high spatial resolution, for example, 1 km.
solution:
Increase the time step to leave sufficient time for computing.
Increase threads and CPU cores.
Restart simulations based on
wrfrstand ctsm restart files.