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Error when real.exe performs vertical interpolation

jrevier

New member
Hi,

I am currently trying to run a simulation using HRRR Reanalysis data for my initial conditions.

To create my met_em files, I am using the hourly hrrr.prs data set for my intial conditions. I used the Vtable.HRRR.bkb (from Brian Blaylock's Github Page) to ungrib the hrrr.prs files. After that I ran metgrid.exe and had no issues.

I am currently running into an error when I run real.exe. My speculation is that there is an issue with the vertical interpolation calculations. This error came up after adding sfcp_to_sfcp = .true. in my namelist.input file to avoid a sfcp calculation error in real.exe. The error it is returning is as follows:

-------------- FATAL CALLED ---------------
FATAL CALLED FROM FILE: <stdin> LINE: 6121
pal, linear is about as low as we go
-------------------------------------------
-------------- FATAL CALLED ---------------
FATAL CALLED FROM FILE: <stdin> LINE: 6121
pal, linear is about as low as we go
-------------------------------------------


I have never come across this error, and I have yet to find any documentation about this error. Does anybody know what this error is referring to or how I can resolve it?
I have provided the a real.log file that contains the real.exe output and namelist.input file.

Thank you,

-Jared
 

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Last edited:

jrevier

New member
UPDATE:

Using debug_level = 150 I have traced the problem to the calling of HALO_EM_VINTERP_UV_1_inline.inc in real.exe after the eta_levels and thicknesses are determined.

Still searching for a solution.
 
Last edited:

jrevier

New member
UPDATE:

So the hrrr.prs input data I was using was from 2016. I decided to grab hrrr.prs data from 2021 and run through the same process. I had no issues running real.exe with the 2021 data and I was able to get a simulation going.

Would anybody be able to explain why 2016 HRRR data does not work as initial conditions in WRF?

Thanks.
 

kwerner

Administrator
Staff member
Hi,
Take a look at this older post that discusses this error and a solution to it. I'm not sure if it's exactly the same as what you're experiencing, but maybe it will point you in the right direction.
 
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