Error running "real.exe" caused by map scale factor

[dharma102]

I am getting error while running "real.exe (WRF V4.2)". In "rsl.out.00" error occured after the line "Max map factor in domain 1 = 0.00. Scale the dt in the model accordingly". I ran "WPS V4.2" to generate the *met_em* files which is having a correct range of MAPFAC values(range 0.99 to 1.01). Then why it shows "max map factor = 0" ? I am using NCEP FNL data for initialisation.

relevant files attached...

 

[Ming Chen]

I repeated your case for D01. The map factor looks reasonable (ranges between 0.98-1.02).
Can you look at MAPFAC_M in your wrfinput files, and let me know the range of their values? They should be around 1.

 

[dharma102]

Thanks for your prompt response.. Actually I got this error while running "real.exe" so I don't have any wrfinput files yet...

 

[Ming Chen]

The map_factors are also available in geo_em and met-em files. Please take a look.

 

[dharma102]

As I told the *met_em* files are having a correct range of MAPFAC values(range 0.99 to 1.01).. I don't know what mistake I am doing. Actually I am running a case of 08-aug-2019 and using NCEP-FNL data for initialization. I ran the WRF V3.9 for 2018 some cases and it ran fine but for this new data I am having this error.. any suggestion?

 

[Ming Chen]

If the same code works, then it is possibly because the data itself is damaged. Can you examine the input data as well as the met-em data that doesn't work for REAL?

 

[amartina]

hi all
I'm using WRF 4.2.1 and WPS 4.2, and running 4 different parameterizations (in operation, with GFS), wit the same WPS run, meaning that they are all using the same met_em files.
ONLY ONE parameterization started to fail last 03/08, showing the same behavior.

 -----------------------------------------------------------------------------
  
 Domain  1: Current date being processed: 2020-08-31_12:00:00.0000, which is loop #   1 out of   20
 configflags%julyr, %julday, %gmt:        2020         244   12.00000    
d01 2020-08-31_12:00:00  Yes, this special data is acceptable to use: OUTPUT FROM METGRID V4.2
d01 2020-08-31_12:00:00  Input data is acceptable to use: met_em.d01.2020-08-31_12:00:00.nc
 metgrid input_wrf.F first_date_input = 2020-08-31_12:00:00
 metgrid input_wrf.F first_date_nml = 2020-08-31_12:00:00
d01 2020-08-31_12:00:00 Timing for input          2 s.
d01 2020-08-31_12:00:00          flag_soil_layers read from met_em file is  1
d01 2020-08-31_12:00:00 Turning off use of MAX WIND level data in vertical interpolation
d01 2020-08-31_12:00:00 Turning off use of TROPOPAUSE level data in vertical interpolation
Max map factor in domain 1 =  0.00. Scale the dt in the model accordingly.
-------------- FATAL CALLED ---------------
FATAL CALLED FROM FILE:  <stdin>  LINE:     609
Maybe this is a global domain, but the polar flag was not set in the bdy_control namelist.
-------------------------------------------

any thoughts?

thank you in advance

agu