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WRF 4.3.3: "Older v3 input data" error but met_em is V4 format?

hzanganeh

New member
WRF 4.3.3 + WPS 4.6.0 multi-year simulation (1979-2014)

Getting this error when restarting 1980 from 1979:
```
---- WARNING : Older v3 input data detected
---- Error : Cannot use moist theta option with old data
```

BUT my met_em files ARE V4 format:
```bash
$ ncdump -h met_em.d01.1979-01-01_00:00:00.nc | grep -i "V4\|FLAG_"
TITLE = "OUTPUT FROM METGRID V4.6.0"
FLAG_METGRID = 1
FLAG_SOIL_LAYERS = 1
... (all V4 flags present)
```

**Question:** Why does WRF claim v3 data when met_em is clearly V4? Is this coming from the restart file instead of met_em? Should I check wrfinput/wrfrst attributes?

Using moisture tracking (tracer_opt=4). Need consistent use_theta_m settings across restart years.

Thanks!
 

Attachments

  • namelist.input
    2.3 KB · Views: 1
In your nameliustr.inputr, you have the option:

force_use_old_data = .true.

Please delete this option, then try again.
 
Thank you, Ming.

I have wrf V4.3.3 restart issue too.

in my namelist:
&time_control
run_days = 0,
start_year = 1981,
start_month = 01,
start_day = 01,
start_hour = 00,
end_year = 1981,
end_month = 01,
end_day = 10,
end_hour = 05,
interval_seconds = 21600,
input_from_file = .true.,
history_interval_d = 1,
frames_per_outfile = 7,
io_form_history = 2,
iofields_filename = 'myoutfields.txt',
ignore_iofields_warning = .true.,
restart = .true.,
restart_interval = 10080,
io_form_restart = 2,
io_form_input = 2,
io_form_boundary = 2,
io_form_auxinput8 = 2,

But I see in the output:
wrfrst_d01_1981-01-02_00:00:00
wrfrst_d01_1981-01-09_00:00:00

and:
wrfout_d01_1981-01-02_00:00:00
wrfout_d01_1981-01-09_00:00:00

Why can't I see
wrfrst_d01_1981-01-08_00:00:00 ?

also how can I have my last hour be saved as a restart file? I believe start_time + restart_interval does not save the output at the very last hour, even if it matches exactly with the last hour.


thanks
 
Last edited:
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