[Wrf-users] WRF does not save output for more than 1 hour

[Wang, Yaoping]

Hi All,


I ran into a weird problem running WRF. As I set it up, the history interval is every 60 minutes, and 24 time slices should be in each output file. The model behaved as expected until about 8 years into a long integration. Then the model does not save more than 1 time step. That is, when it restarted from day 2068-07-07 00:00:00, only 1 time steps exist in the file:


 Times =
  "2068-07-07_01:00:00",

whereas an ordinary history file should look like

 Times =
  "2068-07-06_01:00:00",
  "2068-07-06_02:00:00",
  "2068-07-06_03:00:00",
  "2068-07-06_04:00:00",
  "2068-07-06_05:00:00",
  "2068-07-06_06:00:00",
  "2068-07-06_07:00:00",
  "2068-07-06_08:00:00",
  "2068-07-06_09:00:00",
  "2068-07-06_10:00:00",
  "2068-07-06_11:00:00",
  "2068-07-06_12:00:00",
  "2068-07-06_13:00:00",
  "2068-07-06_14:00:00",
  "2068-07-06_15:00:00",
  "2068-07-06_16:00:00",
  "2068-07-06_17:00:00",
  "2068-07-06_18:00:00",
  "2068-07-06_19:00:00",
  "2068-07-06_20:00:00",
  "2068-07-06_21:00:00",
  "2068-07-06_22:00:00",
  "2068-07-06_23:00:00",
  "2068-07-07_00:00:00" ;

I kind of got through day 2068-07-07 by setting history_interval = 120 in the namelist.input file. The model ran and gave the output times like :

 Times =
  "2068-07-07_01:01:08",
  "2068-07-07_02:01:12",
  "2068-07-07_03:01:12",
  "2068-07-07_04:01:12",
  "2068-07-07_05:01:12",
  "2068-07-07_06:01:12",
  "2068-07-07_07:01:12",
  "2068-07-07_08:01:12",
  "2068-07-07_09:01:12",
  "2068-07-07_10:01:12",
  "2068-07-07_11:01:12",
  "2068-07-07_12:01:12",
  "2068-07-07_13:01:12",
  "2068-07-07_14:01:12",
  "2068-07-07_15:01:12",
  "2068-07-07_16:01:12",
  "2068-07-07_17:01:12",
  "2068-07-07_18:01:12",
  "2068-07-07_19:01:12",
  "2068-07-07_20:01:12",
  "2068-07-07_21:01:12",
  "2068-07-07_22:01:12",
  "2068-07-07_23:01:12" ;

which makes no sense, because the history interval was 60 minutes-ish instead of the set 120 minutes. But at least it gave me a restart file on 2068-07-08 00:00:00. So I set the history interval back to 60 minutes and ran 2068-07-08, and again the model stopped after 1 hour:

 Times =
  "2068-07-08_00:00:00",
  "2068-07-08_01:00:00" ;

A `grep csf rsl*` does not reveal any cfl error. The last lines of rsl.error.0000 look like:

Timing for main (dt= 72.00): time 2068-07-08_00:53:56 on domain   1:    0.50543 elapsed seconds
Timing for Writing wrfout_d01_2068-07-08_00:00:00 for domain        1:    0.41741 elapsed seconds
Timing for main (dt= 72.00): time 2068-07-08_00:55:08 on domain   1:    0.51300 elapsed seconds
Timing for Writing wrfout_d01_2068-07-08_00:00:00 for domain        1:    0.45703 elapsed seconds
Timing for main (dt= 72.00): time 2068-07-08_00:56:20 on domain   1:    0.66976 elapsed seconds
Timing for Writing wrfout_d01_2068-07-08_00:00:00 for domain        1:    0.40401 elapsed seconds
Timing for main (dt= 72.00): time 2068-07-08_00:57:32 on domain   1:    0.50574 elapsed seconds
 mediation_integrate.b        1724 DATASET=HISTORY
 mediation_integrate.b        1725  grid%id            1  grid%oid            2
Timing for Writing wrfout_d01_2068-07-08_00:00:00 for domain        1:    0.40513 elapsed seconds
Timing for main (dt= 72.00): time 2068-07-08_00:58:44 on domain   1:    0.50572 elapsed seconds
Timing for Writing wrfout_d01_2068-07-08_00:00:00 for domain        1:    0.95947 elapsed seconds
Timing for main (dt= 40.00): time 2068-07-08_00:59:24 on domain   1:    1.04635 elapsed seconds
Timing for Writing wrfout_d01_2068-07-08_00:00:00 for domain        1:    0.47012 elapsed seconds
Timing for main (dt= 35.88): time 2068-07-08_01:00:00 on domain   1:    0.55670 elapsed seconds
Timing for Writing wrfout_d01_2068-07-08_01:00:00 for domain        1:    0.41406 elapsed seconds

The namelist.input file is attached.

Does anyone have suggestions?
Thank you very much,
Yaoping Wang
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