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4dvar stops in the middle of the forecast.


I want to use 4dvar to forecast from 15:00 to 18:00 on July 3, 2023.

The observation data to be input is every 5 minutes in the range from 14:00 to 15:00 on July 3, 2023.

I could run 4dvar's da_wrfvar.exe and have WRF run until 18:00 and then rewind to 16:55 on the way back to 15:00. However, there was no pointer indicating the memory containing the data for the next time period at 16:55, and an error termination occurred.

I can see that the value of num_fgat_time calculated in 4dvar from var4d_bin, time_window_max and time_window_min set in namelist.input is 13, so it is working correctly.

What settings should I make to continue the forecast?

I am attaching the namelist.input.

Best regards.


  • namelist.input
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Sorry. Self resolved.

I realized that I had the wrong parameters for analysis_date and time_window_min and time_window_max in namelist.input.

Best regards.