WRF Restart Behavior: Output Time at Restart vs Next Time Step

[Naser Mohammadzadeh]

Hello everyone,

I have a question regarding the restart option in the WRF namelist.

Suppose I run the model hourly for 2 days, from:
2024-01-01 00:00 to 2024-01-03 00:00

The model runs successfully for the first day, and I want to restart from:
wrfrst_d01_2024-01-02_00:00:00

In my first run, I already have:
wrfout_d01_2024-01-02_00:00:00

When I restart the model using wrf.exe, sometimes it correctly produces:
wrfout_d01_2024-01-02_01:00:00

However, in some cases, it unexpectedly generates:
wrfout_d01_2024-01-02_00:00:00 again before continuing.

My question is:

When restarting from a specific time, should WRF generate output starting from the restart time itself, or from the next time step (e.g., +1 hour)?

I hope my question is clear, and I would appreciate any clarification.

Thank you.

Naser

[Gabriele Pfister]

Hello Naser, 

for general questions about WRF, please reach out to the MPAS-WRF User Forum: https://forum.mmm.ucar.edu/

Gabi

--

================================
Gabriele Pfister

Atmospheric Chemistry Observations & Modeling (ACOM) Lab

NSF National Center for Atmospheric Research (NCAR)

Email: pfi...@ucar.edu

Work Phone: +1 303 497 2915

Web: https://staff.ucar.edu/users/pfister

[Muhammad Burhan Khalid]

Hi Naser

Could you share your namelist.input for better understanding that what you want.May be i help you in this regard

Regards,
Muhammad Burhan Khalid.

 

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