WRF-Chem 4.3.3 froze on first time step

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Giannis Koukoutsis

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Oct 31, 2025, 3:53:02 PM (3 days ago) Oct 31

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Hello everyone,

I am an MSc student attempting to run WRF-Chem 4.3.3 with indirect effects enabled, in order to investigate the effects of cloud seeding on atmospheric processes.

My configuration uses the Morrison 2-Moment microphysics scheme (mp_physics = 10) and RADM2/SORGAM chemistry with aqueous reactions (chem_opt = 41). I am currently testing a zero-emissions setup, so there are no auxiliary emission files in my /test/em_real directory.

The issue is that the model freezes at the first time step when running ./wrf.exe. The last lines of rsl.error.0000 are:

d01 2024-09-11_00:00:00 ----------------------------------------

d01 2024-09-11_00:00:00 W-DAMPING BEGINS AT W-COURANT NUMBER = 1.00000000

d01 2024-09-11_00:00:00 ----------------------------------------

The files rsl.error.0000 and namelist.input are attached.

Thank you very much for your time and help,

With kind regards,

John Koukoutsis

rsl.error.0000.txt

namelist.input.txt

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