Error simulating lightning NOx using WRF-Chem.

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Manas Ranjan Mohanty

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Oct 9, 2023, 7:53:30 PM10/9/23
to wrf-chem-lightning
Hi everyone, 

I am trying to run a test case with WRF-Chem by switching on the lightning NOx option. But I am getting an error which states "lightning_init: Selected lightning option requires microphysics and do_radar_ref=1". Do we need to set some specific microphysics options for computing the lightning NOx? 

I am simulating 2 domains at 20km and 4km. I have used the lightning options as 11 and 2 respectively. 

I have attached the namelist file for reference.

namelist.input

Mary Barth

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Oct 10, 2023, 11:59:41 AM10/10/23
to Manas Ranjan Mohanty, wrf-chem-lightning
Hi,
It looks like you just need to add to the namelist in physics:  do_radar_ref = 1 
It appears that the default is 0 for this namelist variable. 
- Mary

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Mary Barth 
Senior Scientist   
phone: 303-497-8186    email: bar...@ucar.edu

National Center for Atmospheric Research
P.O. Box 3000
Boulder, CO 80307

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