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Lightning from WRF

Posted: Sun Sep 17, 2017 6:09 pm
by meteoadriatic
Hello,

Does anyone know what are all requirements to meet in order to have lightning data in gribs apart from microphysics scheme turned on (does any work?), do_radar_ref=1 and lightning_option=1, also in wrf_cntrl.parm:

Code: Select all

 (LIGHTNING           ) SCAL=( 3.0)
 L=(10000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000)
As a result I get empty field in grib. Anything else needs to be set?
Thx

Re: Lightning from WRF

Posted: Sat Sep 23, 2017 10:44 am
by Gippox
Me too... :roll:

Re: Lightning from WRF

Posted: Fri Oct 13, 2017 9:48 am
by j0nes2k
Wow, I did not know that this field exists, I have never tried this. Did you find any solution in the mean time? Will this output the lightning probability in percent?

Re: Lightning from WRF

Posted: Tue Oct 17, 2017 7:34 pm
by meteoadriatic
I don't think about this as something useful.

It requires fixed time step AND cu_physics = 5. And then you get pretty much same areas as high radar reflectivity and/or high updraft areas, because those schemes use that parameters to forecast lightning. I don't think it is worth it. Just use reflectivity or vertical speed to do the same...

MAYBE in EMS code is improved in a way to be able to use adaptive or other cu_physics. I don't know. Try...