Lightning NOx emissions
Lightning NOx emissions are supported in WRF-GC v2.0 through HEMCO nad WRF lightning schemes.
To turn on the lightning NOx emissions in WRF-GC v2.0, you should turn on the lightning scheme in WRF-GC. The lightning NOx emissions are highly dependent on the flash rate simulated by WRF model.
Two lightning schemes are supported in WRF-GC:
PR92 (Price and Rind, 1992) based on maximum w
PR92 based on 20 dBz top
Please set the options in the configuration file (
namelist.input) as follows:
&physics lightning_option = 2, lightning_dt = 120, lightning_start_seconds = 600, cellcount_method = 0, iccg_method = 2, do_radar_ref = 1, /