WRFextras

Aerosol climatologies for Thompson aerosol aware

Since WRF v3.6 there is an option to have a micro-physics scheme with awareness on aersol densities. See more details in Thompson Aerosol-aware.

One need to add at WPS - metgrid, the files with the climatologies of aerosos. These climatologies come from GCM runs where aerosols where active. There are 3 different climatologies (QNWFA_QNIFA_Monthly_AWIP/GFS/ERA), comming from the ue of 3 different re-analysis.

In case of using ERA-Interim re-analyses, on should include on the <code<namelist.wps

&metgrid
 fg_name = 'FILE',
 io_form_metgrid = 2,
 opt_metgrid_tbl_path = './'
 constants_name = 'QNWFA_QNIFA_Monthly_ERA'
/

And then link the climatological fle (in this case the ERA-Interim) where metgrid.exe will be run

$ ln -s /share/GEOG/QNWFA_QNIFA_Monthly_ERA ./

At the namelist.input one should have

mp_physics              = 28
use_aero_icbc           = .T.
aer_opt                 = 3

• use_aero_icbc is used to specify that we want to use the QNWFA_QNIFA_Monthly_* aerosol climatologies
• aer_optcode> is used to specify that we want the same aerosol climatologies for microphysics and radiation scheme (oonly for RRTMG)

namelists

Here are provided some nameslits ready to be used

SA50k

Full South American domain at 50 km Archivo:namelist.wps.SA50k.odt, Archivo:namelist.input.SA50k.odt (NOTE: Transform to text files!)

Full South America at 50 km resolution

RELAMPAGO 1dom 4km

RELAMPAGO case-studies single domain at 4 km Archivo:namelist.wps.RELAMPAGO1dom.odt, Archivo:namelist.input.RELAMPAGO1dom.odt (NOTE: Transform to text files!)

RELAMPAGO single domain 4 km resolution

RELAMPAGO 2dom 12, 4km

RELAMPAGO case-studies nested domain at 12 and 4 km Archivo:namelist.wps.RELAMPAGO2dom.odt, Archivo:namelist.input.RELAMPAGO2dom.odt (NOTE: Transform to text files!)

RELAMPAGO 2 domains 12, 4 km resolution