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Using climatological aerosol in mp_physics=28 in WRF V4.4

Q

quince

New member
I've used mp_physics=28 in previous versions of WRF with no problem, but now I'm getting errors from real with V4.4.
Namelist.input contains:
wif_input_opt = 1,
num_wif_levels = 30,
mp_physics = 28, 28, 28,
use_aero_icbc = .true.,

The metgrid file contains I_WIF, P_WIF, W_WIF fields with vertical dimension of 30 and was created with WPS4.4. I wish to initialize WRF with the climatological aerosol fields at time 0 and leave them constant during the run. I'm using 3 domains and the error message from real is:
--- ERROR: Time-varying sfc aerosol emissions not set for mp_physics=28
--- ERROR: Please set qna_update=1 and control through auxinput17 options
--- ERROR: Time-varying sfc aerosol emissions not set for mp_physics=28
--- ERROR: Please set qna_update=1 and control through auxinput17 options
--- ERROR: Time-varying sfc aerosol emissions not set for mp_physics=28
--- ERROR: Please set qna_update=1 and control through auxinput17 options
-------------- FATAL CALLED ---------------
FATAL CALLED FROM FILE: <stdin> LINE: 2782
NOTE: 3 namelist settings are wrong. Please check and reset these options
-------------------------------------------
Any idea what might be wrong?
 
Hi,
This scheme was updated with V4.4. This is the description of the update. Hopefully this helps!
  • Thompson Aerosol-aware microphysics: A black carbon aerosol category is added. To include black carbon in this microphysics as well as its radiative effect, an updated data file, QNWFA_QNIFA_QNBCA_SIGMA_MONTHLY.dat, is required and set wif_input_opt = 2 (option 1 works with water/ice friendly aerosol data only). Support is also added for ingesting real-time data that contains these aerosols (such as from GEOS-5) by setting use_rap_aero_icbc = .true. (Details). Time-varying surface aerosol emission from either climatology or real-time data is now handled using namelist option qna_update = 1 with input file name wrfqnainp_d0* (must set auxinput17_interval and io_form_auxinput17). In addition, biomass burning organic and black carbon aerosols can be added to the model by setting namelist wif_fire_emit = .true.. This option will work with data with and without black carbon, but it is particularly important during active wildfire hence when using a first-guess aerosol source that has information about biomass burning emissions (e.g., GEOS-5). When using this option, it is assumed this aerosol is evenly distributed in the PBL (controlled by namelist wif_fire_inj = 1). Details
 
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